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8.2.3 Selecting Time Zone
Tap , tap Data & time under the System pane, and then do either of the following:
To manually select the time zone, tap Select time zone.
To allow the radio to use the time zone provided by the network, enable Automatic time zone.
8.3 Factory Reset
Before restoring the factory settings, back up your data to avoid loss of important data.
When the battery level is below 20%, the factory settings cannot be restored.
The Factory Reset feature allows you to restore the radio to factory settings through the Mobile Device
Management (MDM) system. During the process, the radio displays "Factory reset", and all data, including
the system and SD card data, or encryption key is deleted.
If a lock screen password is required, you need to enter the password before restoring the factory settings.
After the factory reset is complete, the radio will restart automatically.
8.4 System Upgrade
Do not upgrade the radio system with unauthorized software to avoid radio failure, loss of
data, or potential security problems.
When the battery level is below 30% or the storage space is insufficient, the radio system
cannot be upgraded.
When a new software version is available, you can upgrade the system. Before upgrading, make sure that the
radio is connected to a WLAN or mobile network. To save data usage, it is recommended to use WLAN to
download the upgrade package. During the upgrade process, the radio terminates the ongoing services. The
upgrade method is configured through the MDM.
After the MDM server sends an upgrade notification to the radio, you can manually upgrade the system.
If you delay upgrading, the notification will appear periodically.
The MDM server automatically upgrades the radio system.
Tap , tap System upgrade under the System pane, and then tap Upgrade.
After the upgrade is complete, the radio will automatically restart and prompt a notification indicating the
successful upgrade.
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