Xiaomi smartphones provide an easy method for checking the proper working of its hardware for notifying the apps causing a problem for the smooth functioning of the smartphone. By using this feature, one can easily perform a hardware test on Xiaomi device by either a complete hardware test or single tests.

Step 1: Open your Dialpad.
Step 2: Type the code *#*#6484#*#*
Step 3: After entering the last digit Engineering mode will open automatically

Test items
1. Check version info
2. SIM card
3. Keyboard test
4. Vibrator Test
5. Notification light(LED)
6. Touch sensor
7. Display
8. Receiver
9. Speaker
10. Main MIC

11. Top MIC
12. Headset test
13. FM Radio
14. Proximity sensor
15. Wi-Fi AP Scan
16. Wi-Fi Address
17. Bluetooth scan
18. Get Bluetooth address
19. Accelerometer
20. Gyroscope

21. Magnetic sensor
22. Light sensor
23. OTG
24. Charger Test
25. Rear camera
26. Front camera
27. Ultra camera
28. Macro camera
29. Depth camera
30. Bokeh camera

31. NFC test
32. GPS
33. Battery indicator
34. Sar Sensor Data Collect
35. Fingerprint sensor check
36. Fod fingerprint input test

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