Xiaomi TV4 : Hanged up at the First Wall Paper Screen

8 February 2018

Introduction

Xiaomi TV4 restarted suddenly when browsing using Google Chrome or when trying to play certain foreign movies.   Sometimes,  the TV can restart itself  smoothly but sometimes,   the TV might just stuck at the first Wall paper Screen,  refusing to move further.  This article propose a method where one can resolve this  problem.

Why Xiaomi TV Restarted?

There is no explanation or warning.   But many observations suggest that Xiaomi TV does not like the default video players specified by the foreign movies.  May be such action triggered certain hardware interrupts that cause the TV to restart or hang up. The other possibility is that we have downloaded/uploaded too many apps and some of these apps are not friendly to Xiaomi TV's OS.

What to do Next?

When the TV has a hangup,  it will not respond the the remote controller nor the white start/stop button underneath the TV screen.    The only recourse is to pull the  TV’s power plug.   Sometimes,  the stubborn hang up just refuse to go away.  Fortunately,  Xiaomi TV has a recovery mode in which one can do a hard reset.

How to do a Hard Reset?

1. Pull the power plug off the TV and wait for about 20 seconds
2. Push and hold the the “confirm” and “Restore” buttons at the same and plug back the power supply;
   
   
3.  
4. The TV will try to start.   If it does not,   press the white big button just underneath the logo "Mi" in the center of  the TV screen with the other hand or get someone to help; 
5.  The TV will go into recovery mode with the following screen appearing.  Quickly release the "confirm" button first and then the "Restore" button when this recovery screen appears.

6. Select “Wipe Cache” to wipe and clean the caches stored in the memory and then select “Reboot”.  Note that sometimes,  a rebooting will already solve the stubborn hang up without clearing the caches;
7. If the TV again refuse to restart normally,   repeat 1 to 5 and select also “wipe user data”.   
8. Note that there may be a need to pair the remote controller after the restoration. 

 Note:  it is not advisable perform  "Wipe All Data" especially when one has rooted the TV before.
This will also clear the newly installed APKs that is not native to the TV.  Make sure one has a copy of the installed APK for restoration.