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Step1. Place update zip file in micro SD card.
Step2. Insert micro SD card in SD card slot.
Step3. Make sure your device is power off.
Step4. Enter Boot Menu:
Sequential button command:
1.
User shall press both volume up and power key to power on device, device
vibrates once.
2.
Release power key and hold volume up over 3 seconds, device vibrates once.
3.
Release all key and press volume down and hold volume down on over 3 seconds,
device vibrates once.
4.
Release all key to launch boot menu. (As following figure.)
Chapter 5
8
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