how to unbrick mcx-1705ad headunit

[K0EN1E]

I hope I post it in the right topic since this is about my headunit (car audio device)
My MCX-1705AD (Podofo but many brands are known) is having a bootloop, it wont start up.
Booting to recovery is not possible via frontpanel so I did it with "COL0" testpoint on the mainboard.
Then it shows "no command" screen and from there I grounded the "PWR" testpoint (frontpanel again don't work)
It took me a few days to figure out how to boot into recovery but again a problem; the only 2 options here are "reboot system now" and "apply update from adb".
But ADB via usb is not possible, the 3 ports on the device acts like HOSTS so my PC doesn't sense any USB device (tried windows and ubuntu).
On the PCB there are not labeled testpoints like D+ or DP only RX and TX, RX1 TX1 RX2 TX2 I connected to a PL2303 USB stick (rx to tx, tx to rx and gnd), of course with the proper drivers but only gives errors in SPflashtool. Am I out of options now?
Some info about the device:
It's 1 DIN car stereo with flip-screen, type MCX-1705AD, PCB labeled as MCX-1704 and frontpanel PCB MCX-1703...
Firmwarefile from seller is labeled as A2098
Processor Mediatek MT8127a

More info http://specdevice.com/showspec.php?id=1770-bc17-d896-7aa80033c587

[[email protected]]

I hope I post it in the right topic since this is about my headunit (car audio device)
My MCX-1705AD (Podofo but many brands are known) is having a bootloop, it wont start up.
Booting to recovery is not possible via frontpanel so I did it with "COL0" testpoint on the mainboard.
Then it shows "no command" screen and from there I grounded the "PWR" testpoint (frontpanel again don't work)
It took me a few days to figure out how to boot into recovery but again a problem; the only 2 options here are "reboot system now" and "apply update from adb".
But ADB via usb is not possible, the 3 ports on the device acts like HOSTS so my PC doesn't sense any USB device (tried windows and ubuntu).
On the PCB there are not labeled testpoints like D+ or DP only RX and TX, RX1 TX1 RX2 TX2 I connected to a PL2303 USB stick (rx to tx, tx to rx and gnd), of course with the proper drivers but only gives errors in SPflashtool. Am I out of options now?
Some info about the device:
It's 1 DIN car stereo with flip-screen, type MCX-1705AD, PCB labeled as MCX-1704 and frontpanel PCB MCX-1703...
Firmwarefile from seller is labeled as A2098
Processor Mediatek MT8127a

More info http://specdevice.com/showspec.php?id=1770-bc17-d896-7aa80033c587

Hi buddy, trying the same, did you get any output on this as of now?

Regards,
Nasaka Smith

[K0EN1E]

No, have plans to remove the coreboard wich runs android and replace it with raspberry PI. Nice project these days!

[mancini]

You can use MTK droid tool Windows-application to unbrick Mediatek smartphones.

[Gallealonso]

My good friend is just doing such things, I will advise him to join the forum or let him tell me his opinion!