failed to update

[Mr525]

My phone not update over wifi. Here is problem. It could download 100% error in install. There message appears "could not install".

[7425]

There's some software update 18.3.1.B0.18
It downloads completely to 100% and when I tap to install, it says couldn't install..
Tried downloading and installation for 3-4 times and it downloads but couldn't install

[Uliwooly]

Is this through PC companion?