Help a dumdum out guys plz lol

[keithybhoy]

Hiya i could do with some help here lol. My galaxy s turned itself off and would not restart.I removed the battery and sim had a cuppa and rebuilt it back up. It restarted but no longer reconises the simcard. at the top of my phone is a wee picture of a sim with a red ! next to it and the no service blue circle.Ive tried other sims but they didn't work either.
I have not carried out any updates off any sort as i wouldnt have a clue how to lol. the firmware states it as 2.1-update1 and its still on eclair too.
Ive tried to give as much info as i know about but if anybody req some more then let me know ant thanks for the help in advance

[RichH]

Sounds like a hardware fault so would need to go in for repair. Not really much you can do with software to fix issues like these....

[greenman]

Usually in cases like this it is, as RichH said, a hardware fault. Have you dropped it recently?
Alternatively, it could be a conflict with a recently installed application, or in the modem/phone part of your software, or the sim card itself (but as you've tried others we'll rule that one out)
Before taking for repair, try a Factory Reset. Now this will remove data/apps/contacts, so backup your phone with Kies (or your preferred method)
Now press and hold:
Volume up + home button + power button until in Recovery Menu. Select Clear Cache then Factory reset.