Orange Yumo problem

Hi to all, I have unlocked an Orange Yumo with sigma key, but after unlocking the phone does not recognize any sim card. The strange is that I can acces the mobile network settings in phone menu and search for network manualy. I tried to write the backup made by sigmakey but it says unsupported model if the phone is in bootloader mode and the button is inactive if it is in normal mode. Please I need urgent help. It is a customers phone.



Thank you.

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