Develop Bugs

[Q] Problem with flashing kernel

Hey forumuser
I've a Problem with my Xperia Play R800i. i have flashed the Kernel from doomlord. But now, i want to flash a new Kernel. When i put my xperia play in fastboot Mode and flash the New kernel with cmd, there arent any problems. But when i reboot the phone, there isnt any new kernel .. Also in Settings >Phone Information>kernel is shown the old doomlord kernel... How can i fix that?

fethu2 said:
Hey forumuser
I've a Problem with my Xperia Play R800i. i have flashed the Kernel from doomlord. But now, i want to flash a new Kernel. When i put my xperia play in fastboot Mode and flash the New kernel with cmd, there arent any problems. But when i reboot the phone, there isnt any new kernel .. Also in Settings >Phone Information>kernel is shown the old doomlord kernel... How can i fix that?
Click to expand...
Click to collapse
Used command "fastboot flash boot boot.img" ??
Sent from my MT15i using Tapatalk

kernel
I've no Problem with flashing the kernel. I use this command and it works perfectly. But when the phone reboots their isn't any new kernel, there arent any changes ...

fethu2 said:
I've no Problem with flashing the kernel. I use this command and it works perfectly. But when the phone reboots their isn't any new kernel, there arent any changes ...
Click to expand...
Click to collapse
Use the command "fastboot erase boot" before you flash new kernel, this will format boot partition and erase old kernel.
Sent from my R800i using Tapatalk

How To Install DoomKernel

Hey clever guys on XDADevelopers,
I want to know how to install doomkernel for the xperia play. But I have no clue what this fastboot exe and drivers are. My Xperia Play has got an unlocked bootloader and is run 0.42 baseband which is rooted. I want to install 0.62 baseband then install doomkernel but dont know how to to.
Thanks in advance,
zeshansajid

Use the command window that you used to unlock the bootloader.
Download dooms Kernal and rename it from. ??version?? .img to boot.img for ease, place that file in the fastboot folder that is on your pc from unlocking.
Now type this code into command window with the device unplugged.
fastboot flash boot boot.img
It will then say waiting for device. Now connect device holding search button it will then flash doom Kernal
When ok type
fastboot reboot
Your device will now boot up with doomkernal, recovery and pre-root installed.
You will need to install the modules.zip in recovery (doomkernal press back key when booting) to get WiFi working on the Rom you choose to flash if you do install one that is.
Hope this helps don't forget to say thanks
Sent from my LT26i using XDA

zeshansajid said:
Hey clever guys on XDADevelopers,
I want to know how to install doomkernel for the xperia play. But I have no clue what this fastboot exe and drivers are. My Xperia Play has got an unlocked bootloader and is run 0.42 baseband which is rooted. I want to install 0.62 baseband then install doomkernel but dont know how to to.
Thanks in advance,
zeshansajid
Click to expand...
Click to collapse
assuming you have flashtool just download doomkernel and wifi modules.
1. unzip the folder
2. place file in C:\Flashtool folder
3. startup flahtool, click the "thunder bolt" icon, and then click fastboot mode
4. click "select kernel to flash"
5. you should then see the desired kernel you have placed in flashtool folder from step 2 click on it then click "ok"
6. it will flash in about 2 point something seconds
7. read the log when its done then click on the "thunder bolt" icon again and select fastboot mode
8. click "reboot device into system"
wola! you r running doomkernel! and dont forget to flash wifi modules!
put the modules on root of sd card and flash via cwm
pls hit thanks if i helped

1. unzip the folder
2. place file in C:\Flashtool folder
3. startup flahtool, click the "thunder bolt" icon, and then click fastboot mode
4. click "select kernel to flash"
5. you should then see the desired kernel you have placed in flashtool folder from step 2 click on it then click "ok"
6. it will flash in about 2 point something seconds
7. read the log when its done then click on the "thunder bolt" icon again and select fastboot mode
8. click "reboot device into system"
wola! you r running doomkernel! and dont forget to flash wifi modules!
put the modules on root of sd card and flash via cwm
may i ask , what is wifi modules for ?? what you mean put modules on root of sd?? and how to flash via cwm?? can u explain more detailed.. im very new to android

that was awsome thank you!!!! Next how do I flash a custome rom??? lol

alquistador said:
that was awsome thank you!!!! Next how do I flash a custome rom??? lol
Click to expand...
Click to collapse
Download the zip file for that rom, place in sd card boot into recovery, depending on what rom you are flashing, you might have to wipe data. Then just flash it using CWM

zeshansajid said:
Hey clever guys on XDADevelopers,
I want to know how to install doomkernel for the xperia play. But I have no clue what this fastboot exe and drivers are. My Xperia Play has got an unlocked bootloader and is run 0.42 baseband which is rooted. I want to install 0.62 baseband then install doomkernel but dont know how to to.
Thanks in advance,
zeshansajid
Click to expand...
Click to collapse
zeshansajid i forgot to tell you b4 you flash a rom make sure you WIPE DATA, CACHE PARTITION, DALVIK CACHE. this is usually called a FULL WIPE make sure you do this right b4 you are about to flash the rom. my bad. pm me if you need more help
PLAY-DooMKernel-ICS-Beta-v01-modules_CWM.zip - this is for ics++ and any other ics beta custom rom
the other 1 is for gingerbread

Thanks man, very helpful indeed!

Thanks man, very clear and simple instructions

One problem I click fastboot mode then choose select kernel to flash and get the error action can only be done in fastboot mode

im ok now

solomon4400 said:
zeshansajid i forgot to tell you b4 you flash a rom make sure you WIPE DATA, CACHE PARTITION, DALVIK CACHE. this is usually called a FULL WIPE make sure you do this right b4 you are about to flash the rom. my bad. pm me if you need more help
PLAY-DooMKernel-ICS-Beta-v01-modules_CWM.zip - this is for ics++ and any other ics beta custom rom
the other 1 is for gingerbread
Click to expand...
Click to collapse
hi there. i went thru the conversation but unfortunately, still abit blurr on how to overclock my arc s. im using ICS android version. ive asked posted and do almost everything in order to get a very detailed instruction on how to overclock.
i know that my phone needs to be rooted(done), n i dont know what is "UNLOCK BOOTLOADER" n "FASTBOOT". usually, they just told me to do these but dnt exactly telling me HOW to do these.
im dying to overclock my phone so that im hoping that u can help me out.
what should i do after i rooted my phone,
how to do fastboot or unlock bootloader n what software do i need in order to make it done.
a million thanks if u can help me out bro..

Carl_Arc_S said:
hi there. i went thru the conversation but unfortunately, still abit blurr on how to overclock my arc s. im using ICS android version. ive asked posted and do almost everything in order to get a very detailed instruction on how to overclock.
i know that my phone needs to be rooted(done), n i dont know what is "UNLOCK BOOTLOADER" n "FASTBOOT". usually, they just told me to do these but dnt exactly telling me HOW to do these.
im dying to overclock my phone so that im hoping that u can help me out.
what should i do after i rooted my phone,
how to do fastboot or unlock bootloader n what software do i need in order to make it done.
a million thanks if u can help me out bro..
Click to expand...
Click to collapse
here the sites to unlocked booatloader http://unlockbootloader.sonymobile.com/
read carefully the instruction , dont miss single step

zeshansajid said:
One problem I click fastboot mode then choose select kernel to flash and get the error action can only be done in fastboot mode
Click to expand...
Click to collapse
Q; R u using "FLASHTOOL" to flash a Custom kernel??
Sent from Soul Society Network (S.S.N)

sdojoin said:
Q; R u using "FLASHTOOL" to flash a Custom kernel??
Sent from Soul Society Network (S.S.N)
Click to expand...
Click to collapse
Flashtool has a kernel flash option. Never used it, I feel safer using the command line using fastboot
Sent from my R800i using xda premium

CTU_Loscombe said:
Flashtool has a kernel flash option. Never used it, I feel safer using the command line using fastboot
Sent from my R800i using xda premium
Click to expand...
Click to collapse
So, ur problem is ur cmmand line. Wht did u type in ur cmmand line???
Sent from Soul Society Network (S.S.N)

Is there any actual reason to use DoomKernel except for overclocking? Does it have any other advantages, performance- or featurewise?

Its stable & finallize. No problem nor issues what so eva.
Regards,
Sdojoin

Reboot into fastboot via ADB
zeshansajid said:
One problem I click fastboot mode then choose select kernel to flash and get the error action can only be done in fastboot mode
Click to expand...
Click to collapse
Before you select 'select kernel to flash'
You must first reboot into fastboot via ADB.
Any more problems? Feel free to pm me. Thanks

wifi issues
Ok so I know that im a bit late with this but I just flashed doomkernel v14 with modules and now can't get my xperia plat r800at to connect to the Wi-Fi. When I try to c onnect it tries to aquire ip and then just continues scanning. This is a continuous loop. I tried deleting the cache and data along with a factory reset trying to fix this with nothing. Any help would be greatly appreciated.

Get stuck att Sony logo.

Hello.
I have tried to install JJ's hybrid 3.2 and 3.1. I have tried 3 different kernels, and also i tried the Jellybeen ROM..
Everytime i have been stuck at the Sony logo, and needed to flash back to Stock.
What should i do?

What kernels have you tried?

TD092854 said:
What kernels have you tried?
Click to expand...
Click to collapse
ArcKnight 3.5.1 och 3.6 and "Stock ICS Beta Kernel with CWM"
Cant remember the other one right now.

Hagberg86 said:
ArcKnight 3.5.1 och 3.6 and "Stock ICS Beta Kernel with CWM"
Cant remember the other one right now.
Click to expand...
Click to collapse
ArcKnight 3.6 doesn't boot, 3.5.1 does.
Also ArcKnight doesn't have the sony logo.
Stock kernel should always work, unless you're using some init.d script that causes a boot loop.
Have you tried flashing everything from scratch?

TD092854 said:
ArcKnight 3.6 doesn't boot, 3.5.1 does.
Also ArcKnight doesn't have the sony logo.
Stock kernel should always work, unless you're using some init.d script that causes a boot loop.
Have you tried flashing everything from scratch?
Click to expand...
Click to collapse
The Sony logo comes after i flashed the new ROM and tries to reboot.
I have tried flashing a bounce of times, always the same ending.
I flash an older firmware, roots, puts in the new kernel, and then installing the ROM. Then when i restart its just goes to Sony logo and stay there.

Hagberg86 said:
The Sony logo comes after i flashed the new ROM and tries to reboot.
I have tried flashing a bounce of times, always the same ending.
I flash an older firmware, roots, puts in the new kernel, and then installing the ROM. Then when i restart its just goes to Sony logo and stay there.
Click to expand...
Click to collapse
To flash another kernel you need to unlock your bootloader.
Rooting it won't do the trick.

TD092854 said:
To flash another kernel you need to unlock your bootloader.
Rooting it won't do the trick.
Click to expand...
Click to collapse
Sorry i forgot it, i was using unlockbootloader.sonymobile.com for help with the bootloader.:silly:

Helps.
use your fastboot.
btw what are you running at? ICS or GB
You need to flash your kernel I recommend use the Stock kernel.

Patambiz said:
use your fastboot.
btw what are you running at? ICS or GB
You need to flash your kernel I recommend use the Stock kernel.
Click to expand...
Click to collapse
Iam using fastboot...
4.0.2.A.0.42 is the version i use before i start.
I have tried to flash my kernel, with different ones.

Are you wiping device before flashin ROM?

ZyxeLa said:
Are you wiping device before flashin ROM?
Click to expand...
Click to collapse
System restore and dalvik cache...

You say you flashed .42 as the old firmware and start from there.
That's a gingerbread rom and JJ Hybrid is an ICS rom.
Also you can't use ICS on a gingerbread kernel and vice versa.
I suggest you flash the official ICS update from sony, which can be found here:
http://forum.xda-developers.com/showthread.php?t=1330314
And then try to flash your favorite ICS kernel, factory reset, format system and then flash your favorite ICS rom.
Good luck!

TD092854 said:
You say you flashed .42 as the old firmware and start from there.
That's a gingerbread rom and JJ Hybrid is an ICS rom.
Also you can't use ICS on a gingerbread kernel and vice versa.
I suggest you flash the official ICS update from sony, which can be found here:
http://forum.xda-developers.com/showthread.php?t=1330314
And then try to flash your favorite ICS kernel, factory reset, format system and then flash your favorite ICS rom.
Good luck!
Click to expand...
Click to collapse
Thank you, not i get to where i should enter my pin... But now the screen only work where the "5" is.... wtf ..

Hagberg86 said:
Thank you, not i get to where i should enter my pin... But now the screen only work where the "5" is.... wtf ..
Click to expand...
Click to collapse
Wow wtf, that's.. really strange..
Or the screen is dead or there is something wrong with the touch drivers.
Maybe a reboot will fix it..
P.S. Hit thanks if i helped you

TD092854 said:
Wow wtf, that's.. really strange..
Or the screen is dead or there is something wrong with the touch drivers.
Maybe a reboot will fix it..
P.S. Hit thanks if i helped you
Click to expand...
Click to collapse
I reflashed it to Stock ROM, not its working...
I tried to flash different kernels but everytime same problem...

Hagberg86 said:
I tried to flash different kernels but everytime same problem...
Click to expand...
Click to collapse
What line of code are you using with fastboot?

XperienceD said:
What line of code are you using with fastboot?
Click to expand...
Click to collapse
Iam using flashtool

When Flashing Rom I use command prompt
Fastboot flash boot rom.img
I suggest use the Stock rom if you got srucked on logo

Patambiz said:
When Flashing Rom I use command prompt
Fastboot flash boot rom.img
I suggest use the Stock rom if you got srucked on logo
Click to expand...
Click to collapse
ROM cannot be installed like this.
You are flashing kernel with that command.
Stock ROM needs to be installed via Flashtool. Or another fastboot command("fastboot flash system filename.img" for system folder).

[Q] Custom Kernel auto disabled after the reboot !!!!

Hi ! Im using the Xperia ultimate hd 2.0.3 Rom and i tried to install lupus V9 kernel. everything was fine and i followed every installation step like usual, but when i reboot the phone the custom kernel disappear and its the official one which boot.
What can i do plz to solve this issue ?
Rom: xperia ultimate hd 2.0.3
Bootloader: unlocked
System rooted
Phone: Xperia Arc

Use the right command - fastboot flash boot kernelname.img

XperienceD said:
Use the right command - fastboot flash boot kernelname.img
Click to expand...
Click to collapse
im using flashtool for the installation and during the fastboot the kernel is installed correctly and the phone boot normally but when i reboot the phone it turns on the official one.
its not the first time i flash kernel and i never had such problem.

big-A said:
im using flashtool for the installation and during the fastboot the kernel is installed correctly and the phone boot normally but when i reboot the phone it turns on the official one.
its not the first time i flash kernel and i never had such problem.
Click to expand...
Click to collapse
Try it manually and see or use an older version of the flashtool as it obviously isn't working properly.

Did you use "Select kernel to flash" option?

Someguyfromhell said:
Did you use "Select kernel to flash" option?
Click to expand...
Click to collapse
Problem solved !
I was hotbooting the kernel but now i flashed it and it work fine
Thanks !

[Q] Will installing new ROM wipe X-Parts CWM?

Hi, question: I failed time and again to get CWM working, but finally got it to work using x-parts. However, x-parts is keen to point out that it is not a fully fledged recovery and that "if you wipe the system partition for any reason, it will be gone!".
Does this not mean that if I boot into recovery and install a new ROM (Going for the FXP CM10 one, if it matters), then when I wipe the phone beforehand I'll also wipe my CWM install, thus completely bricking the device? Would appreciate any thoughts, thanks

Artemicion said:
Hi, question: I failed time and again to get CWM working, but finally got it to work using x-parts. However, x-parts is keen to point out that it is not a fully fledged recovery and that "if you wipe the system partition for any reason, it will be gone!".
Does this not mean that if I boot into recovery and install a new ROM (Going for the FXP CM10 one, if it matters), then when I wipe the phone beforehand I'll also wipe my CWM install, thus completely bricking the device? Would appreciate any thoughts, thanks
Click to expand...
Click to collapse
Yes, if you wipe the system partition there will be no more CWM. For CM10, you need to flash a custom kernel for it to work. This custom kernel will usually come with a CWM recovery so it will not be wiped when you flash a new ROM.
僕のLT18iから送られてきた

Thanks. But, to clarify, once I flash new CM10/Jellybean Kernel, my current Gingerbread install will also completely cease to function right? And I'd need to flash back to something earlier to get it to work, if I so desired?

Artemicion said:
Thanks. But, to clarify, once I flash new CM10/Jellybean Kernel, my current Gingerbread install will also completely cease to function right? And I'd need to flash back to something earlier to get it to work, if I so desired?
Click to expand...
Click to collapse
Is your bootloader unlocked?
And yes you will have to flash GB ftf using flashtool
Sent from my LT18i

Yeah, I unlocked the bootloader and rooted it ages ago, but have since neglected actually updating the ROM, decided I can't live in a GB world anymore though.
So, as I understand it, process would be flash a new GB kernel to get CWM > Wipe Everything > Install the relevant ROM and GApps > Done? Does this ROM installation include the update to JB kernel then? Thanks

Artemicion said:
Yeah, I unlocked the bootloader and rooted it ages ago, but have since neglected actually updating the ROM, decided I can't live in a GB world anymore though.
So, as I understand it, process would be flash a new GB kernel to get CWM > Wipe Everything > Install the relevant ROM and GApps > Done? Does this ROM installation include the update to JB kernel then? Thanks
Click to expand...
Click to collapse
If I am not mistaken the kernel boot img should be inside the ROM zip. Check the ROM zip. Just flash the boot img using fastboot, boot into CWM recovery and flash ROM & gapps.
僕のLT18iから送られてきた

Ah, ok, well this brings me full circle. Because I'm trying to follow the boot instructions to do so, but:
fastboot -i 0xfce flash boot boot.img
doesn't work. I've taken the boot.img out of the ROM, and put it in the platform-tools folder. But whenever I try this line, it says it can't boot it, and quotes "no error" (no longer at home so can't quote the exact error, but it's something like that). I assumed the problem was me lacking CWM, hence was trying to install that first. Fastboot devices DOES show the device, and both fastboot and adb commands work in a terminal, but I just can't get it to boot into the ROM recovery for Cyanogenmod. Driving my crazy! Thanks

fastboot flash boot boot.img, if I'm not mistaken, is the right command. I use flashtool
Sent from my Xperia Arc S using xda premium

Artemicion said:
Ah, ok, well this brings me full circle. Because I'm trying to follow the boot instructions to do so, but:
fastboot -i 0xfce flash boot boot.img
doesn't work. I've taken the boot.img out of the ROM, and put it in the platform-tools folder. But whenever I try this line, it says it can't boot it, and quotes "no error" (no longer at home so can't quote the exact error, but it's something like that). I assumed the problem was me lacking CWM, hence was trying to install that first. Fastboot devices DOES show the device, and both fastboot and adb commands work in a terminal, but I just can't get it to boot into the ROM recovery for Cyanogenmod. Driving my crazy! Thanks
Click to expand...
Click to collapse
You don't need to add -i 0xfce to the command. Just type fastboot flash boot <name of boot image>.img
僕のLT18iから送られてきた

tangosierra_ said:
fastboot flash boot boot.img, if I'm not mistaken, is the right command. I use flashtool
Sent from my Xperia Arc S using xda premium
Click to expand...
Click to collapse
Thanks, I'll give that a go, not going to be able to try for a few days now, but will. FYI, I took the line of code I was trying directly from the Cyanogenmod wiki for Anzu

tangosierra_ said:
fastboot flash boot boot.img, if I'm not mistaken, is the right command. I use flashtool
Sent from my Xperia Arc S using xda premium
Click to expand...
Click to collapse
Ok, so finally got home to try this, still throwing this out: "error: cannot load 'boot.img': No error"
I've got the right boot.img in my platform-fools folder, the relevant CM build on my SD Root along with GApps. Drivers are definitely installed correctly as fastboot devices shows the device, as do adb command when it's on - anyone got any suggestions? Would be immensely grateful if this confounded problem could be solved. Thanks

Artemicion said:
Ok, so finally got home to try this, still throwing this out: "error: cannot load 'boot.img': No error"
I've got the right boot.img in my platform-fools folder, the relevant CM build on my SD Root along with GApps. Drivers are definitely installed correctly as fastboot devices shows the device, as do adb command when it's on - anyone got any suggestions? Would be immensely grateful if this confounded problem could be solved. Thanks
Click to expand...
Click to collapse
What is the name of the .img file? It can't have any spaces inside.
僕のLT18iから送られてきた

popthosegaskets said:
What is the name of the .img file? It can't have any spaces inside.
僕のLT18iから送られてきた
Click to expand...
Click to collapse
Looks to just be "boot.img" to me, no spaces or anything.

Have you tried flashtool?
Sent from my LT18i using xda premium

tangosierra_ said:
Have you tried flashtool?
Sent from my LT18i using xda premium
Click to expand...
Click to collapse
No, guess I'll try that next. As I remember, that's what I used to flash in order to root it ages ago. Thanks