Cant get to Developer Mode esc+refresh+power not working

[ZhiHua Wan]

Can you guys help esc+refresh+power does not work and when I hold esc+refresh poking the power button doesn't work like it says in

https://www.chromium.org/a/chromium.org/dev/chromium-os/developer-information-for-chrome-os-devices/generic

My chromebook is Acer Chromebook 11 CB3-131

Ps: It has work before but esc+refresh+power doesn't work anymore and I have not use my chromebook for 2 months ish

[Mike Frysinger]

please describe the exact steps you're taking and what you're seeing as a result.

esc+refresh+power gets you to the recovery screen.  you then have to hit ctrl+d to boot via disk.

-mike

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[ZhiHua Wan]

When I hit esc + refresh + power it does the power turn off(aka when you normally hit power) and it will not go in to recovery mode

[12aland]

It is acting like exactly like this

"It's like the refresh and ESC key aren't being recognized and the power button behaves as if I was pressing it by itself.

I'm going to try the USB restore. But if that doesn't work, that means it's a hardware problem right?"

[Bernie Thompson]

If the device is on, and you hold the refresh key, then tap the power key, it should immediately reboot (refresh+power triggers a hard reset). 

If this does not happen, and the system acts like the power button was being pressed normally (e.g. display starts going white to shut down) then it implies that your refresh key signal might be loose (maybe worth verifying refresh causes pages to refresh). 

The esc key is sampled when the device reboots from this hard reset to determine if it should go into recovery mode, if you hold esc for a few seconds after seeing it hard reboot and it does not go into recovery, the esc key may be lose (again it may be worth checking if esc works in a normal context in the OS). 

-Bernie

[ZhiHua Wan]

In my chrome://policy/ it has DeviceBlockDevmode Not set So how do i disable it because this may be my problem or may not be problem

[Mike Frysinger]

is your device enrolled ?  or is it a personal device you own ?

-mike

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[ZhiHua Wan]

Nvm something happend and it worked thanks for your guys help(I switched accounts and it some how worked) I got developer mode

[maybe ItsYou]

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[John Moss]

I too am having issues getting into recovery screen. I have tried numerous times, with other accounts and have no luck. after pressing esc+refresh nad power button, my C720 boots into login screen and not the recovery screen. My chrome://policy setting is good to go. Any more suggestions would be appreciated.

[Luigi Semenzato]

Some of the devices are sensitive to timing, including one of
Google's, the samus aka 2nd-generation Pixel, IIRC. On the samus one
had to hold escape-reload, then push and hold power for 2-3 seconds.
Tapping power briefly would just do a reset and put one back on the
login screen.

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[John Moss]

I tried your suggestion, but with no luck. It seems that my Chromebook will boot if you press the power button briefly, but if you hold it down for any more than that, there is no response. Thanks for the suggestion. Hopefully, one of many. All I need is that one that does the trick.

[Daisuke Nojiri]

Can you try to press and hold esc+refresh, tap power button, then wait (while holding down esc+refresh)?

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[Bernie Thompson]

On Fri, May 31, 2019 at 10:24 AM Bernie Thompson <bhtho...@google.com> wrote:

Daisuke's idea will likely help, the recovery mode entry is kind of broken into two parts:

1. Refresh + power causes a hard reset of the device.

2. Refresh and esc is scanned/latched after a hard reset by the firmware to enter recovery mode.

So what can happen is if the firmware is slow for some reason, it may reset and take a while to boot the firmware back up, and if the refresh and esc keys are not pressed when the firmware comes back up and scans/latches them, it will just boot normally.

Usually the firmware comes up so fast you would not notice, and can tap all three buttons, but some systems can take longer.

-Bernie