Privacy Locker Protect your important and private photos, videos, files from prying eyes. Media Review "Advanced Mobile Care is a beautifully simple app that quickly scans your Android system for any potentially harmful issues and repairs them in only a few taps.
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Back to Homepage. Subscribe to IObit. United States English. I Accept. Users can continue to use their devices during an OTA—the only downtime during an update is when the device reboots into the updated disk partition. After an update, rebooting takes no longer than a regular reboot.
If an OTA fails to apply for example, because of a bad flash , the user will not be affected. The user will continue to run the old OS, and the client is free to re-attempt the update. If an OTA update is applied but fails to boot, the device will reboot back into the old partition and remains usable. The client is free to re-attempt the update. The cache partition is no longer used to store OTA update packages, so there is no need to ensure that the cache partition is large enough for future updates.
If a device doesn't boot due to a bad OTA or dm-verity issue, the device can reboot into an old image. For OEMs supplying their own client, the client needs to: Decide when to take an update. To avoid disrupting users, it is recommended that updates are scheduled when the device is in idle maintenance mode, such as overnight, and on Wi-Fi. However, your client can use any heuristics you want.
Check in with your OTA package servers and determine whether an update is available. Google's client also includes a Check now button for users to check for the latest update. The bootloader will fallback to the old OS if the new OS fails to boot, so no work is required from the client. If the update fails, the client needs to decide when and whether to try again, based on the detailed error code.
For example, a good client could recognize that a partial "diff" OTA package fails and try a full OTA package instead. Optionally, the client can: Show a notification asking the user to reboot. If you want to implement a policy where the user is encouraged to routinely update, then this notification can be added to your client. If the client does not prompt users, then users will get the update next time they reboot anyway.
Google's client has a per-update configurable delay. Show a notification telling users whether they booted into a new OS version or whether they were expected to do so but fell back to the old OS version.
Google's client typically does neither. Run a post-install program from the new partition after writing all the unused slot partitions, as instructed by the OTA package. For details, see Post-installation. Update engine logs For Android 8. Common example scenarios and their associated states include the following: Normal case : The system is running from its current slot, either slot A or B.
No updates have been applied so far. The system's current slot is bootable, successful, and the active slot. Update in progress : The system is running from slot B, so slot B is the bootable, successful, and active slot. Slot A was marked as unbootable since the contents of slot A are being updated but not yet completed. A reboot in this state should continue booting from slot B. Update applied, reboot pending : The system is running from slot B, slot B is bootable and successful, but slot A was marked as active and therefore is marked as bootable.
Slot A is not yet marked as successful and some number of attempts to boot from slot A should be made by the bootloader. System rebooted into new update : The system is running from slot A for the first time, slot B is still bootable and successful while slot A is only bootable, and still active but not successful.
It's essential that we build these features in a privacy-preserving way, so we built Private Compute Core. It's a first-of-its-kind secure mobile environment that is isolated from the rest of the operating system and your apps. Any information processed in Private Compute Core requires explicit user action before it can be shared with Google or any app or service.
And like the rest of Android, the protections in Private Compute Core are open source and fully inspectable and verifiable by the security community.
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