Related
i tried rooting the new firmware and it was a success, i now have root and dual recovery installed on stock 4.3
here's the other link i posted http://forum.xda-developers.com/showthread.php?p=48805157#post48805157
here's how. (my device is locked BL)
LINKS UPDATED!! (recovery)
1.Backed up my TA Partition
2.Flashed the official .569 ftf using flashtool
3.Unlocked my ZL's bootloader
4.Flash this kernel to get recovery (thanks Minthun46) http://forum.xda-developers.com/devdb/project/?id=700#downloads extract the boot.img and flash it using fastboot or flashtool (fastboot mode)
5.Flash Supersu fix zip and dual recovery (thanks NUT) SUPERSU fix.zip http://nut.xperia-files.com/download.php?dlid=U3VwZXJTVV9maXg=
recovery that i used http://nut.xperia-files.com (download the latest flashable zip for ZL)
6.Re flash .569 ftf exclude everything except kernel and fotakernel.
7.Restore TA Backup.
FOR UNLOCKED BL
just follow step 2, 4, 5, and 6
VOILA!!! device is now rooted and has working recovery
PS
Will only work for ZL that can be bootloader unlock.
Hit thanks if it helps you.
Don't put Locked BL in the title, you only managed to root because your phone was unlockable. Putting Locked BL in the title states that your bootloader can also be locked for this method to work, and but unless your ZL can be bootloader unlocked, this method cannot be used for locked BL
fcb13 said:
Don't put Locked BL in the title, you only managed to root because your phone was unlockable. Putting Locked BL in the title states that your bootloader can also be locked for this method to work, and but unless your ZL can be bootloader unlocked, this method cannot be used for locked BL
Click to expand...
Click to collapse
Yeah i forgot that some bl are unlockable thanks for bringing that up.
Did it updated baseband?
Sent from my C6503 using Tapatalk
ryanrudolf said:
Did it updated baseband?
Sent from my C6503 using Tapatalk
Click to expand...
Click to collapse
baseband is .51 not sure if thats new from the leaked one.
I flash ZL-lockeddualrecovery2.7.60-BETA.zip , no CWM , no TWRP and got bootloop
can you post correct package ?
Soheil_rf said:
I flash ZL-lockeddualrecovery2.7.60-BETA.zip , no CWM , no TWRP and got bootloop
can you post correct package ?
Click to expand...
Click to collapse
this is the recovery i used http://nut.xperia-files.com/download.php?dlid=WkwtbG9ja2VkZHVhbHJlY292ZXJ5Mi43LjQzLUJFVEE=
if you still get bootloop just root it and install recovery using your pc. use nut's dual recovery for lockedbootloader for windows.
dyepnoodle said:
this is the recovery i used http://nut.xperia-files.com/download.php?dlid=WkwtbG9ja2VkZHVhbHJlY292ZXJ5Mi43LjQzLUJFVEE=
if you still get bootloop just root it and install recovery using your pc. use nut's dual recovery for lockedbootloader for windows.
Click to expand...
Click to collapse
Thanks mate , I root it again and relock bootloader with TA
root is enough
dyepnoodle said:
i tried rooting the new firmware and it was a success, i now have root and dual recovery installed on stock 4.3
4.Flash this kernel to get recovery (thanks Minthun46) http://forum.xda-developers.com/show....php?t=2450565 extract the boot.img and flash it using fastboot or flashtool (fastboot mode)
5.Flash Supersu fix zip and dual recovery (thanks NUT) http://forum.xda-developers.com/show....php?t=2567266
recovery that i used http://nut.xperia-files.com/download.php?dlid=WkwtbG9ja2VkZHVhbHJlY292ZXJ5Mi43LjQzLUJFVEE
.
Click to expand...
Click to collapse
Both links are 404 Could you please share?
Anyway, since I am at linux, I've made mu TA backup using Flashtool (RAW Backup). is this alrigh to restore?
Thx,
Kernel and SuperSU link that you gave are invalid. "404 Page Not Found". Can you share it again?
renzzoman said:
Kernel and SuperSU link that you gave are invalid. "404 Page Not Found". Can you share it again?
Click to expand...
Click to collapse
Link updated pls check OP. Kernel, SuperSU fix and Dual recovery link added
dyepnoodle said:
Link updated pls check OP. Kernel, SuperSU fix and Dual recovery link added
Click to expand...
Click to collapse
Ok, thanks:good:
will these step factory reset the device or will it keep all my apps/settings?
Is the purpose of relocking the device is to keep bravia engine?
CowMix said:
will these step factory reset the device or will it keep all my apps/settings?
Is the purpose of relocking the device is to keep bravia engine?
Click to expand...
Click to collapse
It will reset your device if u put a check on wipe apps log on flashtool. I recommend a clean install to avoid problems.
Yes i relocked it to regain BE2 for photos
I already updated my phone to 4.3 version, but I'm really missing the root, so, my question is, can i make a rollback to 4.2 version using the flhashtool without any problem?
Ty
CHaPoCA said:
I already updated my phone to 4.3 version, but I'm really missing the root, so, my question is, can i make a rollback to 4.2 version using the flhashtool without any problem?
Ty
Click to expand...
Click to collapse
yes, no problem
Att Gustavo RD78
Another question. I want only root and stock kernel, so, in the step 6 what i have to do? Or I'll got the stock kernel following his steps?
CHaPoCA said:
Another question. I want only root and stock kernel, so, in the step 6 what i have to do? Or I'll got the stock kernel following his steps?
Click to expand...
Click to collapse
if you follow the whole steps, youll have root and stock kernel.
Thanks guys for all your help. My device is now with 4.3 version and rooted! XD
CHaPoCA said:
Thanks guys for all your help. My device is now with 4.3 version and rooted! XD
Click to expand...
Click to collapse
glad to help.
I have an Xperia ZL C6506 - 10.4.B.0.569
I went into the service menu and it says my bootloader can't be unlocked
Is there anyway to work around this and unlock it anyway? If not can I still root my phone?
If so please advise as to how. I looked on the forums but most posts relate to unlocked bootloader or
a different model or build.
If you need more info please let me know.
Thanks
Endrith said:
I have an Xperia ZL C6506 - 10.4.B.0.569
I went into the service menu and it says my bootloader can't be unlocked
Is there anyway to work around this and unlock it anyway? If not can I still root my phone?
If so please advise as to how. I looked on the forums but most posts relate to unlocked bootloader or
a different model or build.
If you need more info please let me know.
Thanks
Click to expand...
Click to collapse
You can root it and install recovery. Unfortunately you cannot unlock the bootloader.
This means that you can only flash stock based Roms, not any AOSP Roms like cyanogenmod, aokp, omni, p.a.c, etc... More specifically, you can only flash stock kernels. The ROM is Dependant on the kernel you are using. Stock kernel for stock Roms. Aosp kernel for aosp based Roms.
With Sony's devices (as of late anyway), the kernel is baked into the boot.IMG. And you can only alter, change, or flash a custom boot.IMG if your bootloader is unlocked. Sucks, but that's how it is.
Sent from my C6503 using Tapatalk
Thanks for the info.
At least I can still root the phone which at this point was my primary interest.
As I mentioned I have not seen any rooting info for my particular build or model together. Am I missing something?
Did I not see it or has no one done it yet for this build/model setup.
Where would you suggest I go from here?
Endrith said:
Thanks for the info.
At least I can still root the phone which at this point was my primary interest.
As I mentioned I have not seen any rooting info for my particular build or model together. Am I missing something?
Did I not see it or has no one done it yet for this build/model setup.
Where would you suggest I go from here?
Click to expand...
Click to collapse
You need to downgrade to .423 stock kernel. Use Androxyde's Flashtool to flash that kernel.
Then use Doomlord's Rooting Toolkit to root your phone.
After that, flash the .569 kernel with Flashtool.
Now you can install NUT's dualrecovery.
Here are the steps:
http://forum.xda-developers.com/showthread.php?t=2388946
At point 11. you flash the .569 kernel..
I have successfully rooted my phone.
However I can't figure out how to get it back to .569
Do I need to use the Flash and Stripped version(This seems to be linked to rooting)
Or can I just use this
[FTF] Xperia ZL (C6506) 4.3 - 10.4.B.0.569 - Generic US
Found at this link
http://forum.xda-developers.com/showthread.php?t=2637847
Edit:
On a side note will I be able to update to 4.4 Kitkat when it is released for my phone by the normal download
or will I have to flash it to keep the root?
Edit:
So I tried flashing the Full FTF but ended up losing root. I tried to do the other option of using the flash/stripped version but it says I need TWRP and there
is no version for the ZL only the Z. Will the Z one work or am I going about this the wrong way.
Any advice would be greatly appreciated. Thanks.
Endrith said:
I have successfully rooted my phone.
However I can't figure out how to get it back to .569
Do I need to use the Flash and Stripped version(This seems to be linked to rooting)
Or can I just use this
[FTF] Xperia ZL (C6506) 4.3 - 10.4.B.0.569 - Generic US
Found at this link
http://forum.xda-developers.com/showthread.php?t=2637847
Edit:
On a side note will I be able to update to 4.4 Kitkat when it is released for my phone by the normal download
or will I have to flash it to keep the root?
Edit:
So I tried flashing the Full FTF but ended up losing root. I tried to do the other option of using the flash/stripped version but it says I need TWRP and there
is no version for the ZL only the Z. Will the Z one work or am I going about this the wrong way.
Any advice would be greatly appreciated. Thanks.
Click to expand...
Click to collapse
Hey,
There is recovery for the ZL, you can get it from Nut's site here http://nut.xperia-files.com/
Looks like his latest recovery is called "ZL-lockeddualrecovery2.7.95-BETA.installer.zip (9.35MB)" at the moment.
If you flash my build 569 and lost root then you used the untouched FTF from Sony and makes your phone completely stock.
What you wanna do is flash back to an old 4.1.2 that will let you obtain root with DoomLord's 1 click method.
Once root is on your phone, install Nut's DualRecovery from the link I just gave you.
Download my 2 files (stripped FTF and flashable zip) and copy the flashable zip on your SDCard.
Now reboot into recovery and flash the flashable zip, once it flashes successfully, power off your phone. DO NOT Reboot.
Use Flashtool and flash the stripped FTF and boot your phone.
You will be on rooted build 569 with root and dualrecovery already installed. :good:
-------
It was also suggested to me for my Xperia tablet that if you already had root and simply wanted to update, all you have to do is:
1) copy zip to SDcard
2) go into recovery and install zip (without wiping anything)
3) turn off phone
4) flash kernel via flashtool
But I haven't tested this way
Thanks Crash338 that worked
I now have a rooted phone with .569
Guys just sharing how I updated my ZL to the latest KK 4.4.2 and ROOT, in case someone is interested. Total time it took me around 2hrs using 10MB connection.
1. Downgrade to 4.2 Nordic version. Optional if youre 4.3 is already in Nordic.
2. Relock bootloader.
3. Use SUS to download and install the 4.4.2 update.
4. Decrypt and create your own FTF from the files downloaded by SUS.
5. Unlock bootloader.
6. Flash CM11 KK boot.img using fastboot.
7. Boot to CWM, flash supersu update zip to root the phone
8. Relfash STOCK Sony Kernel using the FTF created in step4.
9. Enjoy ROOT access.
10. Optional - relock bootloader.
Disclaimer - by following the steps, your warranty is VOID now. BUT you get to have the latest version of Android, ROOT and customization for your phone. I have made necessary backups to restore everything to STOCK, including DRM keys in case I need to go for warranty.
Edit - i'll update later with download links for flashtool, SUS, CM11 bootimg, chainfire supersu update
Additional screenie for fastboot commands -
2 questions, I'd love to do this, but...
1. Where can I find this nordic version? Is this an ftf somewhere?
2. How do you relock the bootloader? Is there something available? I can't seem to find it...
where i can find this supersu update zip? it comes with KK CM11?
gabrielmop said:
where i can find this supersu update zip? it comes with KK CM11?
Click to expand...
Click to collapse
Here
http://click.xda-developers.com/api...pers&txt=http://download.chainfire.eu/supersu
Sent from my C6503 using Tapatalk
VenQWish said:
2 questions, I'd love to do this, but...
1. Where can I find this nordic version? Is this an ftf somewhere?
2. How do you relock the bootloader? Is there something available? I can't seem to find it...
Click to expand...
Click to collapse
1. Yes its FTF, you can find it here also in xda.
2. Relock bootloader via flashtool or backup TA
Sent from my C6503 using Tapatalk
ryanrudolf said:
Here
http://click.xda-developers.com/api...pers&txt=http://download.chainfire.eu/supersu
Sent from my C6503 using Tapatalk
Click to expand...
Click to collapse
Thank you
Hi-
I have rooted my device. Bootloader unlocked. Now my doubt is:
1. If I will still receive Kitkat update from Sony?
2. Can I be able to just download the same and install?
3. If yes, what will happen to my root?
Regards
Nishantjoshi said:
Hi-
I have rooted my device. Bootloader unlocked. Now my doubt is:
1. If I will still receive Kitkat update from Sony?
2. Can I be able to just download the same and install?
3. If yes, what will happen to my root?
Regards
Click to expand...
Click to collapse
Yes you will get a notification that an update is available, but your phone wont be able to install it (since bootloader is unlocked).
Thus, to apply the update, you need flash the stock firmware via flashtool.
And yeah, you'll lose root access once you flash the firmware. Just flash su binary via recovery to get it back.
Hope this helps.
Sent from my D5322 using XDA Premium 4 mobile app
sohailferdous said:
Yes you will get a notification that an update is available, but your phone wont be able to install it (since bootloader is unlocked).
Thus, to apply the update, you need flash the stock firmware via flashtool.
And yeah, you'll lose root access once you flash the firmware. Just flash su binary via recovery to get it back.
Hope this helps.
Sent from my D5322 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks @sohailferdous.... but I have few doubts - 1. I know the process of flashing a firmware via flashtool....but for that your need the ftf file...so is there a way to get the stock ftf file? Because .253 ftf india is still not available. The one present is AUS version
2. When you say SU binary I take it that its the SU zip file which is present in Doomlord's root update.
Nishantjoshi said:
Thanks @sohailferdous.... but I have few doubts - 1. I know the process of flashing a firmware via flashtool....but for that your need the ftf file...so is there a way to get the stock ftf file? Because .253 ftf india is still not available. The one present is AUS version
2. When you say SU binary I take it that its the SU zip file which is present in Doomlord's root update.
Click to expand...
Click to collapse
1. The AUS version should work on all phones.
2. Yup, the SU zip file on Doomlord's root update will work fine.
Sent from my D5322 using XDA Premium 4 mobile app
Hi,
I have a T2 Ultra Dual (Chinese Version ... XM50h) flashed it with the Australian firmware. Works great and shows now as D5322. Today I read about Kitkat Update - I'd connected the phone to the PC Companion - Companion started to download the Kitkat Update but when it shutdown the phone to install the upgrade I got the message that there is a modified software on the phone - update can not continue (Error2003)
Is it possible to get a flashable file out of PC Companion?
klarmann said:
Hi,
I have a T2 Ultra Dual (Chinese Version ... XM50h) flashed it with the Australian firmware. Works great and shows now as D5322. Today I read about Kitkat Update - I'd connected the phone to the PC Companion - Companion started to download the Kitkat Update but when it shutdown the phone to install the upgrade I got the message that there is a modified software on the phone - update can not continue (Error2003)
Is it possible to get a flashable file out of PC Companion?
Click to expand...
Click to collapse
No, u cant use pc companion until n unless you relock your bootloader, try flashtool as an alternative.
so_cool_rohan said:
No, u cant use pc companion until n unless you relock your bootloader, try flashtool as an alternative.
Click to expand...
Click to collapse
Strange - bootloader should be locked - how can I check if it is locked/unlocked?
When I try to flash 4.4.2 unbranded firmware from Ashwin - flashtool stops after the bootcode and nothing happens. Flash failed (so says the phone after rebooting. PC Companion repair does not work.
Reflash of the Australian 4.3 works - phone is up and running after 4.3 flash ...
Strange ...
Found a solution by myself!
Downloaded recent Flashtool (0.9.16)
Clicked on BLU
relocked bootloader (I had forgotten that it was unlocked)
Rebooted the phone
Started PC Companion
Update to 4.4.2
Sucess
klarmann said:
Strange - bootloader should be locked - how can I check if it is locked/unlocked?
When I try to flash 4.4.2 unbranded firmware from Ashwin - flashtool stops after the bootcode and nothing happens. Flash failed (so says the phone after rebooting. PC Companion repair does not work.
Reflash of the Australian 4.3 works - phone is up and running after 4.3 flash ...
Strange ...
Click to expand...
Click to collapse
We all have gotten a sneak peek of Sony's lollipop update onto our beloved z1 compact. Through the many ways available I for instance used an ftf file. But they do not come pre-rooted like the zip file alternatives.
The only way to root ftf I am told is to flash a kernel pre-installed with a recovery then flash SuperSU zip. I have flashed like 3 different boot.imgs only to find no TWRP/Philz/cmw recovery.
Can anyone give me a WORKING kernel that will boot into a recovery? Would really appreciate this.
Found my solution
Edit: I just found a cm11 snapshot boot.img kernel, flashed it. Booted to recovery and flashed a pre-rooted rom zip. Easy as pie.
Thanks all.
Just flash KK firmware 108, root it, install recovery latest version, and afterwards flash any customised prerooted ROM of your choice.
kokkss said:
Just flash KK firmware 108, root it, install recovery latest version, and afterwards flash any customised prerooted ROM of your choice.
Click to expand...
Click to collapse
This is too much work. Work that I have to do. It's the only way to root this ftf. damn it
It's up to you.
I've done it.
I made a pre-rooted ftf using PRF creator and compiling the SUPERSU v2.37 and Z1C locked dual recovery 2.8.12 from Nuts site.
You can use Xperifirm to download the the firmware, then use Flashtool to decrypt the fileset and create the FTF, then you're good to go.
Hello guys.Does this method works??Without unlocking the bootloader? http://techchomps.com/root-14-5-a-0-242-android-5-0-lollipop-on-sony-xperia-z1-compact/
kos25k said:
Hello guys.Does this method works??Without unlocking the bootloader? http://techchomps.com/root-14-5-a-0-242-android-5-0-lollipop-on-sony-xperia-z1-compact/
Click to expand...
Click to collapse
Hello,
No don't work. With LB, you can't flash boot.img.
So i must unlock it right??Can anyone please send me the directions on how to unlock and root?
martin091 said:
I've done it.
I made a pre-rooted ftf using PRF creator and compiling the SUPERSU v2.37 and Z1C locked dual recovery 2.8.12 from Nuts site.
You can use Xperifirm to download the the firmware, then use Flashtool to decrypt the fileset and create the FTF, then you're good to go.
Click to expand...
Click to collapse
Awesome, which version region did you use? Mind sharing?
I am almost running out of options
So after everything done can we restore TA partition and relock the bootloader?
Not sent by me!
bumjrah said:
Awesome, which version region did you use? Mind sharing?
I am almost running out of options
Click to expand...
Click to collapse
I'm from the UK but I used the "Customized US" version. It works all the same, I've put together a UK one now but I'll need to wipe data before I can use it.
I'd share if I didn't have awful internet. The file is massive, unfortunately.
You'll find multiple threads on how to do different parts.
You need to create your pre-rooted firmware, then you'll need to download KK with Xperifirm (probably .108) and flash it with Flashtool.
Root KK using Easy Root Tool and install XZDualRecovery using the desktop client.
Once you're rooted with SuperSU/SuperUser and Recovery you can install the pre-rooted firmware (PRF) as a flashable zip within Recovery itself.
There's also work arounds for Xposed which you can find too, I've used them and it's all working as it should for now.
I also have a locked bootloader, so don't worry about unlocking it. I'll have a look around for the threads I used and post any I find.
---------- Post added at 08:38 AM ---------- Previous post was at 08:24 AM ----------
Working Xposed work-around
http://forum.xda-developers.com/showpost.php?p=60298690&postcount=123?
FR pre-rooted firmware with extras (not sure on your region or if it'll work properly. Worth a try?)
http://forum.xda-developers.com/sony-xperia-z1-compact/general/14-5-0-242customizedfrpre-t3083055
PRF Creator
http://forum.xda-developers.com/crossdevice-dev/sony/tool-prfcreator-easily-create-pre-t2859904
Xperifirm
http://forum.xda-developers.com/cro...xperifirm-xperia-firmware-downloader-t2834142
Flashtool
http://forum.xda-developers.com/showthread.php?t=2335555
I'll leave you to find your own SuperSU or SuperUser zip, same with XZDualRecovery as they're frequently updated so you're better off finding the latest versions.
But how can you flash 108 if you are already on 242 and you have a locked bootloader? You must unlock it first...
Not sent by me!
BlackArtsInc said:
But how can you flash 108 if you are already on 242 and you have a locked bootloader? You must unlock it first...
Not sent by me!
Click to expand...
Click to collapse
What I did is that I downgraded with Flashtool, rooted KK, and then flashed a prerooted rom through the recovery. No need to unlock the bootloader.
c6nsor9d said:
What I did is that I downgraded with Flashtool, rooted KK, and then flashed a prerooted rom through the recovery. No need to unlock the bootloader.
Click to expand...
Click to collapse
How did you downgrade really?
You just flashed the 157 FTF in flashmode? It's doable?
Not sent by me!
BlackArtsInc said:
How did you downgrade really?
You just flashed the 157 FTF in flashmode? It's doable?
Not sent by me!
Click to expand...
Click to collapse
OK, there seems to be some loss in translation somewhere. Hope this will clear up some stuff:
1. Flash KitKat (kernel, system, everything).
2. Root it.
3. Install recovery (here)
4. Since you don't want to make your own pre-rooted firmware, here. Click on 'Google Drive' for the zip, and FTF. You need both.
5. Put the zip in your SD card/internal.
6. Boot into recovery and clear all data (dalvik, system, data, everything).
7. Flash the zip. DO NOT REBOOT.
8. Shutdown and use Flashtool to flash the .ftf you downloaded. Check System and Baseband on the 'exclude' column.
9. Have fun!
@dazzerfong OK,first of all thanks for your answer. What I'm asking is how did you do the first step with locked bootloader.
Flashtool->Flashmode->KitKat 157 FTF->Then root it blah blah?
Are these steps correct or not? Im about to try today cos I really miss root on my phone.
If you are already on Lollipop and your bootloader is locked you can get root this way.
1.Download the correct KitKat (.157) ROM for your country/operator using Xperifim.
Convert it to FTF using Flashtool. (there are tutorials,search)
2.Flash the FTF you created using Flashtool's Flashmode. Include everything.
3.Root your KitKat (.157) using the forum's tutorials and also install [NUT]'s recovery.
4.Boot into recovery and flash your pre rooted ROM in flashable zip format.
(There are also tutorials on how to create this with Xperifim and PRF programs).
5.Enjoy rooted Lollipop with locked bootloader.
Not sent by me!
BlackArtsInc said:
@dazzerfong OK,first of all thanks for your answer. What I'm asking is how did you do the first step with locked bootloader.
Flashtool->Flashmode->KitKat 157 FTF->Then root it blah blah?
Not sent by me!
Click to expand...
Click to collapse
Yep! All done with locked bootloader (or, if you want, unlocked, but you're wasting your time if you're unlocked). So, first you flash the FTF of a KitKat ROM.
Rooting, use Towelroot or something. No idea why, but Towelroot refuses to play with my TWRP (recovery), so I used the old method.
@dazzerfong
One last question cos I just did all the steps but I couldnt reboot into Lollipop after flashing my pre rooted rom zip file.
6. Boot into recovery and clear all data (dalvik, system, data, everything).
7. Flash the zip. DO NOT REBOOT.
8. Shutdown and use Flashtool to flash the .ftf you downloaded.
Check System and Baseband on the 'exclude' column.
Click to expand...
Click to collapse
On step 8 which FTF you mean exactly? I assume you mean the FTF from which you created
your pre rooted zip initially? In my case the Customized GR version?
N.
BlackArtsInc said:
@dazzerfong
One last question cos I just did all the steps but I couldnt reboot into Lollipop after flashing my pre rooted rom zip file.
On step 8 which FTF you mean exactly? I assume you mean the FTF from which you created
your pre rooted zip initially? In my case the Customized GR version?
N.
Click to expand...
Click to collapse
You should have downloaded 2 things so far: the zip, and the FTF. That FTF is Lollipop stock: doesn't matter where it's from. Flash that in Flashtool, but remember to check 'System' and 'Baseband' in the 'Exclude' column.
BlackArtsInc said:
How did you downgrade really?
You just flashed the 157 FTF in flashmode? It's doable?
Not sent by me!
Click to expand...
Click to collapse
Downgrade to .108 (with flashtool) in order to directly root the phone, whereas with .157, you'll have to flash an older kernel with flashtool in order to get root.
Once rooted, just get yourself a flashable prerooted firmware (zip file) and flash it from the recovery (after a wipe factory reset; wipe data; wipe cache; wipe Davilk Cache and Wipe System).