Xperia X resetting itself over again

[cattl]

I've sent my phone back to Sony Repair 3 times now, and each time it gets sent back to me with a note saying 'no fault found'. The phone works okay for an hour but when I use it moderately (whatsapp, email, calls etc) within an hour or so it reboots more and more. Usually clocking about 5 in an hour.

How can I fix this if Sony don't think theres a fault? It's under warranty so should be replaced

[CameronT]

Hi @cattl, welcome to the community.

I recommend you test your phone in safe mode for a day so that you can eliminate any third party applications that may be causing the issue.

If the issue is caused by a third party app, or it can not be replicated, your repair agent will generally come back with "no fault found".