This is the most reliable method but involves the most risk. You aren't just "masking" the IMEI; you are modifying the which contains your device's unique radio data.
Changing a device's International Mobile Equipment Identity (IMEI) via Magisk is a common but complex topic. While Magisk can be used to change imei with magisk exclusive
: Similar to Android Faker, this module can intercept system calls from apps requesting your IMEI and return a custom value instead. 2. Permanent IMEI Rewriting (Chipset Specific) This is the most reliable method but involves the most risk
[GUIDE] How to change IMEI on Snapdragon devices - GitHub Gist change imei with magisk exclusive