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Step 2) Firmware upgrading procedure :
1/ PRESS and HOLD the or Volume – button of 8
”
tablet Pro 3
2/ Connect the tablet with your PC via USB cable. At the same time, please press
and release the Power button several times continuously.
3/ A screen will show as below and release all buttons :
4/ After click Yes, another screen is showing below and please click “Yes” :
5/ Upgrading will be starting !!!
6/ Please DO NOT power off the device until upgrading process finished.