Select the .pac file (e.g., SP7731E_1H10_2021_Stock_OS.pac ) and click .
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The term refers to a budget-friendly Unisoc (formerly Spreadtrum) processor. The 1H10 designation typically identifies the hardware revision or board configuration used by manufacturers of aftermarket head units.
Disclaimer: Flashing firmware carries risks. Ensure you have the correct file for your specific 1H10 board variant. sp7731e 1h10 native firmware 2021
If you need help finding the files, tell me the of your device, the exact error code you get during the flash, and your Windows operating system version . I can help you find the correct downloads and guide you through any errors. Share public link
The tool cannot see your device. Make sure you are holding the correct boot key while plugging in the cable. Double-check Windows Device Manager to ensure the device doesn't show a yellow exclamation mark under ports (COM & LPT).
This is a driver issue. Open Windows Device Manager, reconnect the phone while holding the boot key, and check if an unknown device appears with a yellow triangle. Reinstall the SPRD drivers manually. Select the
What caused you to search for this firmware?
The device hangs indefinitely on the startup logo.
Extract the downloaded archive to an accessible folder (e.g., C:\Firmware ). Step 2: Configure the SPD Upgrade Tool Open the ResearchDownload.exe utility as an Administrator. If you need help finding the files, tell
Understanding the naming convention is key:
The PC isn't seeing the phone in download mode. Ensure the device is fully powered off before holding the boot key and plugging it in.