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LgG Optimus 2x No network service HELP!!!!

After custom ROM installation, the phone doesn't connect to Mobile network. Wi Fi is OK. I changed several Firmware (CM 7 etc.) it doesn't work on any.
Moreover I can't install anything through SmartFlash, always the same error:
Trying to communicate with IFX modem, and then - timeout error.
What can I do to fix it?!! (((

KDZ_FW updater also doesn't work.
The same with LG Mobile update

death27 said:
After custom ROM installation, the phone doesn't connect to Mobile network. Wi Fi is OK. I changed several Firmware (CM 7 etc.) it doesn't work on any.
Moreover I can't install anything through SmartFlash, always the same error:
Trying to communicate with IFX modem, and then - timeout error.
What can I do to fix it?!! (((
Click to expand...
Click to collapse
hi, i am italian, sorry for my bad english.. but, i buy a 2x an next to hour to the first boot the phone have this problem !
i have tried all possibility, tool lg, smarthflash (ifx modem timeout...) NvFlash... at the end the shop have changed me the phone with new phone and i resolved my problem

Possibly apn changed? Mine does this go to settings> wireless&networks> mobile networks> access point names> and choose your provider from list and exit to see if you have data.
Sent from my LG-P990 using xda premium

version of baseband ??

gabrielecif said:
version of baseband ??
Click to expand...
Click to collapse
"Baseband unknown"

I had the same problem and it's because the APN went missing.

Turn off automatic time and see what happens ....

gabrielecif said:
at the end the shop have changed me the phone with new phone and i resolved my problem
Click to expand...
Click to collapse
I don't know how can I change my phone which is rooted and with installed unofficial software

As for APN and automatic time, will try tomorrow.

Sounds like you got the unknown 622 GB leak, download the 622 Europe BB and flash it, then get LG GetRil and get the 622 RIL, there you go.

Have you payed your bill?
Sent from my LG Optimus 2x using XDA Premium App

Where I can get - "622 Europe BB" ?

Neefy said:
Sounds like you got the unknown 622 GB leak, download the 622 Europe BB and flash it, then get LG GetRil and get the 622 RIL, there you go.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1140182
This one?
Anyway Smartflash doesn't work with my phone.

death27 said:
Where I can get - "622 Europe BB" ?
Click to expand...
Click to collapse
http://www.mediafire.com/temasek
Here you go, p990 -> bb -> 622

Maybe you should try 0725 for me it works better than 0622. Much much better.
Sent from my LG-P990 using XDA App

death27 said:
"Baseband unknown"
Click to expand...
Click to collapse
the phone show the battery charge ??
Try to flash with smartflash a baseband (try the 622) if smarthflash get error "IFX modem timeout" gives up and ask to 'practical assistance for the warranty. I have tried everything and I had the same problem, but it was useless!

same issue
it was all fine and dandy and since the past week the same ****ing thing happens over and over again. I restore backups, flash basebands, delete cache, dalvik, it keeps on happening. It started after i applied the optimization pack by paul

So, finally I exchanged the phone under warranty.
Nothing helped to fix it. The phone shows baseband, battery charge. Everything looks fine, however it can't connect to network.
Now I have a new phone and don't have desire to flash it again )))

Try another usb port then try to smartflash. Perhaps reinstall your drivers

[Q] V20b Newtork Problems?

Hello!
First of all, I am sorry if I have posted in a wrong section, but my OB gets me out of my mind! After I have upgraded to GB v20b, if I let it a couple of hours in stand-by mode or overnight, it looses network carrier signal! :|and I must turn-off and on again and again every time I want to make a call or I need the internet! Or sometimes after I insist on calls, 10 at number, it says "USIM loading complete" and starts calling. What should I do? Did I made something wrong?
Country: Romania
Android version: v2.3.4
Phone carrier when bought: Orange
SIM: Cosmote
Thanks!

Have you check the mobile network setting?
Maybe there's something wrong in there
Like,if it search manually or else then switch it to auto and in reverse
Give it a shot,maybe it helps
Sent from derp-mobile

Nope, nothing change... It remains blocked.. I will try to change the S/W or to put another ROM Thanks anyway!

Okay,no problem
Sent from derp-mobile

Still no positive result I`m still fighting with it... I have installed both v20n and custom zeus, and tested... and nothing changes... after a couple of hours, it loses the network what can I do else?

Either try to flash back to your stock ROM, or flash back to an unrooted version, that is availible for your device and return it to your provider. They will repair it.

You should check the network band for your contry and then choose rom's acording. If you install rom's working on another bands it happens. To me that's a very common problem when intalling european rom's to work in my LatAm bands
Enviado desde mi LG Optimus Black via Tapatalk!

Ok! Thanks guys! Firstly I will check the network band and try a new rom, and if it doesnt work, I`ll reflash it with the original F/W and send back to warranty. Thanks a lot!

[Q] Not registered on network

Hi
I have an unlocked P970, it recognizes my Sim card but there is no bar and it says "Not registered on network". Sim card works on other phones and it even shows my contacts on my phone and change the language and date to my provider when I insert it. I've checked the IMEI and it's correct.
Android version:2.3.4
Baseband version: XMM6160
Software version: V20C
I've tried checking 2945#*970# but all options say "Your phone is not personalized".
I did factory reset but no luck.
I deleted the Entire CP and flashed again and still no luck.
Checked a few other V10 and V20 versions, didn't help. I got security error when tried V30 versions so I switched back to V20.
I also tried http://forum.xda-developers.com/showthread.php?t=1734330
Can anyone help?
Thanks alot

Try asking your current Network Carrier or even flash back to stock LG and ask LG themselves. Sorry if it seems obvious or doesn't help... Good luck bud! :thumbup:
Sent from my LG-P970 using xda app-developers app

What if you try a different SIM card on your phone? Does it work?

von Mandrake said:
What if you try a different SIM card on your phone? Does it work?
Click to expand...
Click to collapse
Already tried it. Sadly doesn't work.

Exergy said:
Already tried it. Sadly doesn't work.
Click to expand...
Click to collapse
Okay...and what if you try to manually register the phone on your network, by choosing it manually?

KU5900 with no mobile connection
Hi everybody!
I hope to be in the correct thread, because i have a problem similar to Exergy.
A friend of mine has a locked/original KU5900 (korean version with 2.2.2) that he used without problem with the korean SIM, in Korea and in Germany.
Now he's in Germany and with a german SIM (that works in other phones) the phone has no mobile connection, neither the possibility to send SMS (only receive them, and make and receive calls).
We tried to download the configuration SMS from O2, but it tells that is not possible tried also to use APN Global from the playstore, and tried to configure manually...but also doesn't work...
Any idea?

i9305 no mobile signal..what else can i try ?

I Have had this i9305 now without mobile signal, with a vodaphone it did used to show signal but in all cases it always says 'no mobile networks' or 'not registered on network' i have tried with every sim i can think of... it was suggested to flash a stock rom which i did..this made no difference, i then tried installing CM11 and followed the guide to the letter.
I know this phone is not blacklisted as i checked with the imei, i have tried flashing different modems but to be honest im not sure what i am flashing to it..i have tried three different ones now starting with XX as i am in uk...i really dont know if i have missed something or doing something drastically wrong..i have read and read and usualy i would have had this resolved by now...can anyone please help me as i want to give this handset to my girlfriend for a present very soon so we can keep in touch..i am at my wits end with it:crying:
Thanks

Try an emergency restore through Samsung Kies - this should eliminate any software related problem. Sounds to be a hardware problem though so get Triangleaway going and send it for repair if that doesn't work.

Flash 4.1.2, then enable and disable the LTE-only mode hack in the hidden service menu (the *#2263# one, not *#*#4636#*#*). (If you have root, you can also access that menu in 4.3 or even the 4.4.2 port, but it's a bit more involved.)
Sent from my GT-I9305 using XDA Free mobile app

Magik_Breezy said:
Try an emergency restore through Samsung Kies - this should eliminate any software related problem. Sounds to be a hardware problem though so get Triangleaway going and send it for repair if that doesn't work.
Click to expand...
Click to collapse
it won't let me do that as it doesn't list the phone as needing an emergency recovery. I flashed a stock rom and the signal is showing but it keeps saying not registered on network.. if I do a search it finds providers but when I opt for the provider of the sim it just perpetually spins at registering on network.
.NetRolller 3D said:
Flash 4.1.2, then enable and disable the LTE-only mode hack in the hidden service menu (the *#2263# one, not *#*#4636#*#*). (If you have root, you can also access that menu in 4.3 or even the 4.4.2 port, but it's a bit more involved.)
Sent from my GT-I9305 using XDA Free mobile app
Click to expand...
Click to collapse
when you say 4.1.2 which rom.. A stock one or a custom.. could you point me please ?.. The stock rom I have flashed is 4.1.3 I didn't flash a radio after as being stock it would be there already ??

Have just followed a guide to root this unit, upon installing root checker it says this device does not have proper root, Odin reports that everything went ok and i get the red pirate android..when the phone boots a pop up comes up saying unfortunatley SU has stopped working... not sure whether KNOX is stopping this ?

no network.
Hellow to you all.
I have got a problem in my s3 LTE.
After installed several rooms my lte not register in WCDMA network.
The mobile phone was from a french network. Bouygues and was unlocked in portugal.
i have got many problems with this phone but i like it very mutch.
the problem that bothers me the most is that i only make and receive calls with full network.
The WCDMA was not working but i allready fix it. Now when i turn to wcdma only it says not register in networck.
the only backup i have from the EFS folder was made by copy- paste and i think the problem was allready there and now i think i had brocken my phone. can you help me???
Excuse my englisb.

967571918 said:
Hellow to you all.
I have got a problem in my s3 LTE.
After installed several rooms my lte not register in WCDMA network.
The mobile phone was from a french network. Bouygues and was unlocked in portugal.
i have got many problems with this phone but i like it very mutch.
the problem that bothers me the most is that i only make and receive calls with full network.
The WCDMA was not working but i allready fix it. Now when i turn to wcdma only it says not register in networck.
the only backup i have from the EFS folder was made by copy- paste and i think the problem was allready there and now i think i had brocken my phone. can you help me???
Excuse my englisb.
Click to expand...
Click to collapse
please start your own thread as it is not relevant to mine.

Someone's suggested this phone is barred.. I have run a check which says it's not blocked but it's been suggested that this is unreliable...I have bars showing but just never registered on network.

Does your IMEI reported in *#06# match the one printed under the battery?
Sent from my GT-I9305 using XDA Free mobile app

hey loady,
did you manage to solve theproblem? i have the same problem since roughly 3 weeks. but honestly, i didnt put much effort in fixing it.
i found a big thread a while ago where the problem is solved... i'll look for it

[Q] 4g problem i9305

Can somebody help me with this 4g problem?
This is what i did:
1.flashed custom ROM (worked like a charm,i did nandroid backup)
2.flashed other custom ROM (didnt like it so I restored the first one from nandroid)
3.everything went well except no imei and no baseband
4.reverted back to stock rom with odin
5.and here is the problem,no 4g signal at all. 3g/2g works fine.
If I post my build.prop can somebody tell me whats wrong?
I have tried to put my sim card in other phone and it works but not in my phone.

Did you enable 4G in Settings?
Sent from my GT-I9305 using XDA Free mobile app

Yes, I did...network mode is set to LTE
Is there a test that I can use to test is it a software or hardware issue?

Maybe an issue of Stock rom you flashed using odin.. Which one exactly have yoi flashed? What modem you have now? And finally, is your S3 i9305 or some i9305T variant?

Check this out:
Typ *#*#4636#*#* and goto Netinformation, then you will find a special-setup for the 2G 3G & 4G.
Sorry about my english. Cause i am german.
Sent from my GT-I9305 using xda premium

Thanks for your replies,I flashed stock german 4.4.4 from sammobile.It worked very good about 2 months.
I think that modem is xxufoa1 and version of phone is i9305 lte international.
If somebody could help me with this issue,I would appreciate that.But no hurries,I got new playmate S6 edge...

try doing a complete wipe of data and cache, then flash stock rom again to see if problem persists

I have tried many times but no help...

Hey, try flashing the parambin.zip file (look for it on google related to s3 lte, you'll find it easily). Another thing to try is just wait with the phone turned on with a valid SIM. I found out that sometimes it delayed a lot to get signal, specially when changing SIM carriers on another country. After a while waiting it finally succeeded (probably unrelated but I also saw on the catlog entries about upgrading the sahara file of the qualcomm chip -the modem-).