I have an m7 ATT with HBoot 1.44, S-off, and rooted with a CM12 nightly. CID is CWS_001. I'm switching to T-Mobile and as expected when I throw my t-mobile SIM in and punch in the the unlock code it doesn't work. Unless someone knows of a better solution I need to restore the stock rom, but I don't have a nandroid backup of it anymore. I've been doing research for awhile, but there is a lot of information on this topic and I'm a bit lost. What I've come up with seems to suggest that I won't be able to use my touchscreen if I flash a Stock nandroid because they are all so old. I could really use some advice on how to proceed from this point.
xda-developers