you phone detecting wrong Port
Must detect like this see the image
Do the Following Steps
1. SPRD U2S Diag Port ( this Diag port use for Onlt Imei(daig rebuilt))
2. Right click > SPRD U2S Diag Port > Update Driver > select path (AvatorBox-V6.733\Drivers\Mobile Phone Drivers\SPD Android\SciU2S)
3. Choose Your Windows 32bit or 64bit
4. Install Drivers
5. Restart
after restart computer
Do these steps
1. SPD TAB
2. Select Read info or read Flash
3. Seelct Boot nand
4. Select boot 6820 or 8810
5.Select USB
6. uncheck pinfind
7. Press Start
Than Connect usb boot cable to phone And Put Battery within 2 or 3 seconds . software will detects
if you dont have usb boot cable . , Connect normal usb with hold Boot key and insert battery