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Xperia SP C5303 4.3 not powering up

Message 1 of 3
Message 1 of 3

Xperia SP C5303 4.3 not powering up

Dear Friends


Resently I unlocked my Xperis SO(C5303) bootloader. I Flashed Android 4.1.2 (12.0.A.1.257), After that it works fine.


I wanted to update this to official Jelly bean 4.3. I downloaded the file from below link and from many other source of downloads


After flashing 4.3 kernal mobile does not turn ON. SONY symbol come with three colour lights blinking and it goes off, this keeps repeating but never turns ON. To make my mobile work again I must flash 4.1.2.


I tried to check update service with Emma software. It always says no available service found...!!!




Kindly help...!

Message 2 of 3
Message 2 of 3

Re: Xperia SP C5303 4.3 not powering up

Well, you can try using .

sony_sign_logo.png - Official Sony Xperia Support Staff

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Message 3 of 3
Message 3 of 3

Re: Xperia SP C5303 4.3 not powering up

Dear Samuel


I tried with Xperia Flash tool method also. my mobile gets connected to this "EMMA" software, but it alwasy says no service updates available.