Why can't my phone read any sim card!?
I put a sim card in my phone but it neither detects its presence nor does it read it .. I can't get any sim network service.
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Make sure that the SIM tray closes completely and isn't loose. If you use a SIM tray from a different model or from another phone manufacturer, it might not fit properly. Try using another SIM card. If you don't have one, go to your carrier's retail store and ask them to test with another SIM card.
It also may be a problem with the board or antenna.
Hope this helps.
- Tay
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@manroal if you have tried different SIm cards and are sure that those are working properly, then you may need to take a look at the Sim card reader circuitry on a board level. Follow the Samsung flowchart for the Sim card error
To find the components use this Galaxy A50 Component Layouit and the search function of your PDF reader to locate the components,
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Loose SIM card slot will caused the card losing the connection with the reader of the device. Solution: You can try to apply some pressure to the slot check again if the slot hold the SIM properly. 3. Dust over the slot and SIM card reader making the slot incapable of reading the card properly.
Regards,
Will
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