The original 2.1.0 (not the modified image) had issues in terms of
- player restart not working, shows SD card terminal messages
- the screen is blank upon boot and takes 3-5 minutes for the content to show up.
To resolve the issue,
- Please reprogram the SD card image with 1.9.9aa or 2.1.0 modified image.
- OR You could also fix the image by logging into the player and issuing the following commands
sudo apt-get -y --fix-missing update
sudo apt-get -y upgrade