Ok, guys I have a problem. I have the actual U version, and previously was activated on Sprint's MVNO (RingPlus to be specific). I took the APL2 firmware OTA yesterday, and after it went through, I lost my service. Phone looked same with all the service related value unchanged (MDN, phone number etc), however, just not picking up the Sprint service. It showed "samsung" as my provider, and could not register on the network, so no voice (hearing "you are roaming ..." for any phone call), no data, no PRL update etc. I tried a ##72786# to wipe the carrier setting, it got stuck in the HFA, then did a factory reset, still would not pass activation phase. It would try five times and stop (no reboot). In my account dashboard, still shows this device being active and all, all the info is matching. Anyone experience similar before?
This was actually the first firmware update after it was activated in any network.
Also to verify, is the MSL on this version 000000? My account shows that, but ##000000# did nothing.