: Select the correct COM port identified in your PC's Device Manager (often labeled as "SPRD U2S Diag").
Keep your phone's battery charged to at least 50%.
The status indicator on the dashboard will turn yellow or blue, signaling an ongoing data write to the NVRAM partition. Release the physical boot key on the device. sc7715 imei tool latest version 2021 top
Ensure you have the correct SPD USB Drivers installed on your PC.
Ensure that the proper boot key combination was held firmly during cable insertion. If the device attempts to charge its battery instead of entering download mode, the USB data pins or the physical cable may be faulty. : Select the correct COM port identified in
SC7715 IMEI Tool Latest Version 2021 Top: A Comprehensive Guide to IMEI Repair
Supports writing IMEI 1, IMEI 2, Bluetooth addresses, Wi-Fi addresses, and serial numbers. Release the physical boot key on the device
For SC7715 specifically, the outperforms Maui Meta—which often fails to sync with newer SC7715 firmware.
"Unlike the 2019 version, this one auto-detects COM ports even on Windows 10 20H2. Highly recommended." –