Fix Error code Upgrade download tool

Howto fix problem will be flashing using upgrade download tool or research download. Speadtrum software problem solved
   • Fix Error code Upgrade download tool  

download for flashing Speadtrum (SPD) Device
spd flash tool

Software Pamungkas mahesa factory download tool
https://za.gl/fatorydownTOOL

Fix:
NV_W = Write failed to flash
checkBaud = failed uart send error
FDL 2 = failed incompatible partition
NV_WCN = write flash failed

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