C. Removing operator branding or unlocking SIM (where permitted)

| Risk | Explanation | |------|-------------| | | Incorrect firmware or NVRAM corruption can result in a non-bootable device (hard brick). | | Security vulnerabilities | Many tool versions are distributed as cracked executables containing malware, ransomware, or keyloggers. | | Legal issues | IMEI modification is illegal in the US (CFR 47 § 2.925), EU, India, and most countries. | | Warranty void | Huawei will refuse service for any device flashed with unofficial tools. | | Loss of OTA updates | Modified firmware often breaks official update mechanisms. | | Permanent network lock | Incorrect NV values can permanently disable cellular radios. |

Even with the best , things go wrong. Here is how to fix the most common issues.

Used for flashing when the device is in bootloader mode.