I have a Samsung GT-E2220 but it prompt me for sim password wheni insert my sim in.,. and i was trying to rest it but it also prompt me the security password with 8 digit,and i was thinking if you can help solve my problem..
i think your phone is asking for sim unlock code from your service provider. you can remove the simlock from your samsung M310 phone through codes. you can get the codes from your service provider itself else you can get the code from online providers like Unlocking4u.com
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