Develop Bugs

[Q] Stuck on boot loop

I tried a search but didn't find much of any relevance to my Arc's problem.
My Arc was getting quite laggy so I decided to wipe and put a custom ROM on. I rooted, then unlocked the bootloader and managed to put on CWM using DoomLord's kernel. Everything fine up until here.
Then, mistakenly, I tried to put stable CM7 on without updating the stock ROM. I was still on 3.0 (2.3.3) something. Well, after that it got stuck in a boot loop with the SE and CM7 logos just coming up and restarting.
I then tried the Flashtool with a stock uptodate 4.0 something firmware. It flashed successfully, but it still was stuck in the loop, albeit now without the CM7 logo. I then tried the FTA unbricking tool for repairing the trim area but it still stayed in the boot loop.
What else can I do? Maybe there is a driver problem and that is why even after using Flashtool it still doesn't boot?
I would be very grateful if someone could help me on this.

You have to flash FXP's kernel and not DooMKernel.

But I also tried to flash a stock rom and that didn't work also.
EDIT: I flashed stock ROM again, still didn't boot. Installed DoomLord kernel and then arconium and it still doesn't boot.
EDIT 2: In CWM Recovery if I try to wipe data, it says this:
"E:format_volume: no MTD partition "userdata"
Has anyone got a fix for this?
It would be much appreciated.

can you charge your phone now?

Yep, I can charge the phone.

it means your kernel is still working....
then have it fully charged, then try to flashing again.
some tips:
1. always have latest flashtools
2. always have your phone fully charged b4 flashing.
3. proceed flashing carefully. if u miss one thing, then trouble come.
4. have cache and dalvik cache cleaned after flashing a kernel or Rom.
good luck mate...

gogo415 said:
it means your kernel is still working....
then have it fully charged, then try to flashing again.
some tips:
1. always have latest flashtools
2. always have your phone fully charged b4 flashing.
3. proceed flashing carefully. if u miss one thing, then trouble come.
4. have cache and dalvik cache cleaned after flashing a kernel or Rom.
good luck mate...
Click to expand...
Click to collapse
No luck with previous firmwares so I'll try to flash the latest .62 stock ROM and then see.
I'll let you know how I get on. Thanks!

Well lads, I managed to get it working by flashing the LT18i firmware (4.0.2.A.0.42_CE). Now I just need to go back to the drawing board and try to get CM7 on there.
Thanks for all the help! I'll update this thread with any experiences.

I've managed to do it. Installed latest .62 firmware, flashed CM7 kernel, flashed 7.2 ROM and then GAPPS.
I don't know why it took me two days to bring the phone back from the dead.

ZAnwar said:
I've managed to do it. Installed latest .62 firmware, flashed CM7 kernel, flashed 7.2 ROM and then GAPPS.
I don't know why it took me two days to bring the phone back from the dead.
Click to expand...
Click to collapse
hi, i came up with the same question:
E:format_volume: no MTD partition "userdata"
and my device is moto xt502
could you be so kind to give some details how you fix it
thank you very much

I am having the same problem too..please help! i flashed cm7 kernel n followed the instructions very carefully

ilamaan said:
I am having the same problem too..please help! i flashed cm7 kernel n followed the instructions very carefully
Click to expand...
Click to collapse
I followed the instructions too, though they are not so much noob-friendly (and neither are the people on the forums, it seems...). FXP is not responding (actually, they rarely respond to anything, they usually just post when new release is out), other people either don't know how to fix it, because they haven't experienced such issues, or they are just hostile because you're "a an annoying noob". Anyway... first time after trying to flash 64 baseband on 107 or 106 release, I got stuck on logo, then flashed back to .42 and it worked. Now, while updating to 108, I tried to flash the 64 libraries and patch, but it didn't work. Got back to .42, but this time nothing happened. Still stuck on logo. And when I try to restore data, it says:
E:format_volume: no MTD partition "userdata"
Error while formatting /data!
I think I'll go back to stock... love CM, but hate the poor/no help of the developers...

try these
flash new firmware using flashtool.
after flash.turn on your device.
enable uknown source n usb debug
then turn off your fon
flash baseband 64
then turn on your fon
put fxp108 updated-kang,gaps,baseband 64 libs on your memory card,
then turn off your fon
flash fxp kernel fastboot flash boot boot.img
after flash turn on your fon..go to recovery
formated factory reset,wipe cache,clear dalvik cache,wipe betry stats..
flash update cm7.update.zip,gaps.zip,baseband64libs.zip
reboot your fon..wait 2 or 3 mint..done

My thanks goes to you. I was hoping to avoid full wipe, but I don't care anymore, since I brought my phone back to life. I skipped these steps, though:
beranchoi said:
flash baseband 64
flash baseband64libs.zip
Click to expand...
Click to collapse
...because I went to check which baseband my phone was after flashing Global .62, and it said I was on -64, so it was no more necessary. For all of you having trouble with booting, follow the instructions given.
And now back to restoring all those apps

hey guys, can you post the link to that stock firmware, baseband and libs? maybe I've downloaded something wrong :/
btw. is there still that bug with a dark screen after locking phone?

lemon66 said:
hey guys, can you post the link to that stock firmware, baseband and libs? maybe I've downloaded something wrong :/
btw. is there still that bug with a dark screen after locking phone?
Click to expand...
Click to collapse
This is the link to the stock 4.0.2.A.0.42.. flash it using flashtool.. http://www.multiupload.com/W3B7BOKUXQ
Everything you need for flashing FXP is on his signature, including bb .64 (to be flashed with flashtool - doesn't erase a thing).. then download FXP (latest is 108) and inside the zip file you'll see boot.img, which contains the special kernel (to be flashed using fastboot, not flashtool).
Also there's no dark screen bug in the latest releases, certainly not in FXP 107 and 108, which I'm using now.

Please help!
beranchoi said:
try these
flash new firmware using flashtool.
after flash.turn on your device.
enable uknown source n usb debug
then turn off your fon
flash baseband 64
then turn on your fon
put fxp108 updated-kang,gaps,baseband 64 libs on your memory card,
then turn off your fon
flash fxp kernel fastboot flash boot boot.img
after flash turn on your fon..go to recovery
formated factory reset,wipe cache,clear dalvik cache,wipe betry stats..
flash update cm7.update.zip,gaps.zip,baseband64libs.zip
reboot your fon..wait 2 or 3 mint..done
Click to expand...
Click to collapse
Hey, this is my first post on here. I am new to android and just got an arc a few days ago. Even before i got it i was trying to figure out how to mod it. I am reasonably good at computers but a lot of the stuff i read on these forums is beyond me.
I have done my best to root and install CM7 on my arc but i have failed yet again.
I finally got it rooted and was all happy until when i tried to install CM7, all i can get to is the boot screen, but although the little android on the skateboard is very cool, i wish i could get it going!
So because I dont really understand the list of instructions you posted in this quote, i was hoping you could kind of translate into noob-speak. I still dont feel like i completely understand 'flashing'. In your instructions you say to "flash baseband 64" and that is the main point where I am stuck i think. Do you use a certain program (flashtool?) for this? or do it through a terminal window on the PC.
Also links to all the files mentioned would be awesome, its hard to find proper links with multiupload down and that kind of thing. Also with the rate this kind of tech evolves, things get outdated to quickly.
Please help! At the moment i have (i think) successfully returned my arc to the stock firmware using flashtool. Although i did this twice because i re-tried flashing CM7 and failed again. And the second time i couldnt seem to select LTI5i as the device to flash too, but LTI8i is what i used and it appears to have worked. So any help with that little conundrum would also be appreciated!
Cheers for any help given, I am so desperate to get this mod going as i have spent a solid 10+ hours trying already.

your bootloader unlock?right?
which kernel u use right now?

@tehknowitallnoob, I can lead you through the whole flashing process, if you want to, but only on Friday after around 9 pm GMT +1, since I don't have the time to do it earlier.
Sent from my LT15i (Xperia arc) on CM7

Try this:
Reflash back to stock ROM with a flashtool.
Then again flash the cm7 or try cm9
-cheers

{Q} Help flashing P.A.C.man rom!

Hello again guys, I installed LuPuS v8 JB Kernel on my phone (I had 4.0.2.A.0.58 Enhanced Firmware (Gingerbread) installed) then I went to CWM to flash the .zip with the wifi modules and G.Apps but when I rebooted I got a bootloop. what I have to do to correctly install it? Please guide me since I'm kinda newbie to this of unlocked bootloaders and kernels :/ (I'm trying to install PACman rom and followed the FAQ guide but...)
EDIT: Forgot to add, my PLAY is an r800a(i) GSM btw, I have to take off the SDcard to enter to the Kernel menu, idk if this is normal

xkeita said:
Hello again guys, I installed LuPuS v8 JB Kernel on my phone (I had 4.0.2.A.0.58 Enhanced Firmware (Gingerbread) installed) then I went to CWM to flash the .zip with the wifi modules and G.Apps but when I rebooted I got a bootloop. what I have to do to correctly install it? Please guide me since I'm kinda newbie to this of unlocked bootloaders and kernels :/ (I'm trying to install PACman rom and followed the FAQ guide but...)
EDIT: Forgot to add, my PLAY is an r800a(i) GSM btw, I have to take off the SDcard to enter to the Kernel menu, idk if this is normal
Click to expand...
Click to collapse
After you flash the Rom reboot the phone and just let it fully boot. After that you can go back to CWM and flash the WiFi modules and other add-ons

You need to boot into the kernel's recovery and set it to jb mode or ics depending on your rom. Then make sure your rom and gapps don't exceed the system partition size, which it most likely did if you flashed the full gapps package as well.
The default recovery for the lupus jb kernel is TWRP, if you load into another CWM recovery it most likely did not flash to the correct partition arrangement that lupus kernel use therefore the rom can't boot.
Sent from XDA app

Sounds like you didn't wipe data
So go into cwm and wipe cache,data,delvick and try rebooting then
sent from my Sony Ericsson Xperia Play™(r800x) Running Slimbean 3.0 using Tapatalk 2™

crazymonkey05 said:
Sounds like you didn't wipe data
So go into cwm and wipe cache,data,delvick and try rebooting then
sent from my Sony Ericsson Xperia Play™(r800x) Running Slimbean 3.0 using Tapatalk 2™
Click to expand...
Click to collapse
These are the steps I did
1.- Flash the 4.0.2.A.0.58 Enhanced (2.3.4 firmware)
2.- Flash the LuPuSv8 JB Kernel via flashtools
3.- Take out the SDcard (I can't access to kernel menu without taking it out)
4.- Access Kernel menu then go into recovery mode
5.- Wipe data/cache/davlik
6.- Flash p.a.c.man jb
7.- Reboot
And then it bootloops and stays like that (i left it alone and it stayed like that for about 20 or 30 minutes)
I also wiped data/cache and davlik after flashing the rom, but got the same results, maybe I need a vendor unlocked firmware like in Turbo Kernel? I will try that...
Edit: Flashed the vendor unlocked firmware then wiped cache and data then installed the PACman rom but got bootloop again, maybe I should try with another kernel...

xkeita said:
These are the steps I did
1.- Flash the 4.0.2.A.0.58 Enhanced (2.3.4 firmware)
2.- Flash the LuPuSv8 JB Kernel via flashtools
3.- Take out the SDcard (I can't access to kernel menu without taking it out)
4.- Access Kernel menu then go into recovery mode
5.- Wipe data/cache/davlik
6.- Flash p.a.c.man jb
7.- Reboot
And then it bootloops and stays like that (i left it alone and it stayed like that for about 20 or 30 minutes)
I also wiped data/cache and davlik after flashing the rom, but got the same results, maybe I need a vendor unlocked firmware like in Turbo Kernel? I will try that...
Edit: Flashed the vendor unlocked firmware then wiped cache and data then installed the PACman rom but got bootloop again, maybe I should try with another kernel...
Click to expand...
Click to collapse
Do as above but after step 5 you need to go to mounts & storage and format Data/Cache & System (IMPORTANT DO NOT FORMAT ANYTHING ELSE):good:
Then flash p.a.c.man JB

tallman43 said:
Do as above but after step 5 you need to go to mounts & storage and format Data/Cache & System (IMPORTANT DO NOT FORMAT ANYTHING ELSE):good:
Then flash p.a.c.man JB
Click to expand...
Click to collapse
I did what you said but it keeps bootlooping @[email protected]

Why don't u use turbo kernel and start the process again...and no is not normal to take out your memory card to enter boot menu
Sent from my R800i using xda app-developers app

Yep, flashed turbo kernel v3.1 and it worked! Damn that lupus kernel made me waste many precious time...

xkeita said:
Yep, flashed turbo kernel v3.1 and it worked! Damn that lupus kernel made me waste many precious time...
Click to expand...
Click to collapse
Cool:good:

xkeita said:
Yep, flashed turbo kernel v3.1 and it worked! Damn that lupus kernel made me waste many precious time...
Click to expand...
Click to collapse
flashing that ftf was ur problem. U needed to flash the ftf with unlocked partitions. Same thing you shpoud of also needed to do for turbo kernel then format system and data partitions in either CWM or via fastboot, then flash kernel.
Sent from my GT-I9300 On Official JB

@tallman43 thx for the help bro (Y)

wedgess said:
flashing that ftf was ur problem. U needed to flash the ftf with unlocked partitions. Same thing you shpoud of also needed to do for turbo kernel then format system and data partitions in either CWM or via fastboot, then flash kernel.
Click to expand...
Click to collapse
I flashed the FTF with unlocked partitions played with the phone for about 30 secs, then flashed kernel, went to kernel menu then formated system, data, cache and davlik via CWM then flashed the rom, but that ended in bootloop, did the same with turbo kernel and it worked.

easy fix dont use Pac Rom its junk
xkeita said:
Hello again guys, I installed LuPuS v8 JB Kernel on my phone (I had 4.0.2.A.0.58 Enhanced Firmware (Gingerbread) installed) then I went to CWM to flash the .zip with the wifi modules and G.Apps but when I rebooted I got a bootloop. what I have to do to correctly install it? Please guide me since I'm kinda newbie to this of unlocked bootloaders and kernels :/ (I'm trying to install PACman rom and followed the FAQ guide but...)
EDIT: Forgot to add, my PLAY is an r800a(i) GSM btw, I have to take off the SDcard to enter to the Kernel menu, idk if this is normal
Click to expand...
Click to collapse
use slimbean !takes less room use it with lupus kerenel jb 480 rom.
---------- Post added at 02:49 PM ---------- Previous post was at 02:00 PM ----------
Just want to tell you that your kernels are by far the best. But the PAC man rom and the Paranoid hmm Dont work I cant get them to ever boot on my R800x CDMA
Keep up the hard work.

[Q] DooMLoRD....

Good morning fellow Xperia gamers.
After thinking for a few years I want to use the doomlord kernel.
Could one of you please awnser the following questions?
R800i running 2.3.4 Build: 4.0.2.A.0.42
- What would be the right kernel to use with this firmware? (links would be welcome, scared to flash the wrong one.)
- I have installed custom recovery will this cause any trouble as Doom has one included?
- Doom's kernel comes pre-rooted. My phone is already rooted, will this cause any trouble?
- Will flashing a kernel cause me to lose all data on the phone?
Or even better, should I wipe all data before flashing?
Also if possible, could anyone who has done this before please write down the steps to install this kernel?
Is there anything else important Iam missing here that could cause trouble?
PS: Would it be possible to "hotboot" the kernel first?
Kind regards, Stefan.

Angry [Q] DooMLoRD....
Make sure you have unlocked bootloader!! Do Not Blame Me If You Mess Up Your Device !!
BACK UP EVERYTHING!!
What would be the right kernel to use with this firmware? (links would be welcome, scared to flash the wrong one.)
You already answered this DoomLord GB kernel http://forum.xda-developers.com/showthread.php?t=1176502 or any GB kernel
- I have installed custom recovery will this cause any trouble as Doom has one included?
No overrides any recovery you have
- Doom's kernel comes pre-rooted. My phone is already rooted, will this cause any trouble?
No
- Will flashing a kernel cause me to lose all data on the phone?
No but alway's backup everything it is first thing you should do!!
Or even better, should I wipe all data before flashing?
Not If you want to keep your current rom and data
Instruction's how to fastboot a kernel
(1) Download Doom kernel .boot img place in folder Windows/Flashtool/Firmware
View attachment 1759393
(2) Press lightening bolt
(3) Select Fastboot mode
(4) Connect phone in Fastboot mode (Hold search) while connecting usb to computer
(5) Choose your kernel in Flashtool/Fastboot menu that you put in firmware folder of flashtool earlier
(6) Wait -until finished 10 seconds tops
(7) Done! switch phone on boot to cwm wait for vibrate/blue light press back button for DoomKernel (some recoveries press volume down not DoomKernel)
When you have installed DoomLord kernel boot into it and flash the wifi moduals they are in his post (place them on SD card and press install from cwm) other wise you will not have any wifi
YOU DO NOT NEED TO DO THIS PART UNLESS CHANGING ROMS
(Only do this part If you want to install another rom or re-install 2.3.4
wipe cache/data/advanced dalvik cache Mounts & Storage format data /cache /system)
After installing DoomKernel Flash 2.3.4 ftf in flashtool( if that is the rom you want) when you flash your ftf exclude flashing kernel in box on right (UNDER EXCLUDE) because if not this will overwrite DoomKernel
Follow the links in my signature for very good in depth guides

Thanks a lot!
Now running the DooMLoRD kernel.
First I did hotboot the kernel just to be safe it works.
(Loved the bootsplash so much I just had to flash it at once after checking it for 5 min.)
I will stay with stock rom, thanks again for writing this all down.
- A few more questions if I may, could anyone link me to the most recent stock FTF file for my play?
(R800i, should support the Dutch language and GSM signal.)(Or would you need more info to point to the right file?)
- Does the stock FTF file contain the stock kernel aswell?
As in, will flashing a stock FTF return me to stock kernel?
Would this also wipe the wifi modules?
Kind regards, Stefan.

Thaevil0ne said:
Thanks a lot!
Now running the DooMLoRD kernel.
First I did hotboot the kernel just to be safe it works.
(Loved the bootsplash so much I just had to flash it at once after checking it for 5 min.)
I will stay with stock rom, thanks again for writing this all down.
A few more questions if I may, could anyone link me to the most recent stock FTF file for my play?
(R800i, should support the Dutch language and GSM signal.)(Or would you need more info to point to the right file?)
Does the stock FTF file contain the stock kernel aswell?
As in, will flashing a stock FTF return me to stock kernel?
Would this also wipe the wifi modules?
Kind regards, Stefan.
Click to expand...
Click to collapse
Glad to see it worked
Not sure if this is up to date but try here http://forum.xda-developers.com/showthread.php?t=1589399
Does the stock FTF file contain the stock kernel as well? YES
As in, will flashing a stock FTF return me to stock kernel?YES UNLESS YOU TICK NOT TO FLASH KERNEL
Would this also wipe the wifi modules?YES
Have a look in my signature there is a couple of very good guides just bookmark them:good:

tallman your good
You know your stuff make sure you hit the thanks button for him

[Q] CM 9.1 crashes continiously

Dear Community,
this is my first post on XDA-devloppers.
I ask you for help as y have a serious promlem with CM 9.1 on my xperia arc.
I flashed CM on my phone using the latest stable rom downloaded from the official cyanogenmod website (cm-9.1.0-anzu.zip)
Everything worked perfectly and i was delightet.
Unfortunately, after two days my phone crashed.
By crashed i mean that it first reacted very slow then froze. After this, the screen went black (backlight on) an then dark.
no button could get me back to lockscreen.
then suddenly the phone rebootet.
this happened every time about one minute after booting my phone.
As the problem didn't seem to get away i decided to reflash it:
wipe SD
delete davlik cache
reseting to factory
and then istalling the same rom and gapps from zip
everything worked fine again, but after one day i got the same problem again.
what can I do to fix this?
I would appreciate any kind of help
and excuse me if this isn't the right forum (search also, didn't help)
sincerly,
PraetorAce

You might want to try FXP's release:
http://forum.xda-developers.com/showthread.php?t=1356685
僕のLT18iから送られてきた

popthosegaskets said:
You might want to try FXP's release:
http://forum.xda-developers.com/showthread.php?t=1356685
僕のLT18iから送られてきた
Click to expand...
Click to collapse
thank you!
but which version should I take and how do I flash it? (just copy on SD and then install from zip?)

PraetorAce said:
thank you!
but which version should I take and how do I flash it? (just copy on SD and then install from zip?)
Click to expand...
Click to collapse
You can try the nightly versions if the stable doesn't work for you.
Take out the boot.img inside the ROM zip and flash with fastboot. Then put ROM zip onto SD card and flash with CWM.
僕のLT18iから送られてきた

I tried a few roms and it didn't work.
with the latest nightley version from cyanogenmod website gapps wans't installed properly and my home button didn't work.
and the roms I tried from the link you gave me abortet the installation.
i always flashed the kernel (boot.img) via flashtool and then used CWM to: 1 wipe davlic cache, 2 reset to factory and 3 install from zip
will it maybe work with odin (or is odin only for samsung devices?)
thnx

PraetorAce said:
I tried a few roms and it didn't work.
with the latest nightley version from cyanogenmod website gapps wans't installed properly and my home button didn't work.
and the roms I tried from the link you gave me abortet the installation.
i always flashed the kernel (boot.img) via flashtool and then used CWM to: 1 wipe davlic cache, 2 reset to factory and 3 install from zip
will it maybe work with odin (or is odin only for samsung devices?)
thnx
Click to expand...
Click to collapse
Odin is for Samsung devices only. If CM9.1 doesn't work for you then you might want to try CM10.
僕のLT18iから送られてきた

[q] my xperia play is stuck on bootloader after flashing kernels

Guys i really need help, I'm using an xperia play and i had just unlocked the bootloader and then flashed a the trueancestors ics rom and the LuPuS_zeus_Stock-gB+iCsv7-full kernel. Now it turns out that i didnt like the rom so i put it back to stock, still with the lupus kernel. Everything was working however i wanted to have the doomkernel v14. So i flashed the doomkernel and it was working however the wifi had erroros so i changed back to the lupus kernel. Again everything was working fine now. I then found out how to fix the wifi problem on doomkernelv14 so refrlashed that kernel. Before i reflashed the kernel i deleted the trueancestors isc rom as i didnt like it so i thought it would be ok. After the flash i tried to reboot the device, and it was stuck on the bootloader for doomkernel, not in a bootloop just stuck at doomkernel bootloader. I tried to fix this by going to recovery (clockwork mod) and then did a factory reset, wiped the cache and data and the dalvik cache as i saw these online for instructions on how to fix this problem. Still i had the same problem, stuck at bootloader. So i tried somthing different and reinstalled the trueancestors ics rom, and tried to reboot the xperia play, again stuck at bootloader. Im sorry if this was a bit long but I AM LITTRALLY BEGGING FOR SOME HELP! Please make a suggestion as to how i can fix this ASAP. Can it be fixed?Thank you for you Advice it is very much aprecciated. Ive posted this somewhere else in which i couldnt find but i really need help on this, please can anyone help. :crying:

you shouldn't post a like or not like any developer handmake. try back to a stock..

Mushtaqs said:
Guys i really need help, I'm using an xperia play and i had just unlocked the bootloader and then flashed a the trueancestors ics rom and the LuPuS_zeus_Stock-gB+iCsv7-full kernel. Now it turns out that i didnt like the rom so i put it back to stock, still with the lupus kernel. Everything was working however i wanted to have the doomkernel v14. So i flashed the doomkernel and it was working however the wifi had erroros so i changed back to the lupus kernel. Again everything was working fine now. I then found out how to fix the wifi problem on doomkernelv14 so refrlashed that kernel. Before i reflashed the kernel i deleted the trueancestors isc rom as i didnt like it so i thought it would be ok. After the flash i tried to reboot the device, and it was stuck on the bootloader for doomkernel, not in a bootloop just stuck at doomkernel bootloader. I tried to fix this by going to recovery (clockwork mod) and then did a factory reset, wiped the cache and data and the dalvik cache as i saw these online for instructions on how to fix this problem. Still i had the same problem, stuck at bootloader. So i tried somthing different and reinstalled the trueancestors ics rom, and tried to reboot the xperia play, again stuck at bootloader. Im sorry if this was a bit long but I AM LITTRALLY BEGGING FOR SOME HELP! Please make a suggestion as to how i can fix this ASAP. Can it be fixed?Thank you for you Advice it is very much aprecciated. Ive posted this somewhere else in which i couldnt find but i really need help on this, please can anyone help. :crying:
Click to expand...
Click to collapse
When switching kernels with different partition layout you have to delete data and system partition in fastboot mode.
I'm lazy to type again so here is a link where it is explained already:
http://forum.xda-developers.com/showthread.php?t=1849536&page=100
You can prevent future problems by wiping data and system partittion from CWM and THEN flash new kernel that have different partittion layout

Bakisha said:
When switching kernels with different partition layout you have to delete data and system partition in fastboot mode.
I'm lazy to type again so here is a link where it is explained already:
http://forum.xda-developers.com/showthread.php?t=1849536&page=100
You can prevent future problems by wiping data and system partittion from CWM and THEN flash new kernel that have different partittion layout
Click to expand...
Click to collapse
I havent tried this yet,becuase i need my dad to allow flash tool to work (Parental controls ffs -.-") however i saw the thread and i saw this part saying enter these commands "fastboot erase userdata and fastboot erase system i undestand how to get the command thing open but how do u enter these in, and what i mean is do you just open the command thing and just paste these in or do u have to right click somthing open comand promt here and all the stuff then enter them? Also these steps u listed, everything is fine its just my lack off knowladge for some of these things which i do apologize for
" Fully working steps, that is 100% working:
1.flash ftf with unlocked vendor partition (.62 or .79)
2.flash lupus gb kernel
3.erase system and data from fastboot
4.enter recovery and flash your rom "
Where do you get the unlocked vender partition, and which one is better .62 or .79 and if u could send me a link as your helping me i think ur choice of links for this is more reliable than mine, and again this is greatly appreciated.

" Fully working steps, that is 100% working:
1.flash ftf with unlocked vendor partition (.62 or .79)
2.flash lupus gb kernel
Download file name R800i_4.0.2.A.0.79.ftf from Xperia Play Index - ROM'S, FIRMWARE, KERNEL'S, GUIDE'S, THEMES, MOD'S second post have firmware files
Guide how to use flashtool you can find at [GUIDE][18th Dec][4Noobs] Flashing A FTF File Using Flashtool
Flashing .79 or .62 firmware is necessary if you are planning to use lupus gb or icd/gb kernel - and you only need to do it once.
Flashing kernel is same, but when pressed on lighting icon, choose "fastboot"
3.erase system and data from fastboot
Ok, i made a zip for you. Download it from attachment, unpack to anywhere you like and double-click file named "start". Power off phone, press search and while keeping it pressed, plug in usb. I don't think you need admin rights for that, but:
MAKE SURE YOU HAVE ROM PLACED ON YOUR SD CARD! Just in case, because that program will erase everything from your phone.
You should be able to enter recovery and/or flash your rom/restore your backup.
4.enter recovery and flash your rom "
Also, read some sticky threads, they are there for a reason

Again im really sorry to bother you with this, but what if i dont want to flash the rom, becuase i didnt like it in the first place so i went back to stock, however this method of returning to stock was to flash the R800i_4.0.2.A.0.62_(1253-4437).ftf file. Now what it did was return it to stock rom (AFTER i tried the rom i didnt like) and unrooted the phone, i dont know if it returns the phone to stock firmware, and if the method of the system data wipe thing with the command prompt deleted everything, what can i flash? Little more explaination as to why im asking. Before this boot stuck thing hapenned i had used that same ftf file to return it to stock and unrooted. I re-rooted the phone and then flashed the lupus kernel. Everything was fine. I wanted to flash the doomkernel because like a dum nut i wanted to show off that i could overclock to 2ghz ( if i wanted to) as if alrdy stated before and did so. I think you can only flash zip files from your SD card so the ftf file wont be able to be flashed while on the device. So what do i flash? Should i just flash the rom i dont like and try return it to stock, then flash the ftf .79 firmware again after re-rooting the phone, then flash the doomkernelv14. In short i want to stay with the normal gingerbread 2.3.4 with doomkernelv14. Again i havent tried this yet and also sorry for these long rambly posts, i just want to give you as much info as possible in order for you to help me. Thank you so much for your solution btw much appriciated.:good:

And almost forgot i also want it back to rooted but i can do that myself, i just thought i'd specifiy it just incase its worth anything.

Try this
http://forum.xda-developers.com/showthread.php?t=2408688
Sent from my R800i using xda app-developers app

Bakisha said:
Try this
http://forum.xda-developers.com/showthread.php?t=2408688
Sent from my R800i using xda app-developers app
Click to expand...
Click to collapse
Alright ive had the chance to try it out and i just got started on the firmware flash, problem is that its stuck at 16/033/2013 14:33:15
- INFO - Preparing files for flashing
16/033/2013 14:33:53 - INFO - Please connect your device into flashmode.
16/033/2013 14:33:54 - INFO - Opening device for R/W
16/033/2013 14:33:54 - INFO - Reading device information (stuck here)
Any sugessions to what i should do?

Alright i fixed the firmware flash problem and have made it all the way to the the part where you flash your custom rom and the phone should magicly work again. Ive got past the doomlord booting screen, thats good, now im stuck at a black screen, any ideas on whats going on?

K so i fixed all the above problems, by using a different kernel, and repeating all the previous steps, THE XPERIA PLAY IS BACK DUDE THANK YOU( hit the thanks button like 100 times).

Mushtaqs said:
K so i fixed all the above problems, by using a different kernel, and repeating all the previous steps, THE XPERIA PLAY IS BACK DUDE THANK YOU( hit the thanks button like 100 times).
Click to expand...
Click to collapse
Glad to helpfull
Remember, kernel must much rom. Gb stock kernel for gb sony based rom, you'll get stuck agan in kernel logo if if you flash kernel that don't match rom/firmware
Just read in kernel thread for info on wich roms it works
Sent from my R800i using xda app-developers app

Everythings fine at the moment and i dont want to make any more dumb mistakes so im just going to ask if wiping the data and system partitions in CWM still deleted everything. I just recently got all of my apps back and all that good stuff, i just want to know if they will get erased if i do this. My deepest appologies for bothering you with something so minor and selfish.

Sorry another selfish request (Damit) but when ever i flash the doomkernel v14 my wifi gets error, i was wondering if u knew how to fix this, if u dont and have the free time or feel like it, direct me to somone who does?

Mushtaqs said:
Everythings fine at the moment and i dont want to make any more dumb mistakes so im just going to ask if wiping the data and system partitions in CWM still deleted everything. I just recently got all of my apps back and all that good stuff, i just want to know if they will get erased if i do this. My deepest appologies for bothering you with something so minor and selfish.
Click to expand...
Click to collapse
Mushtaqs said:
Sorry another selfish request (Damit) but when ever i flash the doomkernel v14 my wifi gets error, i was wondering if u knew how to fix this, if u dont and have the free time or feel like it, direct me to somone who does?
Click to expand...
Click to collapse
Yes, if you wipe data and system then EVERYTHING is deleted. All your apps (data) and even android OS itself (system). You'll have to either flash new rom or restore backup after wiping system
Doomkernel need wifi modules to be installed from CWM recovery to have working wifi
I'll attach it

Im wondering about my battery life, because it seems to be draining faster. Im using no frills cpu with the lupus kernel alowing me to overclock to 1.6 ghz. I set my higest on 1613 mhz and lowest on 249mhz using the smartassv2 governer. any idea to whats going on ?

ok...i screw up my xperia play... dunno what to do.
hi guys, been a noob after i fed up with my xperia x8 now i having a xperia play f or 2 years and try to install a custom kernel and roms but i end up brick my phone. it just stuck at logo "xperia free play". it still can enter cwm recovery mode but when i use the method press the arrow thing then plug in the usb cable to pc , it seems my pc did detect my phone but cant show up my memory card in 'my computer' window. The i try to use fastboot & flashtool both can detect my phone after plug in. Here is what i do before brick:
first thing i did on my phone was to upgrade the stock kernel 4.0.2.a.0.42, then i unlock the bootloader, root it, and start download the custom rom without download the requirement kernel. after that, i install CWM using fast boot, put the custom rom to sd card, wipe user data, bla bla bla, then install the custom rom, the next thing i see is the problem i talking about earlier. So i try to using the service update from SCE but it just say im using a modified kernel hence i unable recover it using that method. so, i try to use flash tool x10 (i cant get any working download it keep saying error 404 link, this is the best i have now) when i press the flash it come out red words with error usb ...the thing is my phone cant get detected by my computer.... What to do or it is over? (p/s : i download the flash tool & adb package winrar file & the custom rom i mention is close 2 perfection)
I know is a bit long but I really need help on my phone, i still have a x8 here from my mom and mine is xperia play brick for 3 days now i still cant find a way to solve it. PLEASE HELLLLLLLLLLPPPPPPPPPPPP. THANK YOU FOR THOSE RESPONSE~!

Bakisha said:
Glad to helpfull
Remember, kernel must much rom. Gb stock kernel for gb sony based rom, you'll get stuck agan in kernel logo if if you flash kernel that don't match rom/firmware
Just read in kernel thread for info on wich roms it works
Sent from my R800i using xda app-developers app
Click to expand...
Click to collapse
Man i was doing so well before, but im now stuck in a bootloop. I cant enter the recovery menu as the phone just keeps bootlooping. Also with lupus kernel the menu doesnt come up. I just erased the user data and system with ur zip from before and flashed aurora play with lupus v12.5 kernel It worked like everything else. i got more curious so i did the same thing erased user and system data then flashed gin2jellybean with the same kernel.( i followed ur intructions from before on how to flash roms n stuff) Everything worked again. I wanted a new kernel so i flashed extreme kernel r3. phone got stuck in a bootloop. So i erased user data and system data, then flashed and ftf stock rom and then flashed extreme kernel r3. everything was working. I went into titanium backup and uninstalled some system apps and accidently deleted the one that let you see the running services to see available ram. So i cleared data and and system data reflashed ftf stock rom in flashmode ofc, and extreme kernel in fastboot. I got a bootloop, so i tried all the different kernels that i could and i cant get into the menu for recovery. Can you please help me once again, i'll thank every post.

Mushtaqs said:
Man i was doing so well before, but im now stuck in a bootloop. I cant enter the recovery menu as the phone just keeps bootlooping. Also with lupus kernel the menu doesnt come up. I just erased the user data and system with ur zip from before and flashed aurora play with lupus v12.5 kernel It worked like everything else. i got more curious so i did the same thing erased user and system data then flashed gin2jellybean with the same kernel.( i followed ur intructions from before on how to flash roms n stuff) Everything worked again. I wanted a new kernel so i flashed extreme kernel r3. phone got stuck in a bootloop. So i erased user data and system data, then flashed and ftf stock rom and then flashed extreme kernel r3. everything was working. I went into titanium backup and uninstalled some system apps and accidently deleted the one that let you see the running services to see available ram. So i cleared data and and system data reflashed ftf stock rom in flashmode ofc, and extreme kernel in fastboot. I got a bootloop, so i tried all the different kernels that i could and i cant get into the menu for recovery. Can you please help me once again, i'll thank every post.
Click to expand...
Click to collapse
For most part, you are doing it right, but, to solve problem with recovery, you should use "eraser" AFTER you change kernel
Sent from my R800i using xda app-developers app
---------- Post added at 01:23 PM ---------- Previous post was at 01:18 PM ----------
Mushtaqs said:
Im wondering about my battery life, because it seems to be draining faster. Im using no frills cpu with the lupus kernel alowing me to overclock to 1.6 ghz. I set my higest on 1613 mhz and lowest on 249mhz using the smartassv2 governer. any idea to whats going on ?
Click to expand...
Click to collapse
Naturaly, it will drain more battery BECAUSE it's overclocked.
Sent from my R800i using xda app-developers app

Mushtaqs said:
Man i was doing so well before, but im now stuck in a bootloop. I cant enter the recovery menu as the phone just keeps bootlooping. Also with lupus kernel the menu doesnt come up. I just erased the user data and system with ur zip from before and flashed aurora play with lupus v12.5 kernel It worked like everything else. i got more curious so i did the same thing erased user and system data then flashed gin2jellybean with the same kernel.( i followed ur intructions from before on how to flash roms n stuff) Everything worked again. I wanted a new kernel so i flashed extreme kernel r3. phone got stuck in a bootloop. So i erased user data and system data, then flashed and ftf stock rom and then flashed extreme kernel r3. everything was working. I went into titanium backup and uninstalled some system apps and accidently deleted the one that let you see the running services to see available ram. So i cleared data and and system data reflashed ftf stock rom in flashmode ofc, and extreme kernel in fastboot. I got a bootloop, so i tried all the different kernels that i could and i cant get into the menu for recovery. Can you please help me once again, i'll thank every post.
Click to expand...
Click to collapse
I think you should repeat the fastboot process once again, so:
fastboot erase userdata
and fastboot erase system
then just flash the kernel you prefer.
I had exactly the same problem with my play bootlooping after flashing some kernels. and this solved the problem for me :victory:
sorry for my bad English, :crying: