MTK6575 S3 Android4.0.4 issue with no mobile network - Android Q&A, Help & Troubleshooting

i hop someone here well help me how to fix this issue i have MTK6575 S3 Android4.0.4 Chinese phone is good phones but is been few days i cant get signal and it say no mobile network i have already tried to go setting network it searches for the network i can see 3G UK but when i selected it says unable to connect to this network so pls someone tell me how to fix this issue or a firmware would be great i dont mind if is not android 4.0..

any one please

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TSL/G/0199/017
Good Day All,
Here is a problem.
I have a Samsung Vibrant Galaxy S SGH-T959 from T-Mobile USA and on ECLAIR and I was having issues detecting network in Nigeria. I tried several updates but still got no improvement. However had slight changes with the detecting of Nigerian networks like MTN, GLO & ZAIN after a successful upgrade to firmware version 2.2 (FROYO. UVKBS) but still unable to detect my network ETISALAT. My current Baseband version is (T959UVKB5). Even with the manual network search I still can't detect GSM network.
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Thanks
Since you're not having this problem with other Nigerian providers you should really be asking this to your current provider, they're the ones most capable of helping you out on this. It's clearly not a hardware nor a software issue.
Have you tried changing your access point name info?
Go to settings-wireless and networks-mobile networks-access point names. Click the file and input this info http://www.google.com/support/forum/p/android/thread?tid=29c82c52aa079431&hl=en. I have to do this for my wifes vibrant on simple mobile here in the US.
Sent from my SGH-T959 using XDA Premium App
Thanks a lot for your response....... But I could hardly get good enough network reception to be able to browse of the other networks.... Please help if there is any kinda of Fix for this.

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