i9505 4.4.2 after unlock no 3G network - GSM-Forum

Marek09 · 05-23-2014, 01:12

Hi.
I have a big problem. Ofcourse phone before unlock was 100% ok.
Phone have new security, so I can't read codes. Unlock was ok, but now have only 2G network. 3G - no service.
Is there a solution for this issue? Work on Samsung tool v17.5.

**blang** · 05-23-2014, 09:59

Quote:

Originally Posted by Marek09

Hi.
I have a big problem. Ofcourse phone before unlock was 100% ok.
Phone have new security, so I can't read codes. Unlock was ok, but now have only 2G network. 3G - no service.
Is there a solution for this issue? Work on Samsung tool v17.5.

some phones have issue with this.
if this not ok for you, just flash efs backup inter format to phone and phone will be to locked status with 3/4g.

Marek09 · 05-23-2014, 11:54

I just sow that. Phone was from o2 Ireland.

Sim T-Mobile, non cutted, original micro sim:
i9505 - no network 3G
Nokia 500 - 3G works fine

Sim - Plus GSM, sim cutted to micro sim
i9505 - 3G works fine
Nokia 500 - 3G works fine

Anyway decided to leave it in this state.

twin army · 06-12-2014, 10:45

Quote:

Originally Posted by blang

some phones have issue with this.
if this not ok for you, just flash efs backup inter format to phone and phone will be to locked status with 3/4g.

hi i have same problem with my s4. its brand new phone came direct from 3 network, on 4.4.2 with new security. i unlocked it and now i have problem with 3g mobile data connection problem. please advice how to flash efs backup inter format and solution please. thanks

GSMsurgeon · 06-12-2014, 11:08

Quote:

Originally Posted by twin army

hi i have same problem with my s4. its brand new phone came direct from 3 network, on 4.4.2 with new security. i unlocked it and now i have problem with 3g mobile data connection problem. please advice how to flash efs backup inter format and solution please. thanks

reflash efs backup via odin select as pda..then restore back as locked..then downgrade then unlock then upgrade it..if need to unlock via z3x..otherwaise use other tool..

cziankirck · 07-16-2014, 15:27

is this the example of backup as blang said? ( I9505_BACKUP_14-7-2014_10-37-44 ) i got it in samsung tool backup folder.....my i9505 also damage 3g comes with no service after unlock using z3x....

cziankirck · 07-21-2014, 09:09

ok finally unlocked phone i restore backup first then unlock via codes safe no more downgrade and no more damage 3g..

05-23-2014, 01:12	#1 (permalink)
Marek09 Freak Poster Join Date: Oct 2006 Location: Poland, zachodniopomorskie Posts: 109 Member: 365267 Status: Offline Thanks Meter: 24	i9505 4.4.2 after unlock no 3G network Hi. I have a big problem. Ofcourse phone before unlock was 100% ok. Phone have new security, so I can't read codes. Unlock was ok, but now have only 2G network. 3G - no service. Is there a solution for this issue? Work on Samsung tool v17.5.

05-23-2014, 11:54	#3 (permalink)
Marek09 Freak Poster Join Date: Oct 2006 Location: Poland, zachodniopomorskie Posts: 109 Member: 365267 Status: Offline Thanks Meter: 24	I just sow that. Phone was from o2 Ireland. Sim T-Mobile, non cutted, original micro sim: i9505 - no network 3G Nokia 500 - 3G works fine Sim - Plus GSM, sim cutted to micro sim i9505 - 3G works fine Nokia 500 - 3G works fine Anyway decided to leave it in this state.

07-16-2014, 15:27	#6 (permalink)
cziankirck Junior Member Join Date: Jul 2014 Posts: 33 Member: 2223597 Status: Offline Thanks Meter: 3	is this the example of backup as blang said? ( I9505_BACKUP_14-7-2014_10-37-44 ) i got it in samsung tool backup folder.....my i9505 also damage 3g comes with no service after unlock using z3x....

07-21-2014, 09:09	#7 (permalink)
cziankirck Junior Member Join Date: Jul 2014 Posts: 33 Member: 2223597 Status: Offline Thanks Meter: 3	ok finally unlocked phone i restore backup first then unlock via codes safe no more downgrade and no more damage 3g..