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SIM Card nit read but working [HELP!!!]

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xSharpi
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(Last edited by xSharpi; 6th December 2013 at 08:23 PM.)
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Question SIM Card nit read but working [HELP!!!]

This is probably one of the oddest things thats ever happened to me, but I was recently on 4.1.2 and unlocked on the AT&T Galaxy S3. Before my SIM would work as normal and show T-Mobile when pulling down the notification bar, data, calling etc. Since I updated to 4.3 there isn't any text when pulling down the the notification not even "EMERGENCY CALLS ONLY" Like when there isn't a SIM in. I can't even access apn's it's telling me I need to insert a SIM card but the thing is I do have one inserted and I can text and call (411 doesnt work for some reason but other numbers do) I can't do data only text and call. Is there a way if I have to, downgade 4.3 to 4.1.2?

Thanks and much appreciated
 
dntesinfrno
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Originally Posted by xSharpi View Post
This is probably one of the oddest things thats ever happened to me, but I was recently on 4.1.2 and unlocked on the AT&T Galaxy S3. Before my SIM would work as normal and show T-Mobile when pulling down the notification bar, data, calling etc. Since I updated to 4.3 there isn't any text when pulling down the the notification not even "EMERGENCY CALLS ONLY" Like when there isn't a SIM in. I can't even access apn's it's telling me I need to insert a SIM card but the thing is I do have one inserted and I can text and call (411 doesnt work for some reason but other numbers do) I can't do data only text and call. Is there a way if I have to, downgade 4.3 to 4.1.2?

Thanks and much appreciated
Not if you installed the offical 4.3 ota, which installs a new bootloader that wont allow you to downgrade. It *should* just fail if you attempt to but if the failsafe doesn't work and it successfully flashes you will have a nice new hardbrick. If you are on 4.3 custom or leaked rom then you should be fine.
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xSharpi
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Originally Posted by dntesinfrno View Post
Not if you installed the offical 4.3 ota, which installs a new bootloader that wont allow you to downgrade. It *should* just fail if you attempt to but if the failsafe doesn't work and it successfully flashes you will have a nice new hardbrick. If you are on 4.3 custom or leaked rom then you should be fine.
Do you know any fix or what I could do have my data and my sim not showing backup again?
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