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I think it's hardware related but to narrow it down repair the phone with PCC if that doesn't work then contact your Local support
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Hi @Jedthered
Welcome to the community
I would do as @uliwoolysuggests and check to see if this is a software issue using the Software repair process.
But if it has failed one of the Xperia Diagnostic tests it is more likely to be a hardware issue with the device, so you may be best to have a chat with your contact your Local support team as it will need to be serviced.