Troubleshoot a or "Timeout" error during the process.
It includes options for writing multiple IMEI numbers for dual-SIM devices. imei sn writer v1.5.3 download
Connect the device to the PC via USB (without holding any buttons, or sometimes with Volume Up). Troubleshoot a or "Timeout" error during the process
v1.5.3 allows writing without an authentication dongle. Newer versions (v2.x) require an official MediaTek dongle or signed auth file. This results in the phone failing to register
When an Android device undergoes a firmware flash or suffers a system crash, critical calibration data—including the IMEI—can be lost. This results in the phone failing to register on a cellular network (displaying "No Service" or "Invalid IMEI"). IMEI SN Writer is the go-to solution to rectify this issue without requiring a premium service box.
: Install VCOM drivers and extract the SN Writer tool. Configuration : Set ComPort to USB VCOM . Select Target Type (e.g., Smart Phone or Feature Phone).