Perform a full hard factory reset through the phone settings menu using master reset code 1234 or 0000 .
: Changing or repairing an IMEI is restricted or illegal in many regions. Ensure you are using the original IMEI found on the device's box or under the battery for legitimate restoration purposes. PC drivers
Input the original IMEI number found on the back of your phone (under the battery). Select or Apply and restart the phone. 2. Alternative RDA Codes coolsand rda imei repair code best
Professional technicians handling multiple feature phones.
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Coolsand RDA (Radio Device Agent) is a popular tool used for repairing and unlocking mobile devices. It is widely used by mobile repair technicians and enthusiasts to fix various issues, including IMEI problems. Coolsand RDA supports a wide range of devices, including those from popular manufacturers like Samsung, Huawei, and Xiaomi.
— Direct access to the IMEI edit screen on many RDA devices. PC drivers Input the original IMEI number found
or a specific center button) while plugging in the USB cable to enter Download Mode
: A professional-grade service tool that supports IMEI repair and "Patch Certificate" procedures for various chipsets.