[Q] Flashing back to stock via Flashtool - Xperia Arc Q&A, Help & Troubleshooting

Hi everyone,
Sorry, quick confirmation question before I do anything. I have unlocked BL - going from SEMC 4.0.2.A.0.42 rom I flashed cm7.2 and doomkernel. I then moved on and flashed BlendMiui and doomkernel. Now I am thinking of trying an alpha ICS rom. It says I need to be on 4.0.2.A.0.42 rom.
Because that is where I originally came from, can I just go ahead and start flashing? Or do I need to reflash the stock rom before I start?
On a side note, if I just go and flash the stock rom through Flashtool, will my phone be back to pure stock?
Oh, and do I really need the latest Flashtool?
Cheers!

Better flash it to stock, just to be sure before flashing ICS.
And yes, flashing a stock fw will make the device pure stock
Sent from my iPad 2 using Tapatalk

Related

[Q] Going back to GB?

Hi all,
I'm currently on KA12 which is an ICS ROM, and running Darkforest ICS Kernel.
I would like to switch back to T.E.A.M Stock ROM, which is based on Gingerbread, and was wondering what steps would I need to do to go back?
Thanks in advance!
ShahinTehShiz said:
Hi all,
I'm currently on KA12 which is an ICS ROM, and running Darkforest ICS Kernel.
I would like to switch back to T.E.A.M Stock ROM, which is based on Gingerbread, and was wondering what steps would I need to do to go back?
Thanks in advance!
Click to expand...
Click to collapse
The best thing to do is to return to stock using the appropriate ftf file first. Then install the GB ROM of your choice.
Sent from my R800x using XDA
Would it be okay to flash the 2.3.4 .62 SE Stock firmware found here?:
http://xperiagamer.com/Stock-Roms/234-stock-firmware-for-root.html
That'll work.
Then flash your rom.
ya you should also take advantage of nand droid backups. along with that one ftf u use you'll able to flash back and forth between roms (2.3.4/4.0.3) without loosing anything from previous roms you may have flashed. always do backups through cwm.

[Q] going from (jb) to (ics)

hi everyone i wanted to know taht i am on aokp(jb) rom and i wanna go to a stock based(ics) without using flashtool.
any help will be appreciated.
The best way is the flashtool to return to stock, otherwise a stock based kernel and ROM in the same way you flashed AOKP.
Sent from Myushi
but most of the stock based roms said that i need the 587.baseband to install the rom. please let me know coz am in no mood to use flashtool
.587 is not a baseband, it's the stock 4.0.4 ICS firmware version (fully 4.1.B.0.587 iirc). Just download and flash via flashtool
Sent from my LT18i using xda premium
ok i just wanted to make sure if their is any other way other then flashtool thanks.
Just flash the kernel, wipe everything, and install the ICS ROM you want. I came back to ICS from CM10 without flashing stock ftf, and no issues at all.
soumya_digi said:
Just flash the kernel, wipe everything, and install the ICS ROM you want. I came back to ICS from CM10 without flashing stock ftf, and no issues at all.
Click to expand...
Click to collapse
thankyou so much all that getting me worried was all the devs saying i need 587.firmware thanks mate.

[Q] Installing custom roms on Arc S with locked boot loader

I'd just like to say hi to everyone, my name is Mick.
I have an Arc S, originally running GB, but currently running ICS, build 4.1.A.0.562 which I updated to via SEUS a while ago.
I've used DoomLord's one click method to root the phone, have CWM installed, and I've been happy with it since, but I've now decided to see about installing a custom rom.
I've done a lot of reading on here about locked and unlocked boot loaders, and mine's locked so a bit restrictive in what I can do I gather.
What I'd like to know is, a lot of the roms for locked bl's, say based on, or must have, the .587 build, but mine is the earlier .562.
What is the best way to proceed?
Can I flash the .587 kernel with flashtool as I've read that the stock, signed kernels can be flashed on locked bls. Is this right, and does flashing a stock .587 kernel affect rooting?
Any help, or links to whatever I haven't found yet, would be much appreciated.
Cheers,
Mick.
MickieH said:
I'd just like to say hi to everyone, my name is Mick.
I have an Arc S, originally running GB, but currently running ICS, build 4.1.A.0.562 which I updated to via SEUS a while ago.
I've used DoomLord's one click method to root the phone, have CWM installed, and I've been happy with it since, but I've now decided to see about installing a custom rom.
I've done a lot of reading on here about locked and unlocked boot loaders, and mine's locked so a bit restrictive in what I can do I gather.
What I'd like to know is, a lot of the roms for locked bl's, say based on, or must have, the .587 build, but mine is the earlier .562.
What is the best way to proceed?
Can I flash the .587 kernel with flashtool as I've read that the stock, signed kernels can be flashed on locked bls. Is this right, and does flashing a stock .587 kernel affect rooting?
Any help, or links to whatever I haven't found yet, would be much appreciated.
Cheers,
Mick.
Click to expand...
Click to collapse
First, .562 update is crap. Sony released a crappy 4.0.3 update, better update if you can.
Then installing stock firmware before installing a custom ROM is not necessary.
Yes, there is difference in .562 and .587 kernels. Apparently, .562 kernels have a security hole in it, which can be used for rooting, however .587 kernels don't have it anymore and you will have to install older kernel to root and then install newer kernel back.
Yes u can flash .587 kernel using flashtool & this will not effect on root... But I will suggest u to update ur phones firmware to .587 (.562 is full of bugs), root it & install cwm then flash stock based custom roms which supports locked bootloader..
Sent from my MT11i using Tapatalk 2
Samak46 said:
Yes u can flash .587 kernel using flashtool & this will not effect on root... But I will suggest u to update ur phones firmware to .587 (.562 is full of bugs), root it & install cwm then flash stock based custom roms which supports locked bootloader..
Sent from my MT11i using Tapatalk 2
Click to expand...
Click to collapse
It does. 4.1.A.0.562 kernel has a security hole in it, which is used to root via DooMLoRD's method. .587 kernel has that hole patched and that root method does not work.
Thanks for the replies.
Ok, so this means that I can use flashtool to flash the .587 kernel, and then whichever rom afterwards.
I have tried flashing roms with the .562 kernel, and they do work, but I get odd glitches.
The Walkman app in Zelly Cream 2.0 for instance says it has unexpectedly stopped whenever I click on My Music, and the Ultimte HD rom is really good, but the native Movie player won't work and does the same whenever I click on a video.
Each app works ok on one rom, but not on the other.
At the moment I've got the Zelly Cream rom installed and just disabled the Walkman, so had to download another player.
So far I've not had any issues with boot loops or anything, but I have been wiping properly before installing.
I have got a stock .587 kernel I found on here, so I'll try flashing that and see if it's any better.
It's a shame the boot loader is locked, but I've also read that removing the sim lock can fix this.
Thanks again for the info. :good:
587 kernel
Sorry, has anyone got a link for a generic .587 kernel as when I search, the ones that come up have been modified in some way, and my boot loader is locked.
Thanks.
Got it
Ah, it's ok, I think I've found it.
The first one I downloaded was reproting LT15 in Flashtool, so after a bit more searching found it here
http://forum.xda-developers.com/showthread.php?t=1838830
Should be ok.
Just download the whole ROM, but choose only kernel to install.
Sent from LT18i with custom firmware by myself.
Your phone's not covered under warranty anymore, so why don't you try unlocking the bootloader? Would barely take a few minutes.
Hi, Flash new .587 firmwar..... flash .562 kernel only.....root phone.....flash original .587 kernel only.....this video helped me a lot.
http://www.youtube.com/watch?v=Rjv71b9QcZE
Feel free to get in touch...good luck !!

[Q] Revert to stock ROM

Hi to all senior XDA.
I'm using rooted r800i GB 2.3.4, stock ROM with locked bootloader.
If I flash a custom ROM on my phone, may I revert back to my stock ROM?
I've already made a CWM backup.
Yes you can revert back by restoring your backup or flashing the stock ftf with flashtool. Make sure you only flash gb roms because other versions need an unlocked bootloader or youll have lots of problems
Sent from my Xperia Play (r800x)
Thanks for the advice... :good: I will bear it in my mind...

Trouble going back to JB from kitkat

Hi,
I'm having trouble getting back from a KitKat Rom to an JB or ICS ROM.
I'm getting stuck with the firmware. It's flashing OK (I've tried several different ones), but when I boot up and try to get into CWM it just sits there on the firmware logo (e.g. the LUPUS logo, or the Rush logo).
Is there something fundamentally stopping me going back to an ICS or JB firmware, after I've previously had KitKat running?
HELP
Oh, this is the Kitkat ROM I originally installed, and it's included kernel:
http://forum.xda-developers.com/showthread.php?t=2570072
If I flash that kernel again, I can get into Kitkat successfully, no problem at all.
As above, if I flash any other kernel, I just can't get into CWM.
gsf600y said:
Hi,
I'm having trouble getting back from a KitKat Rom to an JB or ICS ROM.
I'm getting stuck with the firmware. It's flashing OK (I've tried several different ones), but when I boot up and try to get into CWM it just sits there on the firmware logo (e.g. the LUPUS logo, or the Rush logo).
Is there something fundamentally stopping me going back to an ICS or JB firmware, after I've previously had KitKat running?
HELP
Click to expand...
Click to collapse
You can flash stock ICS firmware using Flashtool, then flash a JB custom kernel with a recovery. From there, use the recovery to flash a JB ROM.
僕のLT18iから送られてきた
popthosegaskets said:
You can flash stock ICS firmware using Flashtool, then flash a JB custom kernel with a recovery. From there, use the recovery to flash a JB ROM.
Click to expand...
Click to collapse
Thanks for your reply.
What is the need for flashing an ICS kernel first?
I'll give it a go, but flashing a custom ICS kernel with a recovery I've been unable to get into CWM.
I'm probably doing something really stupid.
gsf600y said:
Thanks for your reply.
What is the need for flashing an ICS kernel first?
I'll give it a go, but flashing a custom ICS kernel with a recovery I've been unable to get into CWM.
I'm probably doing something really stupid.
Click to expand...
Click to collapse
Flashing ICS is recommended first since this will restore you phone's memory partitions. KK uses different memory partitions to make it run properly. This will also wipe your phone's data and allows you to do a clean install that should eliminate most errors that you encounter during ROM installation.
Ok, thanks so much for the advice
I'll give it a go and let you know how I get on!
Ok, I'm back on Gingerbread stock firmware
Android v2.3.4, Build 4.0.2.A.0.62.
I can't find an ICS based FTF file - everything is either 404 or on hotfiles, which is dead.
I've unlocked the bootloader (which I thought I'd already done, but maybe the flash of the firmware undoes that?)
Not sure where to go from here.
gsf600y said:
Ok, I'm back on Gingerbread stock firmware
Android v2.3.4, Build 4.0.2.A.0.62.
I can't find an ICS based FTF file - everything is either 404 or on hotfiles, which is dead.
I've unlocked the bootloader (which I thought I'd already done, but maybe the flash of the firmware undoes that?)
Not sure where to go from here.
Click to expand...
Click to collapse
Check my signature for stock firmwares, there are working links for Arc and Arc S.
Someguyfromhell said:
Check my signature for stock firmwares, there are working links for Arc and Arc S.
Click to expand...
Click to collapse
BOOKMARKING THAT!!
Very useful thanks a lot
Currently firing up FreeXperia CM9....fingers crossed.....

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