Sony Xperia T3 boot loop

[chlewy]

Hi, 

I have some issue with my smartphone. Normally my phone won't start when I press power button. So, I put it on charging but phone starts automatically bootm red light lights up, it shows up logo SONY and then it turns off. This happends still again and again. It is some kind of loop. But phone don't boot. Same is case of connection with PC. Just flashes red light, then for only few microseconds green ligh flashes, again shows up logo SONY and turns off. Again in the loop. I just hear sound of connection and disconnection bumping 

When I unplug battery connector from motherboard, then there is no logo SONY but there is battery (like battery is totally drain) and it also turns off and situation is repeated. 

I know that similiar topic was here but in case of my problem hard reset did'nt help. I also can´t restore firmware because of problem with PC connetion. Please anybody do you know some solution. Or just if you don't know if its problem with battery (if its destroyed or sommething like that) or its problem with firmaware or in worst case its problem with motherboard?

Very thank you for any responses.

[Uliwooly]

You could buy a new battery and test it, just wondering, have you removed both the SIM and SD cards? XC won't work because the battery has to be above 70%.

Xperia Companion (XC)

Software Repair Guide

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[chlewy]

Thanks for your quick response. I don´t know if its worth it. I know thats small price but I would rather buy a new phone if I would know that is broken motherboard. I don´t want to waste money unnecessarily

[Uliwooly · Accepted solution]

I do think it's the motherboard tbh

[chlewy]

Hi,

thanks, so it was caused by battery

[Uliwooly]

That's a relief

[Heikkiv]

Use Xperia Companion software to fix your mobile! I had same problem but that software fixed mine! Just follow instruction and your mobile wake up alive!

[manz10]

anybody here???
i have a big problem...
i rooted my devices... and was using it for 1 week.. my devices brand is sony ..model xperia T3
after 1 week i had problems like device starts to crash i.e., unfotunately stopped errors... aftr tat i cleared cache , factroy reset and alll the things...
thn i flashed it with flashtool(official).. tis probem fr me persisiting fr months...

so i unrooted my devices..
the same problm occurs ..
bootloop fr every 1 week.. and i have to flash it with flashtool
can anyone please please please tell me a solution!!!!

thanks,

help me out too please

[ismael666]

tengo el mismo problema, hice root mi dispositivo y tuve que flashear use flashtool pero tambien al paso de una semana se pone lento y no abre aplicaciones y tengo que instalar de nuevo todo... hay versiones que me duran hasta dos semanas funcionando, una es la de Canadá, tambien la de Brazil dura mas de una semana, telcel MX no dura mas de 4 dias... ojala alguien nos ayude...

I have the same problem, I made my device root and I had to flash use flashtool but also after a week it gets slow and does not open applications and I have to install everything again ... there are versions that last up to two weeks running, one is from Canada, also from Brazil lasts more than a week, telcel MX does not last more than 4 days ... hopefully someone will help us ...

GT