Unlocking xiaomi bootloader with old SIM card? - General Questions and Answers

Hello,
I got a new xiaomi poco and i'd like to unlock the bootloader. However a sim card is needed. I do have an old, deactivated sim card lying around. The phone does detect it but it doesn't recieve any signal and i can enter the xiaomi login menu (impossible without SIM). Has anyone tried unlocking the bootloader with such a card? Was it successful?
Thanks in advance

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liquid80 said:
Just got the 8GB version, unlocked bootloader and rooted.
I put my sim card in and the phone will not recognize it at all. Can it be an error caused by the rooting, unlocking bootloader process?
I am using a GoSmart sim that has been cut down to micro size. The sim works in my xperia T and in my nokia 6700, with an adapter, with no problems. I ordered a micro sim to see if that helps, but in the meantime, I'm wondering the problem was caused by rooting the phone, if its the sim card, or possibly the phone itself (hardware wise).
Also, phone works perfectly aside from the not recognizing the sim.
Thanks
Click to expand...
Click to collapse
It also do with me... When I flash the CM11 rom my SIM is not recognized... Than I need to flash the stock rom again..

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