Garmin 645 Serial Number

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Analisa Wisdom

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Aug 5, 2024, 7:49:02 AM8/5/24

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Ihad the same problem with Android (Samsung A70) and managed to fix it. I had the permissions OK but it did not work. I did the following: 1) I removed the Connect-apps "Access Contats" -permission from phone settings. 2) Rebooted the phone. 3) Tested with a call and it worked as it should ie showing only the number. 4) Closed the Connect app 5) I gave Connect the permission again in phone settings. 6) Opened and Synced the app with VA3 (not sure if this had anything to do with the fix...) 7) Tested again and it shows the caller name from Contacts.

Like Travis implied above, the range is from 0 to (2^31)-1 (0x7FFFFFFF or 2147483647), and you can use something like provided function to get a number between n and m. (I think you may have to need to add a cast to float somewhere in that expression)

It's def not well-documented -- you sort of have to infer that by "non-negative" and "Toybox.Lang.Number", it means that the range is the entire set of non-negative Numbers. (A Number is a signed 32-bit integer). That's the most reasonable interpretation of the docs, anyway, I guess.

I just created this in my barrel that has a bunch of helper functions. Seems to work. But if I set lo/hi to a small range, like say: 5 to 8... at least in the simulator, it seems to camp on a value like "7" for many iterations. Is this a simulator bug or is my implementation bad? I looked at your code example, but I don't get how adding a value to "m" (max) works, or why the RAND_MAX helps.

The problem is that you're doing a modulo operation. This would be no problem if RAND_MAX would be evenly divisible by your modulus, but usually that is not the case. As a very contrived example, assume RAND_MAX to be 11 and your modulus to be 3. You'll get the following possible random numbers and the following resulting remainders:

Here's one source for an answer similar to Travis's. Note the caveat about large ranges and 32768 integers doesn't apply to monkey C, since Monkey C's Math.rand() returns a 32-bit number. It's only marginally better than the original algorithm (see below).

Using division gives only a minute improvement by itself -- the results may be more random, but they're still usually skewed. Assuming rand() produces all numbers up to RAND_MAX with equal probability, this will NOT produce numbers from 1 to 12 with equal probability, except in the (vanishingly rare) case that RAND_MAX happens to be a multiple of 12.

When N is close to RAND_MAX, and if the range of the random number generator is not a multiple of N (i.e. if (RAND_MAX+1) % N != 0), all of these methods break down: some outputs occur more often than others. (Using floating point does not help; the problem is that rand returns RAND_MAX+1 distinct values, which cannot always be evenly divvied up into N buckets.) If this is a problem, about the only thing you can do is to call rand multiple times, discarding certain values:

Sorry for posting images of code, but the forum rejected my post multiple times when I posted code as text . I also hate the way I have to manually edit image dimensions to avoid tiny inline images. The UX here is just awful.

Is there any way of having inReach SMS messages sent to a mobile phone come from a different number? I ask because for a particular mobile phone, I can send an SMS message and they can receive it. However, they are unable to reply to it. They used to be able to reply when the inReach message came from a different number. Thank you.

This has nothing (directly) to do with the originating number. Garmin uses SMS gateways to deliver iR to phone (SMS) traffic. The gateway depends on the location of the target phone. The gateway chooses the "from" number on the message that the recipient sees on the phone. This choice is essentially random. If you send several messages to the same number, each one might have a different "from" number.

In order to enable replies, the Garmin servers record the iR device ID, the outbound number selected by the gateway (which appears as the "from" number to the recipient), and the recipient's phone number. When the recipient replies, the reply goes to the gateway (which owns the "from" number). The gateway forwards the message to the Garmin server, along with the replying phone number. The server looks up the phone number pair, determines the iR device address, and sends the message on.

The information on the server has a limited lifetime on the order of several weeks. After that, replies no longer work. I normally "prime the pump" prior to each trip. I send a message to each person whom I want to be able to contact me on the trip. Each of them can simply reply to the most recent message from me. This ensures "fresh info" stored on the server.

If you are sure that (a) the recipient has a fresh message from you AND (b) that the recipient is attempting to reply to the newest message, then you should open a support ticket. Because of the way some phones "thread" SMS messages, it's easy to become confused and reply to an "old" conversation - one for which the reply info on the server is no longer available. So be sure that's not the problem before opening the ticket.

The 'from' number appeared to change for all recipients when I changed supplier for my iR subscription. I went through a local supplier who set me up with a professional plan. I then went with a personal plan, directly with Garmin and that's when the 'from' numbers appeared to change. The new 'from' number for one recipient does not seem to allow them to reply. However, I have not ruled out the threading of the SMS conversation you mention and that's a good point.

One thing though, you suggest the 'from' number might change after several weeks but that's at odds with what I understand from Garmin from their web page below, where I have included the relevant text.

I doubt that changing from an enterprise plan to a personal plan (by itself) would result in changing gateways. Maybe it's just coincidence that the from numbers changed at the same time. Or maybe something to do with the geographic location of the previous "supplier"?

This is an interesting academic discussion. I will be keen to see if people can still send me an SMS after a period of several weeks, without me sending them one in the meantime. I will test on my own phone in a month or so.

All (three) recipients saw iR messages from me change to a different 'from' number the very day my professional plan ended and my personal plan started. It's worth noting though, things didn't work reliably for about 48hrs after I changed. Some messages iR messages got lost in both directions as I was testing.

I suspect you're right about data being erased eventually but not much data is being held; just a link between a telephone number (the person sending the SMS) and the iR 'address' in whatever format that is.

Garmin folks, I recently had several items taken from my car, including a Nuvi. I filed a police report and gave them the model and SN. I also called Garmin support and let them know it was stolen. They can't track a GPS but they listed it as stolen in their system and disabled any map or software updates. After 2 weeks, the police called and they recovered my Nuvi. It was easy to prove it was mine since I had provided the SN. Garmin was very helpful in reinstating the update functions in their system once I called back. I hope none of you find yourself in a similar situation. One other strategy I may do now is include a .txt file on the micro SD card with my contact info in case it is ever stolen again. No guarantee anyone would think to look there, but it can't hurt.

Thanks for the info. The text file idea is simple and easy but I doubt it would work with anyone other than a pawn shop. If the bad guy sells to an individual (who is just as bad, in my opinion), that buyer is unlikely to give a damn. Still wouldn't hurt to put the file there.

A stolen GPS receiver is also why you should never use your exact home address when setting up "home" location. I use a nearby fire house. --

"You can't get there from here" Login or register to post comments Fri, 04/22/2016 - 3:03pm CraigW 16 years Maybe perpster wrote:A stolen GPS receiver is also why you should never use your exact home address when setting up "home" location.Please explain how a stolen GPS with your real home address puts you at more risk, especially if you keep your vehicle registration in the vehicle which also lists your address.

When you ask GE to Backup the device, it will then ask you for a folder name. I gave it C:\Backup. GE then created a folder under C:\Backup named Garmin. Then within the Garmin folder it creates a separate folder named "Backups" and within that folder it will create a folder for each device you backup - giving that folder a name that is the "serial number" of that specific device.

Inside that folder, GE creates a folder whose name follows the pattern "yyyy-mm-dd (hh.mm.ss) in order to keep multiple backups and then be able to let you choose from multiple backups by showing them to you with names of the form "mm/dd/yyyy hh:mm" whenever you ask GE to do a Restore.