my Xperia SP

[rakeshSP1]

hi there

my xperia sp handset suddenly restarts during use and i could not switch it off completely to save battery in urgency.

When i swich it off it again restarts. ininitally with 4.1 every thing was ok but after visit to x.p.service center the problem starts.

Now with the update 4.3 i am not satisfied with functionality.

So please ------------------- help

[_alexdon_ · Accepted solution]

Does the same occur if you remove the SIM?

[ShinOrochiX]

Best thing to do is remove the sim, plug into the pc and repair the software. Then put your sim back in and use the phone.

Sony firmware almost always requires a software repair to work properly after an update.

[rakeshSP1]

without sim it doesnt have problem.

But when i put the sim and use the phone it restarts suddenly at any time during usage& most seriously while incoming calls.

[rakeshSP1]

I have already done this procees two time but nothing working.

PC compagion -------- repaired software--------- same issue.

[fedebt]

Maybe it's SIM problem.

Have you tried to clean SIM contacts?

You should try another SIM to verify if it's a SIM related problem. 

[_alexdon_]

You need a new SIM.

[rakeshSP1]

I have two sims problem come with both.

is there any way to clean the phone completely. and then repair with software install.

thanks for u r reply.

[_alexdon_]

You have to perform a software repair using PC companion.The process will erase all internal memory.You might need to charge your device for about 1-2 hours before so the device has at least 60% battery.

Make sure the device is not connected to computer or laptop and turned off (sometimes you have to press power button and volume up until the device vibrates 3 times or on some devices you have to press the small button near the SIM tray or on the back of the device).

Open PC companion->support zone->phone/tablet software update->repair my phone/tablet blue highlighted.Follow the steps given,do not connect your phone until prompted to press volume down while plugging USB cable.

[rakeshSP1]

hey nothing wotked for me . then i open my phone and solved my problem.

if any body has proble of random reboot, dead phone only bliking red , not powering on can contact me on 

i will give the solution.

if you try in my way may be worth and advice to replace pcb board, sim card error and flasing ccostom rom, repair with pc compagion can be kiked off . As service center peoples are not giving good solutions.