Restore original IMEI numbers after a software crash.
While no singular "official" manufacturer website hosts the tool for public use (as it is intended for service centers), it is available on reputable community platforms:
The Transsion After Sales Tool V1.5.1 is a useful software for technicians and users who want to troubleshoot and repair Transsion devices. By following this guide, you should be able to download, install, and use the tool effectively. However, be cautious when using the tool, as improper use can brick your device or cause other issues. If you're unsure about any step, it's recommended to seek professional help.
: It includes a built-in firmware integrity check, though this can be manually disabled for custom firmware by editing the common setting configuration file. How to Use Preparation : Install necessary MediaTek USB Vcom drivers Load Firmware