Develop Bugs

[Q] Xperia arc - stuck in Boot Loop issue - Please Help

Hey Guyz,
i unlocked by bootloader using fast boot method
then i rooted my phone using the same method and it was working fine.
Yesterday i installed CW rom and CWM autoinstaller , to reboot in recovery and installed a mod to bring reboot in Power Off menu options.. it intalled correctly.
But when i rebooted the phone, the sony ericcson logo appears again and again.. i.e it is stuck in boot loop.. m still able to enter in recovery but unable to boot my phone properly..
Please Help...

The First solution is to flash a stock firmware using flashtool.
But which Kernel and which Rom have you tried to flash?
Sent from my iPad using Tapatalk HD

k.. i'l try to flash 4.0.a.283 using fastboot..
BTW
I am noob.. Dont know anything about anything about kernel.. all i did was install Clock work rom.. When i opened it, it said, "you need to install CWM". So i installled CWM autoinstaller...
Now with everything installed, i booted into recovery and installed a mod ( which brings the option to reboot in Power Off menu). It installed correctly... Then i clicked on reboot system now.. That is when i realized that m stuck in boot loop..

hysenkoshy said:
k.. i'l try to flash 4.0.a.283 using fastboot..
BTW
I am noob.. Dont know anything about anything about kernel.. all i did was install Clock work rom.. When i opened it, it said, "you need to install CWM". So i installled CWM autoinstaller...
Now with everything installed, i booted into recovery and installed a mod ( which brings the option to reboot in Power Off menu). It installed correctly... Then i clicked on reboot system now.. That is when i realized that m stuck in boot loop..
Click to expand...
Click to collapse
You must first check the compatibilty of "reboot mod" with the firmware version you use.
Just check the firmware you have in your phone and make sure it matches with the firmware on which the mod is based.

@wayne
I have flashed my phone using fastboot method just like i did it when i was rooting my phone. And Thank GOD it is working fine now..
@KingWecked,
M still trying to figure out, where did i go wrong at the first place...
was it the CWM auto installer ??
or was it the Reboot mod ?? coz i downloaded the mod for xperia arc only..
Do we need to change that kernel thing after rooting ??
I don't know what the hell is a kernel; and after rooting i haven't done anything with my kernel. Should i ???

A kernel is the base of what Android runs
Sent from my iPad 2 using Tapatalk

hysenkoshy said:
M still trying to figure out, where did i go wrong at the first place...
was it the CWM auto installer ??
or was it the Reboot mod ?? coz i downloaded the mod for xperia arc only..
Do we need to change that kernel thing after rooting ??
I don't know what the hell is a kernel; and after rooting i haven't done anything with my kernel. Should i ???
Click to expand...
Click to collapse
Before you install any mod,you must first check the firmware version you are using.You can find it out from Settings-->About Phone-->Build Number.
It contains the firmware version on which your phone is running Ex:4.0.a.283
.283 is the old version firmware and most of the mods dont work on this firmware.You must flash the latest firmware .42 in order to support the majority of the mods and themes available in this forum
And a kernel is very complicated thing.you must not mess with it unless you know what you are doing.Manipulating your kernel might brick your phone permanently.And if you want to know much further about kernels then search the forum and you must find loads of threads explaining about kernels and stuff related with it

@ KingWickedd
are u sure .283 is an old firmware
Coz initially i had "unrooted .62"
For rooting purpose i downloaded this firmware..
So can U please tell me where can i get " rooted 0.42 firmware" where i can start installing all mods right away..
Note: Multiupload links are not working ... Any other links ????

hysenkoshy said:
@ KingWickedd
are u sure .283 is an old firmware
Coz initially i had "unrooted .62"
For rooting purpose i downloaded this firmware..
So can U please tell me where can i get " rooted 0.42 firmware" where i can start installing all mods right away..
Note: Multiupload links are not working ... Any other links ????
Click to expand...
Click to collapse
Yes I am sure its the old version where as .42/.62/.69 are the latest firmware versions.They have almost everything in common and they differ based on the regions they are released in.
For rooted .42 firmware..follow this link below..
http://forum.xda-developers.com/showthread.php?t=1330314

Boot looooop
I am facing the same problem but the solutions given in here doesn't seem to work..please help me.
I had .42 rooted on my XPERIA ARC, unlocked bootloader.
Installed Cyanogenmod Stable version and flashed its boot.img.
Wiped the cache n data.
Installed the zip file after going into recovery mode but phone is stuck in BOOTLOOP...
When i try re-flashing .42 generic firmware using flashtool, PC hangs and i need to restart
Please help me out guys...

You need to flash kernel toooo
From my sexy LT15i

amulbaby said:
I am facing the same problem but the solutions given in here doesn't seem to work..please help me.
I had .42 rooted on my XPERIA ARC, unlocked bootloader.
Installed Cyanogenmod Stable version and flashed its boot.img.
Wiped the cache n data.
Installed the zip file after going into recovery mode but phone is stuck in BOOTLOOP...
When i try re-flashing .42 generic firmware using flashtool, PC hangs and i need to restart
Please help me out guys...
Click to expand...
Click to collapse
Don't worry...first start PC in safe mode first and then connect mobile in faatboot mode and wait for minute.. driver will install automatically..then restart PC in normal..then flash kernal in fast boot mode with recovery inbuilt..then flash rom.. it work for me in past..
Sent from my Xperia Arc using xda premium

hEY GUYS,
Thanks a lot...
What i did was...Flashed the kernal again...
Wiped Dalvik Cache...Rebooted into recovery...
Wiped Data n Cache partition...rebooted
And then re-installed the zip from SD card...
But now i wanna have a help reg. restoring of nandroid backup....
I had taken a nandroid backup using CWM Auto-installer...
But now I wanna know how can i restore my apps that i had with Stock ROM...i tried a advanced backup on /data alone but then, its not booting up if i do so...
Please help..

Need Help

Guys i need some advice with rooting my friend's Arc s. Here s what i did
Phone was on official ICS. I unlocked the bootloader using the official method.
Then i rooted it using some one click root method
Then installed recovery using recoverx software
Booted to recovery, wipe data, format system
Then tried to install a rom called racing bean. But i got and status 7 error. I tried some other JB rom.
But got the same error
Then i switched off and tried get to recovey. but could not
So i relocked the bootloader and installed official ICS again to boot the phone. The phone is fine now.
so can anybody help me to properly do this?? I just want to install CM on this phone

Racing bean or any other jb rom needs a JB Kernel too!.the ics kernel and jb rom mismatch might give that error.First flash a jb kernel and then it should work fine. This one's what i use http://forum.xda-developers.com/showthread.php?t=1885559.

First, you forgot kernel. Second make a backup with cwm before any wipe.
Sent from my LT15i using xda premium

I recommed TWRP recovery over cwm, it gave me problems starting out.
Sent from my EVO using xda app-developers app

Lordemort said:
Racing bean or any other jb rom needs a JB Kernel too!.the ics kernel and jb rom mismatch might give that error.First flash a jb kernel and then it should work fine. This one's what i use http://forum.xda-developers.com/showthread.php?t=1885559.
Click to expand...
Click to collapse
I flashed lupus kernel but after that i could not get into recovey. How can i do that?? I had the same problem with Arc fusion kernel

Well,there shouldnt be any problem,vol down or up button while the device lights up(led glows) does the job.But maybe u can try flashing it agn..if still having an issue..use an app like rom toolbox or boot manager to reboot into recovery..btw srry for the late reply

I gave up the effort. I tried about 6 Roms and kernels. Even ICS kernels with ICS roms. But After flashing the rom the phone does not go pass the kernel boot screen. I had to relock the bootloader and flash the stock Rom again. I have flashed hundreds of roms on so many devices. But never faced this kind of situation

pasanjay said:
Guys i need some advice with rooting my friend's Arc s. Here s what i did
Phone was on official ICS. I unlocked the bootloader using the official method.
Then i rooted it using some one click root method
Then installed recovery using recoverx software
Booted to recovery, wipe data, format system
Then tried to install a rom called racing bean. But i got and status 7 error. I tried some other JB rom.
But got the same error
Then i switched off and tried get to recovey. but could not
So i relocked the bootloader and installed official ICS again to boot the phone. The phone is fine now.
so can anybody help me to properly do this?? I just want to install CM on this phone
Click to expand...
Click to collapse
Not sure why you would have installed RecoverX if you have an unlocked bootloader as all you need to do is flash a kernel that includes CWM.

XperienceD said:
Not sure why you would have installed RecoverX if you have an unlocked bootloader as all you need to do is flash a kernel that includes CWM.
Click to expand...
Click to collapse
I have never played with a xperia device before. But i did flash kernels with cwm and flashed roms. But when i rebooted it never went pass the kernel boot screen

pasanjay said:
But i did flash kernels with cwm and flashed roms.
Click to expand...
Click to collapse
I think you should flash kernels via fastboot.

panda0 said:
I think you should flash kernels via fastboot.
Click to expand...
Click to collapse
Ya right i did flash the kernel via fastboot. Then booted into CWM and flashed the rom. But when i reboot it gets stuck at kernel screen

This happened to me and all I did was leave the phone like 10 mins booting, then it magically worked. I'm using Arc fusion 4.3 with racing bean, no problems. Try this, flash lupus kernel, wipe everything, go on fastboot and flash fusion, try to go on cwm and if it works, try to install racingbean again. At least that's one of the things I did.

AW: Need Help
Always give the recovery log...
& exact error code ^^
Than search google.
Than xda.
Than post ^^

flash newest sony ics stock rom-->fastboot kernel in the cm zip-->wipe all cm need-->use cwm flash rom-->use cwm flash gapp (goo.im/gapps) (ex: cm10 should be gapps-jb-20121011-signed.zip)-->enjoy!!
NOTE: If you are facing problems such as "Status Error 7" while installing, try THIS
Click to expand...
Click to collapse

pasanjay said:
Ya right i did flash the kernel via fastboot. Then booted into CWM and flashed the rom. But when i reboot it gets stuck at kernel screen
Click to expand...
Click to collapse
So you didn't see the boot animation after kernel screen?
How do you flash the kernel? Did you see it finished successful on screen?

croudra said:
So you didn't see the boot animation after kernel screen?
How do you flash the kernel? Did you see it finished successful on screen?
Click to expand...
Click to collapse
No i did not see the boot animation. And yes the kernels were flashed successfully.

croudra said:
So you didn't see the boot animation after kernel screen?
How do you flash the kernel? Did you see it finished successful on screen?
Click to expand...
Click to collapse
Sent froma see e$s my SCH-I535 using xda app-developers app

Flashing problem

Hey guys!
My Xperia Arc S is kinda new - 1 month old.
I was on Xperia Ultimade HD Rom for a while and wanted to install another rom, so i did via CWM Recovery.
All fine.
I wanted to restart my phone but it got stock in Sony Logo.
Because my bootloader cant be unlocked i rooted with kernel downgrade and CWM is not there after flashing due to the wipe.
So i flashed stock .tft with Flashtool and phone booted again.
Now when I'm trying to flash anything my phone gets always stuck in Sony Logo (even when i try Eagleboy's mode without wiping!).
Anyway: I'd like to install a custom rom.
Does anyone how to fix this?
Bootloader: Locked
Phone: LT18i
Rooted: yes
... and I have the 4.0.1.B.0.587 firmware installed right now.
Thanks in advance!

Phone Flashing problem
That's the only problem with locked bootloader's:crying:When you install some stock custom roms you have to wipe system to do a clean install which by default wipes cwm because it is installed in system for locked bootloader's.So if you have a problem with a install you have to flash another .ftf because you wiped cwm recovery.
When I first had arc I had a locked bootloader and it was a pain if something went wrong while flashinghaving to flash again etc! etc! It just got to stage where I had enough and took the plunge and unlocked the bootloader.:good:
I'm afraid it's one of those things you have to live with unless you unlock your bootloader:crying: ( I know you said you can't )there are quite a few stock roms that work but like I said if anything goes wrong you have to flash .ftf again.Probably a case of just trying each one Jader's rom alway's seemed to boot nice:good:

tallman43 said:
That's the only problem with locked bootloader's:crying:When you install some stock custom roms you have to wipe system to do a clean install which by default wipes cwm because it is installed in system for locked bootloader's.So if you have a problem with a install you have to flash another .ftf because you wiped cwm recovery.
When I first had arc I had a locked bootloader and it was a pain if something went wrong while flashinghaving to flash again etc! etc! It just got to stage where I had enough and took the plunge and unlocked the bootloader.:good:
I'm afraid it's one of those things you have to live with unless you unlock your bootloader:crying: ( I know you said you can't )there are quite a few stock roms that work but like I said if anything goes wrong you have to flash .ftf again.Probably a case of just trying each one Jader's rom alway's seemed to boot nice:good:
Click to expand...
Click to collapse
Hi, thanks for your answer
I tried to install 3 different roms till now - i wiped everything.
Then: Boot till sony-logo - I have to flash another tft with flashtool, Root again, and this takes time and is quite annoying.
I came from Samsung Galaxy S there wasn't the problem with the "bootloader" which is really annoying.
So: What should i do now?
I mean my CWM is not persistent and till now no rom worked.

Galaxy3User said:
Hi, thanks for your answer
I tried to install 3 different roms till now - i wiped everything.
Then: Boot till sony-logo - I have to flash another tft with flashtool, Root again, and this takes time and is quite annoying.
I came from Samsung Galaxy S there wasn't the problem with the "bootloader" which is really annoying.
So: What should i do now?
I mean my CWM is not persistent and till now no rom worked.
Click to expand...
Click to collapse
Hi totally agree it is frustrating!:crying: When you install some of these custom rom's they use Aroma installer are you unticking the reboot option in aroma installer and rebooting from cwm?Because you need to reboot that way (you seem to be doing everything right )
(1) Boot to cwm
(2) Wipe cache/Data/Advanced Dalvik cache
(3) Mounts & Storage format data/cache/system (NOTHING ELSE!)
(4) Install .zip on Sd card
(5) Choose options Aroma Installer
(6) Untick reboot option
(7) Reboot from cwm

tallman43 said:
Hi totally agree it is frustrating!:crying: When you install some of these custom rom's they use Aroma installer are you unticking the reboot option in aroma installer and rebooting from cwm?Because you need to reboot that way (you seem to be doing everything right )
(1) Boot to cwm
(2) Wipe cache/Data/Advanced Dalvik cache
(3) Mounts & Storage format data/cache/system (NOTHING ELSE!)
(4) Install .zip on Sd card
(5) Choose options Aroma Installer
(6) Untick reboot option
(7) Reboot from cwm
Click to expand...
Click to collapse
Yes i know , but thats what i did !
Wiped & formatting these settings and unticking reboot in aroma.
But it still doesn't work

Galaxy3User said:
Yes i know , but thats what i did !
Wiped & formatting these settings and unticking reboot in aroma.
But it still doesn't work
Click to expand...
Click to collapse
:crying:Like I said you seem to be doing everything rightHave you tried this rom http://forum.xda-developers.com/showthread.php?t=1994135 it's a two part installation but if I remember right this one seemed to install ok:good:

tallman43 said:
:crying:Like I said you seem to be doing everything rightHave you tried this rom http://forum.xda-developers.com/showthread.php?t=1994135 it's a two part installation but if I remember right this one seemed to install ok:good:
Click to expand...
Click to collapse
Haha i know. Thats why it seems strange for me too. But i need a custom rom and normally i would need a different kernel too.
But thats not possible. Sadly.
So nobody knows what i could change?

Galaxy3User said:
Haha i know. Thats why it seems strange for me too. But i need a custom rom and normally i would need a different kernel too.
But thats not possible. Sadly.
So nobody knows what i could change?
Click to expand...
Click to collapse
Only other thing you could try is changing your base firmware/ftf I notice you are using .587 base ftf try changing to another one, although Some of the custom roms recommend that firmware
Maybe someone else as any ideas

Απ: Flashing problem
If you accidentally formatted system then you removed the cwm. Try flashing the official ftf, install x-parts and redo everything without wiping system partition.
The other choice is to unlock your bootloader and you'll never face this problem again. I voided my warranty less a month after taking my phone, I knew that any problem will come up I could fix it myself
Sent from my Xperia Arc

Retrosid said:
If you accidentally formatted system then you removed the cwm. Try flashing the official ftf, install x-parts and redo everything without wiping system partition.
The other choice is to unlock your bootloader and you'll never face this problem again. I voided my warranty less a month after taking my phone, I knew that any problem will come up I could fix it myself
Sent from my Xperia Arc
Click to expand...
Click to collapse
Yep sure - but my CWM is gone when i wipe data. And I tried this: I flashed stock .ftf and installed xparts, then flashed a ROM without wipe - but doesn't boot and I cant access CWM again :/
And as I said i can't unlock my bootloader.

.. But the strange thing is just:
I even get bootloop when I install EAGLEBOYYS MOD (!) without WIPING anything! (just the recommended for sure)
That should not happen.

Why can't you unlock bootloader? Doing that would solve most of the problems you are facing. You don't have to downgrade to re root. Flash the stock kernel, install a new recovery then try again.
Sent from my Xperia Arc S using xda premium

If I go in service menu it says: Bootloader Unlock Allowed: No !
If I flash stock .ftf root is gone (?) -- RootChecker says that root is gone too.

Galaxy3User said:
Yep sure - but my CWM is gone when i wipe data. And I tried this: I flashed stock .ftf and installed xparts, then flashed a ROM without wipe - but doesn't boot and I cant access CWM again :/
And as I said i can't unlock my bootloader.
Click to expand...
Click to collapse
Galaxy3User said:
If I go in service menu it says: Bootloader Unlock Allowed: No !
If I flash stock .ftf root is gone (?) -- RootChecker says that root is gone too.
Click to expand...
Click to collapse
First of all - this thread: http://forum.xda-developers.com/showthread.php?t=1683957
I advice you to take step by step STRICTLY.
Or you can try to root with the FlashTool but I'm not sure if it will work with locked BL.
After that: http://forum.xda-developers.com/showthread.php?t=1955248
And for additional info: http://forum.xda-developers.com/showthread.php?t=1955248

TopperBG said:
First of all - this thread: http://forum.xda-developers.com/showthread.php?t=1683957
I advice you to take step by step STRICTLY.
Or you can try to root with the FlashTool but I'm not sure if it will work with locked BL.
After that: http://forum.xda-developers.com/showthread.php?t=1955248
And for additional info: http://forum.xda-developers.com/showthread.php?t=1955248
Click to expand...
Click to collapse
Thats how i rooted my Arc S!
Thats the only method that is working with locked BL.
And well, i took all the steps mentioned in the second topic you posted..
If you can't get it to work (stuck on Sony logo), then flash this in flash tool and then root again and do it one more time.
It´s ICS and kernel for Arc S but works fine on regular Arc. I use it myself on my Arc.
http://www.mediafire.com/?r0anos8emtx4iiy password is MMAS (If asked for)
Good luck and have fun with your superfast Arc with Ultimate HD™ ROM 2.0.
Click to expand...
Click to collapse
And this download link doesnt work :/

Galaxy3User said:
Thats how i rooted my Arc S!
Thats the only method that is working with locked BL.
And well, i took all the steps mentioned in the second topic you posted..
And this download link doesnt work :/
Click to expand...
Click to collapse
Here it is:
https://www.box.com/s/yu3dbp760kkyw7osoo41
https://www.box.com/s/9prbhnvkmyrglyoyl20j

TopperBG said:
Here it is:
https://www.box.com/s/yu3dbp760kkyw7osoo41
https://www.box.com/s/9prbhnvkmyrglyoyl20j
Click to expand...
Click to collapse
I flashed these files already after i got stuck at SONY logo but doesnt help..

Galaxy3User said:
I flashed these files already after i got stuck at SONY logo but doesnt help..
Click to expand...
Click to collapse
What does mean "doesnt help" ?
What are you trying to do and dont work, what is messages, what happens, did you have newest version of FlashTool, did you have installed ADB drivers, what's the error ?

TopperBG said:
What does mean "doesnt help" ?
What are you trying to do and dont work, what is messages, what happens,
did you have newest version of FlashTool, did you have installed ADB drivers,
what's the error ?
Click to expand...
Click to collapse
I mean when i flash this .ftf and reroot and install CWM all works fine.
But when I try to flash any ROM and doing all wipes etc. correctly it still gets stuck at SONY logo!
I have newest version of flashtool and ADB drivers installed. In flashtool there is no error.

Galaxy3User said:
I mean when i flash this .ftf and reroot and install CWM all works fine.
But when I try to flash any ROM and doing all wipes etc. correctly it still gets stuck at SONY logo!
I have newest version of flashtool and ADB drivers installed. In flashtool there is no error.
Click to expand...
Click to collapse
Which ROM are you trying to flash?
Is that ROM for locked BL ?

[FIXED] Xperia Stuck at Logo and more

So, Hello. I will tell you the story:
After 2 days of searching on my own, instead of starting a topic, but just searching for a topic, i am starting a topic myself, because i dont know what to do know anymore.
Here is how it started:
I rooted my phone with Doomlord root, worked fine, Tried installing CWM recovery, Didnt work fine at first, but found an simple app which gave me CWM recovery version 5 ( Outdated, i know)
Then i was trying to flash Xperia Ultimate HD on it, so i did it, cleared everything and booted up, worked, but glitchy ( Buttons too high, didnt look like how it was promised on screens) I readed again, and found out that i just flashed the ROM Ultimate HD, and that you needed Ultimate HD 3.0 installed first, So i did what it said, and installed Xperia Ultimate HD 3.0 ( i suppose there is a modified kernel inside that ROM and thats why you need that first), wiped everything again, and installed The ROM i already installed before, again. And from this point on, it was stuck. I see the FREE XPERIA Logo, and then it goes black, i can get into Recovery ( with CWM Recovery) and i can get into Flashmode and Fastboot, although everytime i go into flashmode and try to flash back to stock with an stock ftf, it says Flash failed! Now turn on phone and enable USB debugging
Also EMMA doesn't work as it wont recognize my device, and Update service won't work either, because that doesnt recognize my device either.
Does someone has a fix for this? :-$ I hope so! Is there maybe a way to flash something with CWM?
Please let me know!
Thanx!
Tico

Hi ! First, is your bootloader unlocked ?

xdlol123321 said:
Hi ! First, is your bootloader unlocked ?
Click to expand...
Click to collapse
Yes. And Rooted

humm free xperia logo? have you flashed kernel yet?I am not sure UHD 3.0 used free xperia kernel(CM kernel). Search and flash ICS kernel http://forum.xda-developers.com/showthread.php?t=1867265 from fastboot and go to CWM recovery and install UHD 3 again.you might have flashed wrong kernel.

shoeseat said:
humm free xperia logo? have you flashed kernel yet?I am not sure UHD 3.0 used free xperia kernel(CM kernel). Search and flash ICS kernel http://forum.xda-developers.com/showthread.php?t=1867265 from fastboot and go to CWM recovery and install UHD 3 again.you might have flashed wrong kernel.
Click to expand...
Click to collapse
Thanks! I flashed Vengeance Kernel and it worked! Thanks for saving my phone, mate!
This topic can be locked
Cheers!

Tlcoman said:
Thanks! I flashed Vengeance Kernel and it worked! Thanks for saving my phone, mate!
This topic can be locked
Cheers!
Click to expand...
Click to collapse
No problem.Try to read descriptions of ROMs before flashing it,you need to flash compatible kernel(if you don't have already) before flashing ROMs. Happy flashing

[Q] [ARC S] getting bootloop after successfull install of "ultimate hd 4.0"

hi
this is the first time i am trying to install a custom rom. after reading a lot i never tried to actualy modify my arc s, but today was the day!
i tried with this one: http://forum.xda-developers.com/showthread.php?t=1920207
now i have some specific questions to find out why i am getting a bootloop (screen gets black and shows "SONY" over and over again).
right now i am on stock rom and kernel again: model: LT18i / android 4.0.4 / kernel 2.6.32.9-perf [email protected] #1 / build 4.1.B.0.587
i followed the how-to in the thread in every step besides one: "For Locked Bootloaders: Root your phone using this tutorial, than install CWM using this app" i did not use the linked tutorial because at first i just wanted root and found this "one click" method: http://forum.xda-developers.com/showthread.php?t=2219711
this method worked for me and i already was able to use superuser. having a working superuser app i decided to go on with the tutorial and used x-parts to install CWM.
after that i did everything like in the how-to, going through the aroma installer, successfully installed the rom, reboot through the recovery menu -> bootloop.
after many hours and tries i decided to open a thread and hope that someone can help me to solve my problem.
thanks!
EDIT: about the bootloader. on my device it says "bootloader unlock allowed: yes" and the number that is mentioned here: http://forum.xda-developers.com/showthread.php?t=2375463 for me is 12W20
can i unlock the bootloader or not? i am realy confused with everything right now...

genesis86 said:
EDIT: about the bootloader. on my device it says "bootloader unlock allowed: yes" and the number that is mentioned here: http://forum.xda-developers.com/showthread.php?t=2375463 for me is 12W20
can i unlock the bootloader or not? i am realy confused with everything right now...
Click to expand...
Click to collapse
Yes, you can still unlock the bootloader, by using the official method at unlockbootloader.sonymobile.com.

thanks for your reply. in the roms thread it says that it can be installed with locked bootloader.
i have root and superuser works. next i used this: (imagine a link to google play x-parts :laugh to install cwm and then i continued with the how-to as it says:
...
Place ROM on SD-Card
Back up user apps and data. (Various apps available, search Google Play. This is a popular one)
Power off phone.
Boot to CWM (Keep pressing the Volume Down key after the Sony logo appears)
Wipe Data/Factory Reset
Mounts and Storage --> Format /System
Advanced > Wipe Battery Stats
Install zip from SD card > Choose Xperia Ultimate HD
Follow on screen instructions on AROMA.
After Complete Installation untick "reboot" and select reboot in CWM
any idea why i get a bootloop after installing the rom? oh...and i still don't get it how to start my phone directly in cwm recovery. i tried to push or hold different buttons. right now i saw the recovery menu only because i chose to reboot to recovery in the x-parts app. sorry, if similar questions have been already asked, but i don't get it
EDIT: is the kernel and/or stock rom a problem maybe? can i install the custom rom starting from: model: LT18i / android 4.0.4 / kernel 2.6.32.9-perf [email protected] #1 / build 4.1.B.0.587?

Did you flash this? I never tried install any kernel or ROM on locked bootloader, so my phone is unlocked. I read this tutorial and i succesfully installed this ROM on my ARC without bootloop. BTW i using LuPuS v16 kernel, not vengeance...

genesis86 said:
thanks for your reply. in the roms thread it says that it can be installed with locked bootloader.
i have root and superuser works. next i used this: (imagine a link to google play x-parts :laugh to install cwm and then i continued with the how-to as it says:
...
Place ROM on SD-Card
Back up user apps and data. (Various apps available, search Google Play. This is a popular one)
Power off phone.
Boot to CWM (Keep pressing the Volume Down key after the Sony logo appears)
Wipe Data/Factory Reset
Mounts and Storage --> Format /System
Advanced > Wipe Battery Stats
Install zip from SD card > Choose Xperia Ultimate HD
Follow on screen instructions on AROMA.
After Complete Installation untick "reboot" and select reboot in CWM
any idea why i get a bootloop after installing the rom? oh...and i still don't get it how to start my phone directly in cwm recovery. i tried to push or hold different buttons. right now i saw the recovery menu only because i chose to reboot to recovery in the x-parts app. sorry, if similar questions have been already asked, but i don't get it
EDIT: is the kernel and/or stock rom a problem maybe? can i install the custom rom starting from: model: LT18i / android 4.0.4 / kernel 2.6.32.9-perf [email protected] #1 / build 4.1.B.0.587?
Click to expand...
Click to collapse
Flash stock again
Root
And try again
Do a full wipe i.e wipe data, battery stats, and system then flash again, plz pick right options in aroma like locked bootloader, and then untick reboot in aroma and reboot thru CWM
Sent from my LT18i

HUD 4.0 boot loop on xperia arc s
Hi,
I have same problem, when I upgrade my xperia arc s from UHD 3.0.2 to 4.0 I get boot loop.
I have locked boot loader and UHD3.0.2 installs fine and don't get any boot loop. I tried both option upgrade and complete install for UHD 4.0 but no luck.
Any one can help me out?
thanks

imcupid said:
Hi,
I have same problem, when I upgrade my xperia arc s from UHD 3.0.2 to 4.0 I get boot loop.
I have locked boot loader and UHD3.0.2 installs fine and don't get any boot loop. I tried both option upgrade and complete install for UHD 4.0 but no luck.
Any one can help me out?
thanks
Click to expand...
Click to collapse
Tried full wipe? Which phone, kernel? If ARC or ARC S, try flash .ftf file, kernel and try install UHD 4.0. Look my previous post in this thread.

Sahaab said:
Flash stock again
Root
And try again
Do a full wipe i.e wipe data, battery stats, and system then flash again, plz pick right options in aroma like locked bootloader, and then untick reboot in aroma and reboot thru CWM
Sent from my LT18i
Click to expand...
Click to collapse
thanks for trying to help. after doing the same thing over and over again i decided to try a different rom and it works. i just wiped everything you need to wipe for installing a new rom and i am now on jelly dream 4.5 and the kernel from the step by step tutorial (Kernel_Vengeance_Ayame.zip).
offtopic: i could not find a support thread for jelly dream and i can't post in the mainthread. is there a q&a thread for this rom or should i open a new topic?

Kepta Duona said:
Tried full wipe? Which phone, kernel? If ARC or ARC S, try flash .ftf file, kernel and try install UHD 4.0. Look my previous post in this thread.
Click to expand...
Click to collapse
thanks for the tft file, I flashed that one and after install UHD 4.0. It worked fine.
thanks for helping me out.

Hiii
You can use the Flashtool Version 0.9.11.0 [Thanks to Androxyde :good:]
There are things in this application. Include: Root device, Bootloader Unlock, Flash kernel and Flash ROM.
By fastboot mode in Flashtool you can install any kernel and after turn on your device using CWM and install any ROM.
In here you can find many ROMs and Kernels [Thanks to Xerxin :good:]