How to manually update, root, downgrade 2012 Xperias

[uliwooly-wooly]

How to manually update 2012 Xperias to Android 4.0.4

Click on one of the topics

• Prepping
• Back up current firmware
• Flashing
  
• Downgrade
• Video tutorial on flashing
• Warranty & Rooting

as always thanx XDA forum

Rooting "might" void your warranty. I'm not responsible if anything happen to your phone (nothing should go wrong,, if something do go wrong, just repeat the whole process).

[Garret141]

Try to repair with SUS

[Uliwooly]

is your data plan working?

[Uliwooly]

Root Xperia S without unlocking the bootloader

[clinta12]

so this means technically you are not voiding your warranty right?:smileymischief:

[#6]

hey uliwooly

what's the difference of Generic CH (=Switzerland) and Generic DE (=Germany)?? i'm using Generic DE (=Germany) it seems a bit laggy. is there any difference between those?

[Uliwooly]

there isn't one, just few extra apps or less apps

[#8]

thanks for the info :smileyhappy:. i watched a video of official ics and it seems not laggy. i thinks you also using this one, your is also a bit laggy?are you using Generic CH (=Switzerland)?

[Uliwooly]

I've tried different firmwares and so far they aren't laggy, uninstall mcafee and all antivirus, taskillers, battery apps

Don't forget to mark the Correct Answers & Helpful Answers

[Uliwooly]

it seems that you will only void it if you damage your phone after or while rooting

[#11]

hi i updated my xperia s to ics 4 no problem and very stabilty  work but is this void my warranty?