If you’ve landed here, you likely own a (a popular 4G feature phone running KaiOS) and are staring at the dreaded "Invalid IMEI" or "Null IMEI" error after a failed flash, firmware corruption, or software glitch.

Change a blacklisted IMEI, clone another phone’s IMEI, or repair an IMEI on a lost/stolen phone. Violations can lead to fines or jail time.

This article is for educational purposes. The author and site are not responsible for any damage to your device or legal consequences from improper IMEI modification.