How does an Android mobile phone operate the recovery mode? How to enter the recovery mode

What is the recovery mode?

The recovery is a flashing engineering interface. We need to enter the recovery when upgrading the ROM, or the recovery mode of the mobile phone, which is equivalent to the one-click recovery of the computer, only Recovery is the various Rom and patches of mobile phones. If you have installed the system, you may know the dos interface or winPE. Installing Recovery is equivalent to installing a dos interface for the system. On the recovery interface, you can choose to install the system, clear data, ghost backup system, and recover the system.

How to enter the recovery mode

 

 

 

 

When the camera is turned off, press the camera key and press the on key to start the camera. Do not release the camera key during this period (the bootloader version with some oil is 90.78. Change the camera key to the letter X to enter ). Wait until the following figure is displayed.

 

 

 

 

Press volume + and then press the camera key to enter recovery (as shown in the figure)

Restore factory settings in recovery mode (Lenovo mobile phone is used as an example)

1. Press the power key, volume +, and volume-keys of the phone at the same time when the phone is shut down, as shown in the figure below:

2. When the screen is on, release the button and wait until the following figure is displayed. If the screen is not displayed, repeat step 1;

After entering the recovery mode, if you want to restore the system or clear the lock screen password, back up your personal data on your mobile phone in advance.

1. Select "wipe data/factory reset" by using the volume plus or minus key, and press the power button to confirm;

2. Use the volume plus or minus key to select "Yes" and press the power button to confirm;

3. Select "wipe cache partition" by using the volume plus or minus key, and press the power button to confirm;

4. Wait for the phone to restart. Your mobile phone will return to the factory status.

Flash in recovery mode

1. Shutdown

2. Press "dial key + shut down key + volume-" to go to the recovery mode interface. Select

-> Flash ZIP menu [ZIP Flash] (what? Not used? Remember, the two keys for adjusting the volume are adjustment up and down, the menu key is selection, and the return key is return)

-> Choose zip from sdcard [select "refresh"] find your refresh quota.

-> Press menu to confirm, any other key to abort. [system prompt] (select the menu key to continue, other keys to terminate)

Loading... now the flash is starting. Please wait for the progress bar to complete.

If Completed is displayed, the image is successfully flushed.

English description of the recovery Template

Corresponding descriptions in recovery

1. Reboot system now -- restart

2. USB-MS toggle-connect USB directly in recovery mode without exiting this mode

3. Backup/Restore-Backup and Restore

3-1. Nand backup-Nand backup

3-2. Nand + ext backup-Nand backup (the system is backed up together with the ext partition)

3-3. Nand restore-restore (that is, restore the last backup of 3-1 and 3-2)

3-4. BART backup-BART backup (including system and ext partition)

3-5. BART restore-restore the last BART backup

Nand backup is similar to system backup, while BART is like a ghost backup on a PC.

Nand backup does not back up ext partitions (that is, if the second partition has no partitions, you can ignore this)

So if your app2sd program is installed in the second partition, you cannot use Nand to restore it.

Bar t can be backed up to the ext partition and restored with the BART. The whole system can be restored so that it is exactly the same as before the backup,

There will be no loss of file information (including contacts, text messages, images, audio and video), so if you have installed a lot of things, backup and recovery will be slow)

4. Flash zip from sdcard--from the. zip ROM in the SDK root directory

5. Wipe -- clear

5-1. Wipe data/factory reset -- clear memory data and cache data (this item is recommended before Flash)

5-2. Wipe Dalvik-cache -- clear cache data + data in ext partition (This item is recommended before Flash)

5-3. Wipe SD: ext partition -- only data in the ext partition is cleared (This item is recommended to be cleared before Flash)

5-4. Wipe battery stats -- clear battery data (this item is recommended before flashing)

5-5. Wipe rotate settings -- clear the data set in the sensor (This item is recommended before flashing)

6. Partition sdcard-Partition sd card

6-1. Partition SD -- automatically partitions the sd card

6-2. Repair SD: ext -- fix ext partitions

6-3. SD: ext2 to ext3 -- convert ext2 to ext3 (recommended)

6-4, SD: ext3 to ext4 -- convert ext3 partition to ext4 partition (not recommended for C4 card, recommended for C6 card)

7. Other -- others

7-1. Fix apk uid mismatches -- Fix the apk program

7-2. Move apps + dalv to SD -- Move programs and virtual caches to the sd card (this is not app2sd)

7-3. Move recovery. log to SD-Move the fl log file to the sd card

(After this operation is performed, a "recovery. log" file will appear in the root directory of the sd card, that is, the fl log file)

8. Power off-shutdown