LG G3 D850 not getting any GSM signals - GSM-Forum

salimbaba · 08-16-2015, 08:38

I have been using my ATT G3 D850 with "other" operator SIM for 4 months now. A day before yesterday we had Network outage for a couple of hours due to security protocol and when the network coverage returned my phone failed to show any signal .

I put my SIM card into my other phone and it worked. I tried another SIM into my G3 still no luck. I tried Hard reset, going back to stock etc. but nothing helped. The phone kept showing "No service".

I noticed that my Baseband showed "Unknown" but my IMEI , WIFI mac and BT mac were intact. So I flashed D850 Modem from XDA and my baseband now showed proper version. And I no longer had "No service" but I still couldn't get any network coverage. The phone was constantly in search for signal mode.

I checked if I required any unlocking from optr locks. The menu said "Your phone is not personalized" so it still is unlocked.

I checked local authorities as well as Imeidata .net both say the phone is clean.
I am clueless what might have gone wrong ? any clues ?

Faheem Anjum · 08-18-2015, 06:43

you need to use service Box like octups box to write NVM are qcn file to fix the problem

08-16-2015, 08:38	#1 (permalink)
salimbaba Junior Member Join Date: Mar 2006 Posts: 2 Member: 246531 Status: Offline Thanks Meter: 0	LG G3 D850 not getting any GSM signals I have been using my ATT G3 D850 with "other" operator SIM for 4 months now. A day before yesterday we had Network outage for a couple of hours due to security protocol and when the network coverage returned my phone failed to show any signal . I put my SIM card into my other phone and it worked. I tried another SIM into my G3 still no luck. I tried Hard reset, going back to stock etc. but nothing helped. The phone kept showing "No service". I noticed that my Baseband showed "Unknown" but my IMEI , WIFI mac and BT mac were intact. So I flashed D850 Modem from XDA and my baseband now showed proper version. And I no longer had "No service" but I still couldn't get any network coverage. The phone was constantly in search for signal mode. I checked if I required any unlocking from optr locks. The menu said "Your phone is not personalized" so it still is unlocked. I checked local authorities as well as Imeidata .net both say the phone is clean. I am clueless what might have gone wrong ? any clues ?

08-18-2015, 06:43	#2 (permalink)
Faheem Anjum No Life Poster Join Date: Nov 2006 Location: (United States Of Islam) Age: 37 Posts: 24,984 Member: 399832 Status: Offline Sonork: Faheem Anjum Thanks Meter: 24,310	you need to use service Box like octups box to write NVM are qcn file to fix the problem