iPhone 4 no service problem

[Noizeteck]

Hello, im new at this forum.
I have a problem with my iPhone 4 black 16gb version.
When it its connected to the network,after 1-2 days it disconnects and says "No service"
Then i have to restart it to connect to the network again.
I try to put off the 3g,i try to turn off the PIN of the sim card,i change the GSM antenna in the phone with a new and nothing,the problem still remains.

Anyone knows what have to do? im very disappointed with that.
As i have see,this problem is very popular to iPhone 4 and 4s users and apple replaces the defective phone with a new,but my phones' guarantee is expired.

Sorry for the bad English.

[taleb_amine8]

try to restore with original firmware in case its factory unlock
if not try to install ultrasn0w from cydia

[diesel57]

Originally Posted by Noizeteck

Hello, im new at this forum.
I have a problem with my iPhone 4 black 16gb version.
When it its connected to the network,after 1-2 days it disconnects and says "No service"
Then i have to restart it to connect to the network again.
I try to put off the 3g,i try to turn off the PIN of the sim card,i change the GSM antenna in the phone with a new and nothing,the problem still remains.

Anyone knows what have to do? im very disappointed with that.
As i have see,this problem is very popular to iPhone 4 and 4s users and apple replaces the defective phone with a new,but my phones' guarantee is expired.

Sorry for the bad English.

Was handset dropped or screen changed? explain how it got like this will get you more replies

[Noizeteck]

Originally Posted by diesel57

Was handset dropped or screen changed? explain how it got like this will get you more replies

i dropped on the carpet but i see thousand users have the same problem ...
Its from my country so the ultrasn0w is useless,i dont have to unlock it!

[freakee1]

under the battery connection is the antenna connection (end of the black wire), this is covered with a small guard and screwed down. It is a push on connection and sometimes comes loose when the phone is dropped (or just loose) - it will affect the reception of the 3g component of the phone. Get someone who is good with electronics to check this connection.

if you have reception and loose it and comes back, it has nothing to do with "being locked" so don't worry about ultrasn0w


goodluck

f