Xperia Arc S auto restart

[Gourgobinda]

My phone since 2 years was working properly, suddenly today when i was going to share one song with friend, clicked on Bluetooth icon on share  it got restarted and since then its contineously restarting.

I Installed EMMA and when connected phone its showing Locked phone detected.

I also checked if this battery issue, i also put one paper bottom of battery edge but that didn't work too. Can you please help !!

Thanks

Gourgobinda

[Uliwooly]

you have 2 options

1. use EMMA and reinstall the firmware 

or 

2. relock your bootloader > use either PCC or SUS or Flashtool 

[Gourgobinda]

this is solved now. not by flash method but by updating software pc companion.

thanks for reply.

[Gourgobinda]

This again happening today the same. Last happened on 2nd May. I clikced on Bluetooth short cut on home screen and my phone restarting since then. So have removed battery out of it and kept as it is. NOw checking how can i restore ....