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Other manuals for this model:
Mobile Phones - S53 (306.19 mb)
Mobile Phones - S53 (394.79 mb)
Mobile Phones - S53 (394.79 mb)
Mobile Phones - S53 (394.79 mb)
manual abstract
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.)
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