What is the memory of Xiaomi 4 mobile phone? Xiaomi 4 mobile phone instructions

Instructions:
* #4636 #*#*
Displays mobile phone information, battery information, Battery Records, usage statistics, and Wi-Fi information
* #7780 #*#*
Resetting to the original factory will not delete the preset program and SD card files.
* 2767*3855 #
Resetting to the original factory will delete all SD card files.
* #34971539 #*#*
Display the camera firmware version or update the camera firmware.
* #7594 # * 6
When you press the power-off button for a long time, a window will appear to switch the mobile phone mode, including: Quiet mode, air-conditioning mode, and shutdown. You can use the above code to directly turn it into a power-off button.
* #273283*255*663282 *#*#*
Open a place where you can back up media files, such as photos, sounds, and movies.
* #197328640 #*#*
Start the service mode and test the settings and change the settings of the mobile phone.
Code for testing WLAN, GPS, and Bluetooth
* #232339 # * or * #526 # * or * #528 # *-WLAN test
* #232338 # *-display the WiFiMAC address
* #1472365 # *-GPS test
* #1575 # *-other GPS tests
* #232331 # *-Bluetooth testing
* #232337 # * #-display the Bluetooth device address
* #8255 # *-start GTalk service monitor to display the code of the mobile software version
* #4986*2650468 # *-PDA, Phone, H/W, and RFCallDate
* #1234 # *-PDA and Phone
* #1111 # *-FTASW version
* #2222 # *-FTAHW version
* #44336 # *-hardware testing for PDA, Phone, csc, buildTime, anzhi. name, and changelistnumber
* #0283 # *-PacketLoopback
* #0 * # *-LCD testing
* #0673 # * or * #0289 # *-Melody test
* #0842 # *-device testing, such as vibration and brightness
* #2663 # *-touch screen version
* #2664 # *-touch screen testing
* #0588 # *-close sensor test
* #3264 # *-memory version