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How to check the reason of switch-on failure of C4000?
a. Dismantle the battery and change same type battery to switch on.
b. Connect the device with standard adaptor to charge the device and try to switch on, or use same type adaptor to charge.
c. Reflash operating system.
d. Contact sale representative or service center to send the device back for R&M.
How to restore factory data of C72?
a. Switch on the device.
b. Click “Setting” to enter “ALL”.
c. Swipe down to select “Backup & reset” and click “Factory data reset” to “RESET PHONE”.
How to restore factory data of C71?
a. Switch on the device.
b. Click “Setting” to enter “ALL”.
c. Swipe down to select “Backup & reset” and click “Factory data reset” to “RESET PHONE”.
How to restore factory data of C70?
a. Switch on the device.
b. Click “Setting” to enter “ALL”.
c. Swipe down to select “Backup & reset” and click “Factory data reset” to “RESET PHONE”.
How to restore factory data of H100?
a. Switch on the device.
b. Click “Setting” to enter “ALL”.
c. Swipe down to select “Backup & reset” and click “Factory data reset” to “RESET PHONE”.
How to make screenshot of C6000?
a. Press and hold power button and number 7 button on the keyboard.
How to restore factory data of C6000?
a. Switch off the device.
b. Press and hold power button and button on the left to restart device.
c. Select “wipe data/factory reset” and press power button to execute.
How to restore factory data of C4050?
a. Switch off the device.
b. Press and hold power button and button on the left to restart the device.
c. Select “wipe data/factory reset” and press power button to execute.
How to execute screenshot of H100?
a. Switch on the device.
b. Swipe down the screen.
c. Click “Screenshot” to capture.
How to execute screenshot of C72?
a. Switch on the device.
b. Swipe down the screen.
c. Click “Screenshot” to capture.
How to execute screenshot of C71?
a. Switch on the device.
b. Swipe down the screen.
c. Click “Screenshot” to capture.
How to execute screenshot of C70?
a. Switch on the device.
b. Swipe down the screen.
c. Click “Screenshot” to capture.