I would like to flash an unbranded firmware to my ATT 925 RM-893
Any instructions? Has this been done? What firmware to flash it to and keep my LTE?
Thanks
Assuming the Wikipedia page on Lumia 925 is right, both AT&T and T'mo are just the same phone with different branding.
Here are the unbranded firmwares I've found:
059T8S0 RM-893 VAR LTA MV GREY
059S6H3 RM-893 VAR LTA AV BLACK
059T883 RM-893 VAR LTA MV WHITE
059S8X2 RM-893 GLOBAL WHITE SWAP
059S8X5 RM-893 GLOBAL BLACK SWAP
059S8X4 RM-893 GLOBAL GREY SWAP
On Tmo's, I tried GLOBAL WHITE SWAP, worked perfectly, but there was no LTE under option on cellular but I can't say if it would work on LTE or not (I'm in Brazil).
Another user bought Negri's 925, which comes with 059T883 VAR LTA MV WHITE and shows "L" on speed connection on T'mo network.
So: AT&T's, Tmo's and Negri's are all RM-893, which leads us to think debranding/rebranding wouldn't affect any of the phones capabilites other than software/carrier limited (like wifi calling).
Also, it is important to note I've seen ATT users having problems flashing their device: It seems ATT found a way to block this. Be aware you might not be able to flash a second time (as I've read)