Network Problem - Galaxy S II Q&A, Help & Troubleshooting

Hello people.
So heres the deal,
I got an Samsung Galaxy s2 (handheld,not blacklisted) from Ireland,from a friend.I dont know which carrier he used there,but the phone worked.
Now it is become weird,I want to use an Latvian sim card,out it in,but it can not connect to service provider,checked wit galaxsim app,no locks are present at all.Then I tried rom flashing,did some stock 4.0.3,4.1.2 and nothing,tried cyanogenmod,nothing,returned to stock 4.1.2.
Rooted the phone,busybox present,checked with several apps again,no locks,but neither does it connect to any Latvian networks.
I got an Estonian sim card,so for an experiment,I inserted it,and guess what,it connected to the network and i could make a call,send sms etc.
So im confused what is with this crappy S2,that he doesnt like latvian networks,but accepts simcards anyway.
Any Ideas to fix it so it does connect to all networks?
Thx in advance.

Have you tried installing a new modem? You can also try hawkerpauls nuke, maybe it has something to do with your friends modifications. Also, search any problems related to Latvian networks, maybe it's a known problem.

Dakura said:
Have you tried installing a new modem? You can also try hawkerpauls nuke, maybe it has something to do with your friends modifications. Also, search any problems related to Latvian networks, maybe it's a known problem.
Click to expand...
Click to collapse
I havent tried these solutions.I'll try and then report

Did you try an other sim from your country/operator? sounds more like your sim is damaged somehow...

EricCartmanez said:
Did you try an other sim from your country/operator? sounds more like your sim is damaged somehow...
Click to expand...
Click to collapse
Yes I did,3 different operator sims

gvidizz said:
Yes I did,3 different operator sims
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Click to collapse
hmmm well then i'd say that another modem also didn't work, right? as cm has another ril as stock, and modems get flashed when you flash a stock firmware... well were the stock fw's you flashed sock odexed ones from your country/operator?

EricCartmanez said:
hmmm well then i'd say that another modem also didn't work, right? as cm has another ril as stock, and modems get flashed when you flash a stock firmware... well were the stock fw's you flashed sock odexed ones from your country/operator?
Click to expand...
Click to collapse
yep,I did.I have 1 friend from sammobile who has helped me earlier,and he provided me everything for my country.
Results 0,so I tossed that samsung away,and said to my friend to search in services for a solution or use it as mp3 :laugh:
He got that piece of crap for 15 Euro anyway :laugh:
thx for help everyone :good:

gvidizz said:
yep,I did.I have 1 friend from sammobile who has helped me earlier,and he provided me everything for my country.
Results 0,so I tossed that samsung away,and said to my friend to search in services for a solution or use it as mp3 :laugh:
He got that piece of crap for 15 Euro anyway :laugh:
thx for help everyone :good:
Click to expand...
Click to collapse
well that's also a solution glad i could help

Related

[Q] Been Having Lots Of Problems. Help me please.

Ok, so basically I got one Galaxy Ace.
I've installed some apps and it crashed and couldn't turn on. Til them the cellphone would work fine.
Then I've flashed it with a 2.3.5 Firmware, and after that I've started having network problems(sometimes Emergency Calls Only, sometimes it connects to the network but when I try to call it beeps and disconnect me, usually it works for one call and then stops).
I live in Canada. I've heard it might be some 3G problems.
I've tried installing the KIES European firmware, and the 2.3.3 Provider firmware. Same problems though.
How should I proceed? Which firmware should I use?
Flash the different modems and see which is better for you .
Sent from my GT-S5830 using XDA App
Which one do you recommend me? Can I change the Modem if I use One Packages?
JFSV said:
Which one do you recommend me? Can I change the Modem if I use One Packages?
Click to expand...
Click to collapse
Only full packages change modems
Sent from my GT-S5830 using XDA App
yes. flash onepackage first and then flash another modem taken from full package. maybe u should also consider to change product code to match ur region/country.
an0nym0us_ said:
yes. flash onepackage first and then flash another modem taken from full package. maybe u should also consider to change product code to match ur region/country.
Click to expand...
Click to collapse
Hm, where can I get a tutorial for that? Thanks for helping me by the way.
i've never done this, but i think to change it u need to dial *#272*imei#
an0nym0us_ said:
i've never done this, but i think to change it u need to dial *#272*imei#
Click to expand...
Click to collapse
Done that, got a screen with "Sales Code" then in the box in which I could type "SER" and below Install and Cancel. Thats weird.
JFSV said:
Ok, so basically I got one Galaxy Ace.
I've installed some apps and it crashed and couldn't turn on. Til them the cellphone would work fine.
Then I've flashed it with a 2.3.5 Firmware, and after that I've started having network problems(sometimes Emergency Calls Only, sometimes it connects to the network but when I try to call it beeps and disconnect me, usually it works for one call and then stops).
I live in Canada. I've heard it might be some 3G problems.
I've tried installing the KIES European firmware, and the 2.3.3 Provider firmware. Same problems though.
How should I proceed? Which firmware should I use?
Click to expand...
Click to collapse
Might it be the provider? I have the same firmware (2.3.5) and I haven't had any of those problems.
It wasn't the provider, could be the cellphone or the firmware. They gave me a new one, same model. It's working properly now. Thanks.

[Q] I9300 3g data loss

hi guys,
i have internet issue. i tried 4.1.2 stock, 4.3 stock, 4.4.2 ported stock, also 4.4.4 custom roms (almost all custom roms) my phone has clone imei. so i have to use patched modems (mk6,mg4 ETC.) but like every 30 mins, i loss my connection to internet. it pop ups 'you used 299.98 kb' i tried almost all roms, even a rom with 4 file (re-partition thing) but it still happens. anyone know how to fix it or whats the problem? in the past i used to same patched modems too. but this issue is new when i tried 4.4.2 ported stock roms.. please help me guys. :angel: thanks!
deezy154 said:
hi guys,
i have internet issue. i tried 4.1.2 stock, 4.3 stock, 4.4.2 ported stock, also 4.4.4 custom roms (almost all custom roms) my phone has clone imei. so i have to use patched modems (mk6,mg4 ETC.) but like every 30 mins, i loss my connection to internet. it pop ups 'you used 299.98 kb' i tried almost all roms, even a rom with 4 file (re-partition thing) but it still happens. anyone know how to fix it or whats the problem? in the past i used to same patched modems too. but this issue is new when i tried 4.4.2 ported stock roms.. please help me guys. :angel: thanks!
Click to expand...
Click to collapse
Did u Try to set mobile network to 3g Only??
virparam01 said:
Did u Try to set mobile network to 3g Only??
Click to expand...
Click to collapse
yes i did, it happens less then auto. but it still happens.
deezy154 said:
yes i did, it happens less then auto. but it still happens.
Click to expand...
Click to collapse
ok strange.
have u tried using some other carrier sim card?
can be a problem with your carrier sim too
virparam01 said:
ok strange.
have u tried using some other carrier sim card?
can be a problem with your carrier sim too
Click to expand...
Click to collapse
no i havent.
i guess its a problem because of sim card. its cracked a little bit.
deezy154 said:
no i havent.
i guess its a problem because of sim card. its cracked a little bit.
Click to expand...
Click to collapse
no just try any other sim card and tell if same problem?

S820 dualsim chinese model no network after upgrade to 4.4.2

Hi all mighty forum members.
I've upgraded my S820, dualsim model, chinese version to AOSP_4-4-2 but lost network. Rooted of course.
I have tested all modem drivers suggested in forums, the suggestion to go with P780.v52,2013/11/06 didn't work either.
I have tested changeing IMEI to new one, set different IMEI to the sims, tested same IMEI to both sims, no luck. I also tested different simcard from different provider to rule out gsm/g3 issue, no good...
I'm a bit stuck here and would appreciate some hint to get throu this nightmare..
Al the best!
/L
lolof66 said:
Hi all mighty forum members.
I've upgraded my S820, dualsim model, chinese version to AOSP_4-4-2 but lost network. Rooted of course.
I have tested all modem drivers suggested in forums, the suggestion to go with P780.v52,2013/11/06 didn't work either.
I have tested changeing IMEI to new one, set different IMEI to the sims, tested same IMEI to both sims, no luck. I also tested different simcard from different provider to rule out gsm/g3 issue, no good...
I'm a bit stuck here and would appreciate some hint to get throu this nightmare..
Al the best!
/L
Click to expand...
Click to collapse
Do not ever change IMEI when you have IMEI ok and have no signal! Modem software is faulty!
Here are some modems for JellyBean and KitKat. You have there custom recovery TWRP too.
Good Luck.
Hi,
I've tested all of those modems for kitkat, no good, but the twrp makes life a bit easier when testing
What I can see it that some of the modems removes the imei after install, but easy to restore with mobileuncle.
Anyone else have any idea what to do or test?
lolof66 said:
Hi,
I've tested all of those modems for kitkat, no good, but the twrp makes life a bit easier when testing
What I can see it that some of the modems removes the imei after install, but easy to restore with mobileuncle.
Anyone else have any idea what to do or test?
Click to expand...
Click to collapse
What ROM did you used before the update ? Did you tried to use another ROM except AOSP ?
I think is a ROM problem !
It was the stock ROM I guess.. Didn't write down what version. I don't mind downgrade as long I get a working phone. Could anyone tip me of witch one I could use? That is a version known to be working.
stympy said:
What ROM did you used before the update ? Did you tried to use another ROM except AOSP ?
I think is a ROM problem !
Click to expand...
Click to collapse
lolof66 said:
It was the stock ROM I guess.. Didn't write down what version. I don't mind downgrade as long I get a working phone. Could anyone tip me of witch one I could use? That is a version known to be working.
Click to expand...
Click to collapse
I will upload some firmware for you tonight...
Sent from my Lenovo P780
************************ EDIT*****************************************
Here is the link with all i have with your phone!
Good Luck!
Hi,
thanks for the files. I installed the 4.4.2 (s820_ROW_s221), twrp 2.7.1.1 and tested with all the modems but no luck what so ever.
I've tested moving the sim from 1:st to 2:nd, no luck, I installed the IMEI stated on the phone, only one and with same number on both, no luck.
Wifi, however, works well as before...
I'm a bit out of ideas and would appreciate some suggestions that not includes using the phone as door stop....
stympy said:
I will upload some firmware for you tonight...
Sent from my Lenovo P780
************************ EDIT*****************************************
with all i have with your phone! [/URL]
Good Luck!
Click to expand...
Click to collapse

SM-G925F Call problem

Hi people, i'm here once again to ask for your help... I have one samsung galaxy s6 edge SM-G925F that is working at 90% only... My problem is that i cant make or receive any voice calls, i can send and receive sms, network, wifi, everything is working except voice calls... IMEI is ok, i checked it already, tried diferent roms but nothing worked... can you please help me to figure out what the problem might be?
Many thanks in advance!
King_ExtReMe said:
Hi people, i'm here once again to ask for your help... I have one samsung galaxy s6 edge SM-G925F that is working at 90% only... My problem is that i cant make or receive any voice calls, i can send and receive sms, network, wifi, everything is working except voice calls... IMEI is ok, i checked it already, tried diferent roms but nothing worked... can you please help me to figure out what the problem might be?
Many thanks in advance!
Click to expand...
Click to collapse
Make sure your network is set to auto
it is set to auto, everything works, but i cannot make or receive voice calls...
everything is working, when i try to make a call it just disconnects, if anyone calls me, it gives the same as if i had it powered off.
King_ExtReMe said:
everything is working, when i try to make a call it just disconnects, if anyone calls me, it gives the same as if i had it powered off.
Click to expand...
Click to collapse
Reflash stock firmware it should solve it. Back Up data first
callumbr1 said:
Reflash stock firmware it should solve it. Back Up data first
Click to expand...
Click to collapse
Tried it already with 2 or 3 different roms and always same result... wich Firmware do you recomend?
King_ExtReMe said:
Tried it already with 2 or 3 different roms and always same result... wich Firmware do you recomend?
Click to expand...
Click to collapse
What region are you and is your phone network locked?
I'm from Portugal, i believe it is unlocked
King_ExtReMe said:
I'm from Portugal, i believe it is unlocked
Click to expand...
Click to collapse
I recommend trying the UK BTU firmware
callumbr1 said:
I recommend trying the UK BTU firmware
Click to expand...
Click to collapse
I'll try it and give you feedbak after. Thanks.
callumbr1 said:
I recommend trying the UK BTU firmware
Click to expand...
Click to collapse
Ok, flashed that firmware and same result... I try to make a call and it just end the call imediatly and change to emergency calls only
King_ExtReMe said:
Ok, flashed that firmware and same result... I try to make a call and it just end the call imediatly and change to emergency calls only
Click to expand...
Click to collapse
Sounds like it's ypur SIM that might have an issue. Can you try a different SIM in your phone?
callumbr1 said:
Sounds like it's ypur SIM that might have an issue. Can you try a different SIM in your phone?
Click to expand...
Click to collapse
My SIM card is working fine... I tryed it in another phone and it works normally
I have the completely same Problem. Did you got anything solved?
froewis said:
I have the completely same Problem. Did you got anything solved?
Click to expand...
Click to collapse
Nop... nothing yet... the problem is still there :crying:
same problem here.. no solution?
Benny0287 said:
same problem here.. no solution?
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Click to collapse
same problem too!! i'm in italy my sim have ever worked very fine on p8 on 4g. but on this phone no..calls stop after 15 sec anytime flashed custom fw rooted note solved first i had a t-mobile rom....
balaualex1 said:
same problem too!! i'm in italy my sim have ever worked very fine on p8 on 4g. but on this phone no..calls stop after 15 sec anytime flashed custom fw rooted note solved first i had a t-mobile rom....
Click to expand...
Click to collapse
Mayby you crached your security file try to see if you have a valid IMEI : *#06#.
bulgdog said:
Mayby you crached your security file try to see if you have a valid IMEI : *#06#.
Click to expand...
Click to collapse
checked a few times all clean. and not blacklisted
IMEI is valid

LG g5 SE - IMEI deleted

Hey guys,
few days ago my mobile network stopped working on this phone. Same sim card works in another phone. Today i saw that IMEI is 'unknown', how to fix this problem?
aammaarr said:
Hey guys,
few days ago my mobile network stopped working on this phone. Same sim card works in another phone. Today i saw that IMEI is 'unknown', how to fix this problem?
Click to expand...
Click to collapse
Did you root? Flash roms?modems? Kinda need a little more info. If u flashed a rom sounds like u got the wrong baseband.
TheMadScientist said:
Did you root? Flash roms?modems? Kinda need a little more info. If u flashed a rom sounds like u got the wrong baseband.
Click to expand...
Click to collapse
No, i didn't do anything ...
same here!
cant connect to any netwrok
I get imei number via the dialler and it just says 0-10
mine however is a phone bought from USA on AT&T nto the UK where i live. It never worked.
ideally want to root it and give it an IMEI, theres nothing on the box to state what it should be.
please help
aammaarr said:
No, i didn't do anything ...
Click to expand...
Click to collapse
If u didnt flash anything or nothin to the device. Then theres a bigger issue at hand.
TheMadScientist said:
If u didnt flash anything or nothin to the device. Then theres a bigger issue at hand.
Click to expand...
Click to collapse
Nothing, i will take to the shop where i bought phone, and then we will see...
thanks

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