downgrade from ics - Xperia Arc Q&A, Help & Troubleshooting

I have a arc running ics form the arc s and i was wondering if i could downgrade with no ill effects. as im selling the phone.

UnderZone7 said:
I have a arc running ics form the arc s and i was wondering if i could downgrade with no ill effects. as im selling the phone.
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you can flash 2.3.4 firmwares {ftf} again via flashtool to downgrade..!!

Sorry for the noob question but can i use flashtool to downgrade back to GB even if my bootloader is lock?

Yes, but you can downgrade to 2.3.4 only. You will risk damaging the fuel gauge(0% battery problem) if you downgrade to an earlier version.

Yes, using flashtool flashes the stock kernel/firmware. If your bootloader's unlocked you could use pc companion to repair the phone if the official ICS isn't available in your area yet.

alvin.durant said:
Sorry for the noob question but can i use flashtool to downgrade back to GB even if my bootloader is lock?
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Here's a tutorial:
http://androidforums.com/x10-all-things-root/272949-flashtool-guide-how-n00bies.html#post2243502
Yes, cou can downgrade to 2.3.4
EDIT:
Other 2 guys were quicker
Sent from my iPad 2 using Tapatalk

Where can i get 2.3.4 generic for all regions?

Actually since you upgraded to ICS doing the repair via PC Companion will detect that you have the ICS version on your smartphone and will download, wipe and install the ICS even it if the ICS update is not available in your area.
I know because I did a repair job because I want to wipe it clean with a fresh install of the ICS and I am happy with it. So it will not repair and install GB 2.3.4.
As commented flashtool and download the GB 2.3.4 on here to downgrade.

where can i download generic ics ftf file?

Related

[Q] ICS beta

after i flash the ICS beta http://developer.sonymobile.com/wp/...or-unlocked-xperia-play-smartphones-download/
i need to install again the kernel if i want ICS++ rom ?
You'll need to flash an ICS kernel e.g DoomLords Advanced Stock
Sent from my R800i using xda premium
I have another question:
i'm on 2.3.4 rooted with locked bootloader and i'd like to test ics beta; if i unlock bootloader then flash ics beta can i come back to gb and re-lock bootloader to be able to receive official ics when it comes out? If yes, how to go back to GB? Sorry but i'm new to SE.
code72 said:
I have another question:
i'm on 2.3.4 rooted with locked bootloader and i'd like to test ics beta; if i unlock bootloader then flash ics beta can i come back to gb and re-lock bootloader to be able to receive official ics when it comes out? If yes, how to go back to GB? Sorry but i'm new to SE.
Click to expand...
Click to collapse
first u need to flash stock fw via flashtool, then relock bootloader .ftf file.. and that its

[Q] some question about rooting ICS 4.04 Global .431 (LT15i) (Locked BL)

i search over and over and i check the site daily to find any way too root officially global world.431 without re flash (ready to root firmware)
i need root to slove small internal memory problem
any way id like to ask what is the disadvantages of flashing (ready to root firmware)?
and if i flash (ready to root firmware), can i update my mobile normally via witless?
there are no disadvantages, it's just the normal 4.0.4 FTF with the 4.0.3 kernel.
just don't flash the FR because tether doesn't work from some reason.
and for sure there is no differnt with 4.04 kernel and 4.03 kernel?
and if u have the rom, how is the battery with you?
islam_ashraf said:
and for sure there is no differnt with 4.04 kernel and 4.03 kernel?
and if u have the rom, how is the battery with you?
Click to expand...
Click to collapse
read the tutorial carefully, after you done rooting you need to flash the 4.0.4 kernel
the battery is almost the same as GB for me.
rite, i didnt notice that
thanks alot

[Q] CM9 RC1 on ICS 4.0.3?

Hi, I'm very new to this forum, and I'm not sure if this is even the correct place to post it (please tell me if it isn't) and I'm also new to all these rooting/flashing stuff. I have an unlocked bootloader and a rooted phone and I want to install CM9, but apparently the latest release has a baseband (72) for ICS 4.0.4. So is FXP127 still compatible with 4.0.3? If it is, which baseband do I have to use?
And if it is not, how do I get my phone updated to 4.0.4? I've heard stories about people bricking their bootloader unlocked phones through PC Companion/update centre, and I don't want to be the next. Do I have to flash the fw manually then? And can I still use the stock kernel?
Thanks in advance!
You can directly go with FXP127. You're replacing the entire ROM. It doesn't matter what you were using before.
Just follow the instructions given to the T and you won't face any issues.
Don't use PC Companion or SEUS when you have an unlocked bootloader. Use Flashtool.
If you're going with CyanogenMod, then use the supplied kernel.
Swyped from my SE Xperia arc (LT15i) using Tapatalk 2

Over air update fails, back to official rom?

My update to 4.1.b.0.431 over air fail on my Sony Xperia Arc S. Pc Companignon tells me I tampered with software. I did some rooting some time ago but actually thought I was on the official ROM again.
Is it possible to flash back to an official ROM and receive future updates over the air again? Or did ruined that path the first time i was flashing ?
Right now im on
android version 4.0.3
build number 4.1.A.0.562
Thanks
Use the flashtool to update. http://forum.xda-developers.com/showthread.php?t=1653188
Do you have unlocked bootloader? If yes, relock it.
Sent from my Xperia Arc S using xda premium

[Q] Brick phone after update?

Hello ! :fingers-crossed:
Jelly Bean was released. So, If I update phone (with DooMLorD leaked JB rom) using PCC I dont brick it? Or I have to wait FTF and flash it?
Share your experience.
keturkaimis said:
Hello ! :fingers-crossed:
Jelly Bean was released. So, If I update phone (with DooMLorD leaked JB rom) using PCC I dont brick it? Or I have to wait FTF and flash it?
Share your experience.
Click to expand...
Click to collapse
you have to wait ftf as you already unlock your bootloader,you won't get any update in Sony PCC...
keturkaimis said:
Hello ! :fingers-crossed:
Jelly Bean was released. So, If I update phone (with DooMLorD leaked JB rom) using PCC I dont brick it? Or I have to wait FTF and flash it?
Share your experience.
Click to expand...
Click to collapse
If you flashed DooMLorD's rom, and want to update to the official version, then you can just flash the ftf, when it is released by sony.
keturkaimis said:
Hello ! :fingers-crossed:
Jelly Bean was released. So, If I update phone (with DooMLorD leaked JB rom) using PCC I dont brick it? Or I have to wait FTF and flash it?
Share your experience.
Click to expand...
Click to collapse
You wont brick the Update Service will say : " Modified system file " and wont update your phone, you can either flash FTF or relock Bootloader install with Update Service and then unlock it again for further modifications.... Still better love story than twilight
Or if you are too excited and want to try updating using PC companion then you can first flash stock ICS with flash tool and then flash the relocking ftf posted by doomlord. Then you can safely update your phone using PC companion
Sent from my LT26i using xda app-developers app

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