Develop Bugs

[Q]{ARC S} How to get into Download Mode?

Hey @ all
i'm a new SE Arc S user and saw my friend using a custom rom on his galaxy s so i decided to give it a try myself ^^
reading the FAQ i got to the thread Read BEFORE flashing!!
it says before flashing i got to test if i can get into the download mode.
so i tried all three methods but i can't.
then i went through many other threads and saw that it actually works on an arc s.
so my question is how do i do it?
i already rooted my phone and i have installed the android sdk including platform-tools and the adb drivers.
additionally i tried to get into recovery mode using the button combination but it doesn't work as well.
Information to the phone:
Arc S (LT18i)
Android-Version: 2.3.4
Build: 4.0.2.A.0.42
Kernel-Version: 2.6.32.9-perf [email protected]#1
if there are any more questions just ask and i will try my best answering them ^^
hope someone can help me
stiil

You have to unlock your bootloader, push a kernel via adb, and install a custom ROM via CWM recovery.
Sent from my LT18i using XDA Premium App
EDIT:
Your guide is for the Samsung Captivate.
Start here.

Thx for your replay.
The guide you linked in your post is for an arc.
Does it work on my arc s too?

Of course, I own the Arc S too and about 95 % of the kernel/ROMs/MODs/themes/etc. works for our device too.

heey
i just unlocked my bootloader.
now i would like to back up everything so that i can switch back to the actual state of the phone.
but recovery is only described with changing the kernel.
is there a different option for a backup?

Flash this on stock kernel, go in recovery and take a backup.
Then you can push kernels, flash custom ROMs, etc.

that means if i make a backup using cwm i bavk up the kernel too?

No, you just push kernels via adb, but you can when ever you want push the stock kernel again.
Sent from my LT18i using xda premium

HELP HELP PLS I have arc s and i used some software to flash and then it reboted tel and now cant get into anything and it wont turn on help pls am desperate.....it isnt rooted....

HDmaniac said:
HELP HELP PLS I have arc s and i used some software to flash and then it reboted tel and now cant get into anything and it wont turn on help pls am desperate.....it isnt rooted....
Click to expand...
Click to collapse
Download Flashtool and ICS (4.1.B.0.587) or GB 4.0.2.A.0.62 Generic firmware, which is a FTF file, and flash it in. Will install fully stock firmware on your phone.

How can I root and flash a custom ROM?

My bootloader status says I can unlock it but my phone is on version 4.0.2.A.0.62 can someone give me a full guide on what I need to do please?
Thanks

cined said:
My bootloader status says I can unlock it but my phone is on version 4.0.2.A.0.62 can someone give me a full guide on what I need to do please?
Thanks
Click to expand...
Click to collapse
Unlock with normal method or testpoint (drm data keept)
Get root/cwm
Find your rom and fitting kernel
Flash.
If you just go first to general selection theres a lot fully made threads about unlocking and getting CWM. (on top, the pinned ones)
Then go to dev. selection so find your rom and follow the guide to flash
From my sexy LT15i

TheHaso said:
Unlock with normal method or testpoint (drm data keept)
Get root/cwm
Find your rom and fitting kernel
Flash.
If you just go first to general selection theres a lot fully made threads about unlocking and getting CWM. (on top, the pinned ones)
Then go to dev. selection so find your rom and follow the guide to flash
From my sexy LT15i
Click to expand...
Click to collapse
I'm struggling to find any guides. I only want to flash so I can get a ROM that has auto brightness turned off as on the stock ROM it's really annoying. Do I NEED to unlock my bootloader first?

Please could you break it down for me?
I'm so confused

You guys can't search? It's on stickies :/
Unlock bootloader:
http://forum.xda-developers.com/showthread.php?t=1551494
.42 downgrade .ftf img and then use zergrush exploit or pre-rooted ones
http://forum.xda-developers.com/showthread.php?t=1330314
Flash Custom Kernels and Roms:
http://forum.xda-developers.com/showthread.php?t=1508585

Here is a link where everything is explained:
http://www.theandroidsoul.com/how-to-root-xperia-arc/
If someone could verify that everything is correct, I'm French and I watch French tutorial
(Like this one: http://www.forummobiles.com/topic/241960-xperia-arc-arc-s-debrand-root-et-flash-de-baseband/)
EDIT : Retrosid is faster than me

no need to root dude if u want to install a custom ROM...just unlock the bootloader..flash a custom kernel and then flash the ROM..thats all..ROM will be pre-rooted..

In my phone settings it says my phone is LT18i does this matter for anything?

no tats just model number for arc s...
follow the method..
unlock
flash custom kernel
flash ROM
u r done!

cined said:
In my phone settings it says my phone is LT18i does this matter for anything?
Click to expand...
Click to collapse
You can change it back by editing build.prop if I remember well. It's nothing
Sent from my Xperia Arc

Retrosid said:
You can change it back by editing build.prop if I remember well. It's nothing
Sent from my Xperia Arc
Click to expand...
Click to collapse
I was just looking how to ... thank you!

arpith.fbi said:
no tats just model number for arc s...
follow the method..
unlock
flash custom kernel
flash ROM
u r done!
Click to expand...
Click to collapse
So I don't need to downgrade anything??
In those steps where do I flash CWM?

nope not required..this is the best short cut and time saving + safe...try it and let us know..
CWM is in custom kernel..u dont need to flash it seperately...

Just flash a kernel & you can use CWM to flash a rom

Thanks,
Do I just follow the steps in this link
http://unlockbootloader.sonymobile.com/
To unlock the bootloader?

yea..follow that..
All the best

I have now unlocked the bootloader
I now want to flash a custom ICS ROM, I now need to find a kernal to flash?
Thanks

yea...either stock ICS kernel or doom kernel for ICS beta..

arpith.fbi said:
yea...either stock ICS kernel or doom kernel for ICS beta..
Click to expand...
Click to collapse
Which ICS ROM Would you suggest? I just downloaded the Doom Kernel + Modules.
Thanks

I'm trying to flash the doomKernels boot.img in fastboot, I have put the ARC-DooMKernel-ICS-BETA-v04-lower-boot.img file in the platform-tools folder, I'm using the command fastboot flash boot ARC-DooMKernel-ICS-BETA-v04-lower-boot and it's saying it cannot load.
Any help please?
actually it says
'[ requirements ]
stock SE ICS Beta FW* (i havent tested on other ROMs so i cannot guarantee that it will work on them!)'
so I need to install stock firmware first?

[Q] How to Backup stock Kernel + ROM ?

Hello Guys !
I wanna try some custom ROM so before doing that want to backup my Kernel & ROM. If anything gone wrong so I can revert back to original ROM.
My Cell details:
Xperia Arc S
LT18i
Android Version 2.3.4
Baseband Version -64
Build number
4.0.2.a.0.62
Locked bootloader
& unrooted.
Please someone guide me....
Thanks in advance...

If your bootloader's locked then you can't back up. You can only reload(repair)it from PC companion.
sinkster©

Thanks sinkster !
Ok done unlocked bootloader.
Then advice the further steps...

XPERIA CWM AUTO INSTALLER
download this app and install CWM recovery on ur phone...
Then reboot ur phone into recovery mode...
TO DO THIS, LONG PRESS BACK BUTTON WHILE THE PHONE RE-BOOTS
(OR)
KEEP TAPPING VOLUME DOWN BUTTON...
After it boots into recovery, go to BACKUP & RESTORE and Select Backup...
This will create a NANDROID BACKUP on your phone exactly as it is...including apps n contacts n all other data..
you can find it in SDCARD/Clockworkmod/Backup/
Good day...

If you wanted to take a backup without installing CWM you can use fastboot to boot (not flash) a kernel that has CWM built in.

thanks amulbaby
I will try and get back here with comment ...
EDIT:
I tried that steps but it will works only on rooted phone ..., can not enter in to recovery mode by pressing any key, it normally boots up and appear home ...

smartarse93 said:
If you wanted to take a backup without installing CWM you can use fastboot to boot (not flash) a kernel that has CWM built in.
Click to expand...
Click to collapse
How to do so... any guide links pls .. .

ShresthasR said:
thanks amulbaby
I will try and get back here with comment ...
EDIT:
I tried that steps but it will works only on rooted phone ..., can not enter in to recovery mode by pressing any key, it normally boots up and appear home ...
Click to expand...
Click to collapse
Why don't you root it with flashtool then?
But for that u wud have to downgrade to .42, with flashtool before rooting

Hey I am also wondering about this. I have lt15i flashed with Official .562, locked bootloader and CWM installed via flashtool.
Which ICS roms will work with official .562 and locked bootloader? I have been searching all morning but not a lot of updates regarding this since the official .562 release.

djsneak1 said:
Hey I am also wondering about this. I have lt15i flashed with Official .562, locked bootloader and CWM installed via flashtool.
Which ICS roms will work with official .562 and locked bootloader? I have been searching all morning but not a lot of updates regarding this since the official .562 release.
Click to expand...
Click to collapse
PROBABLY THIS ..... NOT SURE ....
T.E.A.M. Stock Rom for 2011 Xperia devices

amulbaby said:
Why don't you root it with flashtool then?
But for that u wud have to downgrade to .42, with flashtool before rooting
Click to expand...
Click to collapse
Here is the point I was looking for these alternative . . .
I have STOCK ROM with 4.0.2.a.0.62, actually I want to backup these stuff, I read about that downgrading via flashtool and root, if I flashed via flashtool that STOCK ROM will wipe...
Anyway here what I did to make a copy of my stock firmware & upgraded to ICS firmware & rooted.
Repaired my phone using Sony update service to download and backup STOCK firmware
Flashed with flashtool official firmware LT18i 4.1.A.0.562 NCB Icecream Sandwich Official

First you need to download a kernel that has cwm built in, I would search for recoveryARC.IMG then you also need fastboot from the SDK.
All you would do is connect your phone I'm fastboot then run in a command prompt fastboot boot recoveryARC.IMG. Your phone would then boot using that kernel and you can enter cwm by pressing the vol down several times. This process wouldn't flash your kernel only load it temporarily.
I would try and find a guide about them but I'm on my phone.
Sorry just noticed you've already done it, congrats enjoy ics.
Sent from my LT18i using XDA

smartarse93 said:
First you need to download a kernel that has cwm built in, I would search for recoveryARC.IMG then you also need fastboot from the SDK.
All you would do is connect your phone I'm fastboot then run in a command prompt fastboot boot recoveryARC.IMG. Your phone would then boot using that kernel and you can enter cwm by pressing the vol down several times. This process wouldn't flash your kernel only load it temporarily.
I would try and find a guide about them but I'm on my phone.
Sorry just noticed you've already done it, congrats enjoy ics.
Sent from my LT18i using XDA
Click to expand...
Click to collapse
Thanks bro ...
I already upgraded, anyway I want to know the process, you mentioned here this process wouldn't flash kernel only load it temporarily, I am confused...
Could you describe in details .. ? Actual what happens if we flash recovery img...

Well you can use fastboot to install the kernel which overwrites the previous one, or you can use it boot the kernel which just sends the kernel to the phone which the boots and temporarily uses the kernel. However when the phone next shuts down it will return to normal use.
If you flash a kernel it writes the .IMG to the boot partition. So if I wanted to use a kernel that stayed between reboots I would use 'fastboot flash boot kernelname.IMG'
However if I was running stock I could use recoveryARC.IMG with cwm, and do fastboot boot recoveryARC.IMG then run update.zip as normal. Then all you have to do is reboot, you'll be back to stock but the update would still be installed.
Sorry if it's not cleat, the best I could do on my phone.
Sent from my LT18i using XDA

Please elaborate on backing up STOCK ROM
ShresthasR said:
Here is the point I was looking for these alternative . . .
I have STOCK ROM with 4.0.2.a.0.62, actually I want to backup these stuff, I read about that downgrading via flashtool and root, if I flashed via flashtool that STOCK ROM will wipe...
Anyway here what I did to make a copy of my stock firmware & upgraded to ICS firmware & rooted.
Repaired my phone using Sony update service to download and backup STOCK firmware
Flashed with flashtool official firmware LT18i 4.1.A.0.562 NCB Icecream Sandwich Official
Click to expand...
Click to collapse
Can you please give me details on you did this? It is precisely what I want to do (ie. Backup the stock carrier rom on my Xperia Arc before flashinging an old ROM in order to root it).
Did you use the "repair" option from "Sony PC Companion 2.1>Support Zone>Phone software update>repair phone"?
Or did you use the software from here: http: // w ww(dot)sonymobile(dot)com/gb/tools/update-service/
Can you please tell me the whole procedure on how you did the backup of the STOCK ROM? Thanks!

King of Procrastinators said:
Can you please give me details on you did this? It is precisely what I want to do (ie. Backup the stock carrier rom on my Xperia Arc before flashinging an old ROM in order to root it).
Did you use the "repair" option from "Sony PC Companion 2.1>Support Zone>Phone software update>repair phone"?
Or did you use the software from here: http: // w ww(dot)sonymobile(dot)com/gb/tools/update-service/
Can you please tell me the whole procedure on how you did the backup of the STOCK ROM? Thanks!
Click to expand...
Click to collapse
Actually what I did just followed this guide
http://forum.xda-developers.com/showthread.php?t=1304634
At this thread just follow the video tutorial under section
"How to backup your carrier firmware using Update Service"
Youtube link: http://youtu.be/bB77gWRUI_A
Thanks XperienceD for nice guide

just want to ask, does CWM backup also backups the kernel or firmware?
and how do i restore stock kernel with or without using ODIN?
how do i go on flashing custom firmware? i really do need explanation especially for the .img file that i have been seeing guys.
please help me out because i really want to learn more about software and stuff.
thank you very much and god bless you guys.

ROM backup OK; How to take backup of Kernel
I am using Sony Xperia Ray ST18i
used it for a year with stock kernel and ROM
rooted it long ago, but was afraid of custom ROMs
last month I unlocked bootloader, flashed ROM and custom ROM (beanstalk 4.3.075), enjoying it but obviously not so stable like stock
Now if I wish to move back to my stock kernel and ROM
what steps are required.
I suppose
1. flash the stock kernel
2. restore from backed up ROM (I do have nandroid backup of stock ROM)
but how to achieve the step 1, as I learnt nandroid backup doesn't backs up ROM.
My collegue is having same phone still on stock, Can I use his phone somehow to extract kernel. I searched and found a zip to be used through CWM which backs up kernel it was meant for some samsung phone I tried but failed.
Thanks in advance.
Do I need to supply some more information to get help?

Backup stock ROM
I used this backup guide, but dont know if it will work for you http://helpadude.com/how-to-backup-your-android-rom/
If it does plz give thanks

[Q] Rogers xperia arc

Hi every one I have rogers arc running on the latest ice rooted Bootloader was locked. I did bootloader unlock with test point.The flash tool saying that bootloader is rooted but I cannot flash any custom rom or even a backup I usually can't pass Sony screen any input is appreciated.

zaky1 said:
Hi every one I have rogers arc running on the latest ice rooted Bootloader was locked. I did bootloader unlock with test point.The flash tool saying that bootloader is rooted but I cannot flash any custom rom or even a backup I usually can't pass Sony screen any input is appreciated.
Click to expand...
Click to collapse
Just use flashtool to flash the rom again man, i think u should flash the stock rom firs
If it's ok, then flash your custom rom

I am running the official rom no problem it's not allowing me to flash any custom roms in the recovery mod. I cam reboot to recovery either by x-part or holding the menu key while it start.:crying:

zaky1 said:
I am running the official rom no problem it's not allowing me to flash any custom roms in the recovery mod. I cam reboot to recovery either by x-part or holding the menu key while it start.:crying:
Click to expand...
Click to collapse
I think u need to unlock ur bootloader first
If not, try to find rom that can use with locked bootloader
Sent from my Xperia Arc S using xda premium

My bootloader is rooted with Test point method

zaky1 said:
My bootloader is rooted with Test point method
Click to expand...
Click to collapse
You unlock your boot loader with the test point, not root. So please be clear about what you've actually done.
Sent from my CM9'd Arc

Yes I unlocked my bootloader with test point ***but on service menu still say no** but on flashtool was saying bootloader unlocked B4 i did the test point and after it say bootloader is rooted

Have you flashed the kernel?

Which kernel Iam running the offecial kernel

zaky1 said:
Which kernel Iam running the offecial kernel
Click to expand...
Click to collapse
If you want to use a custom ROM then 9 times out of 10 you'll need to use a specific kernel, usually one that comes with CWM.

I know exactly how to flash custom rom, I am coming from MT4G the problem after you flash the rom the phone dosn't boot in recovery it just stay at sony logo, even when i try to boot in fastboot mod dosn't allow me only booting in recovery.

zaky1 said:
I know exactly how to flash custom rom, I am coming from MT4G the problem after you flash the rom the phone dosn't boot in recovery it just stay at sony logo, even when i try to boot in fastboot mod dosn't allow me only booting in recovery.
Click to expand...
Click to collapse
Try this....
1. Flash ur stock ICS firmware 4.1.B.431 ... 2. Don't let it upgrade to the latest firmware (in Canada I got N update that changed my firmware to 4.1.**.587 or something like that)
3. Then flash ur phone with the rootable firmware of xperia generic world version...
4. Flash the kernels for that firmware .. even the stock ICS would be OK..
5. Root the phone using Doomlords method of rooting... Its the best...!
6. At last reboot ur phone ..n violaaa...
U have a completely rooted phone ..!
P.s. make sure u see the log while u root ur phone . It may say rooted successly even if it had some errors... so make sure other are no errors..!
I had the same problem when I decided to unlock boot loader n root it for the first time ... so no worries my friend ...try this .. n it will work for sure.. !
Sent from my Xperia Arc using xda app-developers app
Did u hit the thanks button ? :thumbup:

Hi my friends thanks for the reply but my phone is already rooted and i can go to recovery mod even i did the trick of link2sd which increased my internal memory I am running the north america firmware not Rogers firmware

What Kernel and ROM !?

rom 4.1.b.0.587 kernel official

zaky1 said:
Hi my friends thanks for the reply but my phone is already rooted and i can go to recovery mod even i did the trick of link2sd which increased my internal memory I am running the north america firmware not Rogers firmware
Click to expand...
Click to collapse
I know ur phone is rooted ..but if u try again ..with the world firmware ..it will b rooted perfectly n won't stuck on boot..!
Sent from Xperia arc ..XDA premium app..
dont foget to hit the thanks button

I will Give it a try and let you know. Thanks man

Would u mind if i ask u something...!! dnt b offended..!! I know u might hav already done this ..but stil ..!!
1. If u r flashing the custom rom with flashtool right .?? and while doing tht are u pressing the back key ...or the menu key of ur phone .??
2. If u havent flashed any custom rom untill yet..n still on north america firmware.. then try to re-root it ...and then install CMW via this link..!!
https://www.dropbox.com/sh/ohrj5dosijil1od/t_3-MoTVc6
read the recovery.txt file...it shows how to install the cmw...!! n then try to flash a custom rom via CWM ...n lemme know..!!!
cheers..!!
did u hit the thanks button yet.?? :laugh::good:

I think you can't flash custom rom from flash tool it must be flashed from you sd card because it is a zip file. I tried to flash recovery mode you supplied the link with no go.

So u did root and installed cwm by the link I gave right ?
N it showed that .. installation complete.. ?
N now ..the problem is ..
that u cannot enter recovery mode
To flash a custom ROM ?
Am I right ?
Sent from Xperia arc ..XDA premium app..
dont foget to hit the thanks button

[Q] flashing kernels with flashtool

hi guys i wanted to root my xperia s jelly bean and i found doomloard advance kernel with cwm in the thread they say flash it in fast boot mode but i want to flash it with flash tool because it is easier than fastboot .
is there any way to flash this (kernel.elf) with flashtool ?

KARZANNAWZAD said:
hi guys i wanted to root my xperia s jelly bean and i found doomloard advance kernel with cwm in the thread they say flash it in fast boot mode but i want to flash it with flash tool because it is easier than fastboot .
is there any way to flash this (kernel.elf) with flashtool ?
Click to expand...
Click to collapse
Flashboot is not a software , you can flash kernel using flashtool.
You need flashboot to flash kernel, If your bootloader is locked you don't have access to fastboot.
So unlock boot loader first
Read this tutorial.
Its easy.

KARZANNAWZAD said:
hi guys i wanted to root my xperia s jelly bean and i found doomloard advance kernel with cwm in the thread they say flash it in fast boot mode but i want to flash it with flash tool because it is easier than fastboot .
is there any way to flash this (kernel.elf) with flashtool ?
Click to expand...
Click to collapse
Read this to learn how to use fastboot in flashtool to flash kernels: http://forum.xda-developers.com/sho...img / kernel.elf / kernel.sin using flashtool.
Remember your bootloader needs to be unlocked! And that kernel isn't auto rooted as far as I know, it's just stock kernel with CWM. But there is a file you can flash with that CWM to root, Doom has linked to it I think. There's another way to root as well, bset check a few more threads.
Sent from my LT26i using xda app-developers app

You could try this
http://forum.xda-developers.com/showthread.php?p=41969456
Sent from my 4.2.2 Xperia S via Tapatalk

Thank you I have re root my phone
Sent from my LT26i using xda premium