Xperia P booting problem

[Crystal1]

My phone is rooted, today i tried to setup chainfire 3d, when i command to install driver the phon reboots bt stuced on sony displayed black screen, i tried to restard the phon but the problem stills the same. Stucking on sony displayed black screen & doesn't respond, even the power button does not work. Need a proper solution.

[Sam]

You are going to need to reinstall the firmware:

1. Download the PC Companion software from http://www.sonymobile.com/gb/tools/pc-companion/
and install it on your PC.
2. Install and open PC Companion then select Support Zone.
3. Phone Software Update.
4. Start.
5. Repair Phone
6. Continue
7. Accept data removal
8. Next
9. Wait for prepare
10. Select Phone
11. Follow the connection steps

Please also be aware that if you instralled this:

https://play.google.com/store/apps/details?id=eu.chainfire.cf3d&hl=en

it is not compatible with your phone "For Froyo and Gingerbread ONLY. NOT COMPATIBLE with Honeycomb/Ice Cream Sandwich/Jelly Bean"

---

Don't forget to mark posts that answers the topic as Accepted Solution. 
If you find any post helpful, press Kudos.
What are your thoughts about this forum? Let us know by doing this short survey.

[jackxperiaP]

use flashtool and flash the stock ftf file ..

[Crystal1]

Sorry for the delay, but my problem is'nt solved yet. My boot loader was unlocked and I donot have recovery. I'm a newbie on Android os, I tried the prosedure you gave me, but could't flash my phon. I'm kind of worried about my phone please help me out. PC companion can't detect my phone, in device manager device shows with a warning sign. Cant flash.

[jackxperiaP]

download flashtool http://www.flashtool.net/download.html then download the stock ftf file https://mega.co.nz/#!ngwBARRJ!H_XrsU5RH9iGN-iH3COmRlXf2xImsSnXy7DpJ4wYT3A and one thing i am not sure is whether we can flash the stock ftf file on an unlocked bootloader ..