RecoverySystem public class RecoverySystem extends ↳ android.os.RecoverySystem RecoverySystem contains methods for interacting with the Android recovery system (the separate partition that can be used to install system updates, wipe user data, etc.) Instances of this class must be obtained using with the argument RecoverySystem.class. Summary Nested classes interface Interface definition for a callback to be invoked regularly as verification proceeds. Public methods static void ( context, packageFile) Reboots the device in order to install the given update package.
Static void ( context) Reboot into the recovery system to wipe the /cache partition. Static void ( context) Reboots the device and wipes the user data and cache partitions. Static void ( packageFile, listener, deviceCertsZipFile) Verify the cryptographic signature of a system update package before installing it. Inherited methods From class. Creates and returns a copy of this object. Boolean ( obj) Indicates whether some other object is 'equal to' this one.
Void Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. Final Returns the runtime class of this Object. Int Returns a hash code value for the object. Final void Wakes up a single thread that is waiting on this object's monitor. Final void Wakes up all threads that are waiting on this object's monitor. Returns a string representation of the object. Final void (long millis, int nanos) Causes the current thread to wait until another thread invokes the method or the method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
Final void (long millis) Causes the current thread to wait until either another thread invokes the method or the method for this object, or a specified amount of time has elapsed. Final void Causes the current thread to wait until another thread invokes the method or the method for this object. Public methods.
Added in void installPackage ( context, packageFile) Reboots the device in order to install the given update package. Requires the permission. Requires the permission.
Parameters context Context: the Context to use packageFile File: the update package to install. Must be on a partition mountable by recovery. (The set of partitions known to recovery may vary from device to device. Generally, /cache and /data are safe.) Throws if writing the recovery command file fails, or if the reboot itself fails. Added in void verifyPackage ( packageFile, listener, deviceCertsZipFile) Verify the cryptographic signature of a system update package before installing it. Note that the package is also verified separately by the installer once the device is rebooted into the recovery system. This function will return only if the package was successfully verified; otherwise it will throw an exception.
Verification of a package can take significant time, so this function should not be called from a UI thread. Interrupting the thread while this function is in progress will result in a SecurityException being thrown (and the thread's interrupt flag will be cleared). Parameters packageFile File: the package to be verified listener RecoverySystem.ProgressListener: an object to receive periodic progress updates as verification proceeds. Canon printer drivers windows 10. DeviceCertsZipFile File: the zip file of certificates whose public keys we will accept.
Verification succeeds if the package is signed by the private key corresponding to any public key in this file. May be null to use the system default file (currently '/system/etc/security/otacerts.zip'). Throws if there were any errors reading the package or certs files. If verification failed.
If your Android phone or tablet isn’t acting right, or you’re trying to tackle malware, you should try entering recovery mode. When your phone is not responding, or you’re having trouble doing things using your device’s normal software settings, recovery mode can likely help alleviate the device. Recovery is an independent, lightweight runtime environment that’s included on a separate partition from the main Android operating system on all Android devices.
Android System Recovery Utility
You can boot directly into recovery mode and use it to factory reset your device, delete the cache partition, or apply software updates. You can enter recovery mode via your device’s hardware keys, so it’s often a last resort for people troubleshooting a device, especially if the screen is unresponsive. Not every device uses the same method — we’ll run through a couple of popular models — but you can generally find this information for every device via your respective manufacturer or carrier website. How to boot into recovery mode on a Google Pixel or Nexus device If you have a device like the, or that runs stock Android, then these are the steps required to boot into Recovery mode:. Hold down the Power key and select Power off. If the touchscreen is unresponsive, then you can simply keep holding down the Power key for several seconds until the device turns off. Press and hold the Power key and the Volume down key.
You should see the Android mascot on his back, a bunch of information about your device, and Start at the top of the screen. To navigate through the menu options, you use the Volume up and Volume down keys. The Power key is used to make a selection. Press Volume down twice, and you should see Recovery mode in red up at the top right. Press the Power key to select it. The white Google logo will pop up followed by the Android mascot on his back again with the words No command underneath.
Press and hold the Power key and the Volume up key for around three seconds, and then let go of the Volume up key, but keep pressing Power. You should see the Android system recovery options pop up at the top of the screen. Use the Volume keys to highlight the options and the Power key to select the one you want. How to boot into recovery mode on other Android devices We aren’t going to go through every device here, but you can find this information for your phone with a quick Google search. Make sure you find the right method for your device from a trustworthy source before you start. The method to factory reset a device using the hardware keys always includes instructions on how to get into recovery mode.
Samsung Galaxy S7, S7 Edge, S6, S5, S6 Edge, Note 5, Note Edge (and other Galaxy devices). Hold down the Power key and select the Power off option. If the screen is frozen or unresponsive, you can hold down the Power key for several seconds until the device switches off, or pull the battery where possible. Press and hold the Power key, the Volume up key, and the Home button together. Release when you see the Samsung logo.
You can select the option you want from the menu using the Volume keys to highlight and the Power key to select. HTC 10, One M9, M8 HTC phones are a little different:. Go to Settings Battery and uncheck Fastboot. Turn the device off by holding the Power key.
Android System Recovery
Press and hold the Volume down key and the Power key. You should see a bootloader screen where you can use Volume down to highlight RECOVERY and then the Power key to select it. LG G6, G5, G4, G3, V10, V20. Press and hold the Power key, and turn the off. Press and hold the Power key, and the Volume down key together. When you see the LG logo let go of the Power key and then press it again (you should keep pressing the Volume down key throughout).
The menu will appear and you can use the Volume keys to highlight an option and the Power key to select it. Motorola Droid Turbo 2, Moto Z, Moto G (any generation), Moto X Style.
Hold down the Power button and turn your phone off. Press and hold the Volume down and Power buttons simultaneously until the device turns on. You can use Volume down to highlight Recovery mode and the Power button to select it.
OnePlus 3, 3T, 2, OnePlus X. Hold down the Power button and select Power off to turn your OnePlus off. Press and hold the Power and Volume down buttons together. You can use the Volume buttons to highlight an option and the Power key to select it. Recovery mode options The options you are presented with may vary depending on your device, but there are certain standards that are always there. You can always choose from:.
Reboot system now: This will restart the device normally. Apply update from ADB: The Android Debug Bridge allows you to plug your device into your PC and issue commands from there. It’s designed for developers and requires you to install the Android SDK (software development kit). If you’re interested you can find out more at the. Wipe data/factory reset: This will wipe all of your data — photos, videos, music, apps, everything — and return your phone to its original factory condition. This will also wipe the cache partition.
Wipe cache partition: This is temporary system data largely related to app installations, and you can delete it without losing any personal data or settings. Wiping the cache partition can solve a host of issues and you won’t lose any data or settings, so there’s no real risk involved. We recommend this as a fix for a lot of common Android problems. A word of warning about Factory Reset Protection Every device running Android 5.0 Lollipop or later has Factory Reset Protection (FRP) turned on by default. What this means is that you’ll be prompted to enter the user name and password for your Google account, even after performing a factory reset. The idea behind this measure is to deter thieves, since even a factory reset via the recovery menu won’t give them access to your phone. However, it’s worth keeping in mind if you plan on wiping your phone prior to selling it or passing it on to someone else.
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To avoid FRP, make sure that you go to Settings Accounts and remove your Google account before performing a factory reset. Custom Android recoveries The open-source community has also produced a number of custom Android recoveries that offer additional features such as backup and restore, the ability to apply updates that haven’t been approved by the manufacturer or carrier, the ability to selectively delete data, and some other bits and pieces of extra functionality.
Two very popular options are (CWM) and (TWRP). If you want go down this route, then check out our overview of first. If you run into any problems with recovery mode, or you want to know more, we recommend you check out the. This article was originally published August 4, 2014, and updated on March 17 by Simon Hill to include new models and advice on wiping the cache partition.
What is Android System Recovery? Despite all the worry that surrounds an unwanted Android system recovery screen, it is actually a feature that can be quite helpful to your Android device when it’s needed. It can be useful when you want to hard reset the Android device without having to access the settings. This can be very useful if your device is not working very well or if your touch screen is experiencing problems. It can also be very helpful when you are having problem accessing the settings on your device. For these reasons it is actually a good thing although when it does happen unexpectedly, you may want to know how to fix it.
How to get to Android System recovery Now that you know how useful the Android System can be, you may want to know how to utilize this feature to get out of some of the problems we mentioned above. Here’s how you can safely get to Android recovery system on your Android device. Step 1: Hold down the power key and then select “Power Off” from the options on the screen.
If however your screen is unresponsive, keep holding the power key for several seconds until the device is completely turned off. Step 2: next, you need to hold down the Power and the Volume Key. You should able to see the Android image and a bunch of information about your device. There should also be a “Start” at the top right corner of the screen. Step 3: Press the Volume up and Volume down keys and use the Power key to select menu options. Press the Volume down Key twice to see “Recovery Mode” in red at the top of the screen. Press the power key to select it.
Step 4: The white Google logo will appear immediately followed by the Android logo again as well as the words “No Command” at the bottom of the screen. Step 5: finally, Press and hold both the Power and the Volume up Key for around 3 seconds and then let go of the Volume up Key but keep holding the Power Key. You should see the Android system recovery options at the top of the screen. Use the Volume keys to highlight and the power key to select the one you want. Android Stuck at System Recovery? How to fix it If however your device is stuck on system recovery mode, here’s how you can easily get it out of system recovery.
The process is slightly different for different Android devices so you should check your device’s manual before attempting this process. Step 1: Power off the device and just to be sure, take out the battery to ensure that the device is fully turned off. Then reinsert the battery Step 2: Press and hold down the Home button, Power Button and the Volume up Key simultaneously until the device vibrates. Step 3: Once you feel the vibration, release the power button but continue to hold down the Hone and Volume up Key. The Android recovery screen will display. Release the Volume up and Home buttons.
Step 4: press the Volume down key to select the “Wipe Data/ Factory Reset option and then Press the Power button to select it. Step 5: Next, you need to press the Volume down button to highlight “Delete All User data” and then press the Power button to select it. The device will reset and present the “Reboot System Now” option. Step 6: Finally Press the Power button to in normal mode.
Android Stuck at System Recovery? How to fix it Losing data on your Android device is a common occurrence and since Android devices don’t really have an automatic full backup solution, it is important to know how to backup and restore your device system. Here’s how to easily do that. Step 1: Enter recovery mode on your Android device as described in Part 2 above. Use the Volume and Power keys to select “Backup & Restore” option on the screen. Step 2: Tap on the backup option or use the Volume and Power keys if your screen is unresponsive.
This will begin backing up your system to the SD card. Step 3: after the process is complete, choose 'Peboot Reboot' to restart the device. Step 4: You can then simply check Recovery backup directory on your SD card.
You can rename it to easily find it later during the restore process To restore the system from the backup created, follow these simple steps. Step 1: Once again enter recovery mode as described in part 2 above and then choose Backup & Restore from the menu list. Step 2: Press “Restore” to begin the recovery process from the Backup file we created Step 3: You will be notified when the system restore is complete.
Android system recovery mode can be quite useful especially when your system is unresponsive. As we have also seen it is important to know how to get into and out of System Recovery mode if you are going to backup and restore your Android system. It is also quite easy to do both of these things.
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