iPhone no service error 100% fix in 5 minutes
I had this issue for about 1 month & i went through everything- Googling,yahoo search & apple discussion.
At last I have fixed my iPhone4 in 5 min.
First of all u need to know if it a software or hardware issue-
1. Toggle airplane mode for 4 seconds & wait for network.
2. Reboot iPhone.
3. Network reset.
4. Manually choose network.
5. Hardware repair method-
(Switch off your iPhone & take out the sim tray before continuing)
Take out the 2 screws from the bottom near the speaker mesh. Slide up the back panel & take it off.
Now take off the battery by taking off the little screw on the battery terminal.
You will find a very thin black wire near the battery terminal with a small plate on its end.
Near the terminal stand u will find a place to fit the plate. First clean the plate with a cotton cloth gently.
Connect plate on its place it & press it a little till u hear the little sound- tick.
(*Remember not to press so hard*)
Connect the battery & put the screw back. Get the back panel again & put the bottom screws.
Yippee..!!! U have fixed the annoying- NO SERVICE error on iPhone 4.