#2 – Unfortunately, YouTube has stopped working on Oppo K9x
There is nothing or little you can do when your Oppo K9x becomes unresponsive due to error which shows a notice that “Unfortunately, YouTube has stopped working” which rarely occurs in Oppo devices. You probably won’t be able to run and or use any other application. When you try to launch or use other application in that Oppo K9x it will pop up a screen that shows you the errors notice with no other option other than to press OK to dismiss that notice.
Step 1: Reboot your K9x and quickly navigate to.
Step 2: Settings >> Apps >> All Programs >> YouTube
Step 3: Re-Enable the app and that should solve your K9x problem.
Step 4: Or try uninstalling, reinstalling and updating the YouTube application you have installed.
#3 – Wi-Fi connection issue and fixing on Oppo K9x
Step 1: Go to your K9x settings and press the connection option.
Step 2: Next, press the Wi-Fi option.
Step 3: Now, your Oppo K9x will auto scan for nearby networks to join and will show them on the screen.
Step 4: After the first scan ends, tap for a few seconds on the Wi-Fi you want to connect and press the forget option.
Step 5: Again, tap that same network and input the authentication details and save it. Although, open networks don’t require any password for access.
Step 6: Be sure to confirm that your connection from your network service provider is OK and your router, if that is what you are using, is working perfectly.