Custom kernel on locked bootloader - Xperia Arc Q&A, Help & Troubleshooting

Hello world,
I want to install this custom rom (http://forum.xda-developers.com/showthread.php?t=1836993)
The problem is that i'm running the official 2.4.3 android version from sony. They still haven't released the update to ICS for my country
My bootloader is locked and i'm unable to unlock it without paying (Bootloader unlock allowed: No)
Is it possible that i install any custom kernels? Or can i maunally update to ICS, and get the stock ICS kernel? I would install the custom rom with the stock ICS kernel.
I would be thankful if you send me a link for downloading the official ICS and its kernel.
My phone is the Xperia Arc S (LT18i)
Thanks!

No unlocked bootloader, no custom kernel.
Sent from my CM9'd Arc

XperienceD said:
No unlocked bootloader, no custom kernel.
Sent from my CM9'd Arc
Click to expand...
Click to collapse
But can i flash the stock ICS kernel?

No unlocked bootloader, no flashing kernels.
Sent from my CM9'd Arc

malimukk said:
But can i flash the stock ICS kernel?
Click to expand...
Click to collapse
Yes, if it is fully stock and officially signed kernel.
That is - you can only flash that kernel via Flashtool .FTF file.
No other way.

Someguyfromhell said:
Yes, if it is fully stock and officially signed kernel.
That is - you can only flash that kernel via Flashtool .FTF file.
No other way.
Click to expand...
Click to collapse
Would you please send me a link where I can download the stock kernel?
And, do you recommend updating my xperia to ICS?

malimukk said:
And, do you recommend updating my xperia to ICS?
Click to expand...
Click to collapse
No - ICS on the 2011 Xperia line-up is worthless and not worth it.
Skickat från min LT18i via Tapatalk 2

Someguyfromhell said:
Yes, if it is fully stock and officially signed kernel.
That is - you can only flash that kernel via Flashtool .FTF file.
No other way.
Click to expand...
Click to collapse
Thanks for clearing that up.
Sent from my CM9'd Arc

If you do want to give ICS a try, flash tool is the first link. The second link is ftf file for LT18i. (The kernel is embedded in to the ftf file). Flash tool is very simple and walks you through the steps.
http://forum.xda-developers.com/showthread.php?t=1000012
http://forum.xda-developers.com/showthread.php?t=1847626
I do agree with the previous posts by the way that it is slower, but I like the features

Destroyedbeauty said:
No - ICS on the 2011 Xperia line-up is worthless and not worth it.
Skickat från min LT18i via Tapatalk 2
Click to expand...
Click to collapse
Yes, but only with the latest 587 firmware, other official Sony ICS firmware slow you phone and give you a very bad ICS trip

spidermoon said:
Yes, but only with the latest 587 firmware, other official Sony ICS firmware slow you phone and give you a very bad ICS trip
Click to expand...
Click to collapse
Every fully stock and signed kernel can be installed with locked bootloader. GB and ICS.

Related

4.0.2.a.0.62 arc s root

hi i gust wanted to know about 4.0.2.a.0.62 arc s root
is there any way to root 4.0.2.a.0.62 devises ?
their is just unlock ur bootloader then ! im satisfied .58 il wait for ICS to come
or you can downgrade to .42, and root. I did the same thing, and removed few built in apps that I don't use, and every morning I get 200MB of free RAM, and in normal usage I get 170MB free RAM + the phone got a lot faster than it was on .62
But I dont want to unlock bootloader and lose the warranty and OTA update
Sent from my LT18i using XDA App
Downgrade to .42 build and root.
There are some root methods for .62, but idk. Just look and search.
Sent from my LT18i using xda premium
did, you get the over the air update, or did you use flashtool or wotan, i'm still on .42 and it won't give me the update
dp94 said:
Downgrade to .42 build and root.
There are some root methods for .62, but idk. Just look and search.
Sent from my LT18i using xda premium
Click to expand...
Click to collapse
But downgrade needs an unlocked bootloader right ?
Sent from my LT18i using XDA App
AwesomeAHlee said:
did, you get the over the air update, or did you use flashtool or wotan, i'm still on .42 and it won't give me the update
Click to expand...
Click to collapse
I don't know my device was pre upgrade to .62
I'm waiting for ICS OTA update
I recommend u not to update to.62
Due the root issue
Sent from my LT18i using XDA App
AwesomeAHlee said:
did, you get the over the air update, or did you use flashtool or wotan, i'm still on .42 and it won't give me the update
Click to expand...
Click to collapse
use "Sony Ericsson PC Companion 2.0"..hit thanks button if this help u..
ghayath ameer said:
But downgrade needs an unlocked bootloader right ?
Sent from my LT18i using XDA App
Click to expand...
Click to collapse
I downgraded using Flashtools and didn't have to unlock my boot loader, just flash the system file, and the kernel file. and you will be fine
DeepUnknown said:
I downgraded using Flashtools and didn't have to unlock my boot loader, just flash the system file, and the kernel file. and you will be fine
Click to expand...
Click to collapse
Aha .. Can u mention the way u did to downgrade
Sent from my LT18i using XDA App
ghayath ameer said:
Aha .. Can u mention the way u did to downgrade
Sent from my LT18i using XDA App
Click to expand...
Click to collapse
I did it just few minutes ago and no need unlock BL
1. Flash to 42 or 58 firmware by flashtool. I download from below linkhttp://forum.xda-developers.com/showthread.php?t=1357841
2. Root ur phone by flashtool again.
U can change the CDA before use US or PCC then back to orginal 62 FW.
Cheers
PS.sorry my poor english
Solved
1. Unlock the Bootloader
2. Install Doomlord Stock Kernel 1.6 ( Pre rooted)
3. Install .62 stock Kernel from .ftf file (Root remains from Doomlord Stock Plus Kernel 1.6 even after installing .62 Rom kernel agian)
4. Re-lock the bootloader with the help of Flashtool.
5. You have Stock ROM rooted and with locked bootloader.
....Worked like Charm for me on my Arc s (LT18i, .62 ROM)
Hi,
I have a question.
Can I flash lt15i(arc) roms to lt18i(arc s)?If I flash lt15i roms may I expose oneself a problem?Can It(arc roms) work on my arc s?
And,I can not found arc s rom(.42 or .62).I had to flash old verison of rom.It is 4.0.1.A.268.
I want to upgrade to new version(.42)or better version.
Can anyone help me?
Excuse me (for my englhesh(englesh) ) ok english(I know it was bad joke )
BehnanBalaban said:
Hi,
I have a question.
Can I flash lt15i(arc) roms to lt18i(arc s)?If I flash lt15i roms may I expose oneself a problem?Can It(arc roms) work on my arc s?
And,I can not found arc s rom(.42 or .62).I had to flash old verison of rom.It is 4.0.1.A.268.
I want to upgrade to new version(.42)or better version.
Can anyone help me?
Excuse me (for my englhesh(englesh) ) ok english(I know it was bad joke )
Click to expand...
Click to collapse
Download Arc S LT18i (4.0.2.a.0.62 Offical ROM) : http://www.mediafire.com/?6fs6iry9spv78mb
You can install Arc Rom on ARC S by some tweaks but it makes your ARC S slow as the default CPU speed in ARC is 1 Ghz and our ARC S is 1.4 ghz by default.
Download the .ftf file from the above link and install it through Flash Tool.
@jaipurwasi80 Thank for answer and help.
I think the problem(arc s as arc(cpu)) can fix with overlock and upgrade 1,6 or 2,0 ghz,cant it?
BehnanBalaban said:
@jaipurwasi80 Thank for answer and help.
I think the problem(arc s as arc(cpu)) can fix with overlock and upgrade 1,6 or 2,0 ghz,cant it?
Click to expand...
Click to collapse
Yes you can Overclock and set the CPU speed at 1.4 ghz or more......If you like my comment please press Thanks button.
jaipurwasi80 said:
Yes you can Overclock and set the CPU speed at 1.4 ghz or more......If you like my comment please press Thanks button.
Click to expand...
Click to collapse
Sorry but this file hasn't been worked and did error,my phone could brick,something has gone wrong,I think you should fix something or you can damage to some devices...
BehnanBalaban said:
Sorry but this file hasn't been worked and did error,my phone could brick,something has gone wrong,I think you should fix something or you can damage to some devices...
Click to expand...
Click to collapse
I have used the same file for my Arc S( LT18i) and its worked fine for me along with the Latest Flash tool. I hope you are using the .ftf file in Flashtool and your phone in flashboot mode.
OR
Go to www.wotanserver.com and download its client on your PC to Install any Offical Sony Ericsson ROM. You need to make a free account on the site and while installing you can choose to install 4.0.2.a.0.62 offical ROM.
---------- Post added at 11:56 PM ---------- Previous post was at 11:52 PM ----------
jaipurwasi80 said:
I have used the same file for my Arc S( LT18i) and its worked fine for me along with the Latest Flash tool. I hope you are using the .ftf file in Flashtool and your phone in flashboot mode.
OR
Go to www.wotanserver.com and download its client on your PC to Install any Offical Sony Ericsson ROM. You need to make a free account on the site and while installing you can choose to install 4.0.2.a.0.62 offical ROM.
Click to expand...
Click to collapse
BehnanBalaban said:
Sorry but this file hasn't been worked and did error,my phone could brick,something has gone wrong,I think you should fix something or you can damage to some devices...
Click to expand...
Click to collapse
See this video to understand how Wotanserver work : www.youtube.com/watch?v=ZQIw608rZfI

[Q] what is the fastest ICS Firmware for Xperia ARC ?

Hi
I have flashed the global ICS firmware for my xperia arc ! i really like it but it is not as smooth as the gingerbread. I know the firmware is full of bloatware and thats why its a bit laggy..
My question is there a ROM (modified firmware) which i can flash to make the ics run smoothly and faster on my arc ??
Try Arconium.
xtacy! said:
Try Arconium.
Click to expand...
Click to collapse
its a bit complicated to install this and i have to unlock my boatloader.
is there a firmware that i can flash it via flashtool !! the easy way ??
philansel7 said:
its a bit complicated to install this and i have to unlock my boatloader.
is there a firmware that i can flash it via flashtool !! the easy way ??
Click to expand...
Click to collapse
Till Now Generic Global World Firmware is BEST.
Cm7 only
AOKP! But needs unlocked bootloader..
Sent from my LT15i using XDA
I'm using the World Generic 4.04 stock rom, and find it occasionally locks up and crashes, I do like the feel and style of ICS but dont think its been perfected for the Arc yet, if I could unlock my bootloader i'd try other roms, so its between ICS or Gingerbread for me
kidicarus1602 said:
I'm using the World Generic 4.04 stock rom, and find it occasionally locks up and crashes, I do like the feel and style of ICS but dont think its been perfected for the Arc yet, if I could unlock my bootloader i'd try other roms, so its between ICS or Gingerbread for me
Click to expand...
Click to collapse
how this could Happen.
Global version; of firmware is best with least bloatware.
Sent from my LT15i using Tapatalk 2
AOKP
philansel7 said:
Hi
I have flashed the global ICS firmware for my xperia arc ! i really like it but it is not as smooth as the gingerbread. I know the firmware is full of bloatware and thats why its a bit laggy..
My question is there a ROM (modified firmware) which i can flash to make the ics run smoothly and faster on my arc ??
Click to expand...
Click to collapse
soumya_digi said:
AOKP! But needs unlocked bootloader..
Sent from my LT15i using XDA
Click to expand...
Click to collapse
+1
AOKP & sirkey'a kernel, enough said and definitely worth getting your bootloader unlocked
I'm not that overwhelmed by Arconium, which AOKP Rom?
Tapa2
dannyb0i said:
+1
AOKP & sirkey'a kernel, enough said and definitely worth getting your bootloader unlocked
Click to expand...
Click to collapse
thx i will try it
Having jjs hybrid rom installed now. Feels much better..
Tapa2 desire s

Rom Arc S

Hi everyone.
I tried to find information about it, but i have not found.
I read somewhere that I can install only the rom based on the original firmware in my Xperia Arc S (LT18i), so I do not think i can do what I have in mind.
I would like to install a CM9 (or CM10 as soon as possible). Can i install a CM9 anzu (LT15i) on my device?
Thanks
Ofcourse!
Sent from my LT18i using Tapatalk 2
There isn't any particular process or way to flash an anzu rom?
lukedc89 said:
There isn't any particular process or way to flash an anzu rom?
Click to expand...
Click to collapse
In fact there is. You should first flash a compatible kernel with fastboot or flashtool, and then the Rom itself. Sad, but true.
Sent from nowhere

[Q] some questions about roms

Hi there, I have some questions about roms of sony xperia s.
where can I get the newest offical firmware like this: LT26i(4.0.4)_6.1.A.2.55_Generic_SG(1257-6921).rar (.elf file)
can I use Flashtool to flash these offical firmware ?
what dose ICS17.elf mean? I have flashed this file by using fastboot, and got my phone rooted and got a CMW recovery.
many thanks
lfhis5 said:
Hi there, I have some questions about roms of sony xperia s.
where can I get the newest offical firmware like this: LT26i(4.0.4)_6.1.A.2.55_Generic_SG(1257-6921).rar (.elf file)
can I use Flashtool to flash these offical firmware ?
what dose ICS17.elf mean? I have flashed this file by using fastboot, and got my phone rooted and got a CMW recovery.
many thanks
Click to expand...
Click to collapse
1. Get it from Here
2. Yes, sure.
3. ICS17 is the modified stock kernel added more features than stock one
Hold on.......
If you've flashed the ics17 kernel then you've unlocked the bootloader yes?
Then scrap off any ics rom and flash Jellybean
Sent from my Android 4.2.2 Xperia S
Ben36 said:
Hold on.......
If you've flashed the ics17 kernel then you've unlocked the bootloader yes?
Then scrap off any ics rom and flash Jellybean
Sent from my Android 4.2.2 Xperia S
Click to expand...
Click to collapse
Is there any stock Jellybean for Xperia S?
Not official Sony if that's what you mean?
Sent from my Android 4.2.2 Xperia S
Ben36 said:
Not official Sony if that's what you mean?
Sent from my Android 4.2.2 Xperia S
Click to expand...
Click to collapse
I need official Sony 's rom.
I see. Then flashing the 55 ftf would be best. How come you must have Sony only?
Sent from my Android 4.2.2 Xperia S

Rom XZXperience 2

I have rom ICS v55. May be update Rom XZXperience 2 ?? I not UB.
Rom XZXperience requirement
Locked bootloader
1) If you are not using 6.1.A.2.50, Flash official 6.1.A.2.50 with flashtool.
Sr poor Englist
I don't understand you... I can't help you.
Sent from my LT26i using xda developers-app
Vaith said:
I don't understand you... I can't help you.
Sent from my LT26i using xda developers-app
Click to expand...
Click to collapse
I have phone Acro S. Use rom Stock v.55.
XZXperience requirement Rom stock v50.
What are your other languages? Maybe I can help you.
lewis021 said:
What are your other languages? Maybe I can help you.
Click to expand...
Click to collapse
He has ACRO S, running Stock ICS, version 0.55
But he wants to Install XZXperience 2.
He also has a locked Bootloader Device.
This is what he meant i believe?
auni said:
He has ACRO S, running Stock ICS, version 0.55
But he wants to Install XZXperience 2.
He also has a locked Bootloader Device.
This is what he meant i believe?
Click to expand...
Click to collapse
Yes.
If you have root access and a working recovery, then skip step 1
0908242272 said:
Yes.
Click to expand...
Click to collapse
Just flash the zip file via CWM. That's what I did. I didn't do any wipes, works perfectly.

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