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i phone 4 no signal after upgrate to ios 5.1.1

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hi all,

pls help for my i phone 4 after upgrade to ios 5.1.1, my phone no signal.

is my i phone locked?

hope can get the asnwer asap, thank a lot...
 
hi all,

pls help for my i phone 4 after upgrade to ios 5.1.1, my phone no signal.

is my i phone locked?

hope can get the asnwer asap, thank a lot...

I assume your using the correct sim as you didn't have problems with the upgrade(no request for activation )
Try taking out the sim card, wiping and replace... or try resetting all settings in Settings>General>Reset>Reset All Settings
 
Ok... what method were you using to have your iPhone unlocked while on 4.3.3? Gevey?

i using i tune to updat my phone, b4 update is ok but after update my phone no signal
is my i phone locked after update?
 
I assume your using the correct sim as you didn't have problems with the upgrade(no request for activation )
Try taking out the sim card, wiping and replace... or try resetting all settings in Settings>General>Reset>Reset All Settings

i try before still the same problem
 
Try once again. Question is, before the update, did you use Gevey SIM and what baseband (firmware) do you have on your phone now???
 
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