1. Bailey Martin1's Avatar
    Long story short when I got my One M8 back from HTC repair it was locked back to O2, I thought I could save myself a bit of money by changing roms and other stuff that I knew very little about and unlock the phone myself. It didn't work and now I'm running a custom rom so my sim unlock code (that I eventually purchased after changing everything) won't work.

    I think I also somehow deleted my recovery because whenever I load into recovery from my boot loader I get a red error triangle. RUU doesn't work for me when I try to restore my phone to the stock rom (receive error 171).

    So I'm just wondering what would be the best way to unlock my phone so I can use my sim on it, because I'm not sure what to do right now.

    Not sure what information you'll need, but I'm S-on and my boot loader is unlocked. Would be happy to provide any other information needed.

    Thank you guys.
    07-20-2016 11:10 AM
  2. B. Diddy's Avatar
    Moved to the M8 Rooting forum.
    07-20-2016 10:03 PM
  3. Golfdriver97's Avatar
    Welcome to the forums. When booting into recovery, and at the screen with the red triangle, have you tried pressing and holding volume up while clicking power?
    07-21-2016 10:36 PM

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