There are two primary ways to circumvent this lock:
This is the safest way to unlock the device without risking permanent damage ("bricking") through firmware modification. Insert a different SIM: B311-221 Unlock Firmware
For units where code entry is blocked, users may "flash" modified firmware. This involves using tools like the HiSilicon Firmware Writer to install a version of the software that has security restrictions removed. Note that newer firmware versions (e.g., 21.310.01.00.00 or later) may require advanced patching of files like config.dat . Important Technical Details There are two primary ways to circumvent this