I have Philips 6500 Android TV I just upgraded it to 5.1.1 but it is not booting up. Ambilight is working but no image in screen. I don't know what's the deal. Maybe I should just wait. Because in phones when Android upgrades it optimizes some apps. I don't know if it is the same in TVs. I'm looking forward to any kind of support.

Just figured out it wasn't the case TV was actually working but there was no image on the screen. Screen image came in after some play with remote. I don't know what's the case but that happens sometimes. Image is not coming right in.