w220 insert sim problem . is there any body having any tricks or any idea about this problem
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w220 insert sim problem . is there any body having any tricks or any idea about this problem
Make a alimpeza contacts in the sim card in the device. Make cleaning in the same sim card contacts. Use a rubber school for this cleaning. This procedure tends to be.
Another procedure and give a reader in the heat of the chip unit.
I hope I have helped ...