For Huawei routers, use Huawei Unlock Code Calculator v3. Enter your IMEI code into one of the above calculators, press "Calculate", and copy down the code you receive. Now turn off your Huawei modem device and insert an "invalid" SIM. Turn it on and go back to the device homepage. Navigate to Advanced Settings > SIM Settings > Unlock But by and large, if you supply a carrier with a PAC Code on Friday, Saturday or Sunday, you can expect the number transfer to be completed on the following Tuesday. 3. Check the SIM works in your .

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