The battery completely died out on my X8 overnight!! Now it won't switch on when the sim is inserted. It comes on without the sim and charges up, can use internet etc., but with the sim inserted it turns itself on and off. Once I tap in my pin code it switches off. The sim is not the problem as it works fine in an old phone.
If after using the Update Service the issue is not resolved, I can only advise that you contact your regions Sony Ericsson support as they should be able to help. Please use the link below to find your regions support number.
