Oh NOW, ...
I found the reason way my sim card is not working in my Huawei E122. The small distance between the Micro-SIM and the plastic around it (to have the size of a big SIM card) causes pins of the SIM socket to brake and then it is impossible to use any SIM card anymore.
In my case, it caused 2 pins to brake. So my Huawei is dead!
So take care where you put the Micro-SIM!!!
I found the reason way my sim card is not working in my Huawei E122. The small distance between the Micro-SIM and the plastic around it (to have the size of a big SIM card) causes pins of the SIM socket to brake and then it is impossible to use any SIM card anymore.
In my case, it caused 2 pins to brake. So my Huawei is dead!

So take care where you put the Micro-SIM!!!


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