. If you see "0 attempts left," the device is hard-locked, and a standard code will no longer work. Firmware Versions:
Contact the service provider the router was originally purchased from (e.g., Orange, Three, or T-Mobile). Many carriers provide the code for free if your contract has ended or for a small fee if it is still active. huawei b535-232 unlock code
If you or someone else has already entered the wrong code multiple times, your device might show "SIM Lock Blocked" or similar. " the device is hard-locked