The SN Write Tool is a specialized Windows-based application designed to write or restore important identification data to a device's NVRAM . This is often necessary when a phone displays a "Null IMEI" or "Invalid IMEI" error after a firmware flash or hardware repair, which prevents the device from connecting to cellular networks.
: Download the tgt mtk sn 20rar file and extract it. Ensure you have the correct MTK USB VCOM drivers installed on your PC. tgt mtk sn 20rar indir
It is important to note that changing an IMEI number to a value other than the one originally assigned by the manufacturer is illegal in many jurisdictions. This tool should only be used for and restoring original identifiers. The SN Write Tool is a specialized Windows-based
: Load the required MD1_DB and AP_DB files from the stock ROM of your specific phone model. Ensure you have the correct MTK USB VCOM
: A "PASS" message in green indicates success. Restart the phone and dial *#06# to verify the new IMEI. Safety and Legality
: To function correctly, the tool requires specific database files from the device’s original firmware, namely the BPLGUInfoCustomAppSrcP (Modem database) and APDB (Application Processor database).