How can I revert back to the stock ROM on my Arc S?
Thanks
Use SEUS or flashtool and use search function .
Here is the prerooted .img 4.0.2.A.0.62 Generic Global ready to flash with fastboot (unocked bootloaders):
Code: fastboot flash system SYSTEMFILE.img
Where SYSTEMFILE is the name of the file you download.
My original device settings said lt18i but this one says lt15.
Is it still safe to flash it?
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
Hey Guys,
i'm a more or well advanced arc "expert", and sometimes i'm "bricking", not really, my phone because of flashing a rom for "only unlocked bl" phones so it gets stuck at the bootscreen, then i always doing this:
1.flash 4.0.3 via FLASHTOOL
2.root and install cwm via RECOVERX
And this is annoying, it's taking so "much" time, i'm very impatient, so i ask you: Could you create a ftf 4.0.3 file which is prerooted?
Hi mate,
It's not possible to make a ftf file pre rooted. Their signed by Sony, and can't be signed again after being decompiled.
Unfortunately, your going to have to carry on your normal way
Ok, thanks for the reply
I got into a bootloop recently due to unlocking my bootloader. I was really worried, so I installed CWM using fastboot on my phone.Then the bootloop also stopped,only the sony logo appears for a small time and then the phone goes black out.I can still boot into recovery.
I came to know that flashing using stock ftf will solve my problem, but now on flashing it gives the error that processing loader.sin completed with errors and then the flashing aborts. Please anybody help me!:crying: I have the latest version of flashtool and have downloaded C1905 15.1.A.1.9 global ftf.
You can try using Emma (a Sony restoration tool) to restore the latest firmware.
Alternatively you can boot to recovery, mount sd card(make sure all pc drivers are installed), download a custom rom like cm/aosp or stock rom (not the ftf but zip), load it to the sd card and then install that via recovery.
Will emma work on unlocked bootloader phones(like mine)? Where can I get stock rom in zip format?
cooldudeachyut said:
Will emma work on unlocked bootloader phones(like mine)? Where can I get stock rom in zip format?
Click to expand...
Click to collapse
There is no zip of stock rom. What he says is download a custom rom like cm11 and flash it then flash the ftf file again.
blaspheme000 said:
There is no zip of stock rom. What he says is download a custom rom like cm11 and flash it then flash the ftf file again.
Click to expand...
Click to collapse
Is it necessary to flash the ftf again after flashing cm11?
Until now, Flashtool not provide XM device (loader.sin). #cmiiw
But you can download the file below and put it in C:\Flashtool\Device
For XM Single: http://d-h.st/eBB
For XM Dual: http://d-h.st/hcw
Then try to flash again.
*Sorry for my bad english
siabangichsan said:
Until now, Flashtool not provide XM device (loader.sin). #cmiiw
But you can download the file below and put it in C:\Flashtool\Device
For XM Single: http://d-h.st/eBB
For XM Dual: http://d-h.st/hcw
Then try to flash again.
*Sorry for my bad english
Click to expand...
Click to collapse
I tried it, still the same error. BTW I have flashed CM11 now and I don't think that there is any need for the stock rom now............
Hi Guys, I'm new to this sort of thing and when trying to root my Sony xperia t2 ultra dual have ended up stuck in clockwork mod recovery loop. I have no backups and not sure what files and from where do I need to install via adb access. Cheers
Easy pizzy
Download Flash tool
Download appropriate ftf
Flash ftf via flash tool
Make sure to uncheck wipe data in flash tool while flashing to have everything as it was
chauhanjayc said:
Easy pizzy
Download Flash tool
Download appropriate ftf
Flash ftf via flash tool
Make sure to uncheck wipe data in flash tool while flashing to have everything as it was
Click to expand...
Click to collapse
Thanks, got flash tool but can not find a ftf that say will work with my phone. Cheers
Tell me abt your phone
What is the model number or upload about phone screen shot will give you a link
Sony Xperia T2 Ultra Dual
Model D5322, code name Tianchi by Sony
Was running Android 4.3.1
Go to this page http://forum.xda-developers.com/showthread.php?p=55367088
Download ftf
Turn off your phone
Open flash tool
Load ftf
Press vol - key
Connect phone
All done