If you want to restore default settings on GRUNDIG 55GUB8960 you should follow our guide and perform the hard reset operation. As a result, you will delete all personal info, customized settings and installed apps on your GRUNDIG 55GUB8960. Check out how to hard reset GRUNDIG 55GUB8960 and wipe all personal data from the TV. It's the easiest way to bring back the default software configuration.
