Question about Samsung Galaxy S Iii S3 Gt-i9300 16gb Marble White Gsm Factory Unlocked Gsm I9300 S3 3g Hsdpa 850/900/1900/2100 - Pre-order
Some of the reasons why sim card not working in your mobile
1.If your mobile was not unlocked you had get a message asking you to enter a PIN. Get the pin from an online vendor like
Unlocking4U Supported Phones .
2.With a warning that you have 10 attempts to enter the correct PIN code or it could be locked forever ,if you do not get that message it's "mostly likely" unlocked.BUT find a phone with a known working SIM and see if it will work and
connect to the network.
3.This has to be a problem with the SIM card slot, which is soldered down to the logic board. It's possible that it's a mechanical problem , you might be able to open it up and discover that the card-detect switch is failing to detect SIM card insertion.
Posted on Feb 10, 2014
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Posted on Jan 02, 2017
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