iphone 4 ios5.1 invalid sim

freeze4real

hi all i have an iphone 4 here that has been showing me invalid sim for the past 4days.
I have restored countless number of times and it doesn't work.

I have gotten a new sim, and yet it doesn't work.

An ideas how to fix this?

thanks

Sam Mac

freeze4real wrote: »

hi all i have an iphone 4 here that has been showing me invalid sim for the past 4days.
I have restored countless number of times and it doesn't work.

I have gotten a new sim, and yet it doesn't work.

An ideas how to fix this?

thanks

Do a factory reset? It deletes everything but it's worth a try

If that doesn't work, sound like a phone problem

Bring it into an apple retailer or a phone shop

Janedoe10

Try what is logged in this link http://support.apple.com/kb/TS4148

freeze4real

Janedoe10 wrote: »

Try what is logged in this link http://support.apple.com/kb/TS4148

thanks i will try that now.

freeze4real

Sam Mac wrote: »

Do a factory reset? It deletes everything but it's worth a try

If that doesn't work, sound like a phone problem

Bring it into an apple retailer or a phone shop

This is be my last option, thanks though I did a network reset and it didn't work.

freeze4real

Janedoe10 wrote: »

Try what is logged in this link http://support.apple.com/kb/TS4148

I tried this updating carrier settings isn't showing up. I want to resetto the factory settings.

drunkmonkey

Have you had the phone long?

freeze4real

its just under a year.

freeze4real

erasing all settings isnt work, restoring as a new iphone isnt working as well.

godtabh

was it originally on a different network?

freeze4real

godtabh wrote: »

was it originally on a different network?

yes it is from AT&T. But i dont have amicro sim.

godtabh

Was it factory unlocked?

This could be the cause of your problem

ResearchWill

freeze4real wrote: »

hi all i have an iphone 4 here that has been showing me invalid sim for the past 4days.
I have restored countless number of times and it doesn't work.

I have gotten a new sim, and yet it doesn't work.

An ideas how to fix this?

thanks

Did you upgrade to 5.1.1 just before the problem? Did you buy it new as a factory unlocked phone? If not was it factory unlocked or jailbroken and unlocked?

If if was not a factory unlocked phone and you upgraded to 5.1.1 then you will have to wait till jailbreak and unlock comes out to unlock it again.

freeze4real

it wasnt factory unlocked, it was locked to AT&T originally but the ownwer kept it on BB 1.59.00.

I didnt update to ios5.1.1 as doing so will update my baseband.

freeze4real

So i did a network reset and i got a 3 signal but wifi has stoped working.

freeze4real

Resetting netwok settings, location on the airplane mode for 2min fixed it.

thanks for the help.