Beaglebone Black won't power on, did I do something wrong? :(

[Jason Stapels]

Hi all,

Just wanted to share my experience with my dead BBB. It's my first experience with the Beagle line so it's possible I did something wrong somewhere so I thought it would be a good idea to share my experiences in case other newb's read this. Feel free to skip to the bottom for the symptoms.

-- Begin Background Info --

I was lucky enough to get my BBB almost right away from Digikey. I immediately installed the drivers on my Mac and started playing around with it the first night. Unfortunately, the second night I couldn't get my Mac to allocate an IP address through the USB to talk to it so I thought maybe I shouldn't have skipped that "update software" step. So next I downloaded the latest "flash eMMC" image, wrote it to an SD card and then went through the upgrade process.

Here's where things went a little South. After the first attempt the USR lights eventually went solid (presumably indicating the flashing process was finished) but when I rebooted it without the SD card, the power light would come on but it wouldn't boot. After a couple repower attempts I decided to flash it again. This time, at some point during the flash process, the board seemed to just lose power (all the LEDs were off). Attempts to power the board resulted in the same as before, power light comes on but no booting.

So, my assumption was I messed up the SD card image. I downloaded/reimaged the SD card again, went through the flash process and this time it seemed to finish. Now when I powered on the board it appeared to boot up. However, I still couldn't get it to pick up an IP address from the Mac (after reinstalling both drivers and a couple reboots). I read somewhere that someone had a similar issue and an update to Angstrom solved it.

This time I plugged the board into my linux box and I was able to access the running linux image (yay!). I immediately SSH'd in, and went through the Angstrom upgrade (opkg update; opkg upgrade). The upgrade took awhile and seemed to have a few issues with the new kernel modules (/lib/modules/blah didn't exist). I figured it was just a warning and after the upgrade finished I unplugged the board and plugged it back into my Mac...

-- End Background Info --

The power light came on... the USR lights all went solid for a couple seconds... and then the board died. I can no longer seem to power the board up at all. I've tried multiple USB cables, multiple USB ports on multiple machines, and even tried the DC jack with a 5v/2.2A supply. :( I submitted an RMA (although my board doesn't seem to have a serial number) because I don't think I did anything wrong, but I'm a very sad panda regardless.

Any ideas? Anything I should check?

~ Jason

[Jason Stapels]

An update for the curious. After some prodding from the all-power-Gerald, I was able to bring the board back to life again by... are you ready... holding down the POWER button. Which means I'm probably the biggest idiot ever!? I guess I expected the PWR led to be lit any time 5V was feeding the board, regardless of it's On/Off state.

Certainly, in the dozen or so previous times I plugged the board in, just giving it power caused it to power on, so the idea of the POWER button actually being used to turn it on never occurred to me. If I could save face just a little here, I did actually press it a couple times before throwing in the towel, I just didn't consider holding it down for a few seconds.

In embarrassed shame,

~ Jason

[Gerald Coley]

You are a pioneer! Columbus was not looking for America. But you are now the Columbus of the power button!

I am trying convince the SW folks to add support for the power button but it is down the list  somewhere.

Gerald

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Gerald

 

ger...@beagleboard.org

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[Gerald Coley]

You have blown the processor. Request an RMA.

beagleboard.org/support/rma

No fuses on the board. Plugging in the USB and DC supply is totally acceptable and supported.

Gerald

On Thu, Jul 4, 2013 at 3:21 AM, Will Kostelecky <will.ko...@gmail.com> wrote:

Help!

My BBB was working fine, great in fact, but not so much at the moment.   When I plug it into a power source, be it a known good 5v supply that I have been using with it for weeks, or into either of two computers via USB, I get one dim little flash from the power LED and then NOTHING else.   No other lights flash.   If I hold down the power switch I will get another brief and dim flash after a couple of seconds.   Again, no other LEDs light and nothing else happens.

This started to happen when I plugged the BBB into a computer using a USB cable while it was still plugged into the 5V power source.  Could this have fried something?   Are there any poly fuses that might come back to life after a rest?

Frustrating as I was making such good progress on my project!

Will

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Gerald

 

ger...@beagleboard.org

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http://beagleboard.org/

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[Will Kostelecky]

[Will Kostelecky]

Gerald:

Is there any chance that future hardware will include a poly fuse or two to protect the processor or other key circuitry (similar to the Raspberry Pi)?  I know that I may have been careless but a board that could get used like an Arduino (which is very very robust) seems like it needs more protection than the BBB has at the moment.

In any case, further on the story of a BBB with a blown processor.   I am in the UK and have bought my boards from Element 14.  You mentioned that you thought they would be able to send a BBB in for repair but when I talked to them they did not think they had this capability.

I now have two boards that I have managed to fry.   The most recent one as a result of a lead dragging across the battery on a Real Time Clock module with all other power being off.  If they can be repaired for less than the cost of a new board I would be glad to pay.   I can get the boards to the US as I suspect that will be easier.   Can you let me know if they can be repaired at reasonable cost?   If so I will request RMAs.

Thanks,
Will

On Thursday, 4 July 2013 15:38:46 UTC+1, Gerald wrote:

[Gerald Coley]

I have no plans to do this. We had tried this on earlier boards and it caused us some issues. If the fuse blows, it means the current got too high, a result of the chips on the board getting fried. So it actually does not do much to prevent damaging the board.

There is only so much that can be done to prevent the boards from being blown by the wrong voltage. Adding cost to every board and still not being able to make it 100% fool proof makes no sense.

To date we have had 1 occurrence in over 60,000 shipped, so adding cost to prevent this doesn't make a lot of sense.

Gerald

[Will Kostelecky]

Gotcha.   Are they repairable for a reasonable cost or is it the scrap heap for them?  I suspect it may be the latter.

Thanks, Will

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[Gerald Coley]

Depends. We have have always been able to repair the boards. Generally, it is just the PMIC that needs repalcing

Gerald

[nikola....@gmail.com]

Greetings, i have one issue with my BBB. When i plug power in mini USB or with 2 Ampers 5 Volts power adapter BBB lights up and it works. But, when i turn it off, i can not turn it back on immediately, no matter what i do (hold power button, or reinserting power cable). I can power it up about two or three hours latter, when i left it without power. I assume because i think that processor gives power to the board it somehow wont do it. But i do not understand how it is working after i left it without power for a while ?

Thank you.

[Gerald Coley]

Neither do I. This is a new one. I suggest you request an RMA.

Gerald

On Tue, Sep 3, 2013 at 3:39 AM, <nikola....@gmail.com> wrote:

Greetings, i have one issue with my BBB. When i plug power in mini USB or with 2 Ampers 5 Volts power adapter BBB lights up and it works. But, when i turn it off, i can not turn it back on immediately, no matter what i do (hold power button, or reinserting power cable). I can power it up about two or three hours latter, when i left it without power. I assume because i think that processor gives power to the board it somehow wont do it. But i do not understand how it is working after i left it without power for a while ?

Thank you.

[thekin...@gmail.com]

Erm... Thanks! I had the same problem! How stupid are we?

I think it comes from using the Raspberry Pi which has no power button. 

I have sat here for 2+ hours trying differing cables, power supplies and even took apart some cables thinking I could make a perfect one... Then I found your message and all things are solved.

Thanks! 

[NIkola Stojkov]

уторак, 03. септембар 2013. 10.39.24 UTC+2, NIkola Stojkov је написао/ла:

Greetings, i have one issue with my BBB. When i plug power in mini USB or with 2 Ampers 5 Volts power adapter BBB lights up and it works. But, when i turn it off, i can not turn it back on immediately, no matter what i do (hold power button, or reinserting power cable). I can power it up about two or three hours latter, when i left it without power. I assume because i think that processor gives power to the board it somehow wont do it. But i do not understand how it is working after i left it without power for a while ?

Thank you.

I found the answer. The thing is, i had to shutdownt BBB with command halt, then when i pluged usb power back it worked :D

Just ina case somebody else has this kinde of issue.

Cheers! 

[Gerald Coley]

You could have also pressed the power button.

Gerald

--

[twis...@gmail.com]

Hi,

I just recieved my BBB I plugged it to my PC's USB and once I connected it to my HDMI monitor, I heard the computer as is the USB device was disconnected and the BBB turned off... I unplugged the HDMI and connected only the USB. It starts because the power LED turns on then the top USR LED turns on then the rest for a second and then they start blinking and everything goes off again.

The mini hdmi cable is the one I use for my camera and it works just fine. The monitor is the one that I'm using right now so there is no problem there neither.

Is there any way to know what the problem is? It seems that suddenly it draws too much current or something and turns off. Could it be that? 

It was the first time I powered it and this is a real bummer. I have used the original BB with no problems yet.

Thank you

[Gerald Coley]

Sounds like you are drawing too much power from the USB port on your PC and it does not like it. Try a DC power source. 

Make sure the monitor and your PC are plugged into the same ground along with the DC supply..

Gerald

[nitesh singh]

Thanks a lot guys , I just discovered one of my supposedly fried Beaglebone Black works after pressing power button and reset button in cycles for few minutes after reading this post. Although it had stopped while i was doing something on it and never booted up after.

Now going to try the same on another Beaglebone Black that is also fried up. Hope it works.

[fenie...@gmail.com]

hello sorry for my english, I also had a problem with the BBB, after giving the command "poweroff", the BBB is off, now the power led does not turn on when I put the usb cable and the power cable. you have any idea?

[Gerald Coley]

Did you try pushing the power button or unplugging the power/USB cable and plugging it back in?

Gerald

On Fri, Jan 17, 2014 at 10:12 AM, <fenie...@gmail.com> wrote:

hello sorry for my english, I also had a problem with the BBB, after giving the command "poweroff", the BBB is off, now the power led does not turn on when I put the usb cable and the power cable. you have any idea?

[fenie...@gmail.com]

I tried it, but the Power LED does not light, all the LEDs are off....

[Gerald Coley]

Sounds like the board may have gotten zapped. Leave it unplugged for 30 minutes, all cables, and try it again. If is still does not work, then you will need to get it looked at.

Gerald

On Fri, Jan 17, 2014 at 10:30 AM, <fenie...@gmail.com> wrote:

I tried it, but the Power LED does not light, all the LEDs are off....

--

[fenie...@gmail.com]

I did as you said, but nothing works :(

[Gerald Coley]

Ok. Then you need to get it looked at.

http://beagleboard.org/Support/RMA

Gerald

On Fri, Jan 17, 2014 at 1:11 PM, <fenie...@gmail.com> wrote:

I did as you said, but nothing works :(

--

[fenie...@gmail.com]

ok! thanks to everyone for the help

[faceti...@gmail.com]

I have a device that I'm building in quantity for someone, and it has a simple halfwave rectifier and switching reg to provide 5V to power the BBB.  They power it with 24VAC.

I'm not sure what exactly is causing it, but they're having problems with the BBBs dying on them.  I got one back today, and I get a single quick dim flash of the power LED if I plug in USB, or rapid flashing if I use the barrel jack.  After seeing this post, I noticed that there's a burnt crater on the processor.

I was originally thinking power problems, but now I'm starting to think IO misuse.

These boards use primarily I2C, and the BBB is driving a couple of I2C peripherals for sensors and solenoid control.  Additionally, I fanned out eight GPIO to connectors which are for future use for PWM to run light dimmers and switch inputs, but they're not supported yet.  I just found out that they had the PWM lines hooked up, and I don't yet know what they had connected to them.  

[Gerald Coley]

A schematic would be helpful/ You can send to to me direct if you like.

Craters are definitely not good. It does sound like a IO stress issue. The LED acting the way it sounds means the PMIC is seeing excess current and shutting down.

Gerald

[faceti...@gmail.com]

I'm starting to piece together that it was likely some kind of major ground potential difference issue.  He hooked up the light dimmers without a ground because the dimmers don't provide a specific ground line next to the dimmer line, and the dimmers are powered off of some power supply running from 277VAC, and my board is powered off a 120->24VAC isolated transformer where one leg is the local digital ground, and without referencing them together somehow I imagine he put some really ugly potentials on the IO pins.

[Gerald Coley]

If that was the situation it definitely could have caused an issue.

Gerald

[venka...@gmail.com]

Hey Will,
I too face same problem on my BBB. Can you please tell me how you solved the issue? RMA on beagleboard.org isn't responding, whom should I aproach?

[Gerald Coley]

OK. So I responded to your RMA. We are closed on the weekend. Sorry. And Friday was a US holiday. Sorry again.

Your RMA will be approved. Only solution is to replace the processor.

Gerald

For more options, visit https://groups.google.com/d/optout.

[venka...@gmail.com]

Thank you and sorry about my time zone I didn't know it was a holiday.

[Will Kostelecky]

Gerald, who responded to my message, will likely respond to you as well.   The BBB is a great board but it does seem to be very susceptible to getting fried.  I have had two visit the Beagle Hospital.   I can only suggest that posting here in hopes that Gerald gets back to you...

Regards,
Will

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[Gerald Coley]

Yes, it can get fried if you don't press the power button and allow the PMIC to shut down the power rails in order..

Gerald

For more options, visit https://groups.google.com/d/optout.

[John Syn]

From: Will Kostelecky <will.ko...@gmail.com>
Reply-To: "beagl...@googlegroups.com" <beagl...@googlegroups.com>
Date: Monday, July 7, 2014 at 7:05 AM
To: "beagl...@googlegroups.com" <beagl...@googlegroups.com>
Subject: Re: [beagleboard] Beaglebone Black won't power on, did I do something wrong? :(

Gerald, who responded to my message, will likely respond to you as well.   The BBB is a great board but it does seem to be very susceptible to getting fried.  I have had two visit the Beagle Hospital.   I can only suggest that posting here in hopes that Gerald gets back to you...

It is only “susceptible” if you operate the board outside it’s specification and this is true of any board with direct access to the processor I/O. If you take the necessary static precautions and don’t put more than 3v3 on the GPIO and 1v8 on the A/D pins, the board will work without issue. I have two of the original BBB A5A which I use daily and they have worked without issue. 

Regards,

John

For more options, visit https://groups.google.com/d/optout.

[alme...@gmail.com]

I seem to have fried it too and Im planning on sending it for RMA. The only issue that I have right now is the the serial number smudged off the sticker...any recommendations?

[Benedek]

Hi,

I updated the Angstrom Distribution 2013-09-04 image on my BBB. The process seem to run well. After it ended, I get the SD card out from the BBB, and restarted it, with plugging in again the BBB via USB. But then only the power led lits, and nothing else.
I've repeated the process many times, even with Debian 2014-05-04, but the result is the same.

Could anyone help me?

Thanks,
Ben

[baan...@gmail.com]

Hi,

I think I also fried my BBB.

No led light when powered, either with USB or jack.

Can I request a RMA from Portugal?

What would be the expected cost?

Thanks

Bruno

On Thursday, July 4, 2013 3:38:46 PM UTC+1, Gerald wrote:

You have blown the processor. Request an RMA.

beagleboard.org/support/rma

No fuses on the board. Plugging in the USB and DC supply is totally acceptable and supported.

Gerald

On Thu, Jul 4, 2013 at 3:21 AM, Will Kostelecky <will.ko...@gmail.com> wrote:

Help!

My BBB was working fine, great in fact, but not so much at the moment.   When I plug it into a power source, be it a known good 5v supply that I have been using with it for weeks, or into either of two computers via USB, I get one dim little flash from the power LED and then NOTHING else.   No other lights flash.   If I hold down the power switch I will get another brief and dim flash after a couple of seconds.   Again, no other LEDs light and nothing else happens.

This started to happen when I plugged the BBB into a computer using a USB cable while it was still plugged into the 5V power source.  Could this have fried something?   Are there any poly fuses that might come back to life after a rest?

Frustrating as I was making such good progress on my project!

Will

On Tuesday, 30 April 2013 15:23:23 UTC+1, Gerald wrote:

You are a pioneer! Columbus was not looking for America. But you are now the Columbus of the power button!

I am trying convince the SW folks to add support for the power button but it is down the list  somewhere.

Gerald

On Tuesday, April 30, 2013, Jason Stapels wrote:

An update for the curious. After some prodding from the all-power-Gerald, I was able to bring the board back to life again by... are you ready... holding down the POWER button. Which means I'm probably the biggest idiot ever!? I guess I expected the PWR led to be lit any time 5V was feeding the board, regardless of it's On/Off state.

Certainly, in the dozen or so previous times I plugged the board in, just giving it power caused it to power on, so the idea of the POWER button actually being used to turn it on never occurred to me. If I could save face just a little here, I did actually press it a couple times before throwing in the towel, I just didn't consider holding it down for a few seconds.

In embarrassed shame,

~ Jason

On Tuesday, April 30, 2013 8:19:57 AM UTC-4, Jason Stapels wrote:

Hi all,

Just wanted to share my experience with my dead BBB. It's my first experience with the Beagle line so it's possible I did something wrong somewhere so I thought it would be a good idea to share my experiences in case other newb's read this. Feel free to skip to the bottom for the symptoms.

-- Begin Background Info --

I was lucky enough to get my BBB almost right away from Digikey. I immediately installed the drivers on my Mac and started playing around with it the first night. Unfortunately, the second night I couldn't get my Mac to allocate an IP address through the USB to talk to it so I thought maybe I shouldn't have skipped that "update software" step. So next I downloaded the latest "flash eMMC" image, wrote it to an SD card and then went through the upgrade process.

Here's where things went a little South. After the first attempt the USR lights eventually went solid (presumably indicating the flashing process was finished) but when I rebooted it without the SD card, the power light would come on but it wouldn't boot. After a couple repower attempts I decided to flash it again. This time, at some point during the flash process, the board seemed to just lose power (all the LEDs were off). Attempts to power the board resulted in the same as before, power light comes on but no booting.

So, my assumption was I messed up the SD card image. I downloaded/reimaged the SD card again, went through the flash process and this time it seemed to finish. Now when I powered on the board it appeared to boot up. However, I still couldn't get it to pick up an IP address from the Mac (after reinstalling both drivers and a couple reboots). I read somewhere that someone had a similar issue and an update to Angstrom solved it.

This time I plugged the board into my linux box and I was able to access the running linux image (yay!). I immediately SSH'd in, and went through the Angstrom upgrade (opkg update; opkg upgrade). The upgrade took awhile and seemed to have a few issues with the new kernel modules (/lib/modules/blah didn't exist). I figured it was just a warning and after the upgrade finished I unplugged the board and plugged it back into my Mac...

-- End Background Info --

The power light came on... the USR lights all went solid for a couple seconds... and then the board died. I can no longer seem to power the board up at all. I've tried multiple USB cables, multiple USB ports on multiple machines, and even tried the DC jack with a 5v/2.2A supply. :( I submitted an RMA (although my board doesn't seem to have a serial number) because I don't think I did anything wrong, but I'm a very sad panda regardless.

Any ideas? Anything I should check?

~ Jason

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Gerald

 

ger...@beagleboard.org

g-co...@ti.com

http://beagleboard.org/

http://circuitco.com/support/

[Gerald Coley]

You can request an RMA from anywhere. I suggest that you do that. Cost would be mainly the shipping cost to us.

Gerald

For more options, visit https://groups.google.com/d/optout.

[stimulus...@gmail.com]

I plugged a USB WiFi adapter into my BeagleBone Black and it abruptly stopped working and will not turn on. I have been very careful with the board, but I assume that somehow the WiFi adapter drew too much current and fried the processor. I tried multiple power sources, including powered USB hubs and 5V DC. I held down the power button and reset button for a long time, but no luck. It's too bad because I was making a lot of progress. My board says Element14 and has two stickers on it- does Element14 handle RMA requests the same as beaglebone.org?

[Gerald Coley]

I have no idea how Element14 handles RMA. You need to ask them.

Gerald

On Sun, Nov 16, 2014 at 12:25 AM, <stimulus...@gmail.com> wrote:

I plugged a USB WiFi adapter into my BeagleBone Black and it abruptly stopped working and will not turn on.  I have been very careful with the board, but I assume that somehow the WiFi adapter drew too much current and fried the processor.  I tried multiple power sources, including powered USB hubs and 5V DC.  I held down the power button and reset button for a long time, but no luck.  It's too bad because I was making a lot of progress.  My board says Element14 and has two stickers on it- does Element14 handle RMA requests the same as beaglebone.org?

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Gerald

 

ger...@beagleboard.org

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[amin...@gmail.com]

I think I also have a dead BBB. I have used an "incompatible" usb cable ( same connector but has an extra jack output) to power it up. Since then the pwr led goes on for less than a second then goes off. Pressing the reset button doesn't help.

Should I go for an RMA?

[Gerald Coley]

If it were me, I would.

Gerald

On Mon, Dec 22, 2014 at 4:22 PM, <amin...@gmail.com> wrote:

I think I also have a dead BBB. I have used an "incompatible" usb cable ( same connector but has an extra jack output) to power it up. Since then the pwr led goes on for less than a second then goes off. Pressing the reset button doesn't help.

Should I go for an RMA?

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[Jones Jebaraj]

I was trying to flash an angstrom image to my beaglebone black. After some time I noticed that all the lights were off. I thought that this is normal after the  flash process and I disconnected the SDcard.Then I powered on the board and to my great dismay, I found that none of the LED was working. Have I blown up something? This is the second board that isnt working. Am I eligible for an RMA? Please help me. 

[evilwulfie]

if you were flashing while connected to the USB as a power source. get a 2 amp external power supply, plug
into barrel jack and reflash.

On 1/1/2015 11:31 PM, Jones Jebaraj wrote:

I was trying to flash an angstrom image to my beaglebone black. After some time I noticed that all the lights were off. I thought that this is normal after the  flash process and I disconnected the SDcard.Then I powered on the board and to my great dismay, I found that none of the LED was working. Have I blown up something? This is the second board that isnt working. Am I eligible for an RMA? Please help me. 

[Jones Jebaraj]

Thank you for the timely reply. I was using a barrel connector for the power supply. (5V, 1 A). And to add, the LED doesnot glow when connected to usb also.

[Jones Jebaraj]

Any ideas?

[Jones Jebaraj]

Any ideas?

[Jones Jebaraj]

Any ideas?

[Jones Jebaraj]

Any ideas?

[Jones Jebaraj]

Any ideas?

[Ki...@lriver.com.tw]

I also have same problem for my two BBB Rev C. One have no response when plug the power, either from usb or DC jack, and the other one just have power led flashing once then nothing happen. 

I follow the user guide carefully to use the BBB such as push power button for 8 second to turn power off, but still got the problem. I have disable the HDMI pin in Env.txt for PWM function. I use six pins to receiver signals from three DC motor encoder, three pins to output PWM signals to control the speed of motor and three pin for the direction of motors. 

 

I filled out the RMA about one week before and got no response at all.  

BBB org. should take this as a serious problem for this product since I never face such kind of power problem on the other embedded system. 

[Will Kostelecky]

Help!

My BBB was working fine, great in fact, but not so much at the moment.   When I plug it into a power source, be it a known good 5v supply that I have been using with it for weeks, or into either of two computers via USB, I get one dim little flash from the power LED and then NOTHING else.   No other lights flash.   If I hold down the power switch I will get another brief and dim flash after a couple of seconds.   Again, no other LEDs light and nothing else happens.

This started to happen when I plugged the BBB into a computer using a USB cable while it was still plugged into the 5V power source.  Could this have fried something?   Are there any poly fuses that might come back to life after a rest?

Frustrating as I was making such good progress on my project!

Will

On Tuesday, 30 April 2013 15:23:23 UTC+1, Gerald wrote:

You are a pioneer! Columbus was not looking for America. But you are now the Columbus of the power button!

I am trying convince the SW folks to add support for the power button but it is down the list  somewhere.

Gerald

On Tuesday, April 30, 2013, Jason Stapels wrote:

An update for the curious. After some prodding from the all-power-Gerald, I was able to bring the board back to life again by... are you ready... holding down the POWER button. Which means I'm probably the biggest idiot ever!? I guess I expected the PWR led to be lit any time 5V was feeding the board, regardless of it's On/Off state.

Certainly, in the dozen or so previous times I plugged the board in, just giving it power caused it to power on, so the idea of the POWER button actually being used to turn it on never occurred to me. If I could save face just a little here, I did actually press it a couple times before throwing in the towel, I just didn't consider holding it down for a few seconds.

In embarrassed shame,

~ Jason

On Tuesday, April 30, 2013 8:19:57 AM UTC-4, Jason Stapels wrote:

Hi all,

Just wanted to share my experience with my dead BBB. It's my first experience with the Beagle line so it's possible I did something wrong somewhere so I thought it would be a good idea to share my experiences in case other newb's read this. Feel free to skip to the bottom for the symptoms.

-- Begin Background Info --

I was lucky enough to get my BBB almost right away from Digikey. I immediately installed the drivers on my Mac and started playing around with it the first night. Unfortunately, the second night I couldn't get my Mac to allocate an IP address through the USB to talk to it so I thought maybe I shouldn't have skipped that "update software" step. So next I downloaded the latest "flash eMMC" image, wrote it to an SD card and then went through the upgrade process.

Here's where things went a little South. After the first attempt the USR lights eventually went solid (presumably indicating the flashing process was finished) but when I rebooted it without the SD card, the power light would come on but it wouldn't boot. After a couple repower attempts I decided to flash it again. This time, at some point during the flash process, the board seemed to just lose power (all the LEDs were off). Attempts to power the board resulted in the same as before, power light comes on but no booting.

So, my assumption was I messed up the SD card image. I downloaded/reimaged the SD card again, went through the flash process and this time it seemed to finish. Now when I powered on the board it appeared to boot up. However, I still couldn't get it to pick up an IP address from the Mac (after reinstalling both drivers and a couple reboots). I read somewhere that someone had a similar issue and an update to Angstrom solved it.

This time I plugged the board into my linux box and I was able to access the running linux image (yay!). I immediately SSH'd in, and went through the Angstrom upgrade (opkg update; opkg upgrade). The upgrade took awhile and seemed to have a few issues with the new kernel modules (/lib/modules/blah didn't exist). I figured it was just a warning and after the upgrade finished I unplugged the board and plugged it back into my Mac...

-- End Background Info --

The power light came on... the USR lights all went solid for a couple seconds... and then the board died. I can no longer seem to power the board up at all. I've tried multiple USB cables, multiple USB ports on multiple machines, and even tried the DC jack with a 5v/2.2A supply. :( I submitted an RMA (although my board doesn't seem to have a serial number) because I don't think I did anything wrong, but I'm a very sad panda regardless.

Any ideas? Anything I should check?

~ Jason

--

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[김진수]

Hey, I think I'm undergoing the symptom like what you'd have experienced... What can I do for recovery of BBB?? What does it mean that;

[I guess I expected the PWR led to be lit any time 5V was feeding the board, regardless of it's On/Off state.]

I was designing the program that can controls GPIO through SSH terminal, when it's power was downed. I wondered around the internet, and found this.

What can I do for this exactly?????

2013년 4월 30일 화요일 오후 9시 19분 57초 UTC+9, Jason Stapels 님의 말:

[Jordi Segura]

My BBGreen got fried (when I power it up it just dims once the power led and that's all it does).

Can someone explain me what I did wrong so it won't happen to me or others again?

Explanation of what I did: The BBG died after several days working 24/7, powered up from a power supply 5V 2A, with an 3G usb dongle connected on it, and (maybe that's my fault ...) I connected the Tx output of another microcontroller to one Rx input of the BBG but also to one Rx input of a BBB (I had both the BBG and the BBB receiving the same Tx signal from a third micro)
The same power supply was powering both systems (BBG and BBB) and I also interconnected GNDs. The third micro sending the Tx signal was powered from the BBB. BBB is working well so far.

Cheers.

El dimarts, 30 abril de 2013 14:19:57 UTC+2, Jason Stapels va escriure: