Below is a comprehensive list of Research / Upgrade Download tool errors, what they mean and how to fix them. We'll keep building this list to ensure it captures all errors and proffers effective solutions. Ensure to see the tutorial on how to use Research Download tool / Upgrade Download tool to be sure you're doing it right else you'll keep running into error after error. Research Download tool & Upgrade Download tool are Windows desktop applications for flashing firmware / pac files to Spreadtrum (SPD) Android devices.
List of Research Download tool / Upgrade Download tool errors and their solutions
Phone is totally dead
Message: The phone doesnt respond to power button or only vibrates after pressing the power button but doesnt come on
Meaning: The OS is either corrupted or there's no power to boot the phone
Solution:
Ensure the battery is well charged
Re-flash the pac file
Research / Upgrade download tool does not show waiting.... instead, the phone just charges
Message: After you click Start and connect the phone to the PC, the tool doesn't show waiting. Instead, the phone begins charging or shows a charging sign. You could sometimes get the USB connection-disconnection sound on the PC
Meaning: The Spreadtrum drivers have not been properly associated with the device
Solution:
Launch Device manager (Right-click My Computer > Select Manage)
Connect the phone to the PC via a USB cord, Device manager should refresh
Take note of what the phone is detected as (often as Unknown or Spreadtrum under Other devices)
Right-click whatever the phone is detect as and select Update Driver Software...
Select Browse my computer for driver software
Select Let me pick from a list of device drivers on my computer
Meaning: The tool encountered an error while communicating with the phone
Solution:
Disconnect the phone from the PC, take out the battery and slot back in then ensure to hold the Volume down button when connecting to the PC for flashing
Try a different cord, port and PC
_REPARTITION_ error
Message: Failed: Operation failed
Meaning: The tool encountered a partition table error while trying to flash the device