Bedienungsanleitung TCL 20R 5G - T767 (Seite 31 von 36) (Englisch)

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5 Making the most of your phone

FOTA upgrade

Use the FOTA (Firmware Over The Air) upgrade to update your phone's software.

To access updates, from the app list, touch Settings > System > System Update.

Turn on data connection or Wi-Fi before searching for updates.

With Wi-Fi turned on, the system is able to discover if a new firmware version is

available and if so, begin to download it automatically. Once finished, a pop up

dialog will give you the option of updating your phone now or later.

If Settings > System > System Update > > Update settings > Automatically

download is turned off, a pop up dialog will ask if you want to download a new

firmware version which the phone has discovered, or if you want to ignore it.

If you only have a mobile network connection, you will only receive a notification

which will appear in the Status bar.

During FOTA downloading or updating, to avoid errors in locating the correct

update packages, do not change your default storage location.

6 Troubleshooting

Before contacting the service centre, here are some instructions to help you

troubleshoot your device:

• For optimal operation, fully charge the battery.

• To improve the phone’s performance, remove unnecessary files or apps on your

phone.

• Update your phone's software via Settings > System > System Update.

• Reset your phone via Settings > System > Reset > Factory data reset.

Another method is to hold down the Power key and the Volume up key

at the same time when your phone is powered off. Release the power

key when the device vibrates, then select Wipe data / factory reset >

Factory data reset to reset. All your phone data will be lost permanently. It is

strongly advised to fully back up your phone data before resetting.

and carry out the following checks:

My phone can't be switched on or is frozen

• When the phone can't be switched on, charge for at least 20 minutes to ensure

the minimum battery power needed. Then switch it on again.

• When the phone falls into a loop during power on animation and the user

interface can't be accessed, press and hold the Power key to reset. This

eliminates any abnormal OS booting issues caused by third party applications.

• If neither method is effective, reset the phone by pressing the Power key and

the Volume up key at the same time. Release the power key when the device

vibrates, then select Wipe data / factory reset > Factory data reset to reset.

My phone has not responded for several minutes

• If your phone doesn’t respond, turn off your phone by pressing and holding the

Power key until it turns off and then restart it again.

• If it still doesn't work, reset the phone.

My phone turns off by itself

• Check that your screen is locked when you are not using your phone, and make

sure that the Power key is not accidentally pressed while the screen is unlocked.

• Check the battery charge level.

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