[Q] Wi-fi not working on SGH-i337 S4 (ATT) after "unlock"
Having an issue with my father-in-law's SGH-I337 S4 (ATT). A few months ago my father-in-law had this S4 "unlocked" in Vietnam to use a local SIM and wifi/data hasn't worked since (calling works and I believe texts were ok too). New to Android but I gather they replaced the baseband or something (baseband was MJ9 while build was MJ6). Wifi toggle would not move at all, and data did not work. Also got a error message after trying to toggle the wifi.
I reflashed using the MK2 TAR (from http://forum.xda-developers.com/show....php?t=2621279
). That seemed to get data working and fixed the error but wifi doesn't really work. After first boot/setup, when it asks for wifi network/password, wifi seems to work and shows available wifi networks like expected. I select my network and enter password, then it just hangs for a bit then goes back to the wifi enable screen, with the on/off toggle not green and the area below just says "turning on". Rebooting doesn't change anything. Can't turn on after that. After a hard reset, I am able to do the setup again, but same thing... works to enter password but then never again.
Seems like the options to try are to reflash a kernel or try a 4.3 ROM, but I don't want to take a few steps back after the reflash got the data working again (at least it can be used as a phone again). Also, my main goal is obviously just getting it working like normal, but I also don't want to lose any future flashing because I was rash and did something I shouldn't have.
Thanks for any help you can provide.
S4 SGH-I337 (AT&T) on mk2