If IMEI.info shows the device is clean but your phone reads "Invalid IMEI," proceed to the hardware and software fixes below. Step 2: Basic Troubleshooting (HardReset.info Methods)

Use IMEI.info to verify if your device's IMEI is in the manufacturer database.

Under normal conditions, a (from the settings menu) or a hard reset (via Recovery Mode) should not erase your IMEI. However, the IMEI is stored in a protected area called the EFS partition . If this partition becomes corrupted during a reset, root attempt, or custom ROM installation, your device can no longer "see" its unique identity. 2. Step 1: Diagnose with IMEI.info

: If the screen is locked or the device is reset, find the 15-digit number by: Dialling *#06# on the keypad.

HardReset.info provides button combinations (such as Volume Up + Power) to wipe devices. Sometimes, executing a hard reset causes the phone to get stuck continuously restarting on the brand logo screen. Why It Happens

Always ensure you have the right to modify the device. Hard resetting a device that has Factory Reset Protection (FRP) enabled will require the previous Google account credentials to set up again. Do not factory reset a phone if you do not know the Google login details.

A simple reboot can sometimes re-establish the connection to the cellular radio. Update Firmware:

This is a software software corruption issue. It usually happens after a failed operating system update, an interrupted firmware flash, or an improper root attempt. The physical device is fine, but the software partition holding the IMEI (the NVRAM or EFS folder) is corrupted or erased. Scenario B: The Blacklisted IMEI