Employee broken phone

[sunstrokecity]

All employees are supplied with a company vehicle and company mobile phone.

The employee is responsible for taking care of the phone and repairing any damages that effect use.

New employee said during the week there was a problem with supplied phone, kept open apps etc without pressing any buttons, screen has a small crack in it from dropping approx a month ago.

Employee was told to take the phone to be repaired on Wednesday.

Today, employees phone is uncontactable. Tried various times to phone, text, sent a message on Facebook, still can't get hold of them.

So as not to drip feed employee has only worked for the company for 3 months on a 6 month probation.

Has previously refused to attend a breakdown whilst 'on call', repeatedly makes errors at work, and generally not had a successful time so far.

What repercussions can there be for not being able to reach employee today?

I have never had a work phone that wasn't supplied in a fully protective case at handover and in a case. Absolutely not my responsibility for any reason. Company covers it at all times, theft, damage etc -replace at their own cost -dodgy legal ground at best, unfair employer -yes.

Cases don't always stop damage.
Assume this is the only way to contact them, they don't have a personal phone?