There's something that I'm a bit unclear on when it comes to RUUs
Let's say that I'd like to try out the latest Marshmallow release without waiting for the OTA and use the HTC-provided RUU .exe (3.35.617.12)
I'm on a T-Mobile branded M9 and would like to keep WiFi Calling and Visual Voicemail. If I find that I am unable to use these features in the non-branded HTC MM release, will I simply be able to use the T-Mobile branded RUU .exe (2.11.531.19) to revert back or will I be unable to as it's an older version (Android 5.1)
I'm currently still locked and S-ON
I seem to remember downgrades not being possible on my M7 once the hboot was updated to a newer version, but am a bit confused about the specifics of the M9
Thank you, and my apologies if this is a dumb question -- I've done my best to find an answer through searching
Let's say that I'd like to try out the latest Marshmallow release without waiting for the OTA and use the HTC-provided RUU .exe (3.35.617.12)
I'm on a T-Mobile branded M9 and would like to keep WiFi Calling and Visual Voicemail. If I find that I am unable to use these features in the non-branded HTC MM release, will I simply be able to use the T-Mobile branded RUU .exe (2.11.531.19) to revert back or will I be unable to as it's an older version (Android 5.1)
I'm currently still locked and S-ON
I seem to remember downgrades not being possible on my M7 once the hboot was updated to a newer version, but am a bit confused about the specifics of the M9
Thank you, and my apologies if this is a dumb question -- I've done my best to find an answer through searching
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