Guys can any one plz tel me how do i get back to factory original OS from unlocked bootloader and custom room, i got no idea how to restore back to factory original os, help plz.
Flash the ftf file using flashtool. You need to know which firmware your phone originally had on it.
Sent from my LT18i using Tapatalk 2
need firmware
can you post a link for below firmware
sony ericsson LT18i
SI 1253-9721
well you need to know the orignal os that was installed on the phone by default.
consider this. if your phone came with the dafault firmware 4.0.2.A.0.62 and you install 4.0.2.A.0.42/58 then it will not work on your phone( although it wont get bricked)however, if it came with 4.0.2.A.0.42 then you would be sucess fully able to install gingerbread:- 4.0.2.A.0.42, 4.0.2.A.0.58, 4.0.2.A.0.62
as well as ics :- 4.1.a.0.562, 4.1.b.0.431
you need to download any 1 firmware you like and then flash it using flashtool
the links to firmwares http://forum.xda-developers.com/showthread.php?p=22105604
the tutorial of using flashtool http://www.theandroidsoul.com/tutorial-how-to-flash-a-firmware-using-flashtool-on-xperia-arc/
however remember you need to install all the required drivers for flashing a ftf firmware. although this tutorial is old, the method of flashing is more or less the same. best of luck if u need any more help, i will be glad to help you.
Related
Hi guys.
I'm having a little trouble finding out how to un-root and flash back to stock rom and kernel.
I have searched around for like one hour, and cant seem to find any threads that's answers my question. So therefore i need some help.
I want to re-lock and get back to stock (As i just bought the phone).
Information's about the phone (Kernel/firmware/etc.)
Android Version: 2.3.3
Baseband version: 7X30A-AAABQMAZM-1290_21-22
Kernel: 2.6.32.9-perf [email protected] #1
Version: 3.0.1.A.0.145
If there is more information you need, then just ask
Thanks in advance
For relocking your bootloader check this:
http://forum.xda-developers.com/showthread.php?t=1134335
And for unrooting this:
http://forum.xda-developers.com/showthread.php?p=18879974#post18879974
Or just flash a firmware using PCC or SEUS, then the root is also gone (after you relocked your BL!)
if you want fresh stock,
relock bootloader, flash any global fw,
and reflash using SEUS.
dp94 said:
For relocking your bootloader check this:
http://forum.xda-developers.com/showthread.php?t=1134335
And for unrooting this:
http://forum.xda-developers.com/showthread.php?p=18879974#post18879974
Or just flash a firmware using PCC or SEUS, then the root is also gone (after you relocked your BL!)
Click to expand...
Click to collapse
Where do i find one that fits my phone ? Im not sure which one to pick I read the two links you posted. Any i read it through, and i cant use them, beacuse i havent used "Easy Rooting Toolkit" :S
2hvybg3yb said:
Where do i find one that fits my phone ? Im not sure which one to pick I read the two links you posted. Any i read it through, and i cant use them, beacuse i havent used "Easy Rooting Toolkit" :S
Click to expand...
Click to collapse
Flash the relock *.ftf file with flashtool.
Then flash another firmware using PCC or SEUS.
You'll have a locked BL, stock firmware without root.
I think that's what you want.
dp94 said:
Flash the relock *.ftf file with flashtool.
Then flash another firmware using PCC or SEUS.
You'll have a locked BL, stock firmware without root.
I think that's what you want.
Click to expand...
Click to collapse
Exactly Want to use OTA Updates, because im trying to sell my phone. so i can buy a Nexus
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.
Can the new flashtools root 4.0.2.A.0.62 for arcs with locked bootloaders? Already upgraded once to find out i couldn't root it. Has anyone done this successfully with a locked bootloader as I don;t fancy experimenting again.
yes mate flash the old kernel from the .58 or .42 or .283 FW by excluding baseband & system in flashtool b4 flashing after that root as normal with zergRush..
realfelix said:
yes mate flash the old kernel from the .58 or .42 or .283 FW by excluding baseband & system in flashtool b4 flashing after that root as normal with zergRush..
Click to expand...
Click to collapse
Thats what i did last time i experimented and it didnt work. i installed 62 then flashed the 42 kernel with flashtool. But zerg wouldnt root it. But i flashed the kernel only. in one of the 62 threads there were links to getting it rooted with locked bootloaders. This went to a guide with nothing about locked bootloaders in it, only unlocked.
somewhere here in the forums is a thread about CWM for locked bootloaders, with that you CANNOT flash custom kernels, but old kernels in zip format, hang on i'll get you the zip + the link for the locked BL CWM.
http://forum.xda-developers.com/showthread.php?t=1390771 this is the link for CWM: follow these instructions for the arc : 1.Run install-cwm?.cmd
install-cwm1.cmd for Xperia Arc / Neo / PLAY
2.Enable USB Debugging on device
3.Connect your device using usb data cable
4.Follow on screen instruction
and here's the kernel it's the .283 kernel
it wasn't custom, it was the stock kernel from .42 flashed to .62 and zerg refused to root it. Although apparently this worked on previous versions as i tried flashing the .42 kernel over onto .62 as a tip from one of the other members on here. but I couldn't get it rooted in the end and gave up and went back to .58.
flash that kernel via CWM
so if done with cwm mod it should work then? Whats the difference flashing the kernel with cwm as opposed to flashtool? Would have thought it be the same.
dont know the difference, but this one worked for me
cheers ill give it a go.
no problem feel free to contact me via PM if you still have problems
somedude67 said:
Can the new flashtools root 4.0.2.A.0.62 for arcs with locked bootloaders? Already upgraded once to find out i couldn't root it. Has anyone done this successfully with a locked bootloader as I don;t fancy experimenting again.
Click to expand...
Click to collapse
I have the exact same problem as you. Did you manage to accomplish anything? If yes would it be easy for you to explain to me the exact steps? If not is it possible to give me the address or send me the .58 firmware for arcs (the ftf file). I wasn't able to find it somewhere. Thanks!
upgraded to .62 then tried to install cwm but it wouldn't let me as the phone needs root permission to be able to install it. So how did you deal with this? I also flashed the .283 kernel with flash tools after updating to .62 and zerg again failed to root the device.
chandoliasnikos said:
I have the exact same problem as you. Did you manage to accomplish anything? If yes would it be easy for you to explain to me the exact steps? If not is it possible to give me the address or send me the .58 firmware for arcs (the ftf file). I wasn't able to find it somewhere. Thanks!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1330314
Ok, I'll give it a try.
Before I go back to .58, is there any rumour if Flashtool is going to support rooting on .62 firmware soon?
chandoliasnikos said:
Before I go back to .58, is there any rumour if Flashtool is going to support rooting on .62 firmware soon?
Click to expand...
Click to collapse
Nope... the zergRush exploit has been patched on .62 fw and there wont be another exploit on Gingerbread, since we're going to ICS.
is there anyway to root 62 without unlocking our bootloaders or is it nay to impossible?
So far I wasn't able to find a way, so I think I'll just go back to .58 or .42 and root, waiting for the official ICS.
Sent from my Xperia Arc S
Will the force zergrush or psneuter methods work?
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
Current Phone Status:
Xperia S
Unlocked Bootloader
CWM
FXP CM10
I am very much keen to flash the Official upcoming 4.1.2 for Sony Xperia S devices.
But I'm really confused on how to get it done on my unlocked bootloader, once the new firmware is released.
Please take out time to give suggestions.
Appreciated.
Download ftf
Download and install Flashtool
Install drivers
Install JB ftf
Already Using Flashtool But..
Felimenta97 said:
Download ftf
Download and install Flashtool
Install drivers
Install JB ftf
Click to expand...
Click to collapse
I dont think the NEW JB would be available to download anytime soon.. So just wanted to Connect the Phone to PCC on my Xperia and Flash it.
Already Flashed ICS STOCK via FLASHTOOL on Phone but since its not MY COUNTRY specific
The build gives a few errors.
Just want it like the brand new as if its out of box with the New JB.
Please Reply.
dwarkesh2492 said:
I dont think the NEW JB would be available to download anytime soon.. So just wanted to Connect the Phone to PCC on my Xperia and Flash it.
Already Flashed ICS STOCK via FLASHTOOL on Phone but since its not MY COUNTRY specific
The build gives a few errors.
Just want it like the brand new as if its out of box with the New JB.
Please Reply.
Click to expand...
Click to collapse
You have three options -
1) Wait until someone releases the FTF file of stock JB and flash it with Flashtool
2) Relock your bootloader and try to do a software repair/update with Sony PC Companion/SUS.
3) Use Sony's official Flashtool for unlocked bootloader to restore your device to ICS/update it to official JB.
In my opinion, don't relock your bootloader but just wait until someone gets the update and makes the FTF file. Meanwhile, you can use Sony's official Flashtool and revert back to stock ics.
dwarkesh2492 said:
I dont think the NEW JB would be available to download anytime soon.. So just wanted to Connect the Phone to PCC on my Xperia and Flash it.
Already Flashed ICS STOCK via FLASHTOOL on Phone but since its not MY COUNTRY specific
The build gives a few errors.
Just want it like the brand new as if its out of box with the New JB.
Please Reply.
Click to expand...
Click to collapse
Which new JB? the ftf you download and flash is the same that you get from PCC or SUS, just using a different way.