I bought a Htc one M9, and flashed Viperone m9 Marshmallow without first update the Stock rom to Marshmallow, and got stuck in bootloader.
Flashed Viper Lollipop, and the phone works again, but now i can't update, because i haven't got a clue which firmware files i should flash, i have found quite a lot of them, and i don't want to brick the darn thing, but i want my Marshmallow..
Could anyone throw me a bone here?
This is my info from the phone:
Any advice is appreciated.