- Apr 26, 2022
I have tried this procedure, unfortunately all pressing reset does is cut the power, even holding reset does nothing apart from cut the power, the lights do not flash, the lights do not light up at all, they only lit up when the unit was running and the car lights were onEach radio is salvageable after uploading the wrong update. It's happened to me twice. Knowing the procedure, having the original update, the radio can be restored without any problem. I do not know what will happen if the control files are wrong, I do not know if the radio can then be saved. It only comes to mind. enter recovery mode, do a factory reset, somewhere I read that the radio will start because it has security files for such an eventuality. Recovery: press reset and hold for 10 seconds, after about 11 seconds in 1 second interval, press reset 3 more times and just put your finger in the display. Like in this movie.
Pressing reset or holding reset restarts the unit....logo come up and go to blank screen with fastboot mode (pic 1)
Pressing reset or holding reset then tapping screen brings up "detected" but still goes to fastboot screen
pressing reset or holding restet then tapping hard with 5 fingers brings up "to recovery now" but then erasing then reboot to logo, then to fastboot screen
Before this happened all I had to do was press reset tap screen and got a screen like this
but now the scan udisk screen does not come at all
I just have to hope now the seller replies to me as I have tried every copy of firmware on this and other threads, I have md5 checked every one to make sure every upd file has the correct checksum
Before each attempt I have removed the fuse to totally cut power and waited 10 minutes or more before trying again and each time is same.
I think next plan is to take it to a phone/tablet repair shop if I do not get a reply from the seller