Doel-Primary-2102-Hang-on-logo-Problem solve 1000% Tested ok

1 —You download Doel Primary-2102 Firmware
2 —You Put whole Firmware in SD card directly. (Off course Fat 32bit Formatted SD card) 
3 – You Put in Laptop SD Card Slot and restart Laptop and automatically upgrade it. 
      you wait for 100% .
4 —Remove your SD card and automatically restart then 100% OK solved your problem.


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