[firmware] MT7-L09C900B317 Android Lollipop 5.1.1

in order to update to the new B317 you need to have 5.1 Lollipop update (Build B308) installed on your phone otherwise you'll be wasting your time.

Download B308 >>> http://www.carbontesla.com/2015/06/d...-zip-emui-3-1/
Download B317 >>> https://mega.nz/#F!OxAxCYyL!ZStMEH6br3Z9SNS8GhLZ7Q

B308 requires your device to have B137SP03 KitKat firmware installed.
Download B137 >>> http://www.carbontesla.com/2015/02/a...37sp03-update/