I tried to upgrade from Android M preview 3 to 6.0 Marshmallow using the flash-all.bat.
There were error messages and the phone would not boot into recovery.
I went back to fastboot to flash files one at a time.
When I try to flash bootloader it fails with the "Preflash validation error" message.
Is this telling me that I can't flash the bootloader because it was already flashed during the (unsuccessful) flash-all.bat?
Can I flash the other files to get the phone back to working order?
There were error messages and the phone would not boot into recovery.
I went back to fastboot to flash files one at a time.
When I try to flash bootloader it fails with the "Preflash validation error" message.
Is this telling me that I can't flash the bootloader because it was already flashed during the (unsuccessful) flash-all.bat?
Can I flash the other files to get the phone back to working order?
