Default Can anyone help with software 1.31.651.2 update?

My girl has an HTC one and for months it has had an update that will not install. During installation it has a black screen, phone and for a very brief moment a green icon (can't tell it disappears to quickly) before it changes to a red triangle.
Any help at all would be appreciated.

Additional info,
Still on Android 4.1.2 and current software version is 1.29.651.10.

Not rooted bit could be if needed.

Thank you in advance.

Sent from my "All New EVO"
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