Bought a note 3 online from overseas and my at and t sim card wont work says no service
I assume that you are talking about the samsung galaxy note 3 which use a micro-sim and support 2g, 3g and 4g network: if you are getting 'no service' it means that your note 3 cannot 'register' itself to the AT&T provider: try using this specific sim with another mobile from the same location and if it works then it is most likely a configuration issue with the note 3 (e.g. you must select the correct 2g or 3g or 4g network to connect).
If your sim does not work with another mobile phone, then the SIM is probably not activated and will not register/will have no service: call AT&T help desk to get the SIM/number activated.
ps. you can always take your Note 3 to an AT&T dealer and ask them to help you set your device for free (but ask first!).
Hope it helps.
I9502 Android 4.2 MTK6572 not booting
Remove and replace battery, if that fails try to start in safe mode, remove all cards, press sower and vol up at same time. Some history might help?
How can i fix this
the IMEI has to be registered with your service provider for their provisioning to download onto the phone. Removing the battery should reveal the IMEI number and you can then call your service provider to have that data corrected. Also note that if the phone happens to be a CDMA device ( Verizon or Sprint ) it may need a SIM card. on rare occasions these cards have memory holes or have been otherwise damaged and may need replaced.
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