Develop Bugs

[Q] Installed cm9...not able to restore gingerbread..plz help

I am on Xperia Arc with unlocked bootloader, with CM 9.0 & CWM Recovery 5.
Before flashing to CM 9.0, I made full backup of my stock ROM through CWM Recovery.
Now I want to go back to my original firmware (i.e. 4.0.2.A.0.42).
When I try to restore backup from within CWM recovery, my phones is stuck at boot after free-xperia logo. Only black screen with nothing on it.
Someone please help me, how can I restore my backup of stock ROM.
i want my phone as it originally came....
plz help....
thanks in advance..

hero199122 said:
I am on Xperia Arc with unlocked bootloader, with CM 9.0 & CWM Recovery 5.
Before flashing to CM 9.0, I made full backup of my stock ROM through CWM Recovery.
Now I want to go back to my original firmware (i.e. 4.0.2.A.0.42).
When I try to restore backup from within CWM recovery, my phones is stuck at boot after free-xperia logo. Only black screen with nothing on it.
Someone please help me, how can I restore my backup of stock ROM.
i want my phone as it originally came....
plz help....
thanks in advance..
Click to expand...
Click to collapse
You must flash the compatible kernel for that firmware
Doomlord's kernel for stock rom for example.
As you mentioned, you already restored the GB stock rom; you only need the proper kernel now for it to boot properly.
FXP kernel works for CM only.

hero199122 said:
I am on Xperia Arc with unlocked bootloader, with CM 9.0 & CWM Recovery 5.
Before flashing to CM 9.0, I made full backup of my stock ROM through CWM Recovery.
Now I want to go back to my original firmware (i.e. 4.0.2.A.0.42).
When I try to restore backup from within CWM recovery, my phones is stuck at boot after free-xperia logo. Only black screen with nothing on it.
Someone please help me, how can I restore my backup of stock ROM.
i want my phone as it originally came....
plz help....
thanks in advance..
Click to expand...
Click to collapse
You must first flash .42 firmware and then install CWM or doomkernel(it comes with pre-installed CWM) and then perform the restore

tryed SEUS?

I also wanted to restore my GB Rom, but I got an md5 mismatch Gosh I hate when that happens

thanksss
thankss a lot guys....
m using my original os now...
wanted to know one more thing...
if i hav to remove doomkernel from my phone..so that is would start as it orginaly came..and have to relock it...what should i do...???

what link did you use for .42 FW?
all the ones i find are dead!

yo-meister said:
what link did you use for .42 FW?
all the ones i find are dead!
Click to expand...
Click to collapse
follow this link...
http://api.viglink.com/api/click?fo....A.0.42)</b>&jsonp=vglnk_jsonp_13261245541301
download boot.img file...
fastboot it...
you will get the doomkernel...

yo-meister said:
what link did you use for .42 FW?
all the ones i find are dead!
Click to expand...
Click to collapse
He had the backup I guess.

hero199122 said:
thankss a lot guys....
m using my original os now...
wanted to know one more thing...
if i hav to remove doomkernel from my phone..so that is would start as it orginaly came..and have to relock it...what should i do...???
Click to expand...
Click to collapse
There is no need to relock the bootloader.Just flash the firmware and you'll get back to original kernel and the doomkernel well be gone

hero199122 said:
thankss a lot guys....
m using my original os now...
wanted to know one more thing...
if i hav to remove doomkernel from my phone..so that is would start as it orginaly came..and have to relock it...what should i do...???
Click to expand...
Click to collapse
You may try to relock your bootloader, use SEUS to flash the phone. There's an option in SEUS that you can select and it will not wipe your data.
OR
Extract the kernel.sin from an ftf and flash it via fastboot, then you can return to your original kernel

[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

BOOTLOOP downgrading from ics to gb with GB cmw restore

hello, before upgrading with pc companion the new ics on my arc s i made a cwm 5 full backup. now when i try to restore i got a bootloop
why this? shouldnt all the data and kernel and system have been restored with cwm backup?
what can i do to go back

raniero1 said:
hello, before upgrading with pc companion the new ics on my arc s i made a cwm 5 full backup. now when i try to restore i got a bootloop
why this? shouldnt all the data and kernel and system have been restored with cwm backup?
what can i do to go back
Click to expand...
Click to collapse
you need to flash the kernel. kernel CANNOT be backed up by CMW on our devices
Pvy.

i tough that it was backed up too. where could i find the stock kernel now as i didnt backed it up? and as i dont have unlocked bootloader is this a problem? i just rooted the phone and installed the cwm for xperia from the play store, the easy way. i would like to not unlock the bootloader.
how could i restore the old kernel now?

raniero1 said:
i tough that it was backed up too. where could i find the stock kernel now as i didnt backed it up? and as i dont have unlocked bootloader is this a problem? i just rooted the phone and installed the cwm for xperia from the play store, the easy way. i would like to not unlock the bootloader.
how could i restore the old kernel now?
Click to expand...
Click to collapse
download the gb stock ftf for your device and then flash it via flashtool.. use the latest version as it supports locked bootloadrs also.. then unckeck everything in the pre flashing dialog box except kernel.. Maybe this worls for you..
But keep SEUS ready if something goes wrong
Hit thanks if I helped..

i would recomend the ASK kernel by doom
has rooting and CWM all sorted for you with the stock kernel if you are looking for a stock kernel.
http://forum.xda-developers.com/showthread.php?t=1421992
Pvy.

now.i.feel said:
download the gb stock ftf for your device and then flash it via flashtool.. use the latest version as it supports locked bootloadrs also.. then unckeck everything in the pre flashing dialog box except kernel.. Maybe this worls for you..
But keep SEUS ready if something goes wrong
Hit thanks if I helped..
Click to expand...
Click to collapse
ur a genius! it worked thank u very much

[Q] how to install cwm recovery on xperia M

I'm still beeing too noob. I've been reading a lot,(thanks to Antrikos48) to but. I am trying to install cmw recovery. I want to backup may entrire phone to my pc. I went through google play and found cwm manager and cwm theter. I read that is necesseray to unlock bootloader before installing cmw. There are some different version of cmw. I'need some help.I'm really lost
I'm sorry about my english
I've read RECOVERY][CWM][2013-10-19][SS] Stock kernel with CWM 6.0.4.4 [Unlocked BL], as well.
Wperima C1905
rooted

May have to hold that thought for a while until the XPERIA M development matures.
I believe(and welcome corrections) that CWM recovery can only be installed on a modified Kernel and not on the stock Kernel.
-----------------------------------------
[update]
See corrected information by @alvinhochun
-----------------------------------------
I did check to see if I could load CWM recovery via flashtool and it was not available/supported.
I suggest Titanium Backup given you have root access.
This means with a LOCKED bootloader you only have to recover Titanium Backup after a SEUS/PC companion restore of the original ROM.
Would mean restoring your mods after the restore such as deleting bloatware from /system/app and etc.

I've published CWM for unlocked bootloader here: http://forum.xda-developers.com/showthread.php?t=2480556
For locked bootloader, there isn't currently one.
Dr Goodvibes said:
I believe(and welcome corrections) that CWM recovery can only be installed on a modified Kernel and not on the stock Kernel.
Click to expand...
Click to collapse
That's not exactly true, stock kernel can run CWM. The thing that needs to be changed is the ramdisk. Since the Xperia M does not have a recovery partition it needs a so-called "two-staged boot" to choose between Android and recovery.
Locked bootloader will check for a signature before booting, and will (or at least I think it will) refuse to boot. That's why flashing a modified boot image requires unlocked bootloader, no matter how you flash it.
Just a tip, before unlocking bootloader, remember to back up the TA partition! http://forum.xda-developers.com/showthread.php?t=2292598

Thanks, now I'm understanding a little bit more.I'm waiting for the script to swap the memory. In the meanwhile I'll backup the phone following the TAguide

my phone is stuck on sony logo please help

aniket09 said:
my phone is stuck on sony logo please help
Click to expand...
Click to collapse
Reflash stock .ftf file via flashtool.
*blink*

Guide for Safe installation of any custom rom on your stock rom mobile

Installation Steps (Warranty can be restored whenever you wish)
-------------------------
Before starting your rom flashing journey it is always better to have Flashtool (latest -by androxyde) installed in your PC and your stock rom handy ; incase of any mishappenings.
Type *#*#7378423#*#* in your phone and see if your bootloader status is unlockable under service-->Configuration. Procede with below steps, only if your device is unlockable.
It is important that you follow the steps in order
1) First step for installing a custom rom over a mobile with stock rom is to backup the existing state of bootloader .Usually warranty will get void if any modification is done to bootloader. The below tool ensures that it takes the backup of existing state of bootloader when device is under warranty.
Goto
Backup TA for Sony Xperia (This tool helps you to have a )
http://forum.xda-developers.com/showthread.php?t=2292598.
Download the tool.This tool will backup your DRM Securtiy keys . Successful backup can only be taken after the existing stock rom is rooted (Use towelroot application if your device is not already rooted) .Root it first then follow the process given in above link .
Once this is over , u will have a backup of the existing state of bootloader/TA partition (If you later wish to move back to stock rom from custom rom use the same tool to restore the backup you have just created.This means you will get your Warranty back);
2) Goto this website , follow the steps and get your unlock code via e mail.
Use fastboot mode to unlock your bootloader (Make sure that you have already backuped your existing DRM keys-Step 1).Follow it fully to unlock your bootloader
http://unlockbootloader.sonymobile.com/unlock/step1
3)Download any custom rom zips with recovery, for your mobile from xda developers forum and have fun.Extract boot.img using winrar or winzip .
Flash boot.img via fastboot mode
fastboot flash boot boot.img
fastboot reboot
4)As the device reboots, when you see your LED glow press volume up or down. It will take you to CWM Recovery or TWRP recovery based on the rom that you have downloaded.
5)Just install the custom rom(*.zip ) from within the recovery.

What if that i already have the custom recovery?
So, just wipe data, dalvik, and cache, then flash the zip?
That's it?

AndreIrawan97 said:
What if that i already have the custom recovery?
So, just wipe data, dalvik, and cache, then flash the zip?
That's it?
Click to expand...
Click to collapse
yes.

AndreIrawan97 said:
What if that i already have the custom recovery?
So, just wipe data, dalvik, and cache, then flash the zip?
That's it?
Click to expand...
Click to collapse
Absolutely right. But before installing an custom rom in the first place i hope you have already backed up your DRM keys for warranty purpose(as mentioned in the guide) since if you unlock your bootloader without backing up your DRM keys, DRM keys might be lost forever .

gokukaushik said:
Absolutely right. But before installing an custom rom in the first place i hope you have already backed up your DRM keys for warranty purpose(as mentioned in the guide) since if you unlock your bootloader without backing up your DRM keys, DRM keys might be lost forever .
Click to expand...
Click to collapse
Can i backup my app on stock rom then restore it to a custom rom?

AndreIrawan97 said:
Can i backup my app on stock rom then restore it to a custom rom?
Click to expand...
Click to collapse
Sure. Easiest way to do it is by using an app called, 'Titanium Backup Pro'.But you have to root your stock rom first for this application to run(Use towelroot if you are yet to root).Except for sony proprietary apps like walkman,Album,etc (will run only on stock rom as they use sony developed system libraries/API'S) other apps will get restored/run fine on a custom rom.

gokukaushik said:
Sure. Easiest way to do it is by using an app called, 'Titanium Backup Pro'.But you have to root your stock rom first for this application to run(Use towelroot if you are yet to root).Except for sony proprietary apps like walkman,Album,etc (will run only on stock rom as they use sony developed system libraries/API'S) other apps will get restored/run fine on a custom rom.
Click to expand...
Click to collapse
And one think left.... How to know if my bootloader is unlocked or not?

AndreIrawan97 said:
And one think left.... How to know if my bootloader is unlocked or not?
Click to expand...
Click to collapse
its in the OP....on the phones dialpad, type: *#*#7378423#*#*
then look in > service > configuration
it should show the status as "bootloader locked", "bootloader unlocked", "bootloader unlockable" or "not unlockable" (sorry wording may not be exact, but you'll get the idea)

foomanjackel said:
its in the OP....on the phones dialpad, type: *#*#7378423#*#*
then look in > service > configuration
it should show the status as "bootloader locked", "bootloader unlocked", "bootloader unlockable" or "not unlockable" (sorry wording may not be exact, but you'll get the idea)
Click to expand...
Click to collapse
no.. i mean, how to know if my bootloader is already unlocked or not?
Anyway, what happened if i flash it without unlocking it first?

Sorry, did you type that in the phone and check the status? That's where it will tell you if its already unlocked or if its even unlockable at all.
Do not try to install a custom ROM on your phone if it is not unlocked! Your phone will not boot.

AndreIrawan97 said:
no.. i mean, how to know if my bootloader is already unlocked or not?
Anyway, what happened if i flash it without unlocking it first?
Click to expand...
Click to collapse
Thanks to @ foomanjackel for answering your questions.Regarding your 2nd question, 'Experience is the mother of invention'.Why don't you try and see what happens...just kidding.Couldn't resist it. Practically speaking of you install a custom rom with an custom kernel on a locked bootloader you will hard brick it.It will not boot and chances are that you might not be able to goto flashmode or fastbootmode anymoreto repair it.Reason this happens is that both your recovery and bootloader resides in the same partition in your mobile.If you try to install custom kernel on a locked bootloader in every probability, it not only corrupts your existing stocks kernel but also might corrupt your recovery leaving u helpless.
Theoretically, You should be able to install any custom-stock based rom on a locked bootloader (which runs exactly on ur stock kernel).In other words a custom rom which doesn't come up with a custom kernel but based on your existing stock kernel should be able to run on a locked bootloader.But my advice is you do not risk it.

foomanjackel said:
Sorry, did you type that in the phone and check the status? That's where it will tell you if its already unlocked or if its even unlockable at all.
Do not try to install a custom ROM on your phone if it is not unlocked! Your phone will not boot.
Click to expand...
Click to collapse
Yes it said boot loader unlockable : yes
And couple months ago, i want to unlock my bootloader, but i dont know what went wrong, but my xperia got boot loop...
So is that bcs i already unlocked it? Or... ?

AndreIrawan97 said:
Yes it said boot loader unlockable : yes
And couple months ago, i want to unlock my bootloader, but i dont know what went wrong, but my xperia got boot loop...
So is that bcs i already unlocked it? Or... ?
Click to expand...
Click to collapse
If you get this message "Bootloader unlockable: yes" then your bootloader is still locked.

gokukaushik said:
If you get this message "Bootloader unlockable: yes" then your bootloader is still locked.
Click to expand...
Click to collapse
Is unlocking bootloader can make me lose my root?

AndreIrawan97 said:
Is unlocking bootloader can make me lose my root?
Click to expand...
Click to collapse
I suppose it won't.I don't see the reason why u want to unlock the bootloader unless you want to install a new custom rom.