Quote Originally Posted by miroslavbl View Post
Replacement of the chip and reprograming is not option for me. I do not have tools and knowlage for this job. If problem is in hardware, I can do nothing. I hope that is software problem, but...
Very few ppl have the skills and equipment to do it themselves. It's not economical to pay for it to be done anyway, even if you can find someone to do it.

I have worked update via Update.exe and everything was OK several hours. After that, problem is come back.
I think that as it's reoccurring over and over, it's fate is sealed. The flash chip is flaky because it's failing.

@Butters
Can I replace corrupt Region 14 via SD card and xrgn command from other Garmin Alpha 100 device with same HWID number?
Yes you can do that but it's pointless now that an updater.exe flash has been done. The reason being that rgn14 contains the data from fw_all.bin component of the firmware (Garmin calls it "System Software"). So flashing it via a GCD file, via an RGN file, or with a "14.bin" dump (a copy of another [but same] device's rgn14) flash via txt commands with Ldr.bin in SD, ultimately will all have the exact same effect - which is to replace current data in the region with the same data. It's just doing the same thing in different ways.

Likely the device will fail completely sooner or later.