What modem should I flash to use a T-Mobile S4 (m919) on At&t network?
So I have am using already a T-Mobile S4 (m919) on At&t's network... I have already rooted it, flashed Hyperdrive, entered the correct APN, and it works basically well...
Here is what I am wondering, my signal strength seems to be not the best and it makes me wonder, is there a modem, baseband I can flash on the T-mobile version of the S4 that could possibly help it work better on the At&t network... and do so with out making my S4 a paper weight?
Current Phone: AT&T Galaxy S4.
Old phones: Note 2, S3, S2, and many more!