Database Develop

[Q] How to Rectify Bootloop Problem using Flash Tool

I was stuck up with Sony ericsson logo after installing the ROM CM7.1 , i tried to rectify this problem using flash tool but i couldn't. Please help me on this.

Vigneshj said:
I was stuck up with Sony ericsson logo after installing the ROM CM7.1 , i tried to rectify this problem using flash tool but i couldn't. Please help me on this.
Click to expand...
Click to collapse
Did you unlocked your bootloader ? And which CM rom are you using exactly ?

Vigneshj said:
I was stuck up with Sony ericsson logo after installing the ROM CM7.1 , i tried to rectify this problem using flash tool but i couldn't. Please help me on this.
Click to expand...
Click to collapse
relax dude!
maybe you can try this!
- first download X8 E15i 2.1.1.C.0.0._un.ftf from filecrop
put in the firmware folder on Flashtool
- flash that kernel, so you get your phone in 2.1
- root your phone with flash tool by clicking the cross icon
-unlock bootloader (remember do not unlock BL for 11w29+)
- flash the kernel
- backup
- factory reset, wipe data, etc
- flash your ROM
Done! :laugh:

hi every1. im new to this kind of thing. i got a notification from cyanogenmod saying that there was an update avalible for my phone. i then downloaded it and installed it using cwm. i chose the default install option and when my phone rebooted itself, its just stuck on the sony ericsson logo. i know this is called a bootloop but i tried to boot into cwm (by rapidly pressing back when the SE logo appears) but nothing hapened. i took the battery out and when i went ot press the power button the phone turned no itself and is just stuck at the SE logo. can some1 pls help me :-(

s3nbon5akura said:
hi every1. im new to this kind of thing. i got a notification from cyanogenmod saying that there was an update avalible for my phone. i then downloaded it and installed it using cwm. i chose the default install option and when my phone rebooted itself, its just stuck on the sony ericsson logo. i know this is called a bootloop but i tried to boot into cwm (by rapidly pressing back when the SE logo appears) but nothing hapened. i took the battery out and when i went ot press the power button the phone turned no itself and is just stuck at the SE logo. can some1 pls help me :-(
Click to expand...
Click to collapse
You should flash using flash tool to solve it

praveenkumarkm8 said:
You should flash using flash tool to solve it
Click to expand...
Click to collapse
how do i do that? sorry about this

s3nbon5akura said:
how do i do that? sorry about this
Click to expand...
Click to collapse
Here read these..
http://forum.xda-developers.com/showthread.php?t=1755215
Hit thanx if it helped..
Sent from my LEWA using xda premium

And here's the .ftf file of stock rom...
Sent by the walking walkman..

BlackRabbit1703 said:
relax dude!
maybe you can try this!
- first download X8 E15i 2.1.1.C.0.0._un.ftf from filecrop
put in the firmware folder on Flashtool
- flash that kernel, so you get your phone in 2.1
- root your phone with flash tool by clicking the cross icon
-unlock bootloader (remember do not unlock BL for 11w29+)
- flash the kernel
- backup
- factory reset, wipe data, etc
- flash your ROM
Done! :laugh:
Click to expand...
Click to collapse
Thanks for ur information, I tried all those steps mentioned above. Now my phone is working fine. Now I installed GingerDX 028b

[SOLVED][ERROR] Device stuck on boot! Error: Boot Image Signature

Guys,
I'm relatively new to flashing recovery and ROMs..
So, sorry if this is a noob question..
I really need urgent help!
I am on V20a (ESA-XXX) and have successfully rooted my phone.
I tried installing CWM using this method..
http://forum.xda-developers.com/showthread.php?t=2180138
I used the unsecure boot provided by gordon0001
http://forum.xda-developers.com/showthread.php?p=39918805&highlight=unsecure#post39918805
After i restarted my phone, it got stuck at boot!!
Its gives the following error and turns of in 5 seconds..
[LG-Security] Error: Boot Image Signature!
The phone doesn't start and does not go into recovery either..
The phone is not even recognised by my PC.. keeps restarting (to error screen) if i connect to pc..
Please, someone help me.. I'm really scared.. I don't want to lose my phone.. :crying:
I read a similar prob, but no solution found..
http://forum.xda-developers.com/showthread.php?t=2223697
PLEASE HELP!!
SOLUTION:
Reflash .kdz via Software Upgrade Mode (hold Power button and Volume - )

Dude, reflashing your phone should work. As long as SW mode is still accessible, your phone isn't dead yet. Follow the instructions on this post http://forum.xda-developers.com/showthread.php?p=35971349 Be freaking sure all necessary drivers are properly installed.
Or you can put your phone in recovery mode (power + vol +) and reinstall the stock rom using recovery LG tools providing your Internet connection is fast and stable
Sent from my LG-P880 using Tapatalk 2

hey dude, i have flashed 7 times exactly since this morning only. and i have gotten that error 3 times of those 7. so it should not be a problem

Thanks!
After a few attempts, was able to go to the s/w upgrade mode.. (power + vol(-) )
Reflashed .kdz and it's all good.. (had to root again)
Actually, i was freaked out more coz it's my new phone and i didn't find others with the problem..
I hope that this thread would help if anyone faces a similar problem in the future..
Thanks for the prompt response, guys!

TechnoBraker said:
After a few attempts, was able to go to the s/w upgrade mode.. (power + vol(-) )
Reflashed .kdz and it's all good.. (had to root again)
Actually, i was freaked out more coz it's my new phone and i didn't find others with the problem..
I hope that this thread would help if anyone faces a similar problem in the future..
Thanks for the prompt response, guys!
Click to expand...
Click to collapse
You don't read a lot, right?...
If I had 100€ for each user that had that same problem...
(thinking about 1€, hummm?... of course not, 100's better)

TechnoBraker said:
Guys,
I'm relatively new to flashing recovery and ROMs..
So, sorry if this is a noob question..
I really need urgent help!
I am on V20a (ESA-XXX) and have successfully rooted my phone.
I tried installing CWM using this method..
http://forum.xda-developers.com/showthread.php?t=2180138
I used the unsecure boot provided by gordon0001
http://forum.xda-developers.com/showthread.php?p=39918805&highlight=unsecure#post39918805
After i restarted my phone, it got stuck at boot!!
Its gives the following error and turns of in 5 seconds..
[LG-Security] Error: Boot Image Signature!
The phone doesn't start and does not go into recovery either..
The phone is not even recognised by my PC.. keeps restarting (to error screen) if i connect to pc..
Please, someone help me.. I'm really scared.. I don't want to lose my phone.. :crying:
I read a similar prob, but no solution found..
http://forum.xda-developers.com/showthread.php?t=2223697
PLEASE HELP!!
SOLUTION:
Reflash .kdz via Software Upgrade Mode (hold Power button and Volume - )
Click to expand...
Click to collapse
But WHY AND HOW did it happen? have you flashed a custom rom now without errors?

GeBoe said:
But WHY AND HOW did it happen? have you flashed a custom rom now without errors?
Click to expand...
Click to collapse
You needed to unlock bootloader first, either "adb reboot oem-unlock" or download terminal emulator, root the phone and type:
su
echo 40000000c8 > /sys/firmware/fuse/odm_reserved
Sent from my rooted P880

I solved the problem flashing back to stock rom.
From this page http://lg-phone-firmware.com/ you may download your original stock rom.
WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.

askinkoc said:
I solved the problem flashing back to stock rom.
From this page http://lg-phone-firmware.com/ you may download your original stock rom.
WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.
Click to expand...
Click to collapse
And once again:
flashing stock is not at all dangerous. it will not brick your device or something else.
Sometimes you even have to re-stock your phone.

Stock is safe!
askinkoc said:
I solved the problem flashing back to stock rom.
From this page http://lg-phone-firmware.com/ you may download your original stock rom.
WARNING: IF YOU FLASHED YOUR PHONE WITH A CUSTOM ROM, NEVER TRY TO FLASH BACK TO AN ORIGINAL STOCK ROM.
Click to expand...
Click to collapse
haha, flashing the stock rom back can never be a problem..
that is the only rom which inherently supposed to be problem-free!

@non4 said:
You needed to unlock bootloader first, either "adb reboot oem-unlock" or download terminal emulator, root the phone and type:
su
echo 40000000c8 > /sys/firmware/fuse/odm_reserved
Sent from my rooted P880
Click to expand...
Click to collapse
just tried this ^^^ worked thanks
Had the exact same problem as TechnoBraker however if you held the power button as the phone turned to "power save" and you timed it perfectly it would start normally and as long as i didnt try to go into recovery mode it was fine

Hello. PLEASE, can anyone help me, I have a LG 4x and I've tried to flash CWM image from here http://forum.xda-developers.com/showthread.php?t=2298420 but I cannot entry after that in Software Update ( Volume - and Power button) and not even with (Volume + Home and Power Button). I get this error [LGE _SECURITY]error: boot image signature
[LGE _SECURITY]5 seconds after power is turned off for power saving
My phone start very well, I can talk from him but I can not make Factory Reset and flash back the stock rom.
Sorry for my english and I hope someone can help me!
Thank you!

alexxutzu said:
Hello. PLEASE, can anyone help me, I have a LG 4x and I've tried to flash CWM image from here http://forum.xda-developers.com/showthread.php?t=2298420 but I cannot entry after that in Software Update ( Volume - and Power button) and not even with (Volume + Home and Power Button). I get this error [LGE _SECURITY]error: boot image signature
[LGE _SECURITY]5 seconds after power is turned off for power saving
My phone start very well, I can talk from him but I can not make Factory Reset and flash back the stock rom.
Sorry for my english and I hope someone can help me!
Thank you!
Click to expand...
Click to collapse
you installed cwm without unlocking bootloader. re-flash 20a/20b (jellybean 4.1.2) kdz, then unlock your bootloader, then install any custom recovery you want/need

Have i go bak to JB anytime?
Flying_Bear said:
you installed cwm without unlocking bootloader. re-flash 20a/20b (jellybean 4.1.2) kdz, then unlock your bootloader, then install any custom recovery you want/need
Click to expand...
Click to collapse
HEy
I have a question:
Have I flash to JB back anyway or can I only Unlock my BL and then it will work?
Sry my English is very bad

mivoe99 said:
HEy
I have a question:
Have I flash to JB back anyway or can I only Unlock my BL and then it will work?
Sry my English is very bad
Click to expand...
Click to collapse
Bootloader unlocking is only available if you're on JB. If your boot image is faulty you need to revert back to official JB.
Sent from my LG-P880 using XDA Premium 4 mobile app

Ok, but I haven't installed a cousom ROM
Omario-242 said:
Bootloader unlocking is only available if you're on JB. If your boot image is faulty you need to revert back to official JB.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I havent' installed a cusotm ROM yet. I have only installed CWM with ROM Manager, but i have already tried to delete the CWM I want to flash it manual.
My ROM is the normal LG P880 ROM JB.
How or have I go back to the normal JB?
Sry for my English I'm german

mivoe99 said:
I havent' installed a cusotm ROM yet. I have only installed CWM with ROM Manager, but i have already tried to delete the CWM I want to flash it manual.
My ROM is the normal LG P880 ROM JB.
How or have I go back to the normal JB?
Sry for my English I'm german
Click to expand...
Click to collapse
German here too
So if I understood you right, you tried to install CWM without unlocking your boot loader? So now you got a boot image error? I'd suggest to try LG Mobile Support Tool and flash V20A/V20B and then unlock Boot loader. Even if you're on "official JB" as of now, installing CWM without unlocked bootloader screwed your boot image and there's no way to do anything without flashing back a kdz.
Sent from my LG-P880 using XDA Premium 4 mobile app

LG Mobil Support Tool doesn't work
Omario-242 said:
German here too
So if I understood you right, you tried to install CWM without unlocking your boot loader? So now you got a boot image error? I'd suggest to try LG Mobile Support Tool and flash V20A/V20B and then unlock Boot loader. Even if you're on "official JB" as of now, installing CWM without unlocked bootloader screwed your boot image and there's no way to do anything without flashing back a kdz.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hey,
I have tried to do the Update to the Firmware by LG Mobile Support Tool but there is a Error every try. I have tried it about ten times but the Update fails every time. What can I do now? :/
There is no Error Code or something.
Can help a factory reset there?
Or should i falsh the Original Recovery with the All-in-One toolkit?

mivoe99 said:
Hey,
I have tried to do the Update to the Firmware by LG Mobile Support Tool but there is a Error every try. I have tried it about ten times but the Update fails every time. What can I do now? :/
There is no Error Code or something.
Can help a factory reset there?
Or should i falsh the Original Recovery with the All-in-One toolkit?
Click to expand...
Click to collapse
Could be due to wrong drivers. Reinstall them and try again.
Sent from my LG-P880 using XDA Premium 4 mobile app

Reinstalled Drivers
Omario-242 said:
Could be due to wrong drivers. Reinstall them and try again.
Sent from my LG-P880 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hey,
I have reinstalled the drivers for my device, but the installation failed again.
What can I do else? :/

[Q] Xperia z not booting after flashing kernel ;(

I am extremely new to root n stuff, i successfully rooted using happy, doomlord binary and was preety happy . flashed few patchs and was happy.
Finally thought i flashing Pure X audio for xperia z and my mistake i saved DoomLord kernal on the same place. i mis selected Doomslord kernel instaed of PureXaudio ;( and finnally when i try hit reboot - it is not booting up
PLZ help !!! what do i need to do to get in to recovery tried power volume up and down , it vibrate but screen doesn't turn on or no progress ;(

Is flash or fast boot mode working properly?
Try to flash kernel again, or flash stock rom thru flashtool

doing it
Bairei said:
Is flash or fast boot mode working properly?
Try to flash kernel again, or flash stock rom thru flashtool
Click to expand...
Click to collapse
IT is not at all switching on , blank screen ;(
i tried to enter TWRP recovery , holding power on and tapping voume up - no go ;(
is there any other way to get in to revcovery ? i am preety new .. yes i am installing flashtool now and should i try tft ROM or can i flash by back up ?? i am not sure

http://forum.xda-developers.com/showthread.php?t=2240614
Sent from my C6603 using xda premium

Trying it .. small query , pl help
gm007 said:
http://forum.xda-developers.com/showthread.php?t=2240614
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
Thanks a lot, i am doing it right now, downloading kernel
But my doubt is phone seem completely dead - when i hold power button it vibrates and red LED blinks, is this normal behavior ??.

no loader found for this device ;(
gm007 said:
http://forum.xda-developers.com/showthread.php?t=2240614
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
Now i am stuck at teh screen where it says 'no loader found for this device flashtool' can't go any further.
My bootloader is locked, should it be unlocked to get this done
please help !!

No you don't need to unlock the boot loader to flash via flash tool'you need the drivers
http://developer.sonymobile.com/services/flash-tool/
you will need to unlock if you want to flash a custom kernel ..
Try using Sony update service sus to repair your phone
http://www.sonymobile.com/gb/tools/update-service/
Sent from my Nexus 7 using Tapatalk 2

Please help. I've just flash DoomLord v13 kernel via CWM: after install the zip file, I choose Reboot to system but my phone does not boot afterward
I push power button, the phone vibrates but does not awake
I connect my phone to usb, the red light blinks only
Please help If anybody has experienced
Thank you in advance

vodanhdaisu said:
Please help. I've just flash DoomLord v13 kernel via CWM: after install the zip file, I choose Reboot to system but my phone does not boot afterward
I push power button, the phone vibrates but does not awake
I connect my phone to usb, the red light blinks only
Please help If anybody has experienced
Thank you in advance
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2229250
Sent from my C6603 using xda premium

fish droid said:
Try using Sony update service sus to repair your phone
http://www.sonymobile.com/gb/tools/update-service/
Click to expand...
Click to collapse
You can't use SUS if you have already flashed your phone with a custom kernel, you can only use flashtool.
Just take a look to the link of gm007.

Xperia z bricked after doom Lord kernel! Help pls
QualQuek said:
You can't use SUS if you have already flashed your phone with a custom kernel, you can only use flashtool.
Just take a look to the link of gm007.
Click to expand...
Click to collapse
I am having the same problem. I have tried everything I know of including fastboot, flash mode, sus, pc companion, and so on. Still my phone won't even blink anymore. It doesn't seem to charge either. I don't know what to do. Someone please help! I was running creskole romantic and goo manager recommended the install of the doom Lord kernel v.18. Sadly, my phone never rebooted. Complete black screen.

Flash via flashtool bro.and dont use custom kernel ,use the stock kernel of doormlord one if ur locked bootloader.
Sent from my C6603

hOtsacE22 said:
Flash via flashtool bro.and dont use custom kernel ,use the stock kernel of doormlord one if ur locked bootloader.
Sent from my C6603
Click to expand...
Click to collapse
You can't flash unsigned kernels on locked bootloaders!! Just stock kernel.sin from identical FW!
Sent from my C6603 using XDA Premium 4 mobile app

PLEASE HELP i flash DooMKernel via cwm after reboot mobile not turn on push power button, the phone vibrates but does not awake
then i flash ftf via flashtool its turn on but again cant use any of the kenerl ..i have unlocked boot loader i tried to clean cash dalvik etc but always get soft bricked >PLEASE HELP
---------- Post added at 04:04 PM ---------- Previous post was at 03:06 PM ----------
Ronco87 said:
I am having the same problem. I have tried everything I know of including fastboot, flash mode, sus, pc companion, and so on. Still my phone won't even blink anymore. It doesn't seem to charge either. I don't know what to do. Someone please help! I was running creskole romantic and goo manager recommended the install of the doom Lord kernel v.18. Sadly, my phone never rebooted. Complete black screen.
Click to expand...
Click to collapse
same with me .........i try to flash it via cwm but after reboot mobile not turn on then i flash its original stock 2.67 kernel via flashtool my mobile turn on but wifi didnt works ..
then i flash
eXistenZ v4.3.5 ultra edition wifi now working but again : but cant install any of the kernels from doom kernel and others please help

my xperia Z cant turn on
Please help. I've just flash DoomLord v13 kernel via CWM: after install the zip file, I choose Reboot to system but my phone does not boot afterward
I push power button, the phone vibrates but does not awake
I connect my phone to usb, the red light blinks only
will it boot if i flash once again the latest firmware
Please help If anybody has experienced
Thank you in advance

raveldom said:
Please help. I've just flash DoomLord v13 kernel via CWM: after install the zip file, I choose Reboot to system but my phone does not boot afterward
I push power button, the phone vibrates but does not awake
I connect my phone to usb, the red light blinks only
will it boot if i flash once again the latest firmware
Please help If anybody has experienced
Thank you in advance
Click to expand...
Click to collapse
Is your bootloader unlocked? If not, you cannot run a custom kernel.
Flashing just the stock kernel for your firmware with Flashtool should fix your problem.
Sent from my C6603 using Tapatalk

kingvortex said:
Is your bootloader unlocked? If not, you cannot run a custom kernel.
Flashing just the stock kernel for your firmware with Flashtool should fix your problem.
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
yes it is unlocked,i try to look everywhere on the internet and finally resolved d issues with d phone

problem!!
kernel not getting flashed through cwm and xperia z is rebooting again and again.what to do ?

salujapulkit said:
kernel not getting flashed through cwm and xperia z is rebooting again and again.what to do ?
Click to expand...
Click to collapse
Flash the img file from fastboot

Xperia Z not booting up after flashing
Hello guys, I badly need help in fixing my Xperia z c6603 device. I flashed the device using the ftf file from xperifirm and now my device does not boot up and stuck in blank screen.
Kindly assist.

[Q] Help flashed tilal6991's CM 10.2 [4.3] [XPERIA T] cant go back to cm 10.1

Hello everyone
I am a noob.
I have just recently flashed tilal6991's CM 10.2 [4.3] [XPERIA T] rom onto my Xperia T. I know it is a working progress and it works really fast on my phone.
I had decided that after trying it out I would wait till a nightly came out for it. Only thing is I can no longer access CWM by starting up phone and repeatedly pressing down volume. it justs keep screen flickering on a blank screen until I hold up volume and power button to reboot phone.
Can someone please tell me an idiot proof process of reinstalling cm 10.1 onto the phone?
I used CWM to install teh rom.
Many thanks in advance

Just flash a stock ftf using flashtool.
Our flash a stock kernel (doomkernel is good) then flash a stock based custom Rom in recovery (I suggest mine Rom-assaye)
You cannot repair in pccompanion because you have unlocked your bootloader
Sent from my LT30p using xda premium

gregbradley said:
Just flash a stock ftf using flashtool.
Our flash a stock kernel (doomkernel is good) then flash a stock based custom Rom in recovery (I suggest mine Rom-assaye)
You cannot repair in pccompanion because you have unlocked your bootloader
Sent from my LT30p using xda premium
Click to expand...
Click to collapse
Thanks for the quick reply. downloading flash tool now. I will give your rom a go.

Do I need to download the ftf from flashtools website? I noticed they have 9.1.A.1.140 Customized CE1 firmware.

No, just one from the all in one thread, but that one seems fine.
Make sure you use the flash tool from the first post in the dev section
Sent from my LT30p using xda premium

you dont need to flash stock FTF
just flash this kernel via flashtool
http://goo.im/devs/tilal6991/kernels/mint/boot-cm-10.1-test-28072013-take2.img
and you will be able to enter recovery and then flash what you need... this way is more quicker..

Apologies, I misread the op, I thought he wanted to go back to stock.
Yes, flashing a kernel (doomkernel will do) with recovery then the . Zip for cm10 will do the trick much quicker.
Edit
Or flash the kernel then restore the backup of your cm10 Rom that you made before flashing a new Rom
Sent from my LT30p using xda premium

thanks for all the help guys.
I have a new problem. the phone will not stay in fast boot mode and fast tool just keeps saying awaiting device. i dont know what to do. I hold down power and volume up buttons when putting the micro usb in. I get the 3 vibration in a row and then i let go of buttons. blue light comes on for a few seconds and then goes off.
Any ideas?

open flashtool and select flash icon then fastboot mode
turn off your phone hold power +volume down till you get 3 vibrations on a row
now connect the phone by holding only up volume when connecting cable
then select SELECT kernel to flash switch to IMG extension and select kernel after 5 second it should be flashed
now turn on your phone go to recovery and flash what you want

Guys you are all awesome.
finally got it sorted. took me til 2230 GMT. It was the cursed Windows 8. it was not letting me install sony fastboot drivers. once i switched off the function to stop me installing my own drivers, I was able to install fastboot drivers and 30 secs later I was in CWM.
Once again guys you are awesome.

[Q] Xperia SP struck on sony logo. Please help!!

Hi guys, big fan here. I have been hanging around here for quite some time now but this is my first post
I was trying to put CM11 on my phone. After taking a backup in TWRP when i tried to put CM11 there suddenly the logs declared that system partition cannot be read. I am on a unlocked boot loader. I did try to use a backup but the same error that system partition is not readable popped up. Then I rebooted the phone only to find that its forever stuck on the Sony logo with a red light. I read up and found that I can flash a .ftf file to do things right. Just now I found that my phone stays in flash mode only for a small time and then again starts to show that crap Sony splash screen.
Can some kind developer or enthusiast like myself please help me??

ithesatyr said:
Hi guys, big fan here. I have been hanging around here for quite some time now but this is my first post
I was trying to put CM11 on my phone. After taking a backup in TWRP when i tried to put CM11 there suddenly the logs declared that system partition cannot be read. I am on a unlocked boot loader. I did try to use a backup but the same error that system partition is not readable popped up. Then I rebooted the phone only to find that its forever stuck on the Sony logo with a red light. I read up and found that I can flash a .ftf file to do things right. Just now I found that my phone stays in flash mode only for a small time and then again starts to show that crap Sony splash screen.
Can some kind developer or enthusiast like myself please help me??
Click to expand...
Click to collapse
Hi there!
I can help you bascially you just messed up the partition. Don't worry it can be corrected easily. Download .ftf file for your Xperia Sp model (Google it).
press the back yellow button situated downwards inside the cover. When you do that does it vibrate three times? Please let me know the exact situation so that I can help

Tech N You said:
Hi there!
I can help you bascially you just messed up the partition. Don't worry it can be corrected easily. Download .ftf file for your Xperia Sp model (Google it).
press the back yellow button situated downwards inside the cover. When you do that does it vibrate three times? Please let me know the exact situation so that I can help
Click to expand...
Click to collapse
Thanks for replying. Yeah, it does vibrate thrice, that's how I turned it off for the first time. I downloaded the ftf file. Also, if I put it in flash mode, after nearly a minute the led turns red and the Sony logo is back.

Do you CWM or TWRP installed? Try to boot in CWM when phone vibrates during start keep pressing volume up button until you see CWM menu
Sent from my C5302 using XDA Free mobile app

Tech N You said:
Do you CWM or TWRP installed? Try to boot in CWM when phone vibrates during start keep pressing volume up button until you see CWM menu
Sent from my C5302 using XDA Free mobile app
Click to expand...
Click to collapse
i tried that but it dosen't work..

Which operating system do you use??
Sent from my Xperia SP using XDA Free mobile app

ithesatyr said:
i tried that but it dosen't work..
Click to expand...
Click to collapse
Ok. Download the stock kernel for your Xperia device and place it inside Flashtool folder . Make sure your device is switched off and open Flashtool on your PC. Connect your phone by holding VOLUME DOWN Button until green LED lights up. You have your device connected in fastboot mode now. As you said that your phone restarts after a minute so you gotta be fast , quickly hit the smart lighting button and select Fastboot mode on Flashtool and select kernel to flash. Once the kernel starts flashing wait for it to finish and voila you're done.
Warning - I will not be blamed for brick or dead devices, it is a method that is risky so proceed at your own risk***
Follow this thread to get your stock kernel for device.. ---> http://forum.xda-developers.com/xperia-sp/general/root-xperia-sp-one-click-t2834225

Tech N You said:
Ok. Download the stock kernel for your Xperia device and place it inside Flashtool . Make sure your device is switched off and open Flashtool on your PC. Connect your phone by holding VOLUME DOWN Button until green LED lights up. You have your device connected in fastboot mode now. As you said that your phone restarts after a minute so you gotta be fast , quickly hit the smart lighting button and select Fastboot mode on Flashtool and select kernel to flash. Once the kernel starts flashing wait for it to finish and voila you're done.
Warning - I will not be blamed for brick or dead devices, it is a method that is risky so proceed at your own risk***
Follow this thread to get your stock kernel for device.. ---> http://forum.xda-developers.com/xperia-sp/general/root-xperia-sp-one-click-t2834225
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Man.. thats a thriller.. ggod help me

Farooq95 said:
Which operating system do you use??
Sent from my Xperia SP using XDA Free mobile app
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windows on the pc. 4.3 android on the phone.

ithesatyr said:
Man.. thats a thriller.. ggod help me
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Don't worry, which kernel are you presently using?

Windows 8 ???
then follow this
http://forum.xda-developers.com/xpe...bootloader-t2153261/post38878089#post38878089
http://doomlord.xperia-files.com/download.php?dlid=Rmxhc2h0b29sLWRyaXZlcnMtMS41LTIwMTQwMzE4
download that above driver and follow the post
Sent from my Xperia SP using XDA Free mobile app

Farooq95 said:
Windows 8 ???
then follow this
http://forum.xda-developers.com/xpe...bootloader-t2153261/post38878089#post38878089
http://doomlord.xperia-files.com/download.php?dlid=Rmxhc2h0b29sLWRyaXZlcnMtMS41LTIwMTQwMzE4
download that above driver and follow the post
Sent from my Xperia SP using XDA Free mobile app
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Click to collapse
I did that already to unlock my bootloader. I have access to a linux system. Do you think it'll be better if i use it???

Thanks guys. The phone is up again. Here's what I did.
1. Tried Fastboot mode and it worked.
2. Downloaded Doomkernel.
3. Flashed using flashtool.
4. After flashing this kernel I was able to boot into recovery (philz touch).
5. System partition still couldn't mount. I read somewhere that formatting it can help. As does unmounting everything else.
6. Mounted system and flashed Existenz rom again.
XDA rocks. thanks everyone.:cyclops:

ithesatyr said:
Thanks guys. The phone is up again. Here's what I did.
1. Tried Fastboot mode and it worked.
2. Downloaded Doomkernel.
3. Flashed using flashtool.
4. After flashing this kernel I was able to boot into recovery (philz touch).
5. System partition still couldn't mount. I read somewhere that formatting it can help. As does unmounting everything else.
6. Mounted system and flashed Existenz rom again.
XDA rocks. thanks everyone.:cyclops:
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Click to collapse
That's great If I helped press thanks