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タブレット Lenovo Tab M8 4th GenのPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Lenovo Tab M8 4th Gen 36 ページ。

Factory reset, update and force shutdown

Factory reset will erase all data from your device's internal storage. Please

back up important data on the device before resetting your device.

1. Go to Settings > System > Reset options > Erase all data (factory reset).

2. Tap Erase all data to reset the manufacturer's default settings.

Your device will prompt you to download and install updates when a new

system version is available. You can also manually check for updates and set

update methods.

1. Go to Settings > System > System Update, and tap Check for updates.

2. Tap

at the top right of the System Update screen to enable or disable

the automatic download and overnight upgrade features as needed.

Download and install system updates from official sources only.

Press and hold the Power and Volume down buttons for about 8 seconds

until the device turns off.