You may need to flash a complete stock firmware ( .pac file) using the SPD Upgrade Tool first to restore the partition structure before running the IMEI tool. 3. "Invalid IMEI" on Device After Reboot
In the main window, manually type the 15-digit original IMEI number(s) belonging to the device into the corresponding input fields. Double-check the digits to prevent typos. Step 5: Connect the Device and Flash
Hold the or Volume Up key (the boot key varies by device manufacturer). sc7715 imei tool download upd
Remember: Always download from trusted sources like XDA or GitHub, install the correct drivers, and never write someone else’s IMEI onto your device. If you follow this guide step by step, you will resolve the "Null IMEI" issue within minutes.
: A common standalone utility specifically for Spreadtrum devices. It allows users to input the first 14 digits of the IMEI; the tool often automatically calculates the 15th checksum digit. You may need to flash a complete stock firmware (
An for SC7715 allows users to:
: Open the writing utility and select the "SC7715" chipset or the corresponding "Manual" mode. Double-check the digits to prevent typos
Match the COM port number identified in Device Manager inside the tool's dropdown menu if it does not auto-detect. The tool will flash a progress bar across the screen. Once complete, a green message will confirm that the strings have been permanently flashed back onto the phone's system partition. Disconnect the USB cable, pull the battery to power cycle, boot up the device, and dial *#06# on the dialer application to confirm restoration. Troubleshooting Common Connection Errors Error Encountered Root Cause Actionable Solution Baudrate / COM Port Timeout The software timed out waiting for the device response.
: Open the IMEI tool and follow the on-screen instructions. The process can vary significantly depending on the tool you're using, but generally, you'll need to select your device model, enter the new IMEI you wish to set, and then click a button to write the IMEI to your device.
While holding Volume Down, connect the phone to the PC via the USB cable.