Friday, May 27, 2016

Help with installing AT&T Ruu

I'm a very new android user, so please forgive my ignorance.

I'm using a sim unlocked AT&T M8 outside USA with a different carrier. Right now, the bootloader is Locked, CID is 11111111 and S-OFF. I've downloaded the official marshmallow AT&T RUU for m8 from htc website.

I follow the install instructions until the update actually starts. Then it stops after about 10-20 seconds and shows Error 155: unknown error and enters into the recovery steps (in the RUU). By current software number is 4.28.502.2 and im trying to update to RUU_M8_UL_M60_SENSE70_ATT_MR_Cingular_US_6.20.502. 5

Can someone please help me out with this? I've been trying for over a week now. I will never receive the OTA's since I'm not using an AT&T sim. So RUU is the only other option left. Thanks a lot in advance.


from xda-developers http://ift.tt/1NSwj0c
via IFTTT

No comments:

Post a Comment