To fix the HDMI output issue (do this at your own risk):
1. Download Build Prop Editor. Or if you have root browser or other apps that can access the root of your device, just go to system and find the build.prop file and open it.
2. Find build.prop.hdmi.rotation and add 90 (or 180) to the initial value depending on the problem of the output. If it is upside down, add 180 to the value you find in the file. If it is sideways, add 90 to the original value in the file.
3. Save and the issue is solved!
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