Originally Posted by veletron
My device came from HK, with the 4.1.2 HK firmware. I updated it via ODIN to the the UK 4.2.2 MH1 firmware. On both of these firmwares, 4G worked just fine.
I then updated to MH2 by Kies as it offered to update the device. My 4G stopped working.
Has anyone else had issues with EE 4G in the UK on an N5120 running UK 4.2.2 MH2 firmware?
I would suggest, using mobile odin, flashing the working 4.2.2 MH1 firmware, but removing all the data but the modem. since the MH1 modem worked on your providers 4G it should work just as well on MH2. Then you would not have to redo the procedure of choosing WCDMA. Or did it fix the problem completely so that you still have 4G after reboots etc?
I always flash with Mobile Odin and i am still on my 4.1.2 modem that came with the N5120 when it was new.
My 4G also stopped working after i flashed 4.2.2, but reverting back to the old and known modemdrivers did it for me, and since there are no swedish release of 4.2.2 yet i will keep my old 4.1.2 modem for the time beeing
Samsung Galaxy Mini [GT-S5570], Samsung Galaxy SII [GT-I9100], Samsung Galaxy SIII Mini [GT-I8190], Samsung Galaxy SIII [GT-I9300] and a Nokia N8-00
Samsung Galaxy Tab 7.7 3G [GT-P6800], Samsung Galaxy Note 8.0 LTE [GT-N5120], 2x PoV Tegra 2 10" and a PoV Mobii 7"