Update old tablet with Android version 4.4.2?

In the meantime, I can no longer do anything on my tablet, Netflix and Co. Are apparently no longer supported by this version. Unfortunately, I can't update the tablet myself. Is there still a way to get the apps up and running again?

Look for a custom Rome at xda developers

Unfortunately I don't have much knowledge of technology, can you explain that to me again for stupid things?

Then this is not for you anyway 😉

OK -.