Maintenance mode
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At HUAWEI, privacy and data protection is our top priority. We are dedicated to acting on this principle, which is why we have developed the Maintenance mode – a tool that prevents any unauthorised access to personal data on your phone or tablet device.
Read in this article the basics of this functions and learn how and when to use it.
What exactly is the Maintenance mode?
The Maintenance mode is a tool used when sending a device for repair that can temporarily lock private data into a safe storage area. No one will have access to personal information on the device until the Maintenance mode is closed.
Q1 What are the benefits of using the Maintenance mode?
It securely locks data: the Maintenance mode encrypts all aspects of private data with security algorithms.
When this mode is enabled, only preinstalled apps are displayed and all user installed apps, such as banking and social media apps, will be hidden.
Disabled
VS
Enabled 
Additionally, your personal data, including photos, emails, notes, contacts, messages, login data and payment information on your device will all be hidden.
Example 1: Photos are hidden
Disabled
Enabled
Example 2: Notes are hidden
Disabled
Enabled
Example 3: Email accounts are hidden
Disabled
Enabled
Example 4: Contacts are hidden
Disabled
Enabled
Instant recovery: Turn off the Maintenance mode and input the lock screen password to have all your data back.
Q2 How does it work?
It is important that you back up your data and ensure you have upgraded the 
Support App to the latest version before activating the Maintenance mode.
Enable the Maintenance mode:
Step 1. Open Support App, go to QUICK SERVICES> MORE and tap Maintenance mode
Step 2. Tap ENABLE and press RESTART
Step 3. Your phone will automatically go into this mode after restarting
Disable the Maintenance mode:
Step 1. Swipe down the notification bar and tap the Maintenance mode’s notification
Step 2. Touch CLOSE
Step 3. Insert your lock screen password to return to normal mode
What devices are eligible for this function?
This function is available on all HUAWEI phones and tablets installed with EMUI 8.0 and above. Please be aware that your phone’s internal storage must be more than 2GB to use this mode.
The Maintenance mode will not be valid for devices that won’t turn on or have touchscreen or NFC problems. For these type of issues, please contact HUAWEI Customer Services or visit our HUAWEI Customer Service Centre for further assistance.
FAQ:
Q：Do I need to back up my data before or after the Maintenance mode is on?
A：It is recommended that you back up information before you get services for your device. This mode can avoid data leakage, but it cannot prevent unpredictable data loss.
Q: When I activate this mode, do I need to wipe out all of my data?
A: There is no need to wipe out any data. The Maintenance mode will encrypt all of your data, which will be recovered once the mode is deactivated.
*Reminder: The examples above are for reference only. Please refer to the actual situation.