Youtube app did not work, now updates not installing

[ramendik]

I have an M4 Aqua Dual with Android Lollipop.

Today, I tried using the YouTube app but it failed to show any videos with "there is a problem playing".

I decided to reinstall YouTube, but when I selected Uninstall for it in Play Store, only the updates were uninstalled.

Now the app acutally works. But attempts to update it fail. The update is downloaded but can not be installed. I tried restarting the phone and deleting cache/data for Play Store and Download Manager. This has not helped.

How can I fix the YouTube app on my phone so it updates and works?

[Johneff]

I had the same problem. YouTube did not install updates with error 501. I called Xperia support. They answered the phone on first ring. The day after there was a system update available. Thank you Sony.

[AmanChugh]

Same phone with same problem.....

[ramendik]

So there's a system update available? How do I get that?