Update Android software
For best performance, keep your phone updated with the latest available Android software.
Check Android version number
To check what version of Android your phone is running:
1. Go to Settings > About phone > Android version.
2. The number displayed is your phone's Android version.
Install Android software updates
Your phone notifies you if an Android software update is available.
To manually check for updates, go to Settings > System > Advanced > System updates.
If an upgrade is available, follow the onscreen instructions to install it.
Tips:
•
To save data charges, use a Wi‑Fi connection to download software updates.
•
For safety reasons, your phone may download security updates (not OS upgrades) automatically over your
mobile network if Wi-Fi is not available within a few days after you receive a notification that a security
update is available. In this case, data charges may apply depending on the carrier.
You can't downgrade to a previous software version after installing an update.
Reset Wi-Fi, cellular data, and Bluetooth
If you're having problems with connections, review this information first:
•
Wi-Fi
•
Bluetooth
•
Cellular data
•
Hotspot (internet sharing)
Then, if you’re still experiencing problems, try resetting all network settings:
1. Go to Settings > System > Advanced > Reset options.
2. Touch Reset Wi-Fi, mobile & Bluetooth > RESET SETTINGS.
3. If you're using dual SIMs, select the SIM to reset for mobile data settings.
4. Touch RESET SETTINGS.
5. Try to reconnect to Wi-Fi, cellular data, and Bluetooth, or try to share your internet connection again.
Fix a problem : Maintenance procedures
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