Develop Bugs

[Q] How to Backup stock Kernel + ROM ?

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

[Q] PLEASE! HELP ME! My XPS is really dead after flashing one zip :(

Hi guys i am so nervous because of mi xps doesn´t weak up, its already in bootloop.
I have tried a lot of things, because i have an unlocked bootloader, the pc recognised the phone, and it seems that via fastboot i can flash a recovery like Advanced Stock Kernel, but really the phone still in bootloops and i have not got recovery
I have connected to flashtools and flash .55 ftf, the flashtools told that everything is good, but incomprensively de phone still in bootloops.
Now the phone is charging (all the leds working) but after five minutes, the phone turns on and bootloop again.
The zip that i flash before the bootlops is this: http://www.mediafire.com/?67mcui28bh3f45o of this threat: http://forum.xda-developers.com/show....php?t=1724602 , ICS STATUS BAR V3
can someone help me please?
THANK YOU VERY VERY VERY MUCH

Try flashing stock fw using flashtool again?
Sent from my MT27i using xda premium

you are on .55, the version used for that mod is .45 thats why you get bootloop, all you need to do is to reflash the stock firmware via flashtool.
always been said before: before to do anything else,make a backup.so in case of problems you will still have your backup.

Or you can now use the official flash tool from Sony.
http://forum.xda-developers.com/showthread.php?p=35096528#post35096528
There is no chance of problems using the official generic world firmwares provided by Sony itself

[Q] Can't flash back to ,62

Hello! I'm having a problem with my xperia arc S, I tried to install a ROM (ULTIMATE HD 3.1) but I didn't have the wifi modules, so my phone got stuck on boot, so I figured that I got a bootloop, and went to flash the kernel (562), root again again and flash the new kernel (587) to try and install the ROM again, but the phone didn't root, but I flashed the .587 kernel and can't flash it back to .562. I can't figure what's the problem the flashtool says it's flashed but in setting the "compilation number" just says that it has the new kernel.
So my problem is how can I flash back to .562 and root the phone? I already tried this a few times ([url]http://forum.xda-developers.com/showthread.php?t=2118343[/url]), but it dosen't work. what else can I do? Try with another kernel?
I also tried this, but it didn't work http://forum.xda-developers.com/showthread.php?t=2219711. I don't know if it helps but i have the bootloader locked.
Sorry if repost, google but didn't find anything related. thanks anyway.

Restore your phone using Sony Update Service, since you have locked bootloader.
僕のLT18iから送られてきた

popthosegaskets said:
Restore your phone using Sony Update Service, since you have locked bootloader.
僕のLT18iから送られてきた
Click to expand...
Click to collapse
thanks it worked i installed the ROM and everything was ok, but i didn't like the rom so tried to go back to AOSP, but now i have another problem, I can't pass the Sony logo, I tried sony upade but it say's that i have the latest version, i also tried to flash another image (0.562 and 0.587) but it didn't work. what can I do? Is there a simple way to reset the phone (lol), i can't enter CWM. thanks for the help

dramce said:
thanks it worked i installed the ROM and everything was ok, but i didn't like the rom so tried to go back to AOSP, but now i have another problem, I can't pass the Sony logo, I tried sony upade but it say's that i have the latest version, i also tried to flash another image (0.562 and 0.587) but it didn't work. what can I do? Is there a simple way to reset the phone (lol), i can't enter CWM. thanks for the help
Click to expand...
Click to collapse
Repair option in SEUS...
Sent from my Xperia Neo V using xda app-developers app

dramce said:
thanks it worked i installed the ROM and everything was ok, but i didn't like the rom so tried to go back to AOSP, but now i have another problem, I can't pass the Sony logo, I tried sony upade but it say's that i have the latest version, i also tried to flash another image (0.562 and 0.587) but it didn't work. what can I do? Is there a simple way to reset the phone (lol), i can't enter CWM. thanks for the help
Click to expand...
Click to collapse
Also .img files can not be flashed on locked bootloaders
Only .ftf files
Sent from my LT18i

Sahaab said:
Also .img files can not be flashed on locked bootloaders
Only .ftf files
Sent from my LT18i
Click to expand...
Click to collapse
i thought .ftf. and image were the same lol..

lawl ya i cant believe no one noticed u said image above XD

Attitude.SSJ said:
Repair option in SEUS...
Sent from my Xperia Neo V using xda app-developers app
Click to expand...
Click to collapse
the version i have can only update.
Am I being a total idiot? can you please be little more specific please?

dramce said:
the version i have can only update.
Am I being a total idiot? can you please be little more specific please?
Click to expand...
Click to collapse
If you cannot repair with Update Service, try PC Companion. It should offer the repair function.

dramce said:
the version i have can only update.
Am I being a total idiot? can you please be little more specific please?
Click to expand...
Click to collapse
Had a similar problem, caused by wrong kernel (at least i think so). Anyho, there was no "repair" option for me either.
What you should do is:
- Flash back to stock GB firmware (0.62)
- Root (using eRoot, it's a one click procedure.)
- Install CWM using RecoveryX is the simplest way i'd say
- Flash the kernel which Jared proposed (can't remember which one sorry)
- boot into CWM, and follow the instructions to install UltimadeHD rom. I'd suggest Tesla's instructions, they are fail-proof. Remember to click on "unlocked bootloader" if your bootloader is locked.

DUnderline said:
Had a similar problem, caused by wrong kernel (at least i think so). Anyho, there was no "repair" option for me either.
What you should do is:
- Flash back to stock GB firmware (0.62)
- Root (using eRoot, it's a one click procedure.)
- Install CWM using RecoveryX is the simplest way i'd say
- Flash the kernel which Jared proposed (can't remember which one sorry)
- boot into CWM, and follow the instructions to install UltimadeHD rom. I'd suggest Tesla's instructions, they are fail-proof. Remember to click on "unlocked bootloader" if your bootloader is locked.
Click to expand...
Click to collapse
I think I did it thanks, i used a thread here (LINK), i used the generic stock rom and it solved it, thanks for your help. And thanks to everybody else =)

[Q] Flashing Rom

Im currently trying to flash carbon using phil touch recovery. however when I try to select the zip it says that my device is "yuga".I tried using a different rom but its giving the same error. can anyone help me?

psycho-punk said:
What phone do you have?
Sent from my Paranoid ZL
Click to expand...
Click to collapse
Im using xperia ZL.do u know why is it detecting as xperia z??

psycho-punk said:
No. What rom are you on now?
Sent from my Paranoid ZL
Click to expand...
Click to collapse
I'm coming from stoc 4.3.rooted my phone,n then proceeded to unlocking the bootloader.everything seems normal up to this point.flashed the Phil recovery n manages to boot into it.i then proceeded with wiping everything,so now my phoone is withouta rom.i tried installing carbon n diftyunicorn but both gave me the same error.it says that my device is a yuga instead of zL.help?

psycho-punk said:
Where did you get the recovery from?
Sent from my Paranoid ZL
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2288118

psycho-punk said:
Maybe you should flash some other recovery. I recommend taking the boot.img from the zip of the latest CyanogenMod nightly for ZL. After that you can flash the rom of your choice.
Sent from my Paranoid ZL
Click to expand...
Click to collapse
Okay, I think now I may have accidentally hardbricked my phone. I tried relocking and re-unlocking my bootloader. Everything went ok but now I cant start the phone. When I press the power button it only vibrates once and then thats it. Flashtool detects it in both flashmode and fast boot but I cant flash any recovery. Please don't tell me its the end for my phone.

psycho-punk said:
If you can get your phone in fastboot or flashmode, your phone is not hard bricked. There is still hope.
What do you mean you can't flash recovery?
Sent from my Paranoid ZL
Click to expand...
Click to collapse
Something weird happened.I clicked on the BLU button on flashtool and it says my device is still unlocked. After unlocking using flash tool I am now able to flash CWM and TWRP. But both recoveries still would not let me install the roms I mentioned earlier. It still thinks that I'm on another device. Currently downloading CM11 from the CM website. Waiting for my download to finish. But I have a feeling it still wouldn't work. btw, thanks for going through step by step with me. I'm still new to xperia devices. Owned an s plus last time and the whole rom flashing process wasn't really hard like this one.lol
EDIT: UPDATE!!! I have finally found the reason for my problem. I flashed an incorrect version of the boot.img.Because I dump all the stuff related to flashing rom and I dont really remember the location in which I downloaded the boot.img. So what I did was I extracted the whole content of the rom that I downloaded proceed to flash the boot.img using flashtool. from there on, everything works perfectly! thanks for your help. Without ur suggestion, I wouldn't have tought of manually getting the boot.img!

Lollipop downgrade to Kitkat.....HELP!!!!

Please help!!!
I've been tying to downgrade from Lollipop to Kitkat by following various tutorials (like this one, for example), on here and around the net, but to no avail.
Every time I flash the 108 kernel, using Flashtool, whenever I restart my phone I get stuck in some sort of loop that doesn't get past the Sony logo screen. As such I have no other option but to do a Software repair using the Sony Companion.
Is the Sony Companion Software repair causing the problem or can someone point me in the right direction of a (guaranteed) way to go from Lollipop back to Kitkat.
Also, if it's any help, I have no recovery, no root and my bootloader is locked and can't be unlocked.
Thanks

sconly said:
Please help!!!
I've been tying to downgrade from Lollipop to Kitkat by following various tutorials (like this one, for example), on here and around the net, but to no avail.
Every time I flash the 108 kernel, using Flashtool, whenever I restart my phone I get stuck in some sort of loop that doesn't get past the Sony logo screen. As such I have no other option but to do a Software repair using the Sony Companion.
Is the Sony Companion Software repair causing the problem or can someone point me in the right direction of a (guaranteed) way to go from Lollipop back to Kitkat.
Also, if it's any help, I have no recovery, no root and my bootloader is locked and can't be unlocked.
Thanks
Click to expand...
Click to collapse
You won't be able to boot your rom with the wrong kernel. I think that tutorial assumes that you're on KK.
Download the whole KK ftf and flash it, then use doomlord rootkit to root. You can get ftf here - https://forum.xda-developers.com/so...f-xperia-z1-compact-d5503-14-4-0-157-t3118047
Btw, what's your ultimate goal? Are you wanting to root and then go back to LP, or just use KK?

levone1 said:
You won't be able to boot your rom with the wrong kernel. I think that tutorial assumes that you're on KK.
Download the whole KK ftf and flash it, then use doomlord rootkit to root. You can get ftf here - https://.xda-.com/sony-xperia-z1-compact/general/ftf-xperia-z1-compact-d5503-14-4-0-157-t3118047
Btw, what's your ultimate goal? Are you wanting to root and then go back to LP, or just use KK?
Click to expand...
Click to collapse
Just root and stick with KK.
Thanks, I'll give it a try. But won't be able to for a couple of days, so don't hold your breath for me to get back.

sconly said:
Just root and stick with KK.
Thanks, I'll give it a try. But won't be able to for a couple of days, so don't hold your breath for me to get back.
Click to expand...
Click to collapse
If sticking with KK I recommend either .108 stock by munjeni - https://forum.xda-developers.com/so...evelopment/rom-d550314-4-0-108latest-t2862578 or miui7 by greatslon - https://www.androidfilehost.com/?fid=24459283995311002

levone1 said:
If sticking with KK I recommend either .108 stock by munjeni - https://forum.xda-developers.com/so...evelopment/rom-d550314-4-0-108latest-t2862578 or miui7 by greatslon - https://www.androidfilehost.com/?fid=24459283995311002
Click to expand...
Click to collapse
Gapps already included in that Miui ROM? Is it based on stock?
Sent from my D5503 using Tapatalk

templeka said:
Gapps already included in that Miui ROM? Is it based on stock?
Sent from my D5503 using Tapatalk
Click to expand...
Click to collapse
Gapps and Xposed included. Based on KK 4.4

levone1 said:
You won't be able to boot your rom with the wrong kernel. I think that tutorial assumes that you're on KK.
Download the whole KK ftf and flash it, then use doomlord rootkit to root. You can get ftf here - https://forum.xda-developers.com/so...f-xperia-z1-compact-d5503-14-4-0-157-t3118047
Btw, what's your ultimate goal? Are you wanting to root and then go back to LP, or just use KK?
Click to expand...
Click to collapse
Went with this one. Phone back up and running.
Thanks for your help/advice.