![]() Stephen is a freelance writer at Android Police who primarily covers how-to guides, features, and the occasional in-depth explainer across various topics. As a bonus, it may fix problems you have with your installed apps. Optimizing your apps using this method can return them to peak performance. Doing so is helpful if your apps slow down or give you other issues. It allows you to reoptimize your apps like it does after installing a system update. You'll find this on many Samsung devices. You likely won't use this option much on your primary device, but it's there if you need it. If you don't plan to use the device after this, the option puts it into its powered-off state. It allows you to see different languages displayed with various default messages. This is an extension to the Run graphics test option. Run locale testĪnother simple recovery mode test that shows extra on-screen languages your device can display. It might look like it's wiping your device data or installing an update, but it's not doing that. It runs through some recovery mode-related visual tests, which take a few seconds to complete. This option takes your device through a quick test to ensure your on-device graphics and display function as they should. This is useful if you need to remember what you did earlier. ![]() You can view a temporary log with a timestamp on what actions were carried out during that recovery session. This one is useful if you spend more than a few minutes using the recovery mode feature. Without doing anything after this, your system files aren't altered unless you change them. It mounts the /system partition of your device. Only use this option if you know what you're doing. This allows you to mount your device system file to view them and make any necessary changes. Using the option wipes the cache partition on your device and allows you to start fresh, which can fix app issues you had at the same time. This is especially true the longer you use it without clearing the cache. Your system cache or temporary app files can bog down your device when a lot of apps are installed. You might see this on some devices, such as Samsung Galaxy phones, allowing you to wipe your system cache in one go. You always have the option to factory reset if something like this happens to your device. The Android system files can get corrupted during the system update process or other instances. In that case, a factory reset could bring it back to life. Suppose your device doesn't boot into Android, but you can access the recovery menu. This is one of the most used options since it allows you to initiate a full factory reset on your device like it would when you access the feature from the Settings app. If you're uncomfortable using ADB commands and your device manufacturer allows you to download system update files, this is a great way to update your device manually. ![]() Similar to the Apply update from ADB option, this lets you install updates from your on-device storage. If you know how to use ADB commands, sideloading an OTA or system update using this method is fast and straightforward. This is helpful if your device manufacturer lets you download firmware updates from them, letting you manually install updates and bypass the built-in system process. When you select this option, you can reboot your device like usual, return to the recovery screen, reboot to the bootloader, or power off again. You likely won't use this one much since you see this screen automatically when installing system image files via the main bootloader menu, for example. This allows you to open the special fastbootd menu, which helps you install custom firmware or custom ROMs without a custom recovery. If you plan to use more advanced features after this, such as unlocking the bootloader or using Fastboot commands, rebooting into the bootloader is where you want to go. You may have been in the bootloader the first time around when you selected the Recovery Mode option. When you use this option, your device reboots like usual, and you'll be at your lock screen in no time. You'll use this if you don't want to be in the recovery menu or are finished and ready to boot into Android. In the sections below, we briefly cover what each feature does so that you know what to expect. At the same time, you may have access to extra features on specific devices, such as the Repair apps option, if you use a Samsung Galaxy phone. Many Android recovery mode features are standard, so you'll see them regardless of your manufacturer. Now that you know how to access the Android recovery mode screen, it's time to learn what it has to offer.
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