Develop Bugs

[Q] I am new. I need help

I am new to this development thing. I need to understand a few things:
1: Unlock bootloader
2: Installing Custom Rom
3: Flashing stuff
1: I always search the web but i cant find an answer. Will unlocking my Xperia Arc S void my warrenty? If so is there a way to restore warranty by "Locking" my bootloader again?
2: I always wanted to install custom roms. I thought it would be easy like how i install roms on my Xperia X10 Mini Pro. Turns out its complicated. Flash here, flash there. I thought i just need to use CWM5 to install the .zip file. The Rom i want to install is: http://forum.xda-developers.com/showthread.php?t=1393738 (For My Arc S)
3: Flashing kernels. I see that in order to install the above ROM i need to flash DoomLord Kernels? But how? Im confused. Must i need to unlock my bootloader. I already have CWM5 on my Arc S.
Please reply to my question. I am new so if my thread has alreay been posted by someone i am truely sorry.
Thanks,
LeParkour012

Good morning....
1. Every answer your looking for is in the forum on XDA all of the answers
2. It is EASY you just need to read a bit more. CMW works to some extent on Xperia Arc...
3. You definitely need to have your BOOTLOADER unlocked to flash the kernel and custom rom
4. Any modification you do to the phone can void your warranty... it's AT YOUR OWN RISK.
Cheers.

???
Thanks. I finally understand it. May i ask? How is it to flash the rom i linked? Flash the kernels? Do i need the ADB thing?

I wouldn't especially flash that ROM it's in it's REALLY EARLY times (ALPHA). I'd consider just using stock for the moment until the ROM reaches it's beta phase. But that just my own opinion on the subject.
I wouldn't what is required for you to FLASH that specific ROM. My own bootloader can't be unlocked until I do a TEST POINT on it to get it unlocked. I'm actually quite happy with the Stock 2.3.4 .62 ROOTED firmware with no bloatware on it. Very fast and I can say I have a constant free 125mb of RAM available.
Most of my applications are installed to the SDcard.
Cheers.

Oh okay! Thanks for your help. I was actually scared of flashing the rom but now since you told me about the ALPHA thing i won't be flashing it. Thanks again!

How to Flash a new Kernel (DoomKernel)
Hello,
sorry for my possibly stupid question.
I´ve rootet my ARC S and want to install an new/other Kernel.
My favorite is the DooMKernel. Comes there a CWM-Version with the Kernel? And if yes, how to reach the Recovery-Menu. Has the DooM-Kernel switches for Wlan, Bluetooth, GPS, Date,.. in the Notification Bar?
I´m sorry i don´t find any step by step tutorial to install an other Kernel.
I think i have to put the Mobile in the Fastboot Mode. An then flash the Kernel via PC connection. But which File i had to choose?
In the http://forum.xda-developers.com/showthread.php?t=1172885 thread i found the
ARC-DooMKernel-v18-FIX1-lower_boot.img file. Is this the right one? Should I rename the File? And whats about the modules? Is this the right one? MODULES for DooMKernel (v15 onwards), Rename?
Sorry for my Noob questions and my poor english.
Best regards
Ossi

Good morning,
Check in the Development forum for what your looking for.

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 install CMW to flash custom kernels after unlocking my BT

i have new arc s
LT18i
4.0.2.A.0.62
GB 2.3.4
I will unlock bootloader with official sony bootloader unlock web site after that the device will be blank plz tell me where to start ???
after searching in xda i figure out that i must flash new kernel and i found pretty custom kernels and rom SO i must install CWM to flash the kernel and the rom
how i install CWM if my device is blank

barakaz said:
i have new arc s
LT18i
4.0.2.A.0.62
GB 2.3.4
I will unlock bootloader with official sony bootloader unlock web site after that the device will be blank plz tell me where to start ???
after searching in xda i figure out that i must flash new kernel and i found pretty custom kernels and rom SO i must install CWM to flash the kernel and the rom
how i install CWM if my device is blank
Click to expand...
Click to collapse
what device blank means what..??

CWM is for flashing ROMs. You don't install it, once you've unlocked your bootloader and downloaded your sdk's etc, set up fastboot on your PC to boot custom kernels which contain cwm.
Your phone won't be blank, just user data(not sdcard)will be wiped. Follow the instructions on the SE site, or here.

sinkster said:
CWM is for flashing ROMs. You don't install it, once you've unlocked your bootloader and downloaded your sdk's etc, set up fastboot on your PC to boot custom kernels which contain cwm.
Your phone won't be blank, just user data(not sdcard)will be wiped. Follow the instructions on the SE site, or here.
Click to expand...
Click to collapse
thank you
you completed the missing part

How to install latest Recovery?
Hi guys. I have just one simply question. I just unlock my bootloader at my ARC S with installed latest Android 4.0.3 4.1.A.0.562. My question is:
How can I install CWM Recovery on it?? I'm asking because all of these tips were written for Android in version 2.3 and I don't want to brick my phone during using wrong guide.
If it's not a problem redirect me to proper Guide and tools.
Thanks

Like I mentioned, CWM isn't installed, as such. No matter what version of android you're running, if you've unlocked the bootloader then, using fastboot, you can boot a kernel that contains CWM.

[Q]Root and flash kernel Xperia Arc s

hi guys, i have bought a XPERIA ARC S and i would to root my phone.
I have also checked if is allowed unlock bootloader and it's ok!
So, i have the last rom 4.0.4 stock, is possibile have root with this tool http://forum.xda-developers.com/showthread.php?t=1320350?
so, if i want flash a kernel with root included, i must only unlock bootloader and then flash kernel?
The last question is: the rom/kernel are the same for ARC and ARC s?

Hi mate,
The rooting tool that you have linked to needs you to have CWM working before you root. So to use that method you need to unlock your bootloader and then flash a custom kernel. Then enter recovery and flash the latest image.
If you don't want to flash a different kernel, look at this thread: http://forum.xda-developers.com/showthread.php?t=1868455. (Might cover your next question as well)
All the roms and kernels are interchangeable for the arc and the arc s, since the only difference is the clock speed. (On some rom's you might need to change your build.prop from LT15i to LT18i, but that's all. If it does have the option though, always pick the LT18i)
Hope I was able to help

Jon565G said:
Hi mate,
The rooting tool that you have linked to needs you to have CWM working before you root. So to use that method you need to unlock your bootloader and then flash a custom kernel. Then enter recovery and flash the latest image.
If you don't want to flash a different kernel, look at this thread: http://forum.xda-developers.com/showthread.php?t=1868455. (Might cover your next question as well)
All the roms and kernels are interchangeable for the arc and the arc s, since the only difference is the clock speed. (On some rom's you might need to change your build.prop from LT15i to LT18i, but that's all. If it does have the option though, always pick the LT18i)
Hope I was able to help
Click to expand...
Click to collapse
ok, so if i have understand right:
1)i will unlock bootloader
2)will flash custom kernel with root in fastboot mode
it's ok?

danispal said:
ok, so if i have understand right:
1)i will unlock bootloader
2)will flash custom kernel with root in fastboot mode
it's ok?
Click to expand...
Click to collapse
1. Yep if you want. (It's not needed to flash most ROM's and will void your warranty)
2. Yeah, flash custom kernel via fastboot.
You will have to have the superuser.zip on the sd card. The enter CWM and flash it. This will give you root.

That helped me as well before. Now itd time to say thanks
Sent from my LT18i using xda app-developers app

need guidance..pls help

Hii guys sorry for being such a noob .. but I am very confused here.. I am not able to install a custom Rom in my beloved xperia arc my phone just stuck on sony logo.. I tell u what i did.. first of all i rooted my phone by flashing rootable kernel then rooted my phone with doomlord
Method then I installed CWM..but the problem is no matter which custom ROM I install in my phone with CWM phone just stuck on sony logo
Plz tell what i did wrong..
P. S. My phone was on latest ver of ICS

vivekrules said:
Hii guys sorry for being such a noob .. but I am very confused here.. I am not able to install a custom Rom in my beloved xperia arc my phone just stuck on sony logo.. I tell u what i did.. first of all i rooted my phone by flashing rootable kernel then rooted my phone with doomlord
Method then I installed CWM..but the problem is no matter which custom ROM I install in my phone with CWM phone just stuck on sony logo
Plz tell what i did wrong..
P. S. My phone was on latest ver of ICS
Click to expand...
Click to collapse
Unlocked bootloader, right?
Well... I started flashing with the FXP CM based roms. I suppose that this is exactly what you did, but since you didn't tell the steps you followed, I'm gonna write down how I did the first time:
With an FXP CM based rom (eg: FXP CM 10) , the steps, basically are:
- Extract the boot.img (own kernel of the FXP roms) of the .zip and put the .zip in the sdcard
- Flash the kernel in fastboot mode:
( fastboot -i 0xfce flash boot boot.img
fastboot -i 0xfce flash reboot
unplug the usb and start hiting volume controls to enter in CWM)
- Wipe data and cache
- Install the .zip (rom)
- Reboot and enjoy
Hope it works for you.

Aactually I am not. Able to flash kernel image with fastboot.. I mean with flashtool I am not Able to flash kernel image.. flashtool is showing error that my phone is not rooted.. but it actually is..
And suppose if i want to install ROM( jelly sandwich) can u tell me the procedure from the scratch, I ll really appreciate it.. coz I am trying for 2 days with negative result...

vivekrules said:
Aactually I am not. Able to flash kernel image with fastboot.. I mean with flashtool I am not Able to flash kernel image.. flashtool is showing error that my phone is not rooted.. but it actually is..
And suppose if i want to install ROM( jelly sandwich) can u tell me the procedure from the scratch, I ll really appreciate it.. coz I am trying for 2 days with negative result...
Click to expand...
Click to collapse
I'm noob too, so unfortunately I can't help in the most effective way.
The only apparent difference between our phones (from what I understood from your post) is that I unlocked the bootloader. I read here in XDA that some roms just need this while others not.
"can u tell me the procedure from the scratch, I ll really appreciate it" - You mean unlock the BL?
It's easy, but may void the warranty... Go here: http://unlockbootloader.sonymobile.com/instructions
(Note: In my case I didn't install the sdk, but I just can't find the tutorial that I followed to unlock the BL... Anyway, the tutorial that I've used was in portuguese... Not much help for you I guess
Note2: In the middle of the process, you'll have to inform your IMEI in the sony website... Use just the first 14 digits).

There is enough information in the guides and stickys to help with most things, People just need to read it.
Sent from my CM9'd Arc

XperienceD said:
There is enough information in the guides and stickys to help with most things, People just need to read it.
Sent from my CM9'd Arc
Click to expand...
Click to collapse
+1
When I want to know sth, I search and then I will have more than I wanted.:angel:

1. unlock the boot loader
2. Download a custom kernel for your current version of android ie: GB/ICS i suggest DoomLord.
3.Put the kernel ( .img ) into the same folder as you have fastboot/adb
4. Power the phone into fastboot: Power down your phone. Press and hold the menu button then plug in your usb cable (the light on the side will be blue)
open a CMD window in the same folder as fastboot/adb and type the commant:
fastboot flash boot NAME OF FILE.img
push enter.
Once the install is complete (a couple of second) you will have root and custom recovery.
Make sure your phone version is rootable
There are guides available in the General section, I suggest you read them if this is your first root.
Good Luck.

Thanks guys I appreciate your help.. I ll try