After a little over a year of use, the Atom just all of a sudden froze and turned off. Whether it turned off because I started pushing the power button due to freeze or all by itself, no idea.
It has not turned back on since then
This occured right after a phonecall, while checking system messages from the main screen (i.e. to see why the phone beeped during the call).
Now that I've thought about it, there was one odd thing I think I noticed: I had received an SMS (from a person I know) during the call and after the brief message there were a bunch of emoji at the end of the message. This kind of struck me as odd, because I did not recall seeing such an emoji collection in the mainscreen message area before and also this person practically never uses emojis like that.
So, did displaying the message trigger something odd? Who can say...
Anyway, after some tries and retries at pushing button combinations and charging overnight I have since been trying to fix this device by flashing it. And nothing helps.
I have experience of flashing devices, but not of flashing a MediaTek phone and it all seems really messy
. I got the official ROM from Unihertz and there was also supposed to be an official flash tool, but that flash tool seems to be only downloadable from Baidu (or somesuch) and I cannot access it. I have downloaded multiple versions of the flash tool and tried them, but aside from the ones which claim to be too old to support the firmware version, I always get stuck in the same step: DA 100%, red bar. And then nothing
When I attach the device I get a "MediaTek USB Port" (currently COM12... I think it was, like COM3, originally...). I've tried various versions of the driver too. When the DA 100% red bar has been done, that device "sticks" in the device manager and no longer disconnects, but nothing like a flashing operation still happens. If I then deattach the device, it is no longer recognized by the computer at all. On Windows it just says "Device descriptor request failed". On Linux (I also tried with Linux and get exactly to the same stage as I do on Windows) dmesg shows a similar conclusion: The device is sufficiently offline to not be able to communicate even the "basics" of USB signaling? That can be cured by long pressing the powerbutton, after which I again get successfully to the DA 100% stage. As if that helped
In desperation, I've tried opening the device up and removing the battery. I also tried connecting testpads on the mother board to ground as suggested in a Youtube video. Nothing has helped in any way: this thing still behaves exactly the same as it did when I realized I have to start troubleshooting it.
The worst thing is that this is right about the only phone I own to which nothing
has been done as far as customizations go (the point kind of was to get an easy to carry phone I would not mess up). I bought it for four things: Calls, SMS, Signal, Spotify. No rooting, no other apps installed. Nothing
. It never even got wet or thrown about, I only bought it because it was small and had a headphone jack, not because it was "rugged". And now this mess
Does anyone here have any
idea what I could do now? Please tell me if you though of a possible solution while reading this. I have already posted in Unihertz's own forums and emailed them, but I don't know whether they watch the forums or respond to emails, so I figured I'd try here too.
UPDATE: Unihertz replied to my email very soon after I sent it! And when I requested the flash tool they replied to that within just a couple of hours!!
I now have the official flash tool version. Unfortunately it behaves exactly the same as the later versions of the flash tool, so I have still not been able to resume from the DA 100% stage