After the 4.0 update not turn on my xperia arc. Why?

[#1]

After the 4.0 update not turn on my xperia arc. Why?HELP!!!!!!!!:smileyshocked:

[Nabeel]

Take the battery out and reinsert it after few minutes

Connect it to the wall charger and tellme the colour of led it produces

if it's red, leave it to charge for about half an hour

Also what colour of led blinks when you try to turn it on ?

[#3]

When is attached to the charger  the green LED flashes.

Also flashes when I try to turn it on.

[Nabeel · Accepted solution]

Still didn't turn on ?

Then follow"

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Backup everything as it will erase all data on phone (sms, contacts,apps)

Update/Repair your phone via PCC or SUS

PCC (PC COMPANION) – Repair your software with this .First do the setup without connecting your mobile to pc.(only connect when you are asked to).

Do it as follow >> PCC > SUPPORT ZONE> SOFTWARE UPDATE> REPAIR SOFTWARE (written with blue)  

PC Companion http://www.sonymobile.com/global-en/tools/pc-companion/

SUS ( Sony Update Service)  ... download and install it on pc and follow the on-screen instructions http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe

                  or

http://www.sonymobile.com/global-en/tools/update-service/

Both the links are same

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[#5]

Thank you so much now everything is solved! Thanks!!