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[Q] JB update and custom kernel

Hi all,
I'm sorry about my stupid question but I really don't know nothing about that . I had rooted and flashed my NS and installed the matr1x kernel (very good btw), and now I knew that JB will be available to NS. My question is, need I back to stock kernel to receive the update?
Thanks
Sent from my Nexus S using xda app-developers app

Gnng
You have to understand that installing an OTA (official update) on a rooted device regardless of what kernel can cause problems, as it did with my Nexus S before. I suggest you make a NANDroid backup at all times before you install any ROMs, official or Custom. You can also use Titanium backup and others.
There's still a slight while until the new JB 4.1 comes out. It's suggested that you install a Custom JB 4.1 ROM for your Nexus S as though you don't cause any problems. I think it's OK if you do it with the kernel pre-installed. But people always install the Custom ROM THEN they install the Kernel, I think installing a new ROM always overwrites the kernel, if it comes with it.
EDIT:
In short, wait for the JB Custom ROM and you don't have to revert back to stock kernel, when you do the update it will automatically overwrite. Most Custom ROMs come with Stock/ordinary kernels. So then the user can flash whatever kernel they like in your case, matr1x.
Wish you the best of luck, and I am waiting for the Nexus S JB to come out as soon as possible

Ota binary patches the boot image iirc. So it can get all messed up.
Sent from my Samsung Epic 4G using Tapatalk 2

Yeah, what he said!
MДЯCЦSДИT said:
Ota binary patches the boot image iirc. So it can get all messed up.
Click to expand...
Click to collapse

andezzat,
Thank you very much for the help.
andezzat said:
Gnng
You have to understand that installing an OTA (official update) on a rooted device regardless of what kernel can cause problems, as it did with my Nexus S before. I suggest you make a NANDroid backup at all times before you install any ROMs, official or Custom. You can also use Titanium backup and others.
Click to expand...
Click to collapse
I didn't any backup before flashing a new kernel :crying:, so what can I do now if I want my stock kernel back?? What's a NANDroid (I know that is a tool but how can I do it?) ? Is Titanium bkp easily?
There's still a slight while until the new JB 4.1 comes out. It's suggested that you install a Custom JB 4.1 ROM for your Nexus S as though you don't cause any problems. I think it's OK if you do it with the kernel pre-installed. But people always install the Custom ROM THEN they install the Kernel, I think installing a new ROM always overwrites the kernel, if it comes with it.
Click to expand...
Click to collapse
I prefer wait for stock JB Rom and probaby I'll , but, can I already find some JB ROM?
In short, wait for the JB Custom ROM and you don't have to revert back to stock kernel, when you do the update it will automatically overwrite. Most Custom ROMs come with Stock/ordinary kernels. So then the user can flash whatever kernel they like in your case, matr1x.
Click to expand...
Click to collapse
I don't need to remove the kernel even unroot my cell, alright?
Thank you!!

Gnng said:
I didn't any backup before flashing a new kernel :crying:, so what can I do now if I want my stock kernel back?? What's a NANDroid (I know that is a tool but how can I do it?) ? Is Titanium bkp easily?
Click to expand...
Click to collapse
A NANDroid backup is a internal memory backup. You can create one by booting into Recovery (Power off your phone and Hold Power and Down on your volume buttons.) If you rooted your phone and unlocked your bootloader (that's what you had to do to flash a new kernel), you should be able to load ClockworkMod or TeamWin Recovery and do a backup of your phone.
Gnng said:
I prefer wait for stock JB Rom and probaby I'll , but, can I already find some JB ROM?
Click to expand...
Click to collapse
There's one rom but it's a port from the SDK and the amount of major bugs is high so it's not recommended but you could try another custom rom meanwhile, I can't go back to stock after trying custom roms, like AOKP and Cyanogenmod 9. Make sure you backup your apps and some settings (not everything will be compatible between stock and custom so pay close attention to which system setting you'll backup) with Titanium Backup.

To sum it all up for you
There's a Jelly Bean release which is unstable and has no sound, and will not be fixed until the REAL version comes out.
NANDroid backs up the whole internal memory on the phone including the system, it can be done from clockworkmod recovery.
Titanium backup, backs up specific settings and information that you choose, available from the playstore.
You don't need to unroot or go back to a STOCK kernel in order to flash a CUSTOM ROM. DO not however flash a STOCK rom after rooting, as at times that can cause problems.
If you want to go back to a STOCK ROM after rooting a device, there's a way, check this guide
http://forum.xda-developers.com/showthread.php?t=1063664
and choose your Nexus S model: To acquire model, go to Settings - About - Baseband version. if it says I9023 at the start that's your Nexus S's model
Choose one of the Fastboot Stock ROMs and use the Fastboot method to flash the ROM. That is a good way to go back to STOCK ROM if anything bad happens
By the way you should expect the new OTA official 4.1 update for the Nexus S to be on your model's page.
NOTE: Using Fastboot to flash a ROM is very clean. However this will delete all your data and if you do everything correctly will lock your bootloader and unroot your phone. So use Fastboot only when you really feel the need to.
Cheers
and stay tuned for Jelly Bean :victory:

andezzat said:
To sum it all up for you
You don't need to unroot or go back to a STOCK kernel in order to flash a CUSTOM ROM. DO not however flash a STOCK rom after rooting, as at times that can cause problems.
Click to expand...
Click to collapse
That means, when I receive the official 4.1 update notification, I should unroot my phone first and just install it after?

Gnng said:
That means, when I receive the official 4.1 update notification, I should unroot my phone first and just install it after?
Click to expand...
Click to collapse
OK first off, do not install the update using the system update method from about, as that is a 100% stuff up if you're still rooted or on a Custom ROM.
However to update I think flashing a stock ROM but USING Clockworkmod works fine!
Someone please confirm, as I am not 100% sure
However what I am sure about is that if you run into any troubles installing your STOCK ROM using Fastboot is very very good and clean, however there are 2 things:
1. You will wipe everything COMPLETELY
2. You need the ROM to be in a fastboot format kind of way for you to flash it
There's a guide and everything for fastboot.
---------- Post added at 12:35 AM ---------- Previous post was at 12:33 AM ----------
Personally I will wait for a custom ROM for 4.1 if it doesn't take too long as that's guaranteed and will obviously be faster and safer to install on a ROOTED device.
Someone still confirm if installing Stock ROM while over Custom ROM while ROOTED through CWM is OK or not!?

Hummm, ok...
I'm already using the Stock ROM, I just flashed a new kernel, and I prefer install the stock kernel and unroot my phone. Just to let it clean.
After I install the JB official update, maybe I flash and root again, depends of Google :laugh:
Do you know where can I download a trust official 4.0.4 kernel from the forums? My phone is a Nexus S I9020AUCKJ1, Version Number: IMM76D
Thanks!!!

[Q] cm10 unintall method for htc one v (india-gsm)

i have installed cm10 on htc one v primo-u (india gsm ) and i wish to revert to the original image.
i tried to flash India_1567201recovery_signed.img file but no success.
can someone help me with a procedure how to revert to either 1.56.720 or 2.09.720 image of the phone

romah1 said:
i have installed cm10 on htc one v primo-u (india gsm ) and i wish to revert to the original image.
i tried to flash India_1567201recovery_signed.img file but no success.
can someone help me with a procedure how to revert to either 1.56.720 or 2.09.720 image of the phone
Click to expand...
Click to collapse
How did you try to flash the RUU? You can not flash it like a normal ROM
Also if you are looking for the RUU try HERE
I see what you're trying to do, that won't work...you can't flash a recovery to get to stock because stock phone won't flash from recovery, which is why once you get root the first thing you do is flash a custom recovery. Use the RUU to flash it back to shipped state stock, or if you are trying to keep root and just want to use a different ROM. More clarification on what you are trying to accomplish would be nice.
If you did a Nandroid prior to flashing CM10 I would wipe all partitions except SD and restore the Nandroid, if all you want to do is get CM10 off your phone. Remember Nandroid Backups are your friend do them before flashing anything and save them to your PC if you don't want the SD space taken. Doing this has made flashing pain free and hassle free. If I don't like how my phone is running after a flash I can always get it right back to how it was when I was happy with it. Lastly there was a time when I had a Nandroid backup of a Sense ROM and was on AOSP and wanted to flash back to Sense, well my Backup wouldn't flash. After spending hours raising hell I did a clean install of the ROM booted once, then rebooted into recovery and flashed the Nandroid backup that had the settings I was using (when I was on Sense, it won't restore data and apps used on AOSP)...sorry if its not much help but more details are needed. But you have a starting point.

ItzCrooK2UxD said:
How did you try to flash the RUU? You can not flash it like a normal ROM
Also if you are looking for the RUU try HERE
I see what you're trying to do, that won't work...you can't flash a recovery to get to stock because stock phone won't flash from recovery, which is why once you get root the first thing you do is flash a custom recovery. Use the RUU to flash it back to shipped state stock, or if you are trying to keep root and just want to use a different ROM. More clarification on what you are trying to accomplish would be nice.
If you did a Nandroid prior to flashing CM10 I would wipe all partitions except SD and restore the Nandroid, if all you want to do is get CM10 off your phone. Remember Nandroid Backups are your friend do them before flashing anything and save them to your PC if you don't want the SD space taken. Doing this has made flashing pain free and hassle free. If I don't like how my phone is running after a flash I can always get it right back to how it was when I was happy with it. Lastly there was a time when I had a Nandroid backup of a Sense ROM and was on AOSP and wanted to flash back to Sense, well my Backup wouldn't flash. After spending hours raising hell I did a clean install of the ROM booted once, then rebooted into recovery and flashed the Nandroid backup that had the settings I was using (when I was on Sense, it won't restore data and apps used on AOSP)...sorry if its not much help but more details are needed. But you have a starting point.
Click to expand...
Click to collapse
i have installed CM10 without backing up any image, therefore i cannot restore the orifginal vendor's rom. Nandroid back would have prevented this situation. the second problem is that I couldnt find any RUU for this phone. indeed the link you attached seems to have it bu unfortunately it is in chineese and after pushing all the buttons i couldn't download the file. so my options are
1- to pray that someone will be kind enough to publish it in a manner that it is accessible
2- I have a friend with a simillar phone , can i somehow back up hus rom and restore it in mine ????
thank
romah1

Viper XL and boot.img

Hey guys I just wanna to check and make sure I'm doing everything right before I flash cause I don't need anymore paperweights
1.I have successfully unlocked my bootloader and installed twrp recovery and rooted.
2. Now I want to back up my entire setup: rom, apps, setting, data, everything so that if I ever want to return to stock then I can. I have booted into twrp and ran backup and selected all options. Is that how you perform a nandroid backup in twrp or is there more to it?
3. I want to install team venom viper xl rom. Do I have to first flash boot.img first or is the kernel the same in stock and viper xl so that isn't necessary? Do I have to do I factory reset first or what?
I'm still new to this stuff so please bear with me. Thank for all your help!!

ImagioX1 said:
Hey guys I just wanna to check and make sure I'm doing everything right before I flash cause I don't need anymore paperweights
1.I have successfully unlocked my bootloader and installed twrp recovery and rooted.
2. Now I want to back up my entire setup: rom, apps, setting, data, everything so that if I ever want to return to stock then I can. I have booted into twrp and ran backup and selected all options. Is that how you perform a nandroid backup in twrp or is there more to it?
3. I want to install team venom viper xl rom. Do I have to first flash boot.img first or is the kernel the same in stock and viper xl so that isn't necessary? Do I have to do I factory reset first or what?
I'm still new to this stuff so please bear with me. Thank for all your help!!
Click to expand...
Click to collapse
Wipe flash Rom flash boot IMG sit back enjoy

ImagioX1 said:
Hey guys I just wanna to check and make sure I'm doing everything right before I flash cause I don't need anymore paperweights
1.I have successfully unlocked my bootloader and installed twrp recovery and rooted.
2. Now I want to back up my entire setup: rom, apps, setting, data, everything so that if I ever want to return to stock then I can. I have booted into twrp and ran backup and selected all options. Is that how you perform a nandroid backup in twrp or is there more to it?
3. I want to install team venom viper xl rom. Do I have to first flash boot.img first or is the kernel the same in stock and viper xl so that isn't necessary? Do I have to do I factory reset first or what?
I'm still new to this stuff so please bear with me. Thank for all your help!!
Click to expand...
Click to collapse
Different kernel. it is using the 2.41 RUU. So go ahead and flash the boot.img
Here's what you should do for any new ROM with a different kernel.
Wipe System
Factory Reset
Flash boot.img
Flash the ROM
flash gapps (if AOSP based)
reboot and have fun
When doing a nandroid backup, it is only necessary to backup
System
Data
Boot

Ok thanks for your response but I'm still a little confused. First did I back up my current rom properly so that I can return to it later on? Secondly does viper and boot img have to be flashed or can they be installed from sdcard via twrp? If they have to be flashed whats the fastboot command.?

ImagioX1 said:
Ok thanks for your response but I'm still a little confused. First did I back up my current rom properly so that I can return to it later on? Secondly does viper and boot img have to be flashed or can they be installed from sdcard via twrp? If they have to be flashed whats the fastboot command.?
Click to expand...
Click to collapse
You backed up fine, it just takes up a little more space.
You have to extract the boot.img from the ROM and put it in the same folder as fastboot.exe
open command prompt, and navigate to the folder fasboot.exe is in and do the following command
fasboot flash boot boot.img
If it gets stuck at waiting for device, reboot into your bootloader, boot into fastboot from there. and then try again.

ImagioX1 said:
Ok thanks for your response but I'm still a little confused. First did I back up my current rom properly so that I can return to it later on? Secondly does viper and boot img have to be flashed or can they be installed from sdcard via twrp? If they have to be flashed whats the fastboot command.?
Click to expand...
Click to collapse
Viper is the Rom u flash it from twrp it's. azip file that's fkashable so make it easy and flash viper there and than flash the boot IMG from fastboot the command is all over the forums I thinks it fastnoot flash boot.img

don't be confused. read.
you always have to flash boot.img in fastboot "fastboot flash boot boot.img" then flash the zip in twrp make sure to wipe, and don't download international roms. you still have to flash the boot.img from your backed up rom.
like a hundred threads asking the same stuff because no one wants to read

DvineLord said:
don't be confused. read.
you always have to flash boot.img in fastboot "fastboot flash boot boot.img" then flash the zip in twrp make sure to wipe, and don't download international roms. you still have to flash the boot.img from your backed up rom.
like a hundred threads asking the same stuff because no one wants to read
Click to expand...
Click to collapse
I'm sorry but I did read. I saw that if you have the same kernel as that of the rom you're flashing you don't have to flash boot.img. So I asked to see if stock and viper have the same kernel. I don't want to flash anything that will brick my phone.
Now one more question if you don't mind answering. I also saw that you can't downgrade RUU. So if viper is based on 2.41 RUU and stock is 2.20 RUU then will I be able to go stock after flashing viper?
I really do appreciate yalls help. i would be where I am if it weren't for you.

ImagioX1 said:
I'm sorry but I did read. I saw that if you have the same kernel as that of the rom you're flashing you don't have to flash boot.img. So I asked to see if stock and viper have the same kernel. I don't want to flash anything that will brick my phone.
Now one more question if you don't mind answering. I also saw that you can't downgrade RUU. So if viper is based on 2.41 RUU and stock is 2.20 RUU then will I be able to go stock after flashing viper?
I really do appreciate yalls help. i would be where I am if it weren't for you.
Click to expand...
Click to collapse
Yes. Just wipe you system and do a factory reset , and flash the boot.IMG for 2.20 and then flash the Rom.
If you want true stock 2.20 then you will have to relock your bootloader and then run the 2.20 RUU. You would only want to do this if making a warranty claim or something. If you want stock rooted, then yes, do what I said above
Sent from my HTC One XL using xda app-developers app

absolutelygrim said:
Yes. Just wipe you system and do a factory reset , and flash the boot.IMG for 2.20 and then flash the Rom
Sent from my HTC One XL using xda app-developers app
Click to expand...
Click to collapse
Ok got it. I do appreciate your help. Flashing now.

downgrading only refers to the ruu not the zipped roms. so you can't run 1.85 ruu after running 2.20 ruu/ota but you can still flash a rom based on 1.85.
if you are reflashing the same rom you don't have to reflash boot.img but if you are flashing a new rom then you need to flash boot.img. 7-zip will tell you the crc32 of files so you see tell if it's a different checksum.

Viper Xl's great. Seems to be slightly slower than stock on some task, but the lack of bloatware, and the extensive customization is worth it. Haven't found any bugs or nothing so far. If anyones familiar with viperxl though what is the last app in the app drawer? Its got a chinese name? When it loads it says Dolby Surround but all the writing is in chinese?

ImagioX1 said:
Viper Xl's great. Seems to be slightly slower than stock on some task, but the lack of bloatware, and the extensive customization is worth it. Haven't found any bugs or nothing so far. If anyones familiar with viperxl though what is the last app in the app drawer? Its got a chinese name? When it loads it says Dolby Surround but all the writing is in chinese?
Click to expand...
Click to collapse
That's because you flashed the Voodoo mod, it's apart of the mod, theres a chinese part and a english one called "Dolby Digital" or "Dolby Surround"

When I flash ViperXL 3.1.0 JB do I need to flash a radio too? My phone has hboot 1.4 and software 2.2, so I understand that I cant flash radio with hboot 1.4? Does this mean I need to downgrade my hboot/software version?

CrossFire78 said:
When I flash ViperXL 3.1.0 JB do I need to flash a radio too? My phone has hboot 1.4 and software 2.2, so I understand that I cant flash radio with hboot 1.4? Does this mean I need to downgrade my hboot/software version?
Click to expand...
Click to collapse
Most people have good luck w/out flashing another radio.

ronnie498 said:
Most people have good luck w/out flashing another radio.
Click to expand...
Click to collapse
Hmm. Might there be a patch I'm missing out on? I just flashed one file -ViperXL 3.1.0 JB - Android File Host (692MB)
edit- Works now after another reinstall installed boot image first this time.

[Q] Changing Stock kernels

Hi,
I have managed to put on a kernel that's not working. Is there a way to revert back to the original kernel? I do have a nandroid backup, but re-installing that didn't put on the old kernel.
I am using Liquidsmooth ROM. Any help would be appreciated.
Thanks.

if you can boot into the rom use flashimagegui, if not do the normal fastboot the boot.img then do it again with flashimagegui to get the modules.
what kernel did you try to flash? the only kernel that will work with new liquidsmooth is cm10.1_vz-oc-linaro.3.zip. it contains modules, if you aren't s-off then you need to flash boot.img in fastboot then flash again in recovery for the modules.

DvineLord said:
if you can boot into the rom use flashimagegui, if not do the normal fastboot the boot.img then do it again with flashimagegui to get the modules.
what kernel did you try to flash? the only kernel that will work with new liquidsmooth is cm10.1_vz-oc-linaro.3.zip. it contains modules, if you aren't s-off then you need to flash boot.img in fastboot then flash again in recovery for the modules.
Click to expand...
Click to collapse
I did exactly that, presuming that it was working... But I have been facing issues. The phone restarts every once in a while and I have managed to get to this condition after multiple wipes and restoring a backup. Anyways I don't know what the issue is I was just wondering how to revert back to the original kernel.

im running Liquid-JB-v2.1-RC2-evita.zip and cm10.1_vz-oc-linaro.3.zip. there seem to be some general issues with the rom that present as basically glitching and gets worse overtime atleast for me. im pretty sure it isnt related to the kernel. but to revert kernel just load the liquidsmooth zip into flashimagegui and itll pull the needed files, let it wipe cache and dalvik then reboot.

DvineLord said:
im running Liquid-JB-v2.1-RC2-evita.zip and cm10.1_vz-oc-linaro.3.zip. there seem to be some general issues with the rom that present as basically glitching and gets worse overtime atleast for me. im pretty sure it isnt related to the kernel. but to revert kernel just load the liquidsmooth zip into flashimagegui and itll pull the needed files, let it wipe cache and dalvik then reboot.
Click to expand...
Click to collapse
I do not have s-off does the flashimagegui works even without it?

strommer666 said:
I do not have s-off does the flashimagegui works even without it?
Click to expand...
Click to collapse
yes, Flash Image GUI
you should also s-off your phone it will make life ALOT easier and the process is simple take like 2 minutes.

DvineLord said:
yes, Flash Image GUI
you should also s-off your phone it will make life ALOT easier and the process is simple take like 2 minutes.
Click to expand...
Click to collapse
Thanks I'll make sure I do that..

also new stable build of liquidsmooth just got released. you should flash it. imma flash it with a clean full wipe. but you should s-off first so you dont have to flash boot.img separately every rom.

DvineLord said:
also new stable build of liquidsmooth just got released. you should flash it. imma flash it with a clean full wipe. but you should s-off first so you dont have to flash boot.img separately every rom.
Click to expand...
Click to collapse
Ya, I saw the new version wanted to try that which is why I wanted to got to the old kernel version. I had tried installing it with the linaro kernel but it gets stuck on the boot screen.
Update: - I installed the flash gui image, then extracted and installed the kernel , factory reset the phone, then installed the latest liquid smooth build. But it is still not going ahead of the boot animation.
Update 3 :- Got the old kernel back. Did a restore. Working fine now . But still for some reason I cannot install the new ROM yet.

strommer666 said:
Ya, I saw the new version wanted to try that which is why I wanted to got to the old kernel version. I had tried installing it with the linaro kernel but it gets stuck on the boot screen.
Update: - I installed the flash gui image, then extracted and installed the kernel , factory reset the phone, then installed the latest liquid smooth build. But it is still not going ahead of the boot animation.
Update 3 :- Got the old kernel back. Did a restore. Working fine now . But still for some reason I cannot install the new ROM yet.
Click to expand...
Click to collapse
you need everything. you don't need to extract the kernel. just load the whole zip file.

DvineLord said:
you need everything. you don't need to extract the kernel. just load the whole zip file.
Click to expand...
Click to collapse
I did load the full file and the flash gui image extracted the kernel. The thing is I have the kernel now, but still I can't seem to be able to install the new version of the LiquidSmooth build. I am doing a nandroid backup of this thing and try installing it again.

well new liquidsmooth is nice, im using cwm now as recovery since ive had tons of issues with twrp since version 2.2.2.0

[Q] Cant restore stock ICS TWRP backup from JB

My HOX was running stock rooted ICS and I did a TWRP backup and flashed [ROM ][22 MAR][UrDroid][HTC One X AT&T][Stock][JB][OTA][Odexed] EVITA 3.18.502.6 using the AROMA installer which had a kernel included. Now I am trying to restore the backup, while the process shows as successful, the phone does not pass the HTC screen, it goes black where the AT&T logo is supposed to come in.
I have to reflash the JB rom to get the phone working again. However, this rom is not stable, I keep getting random crashes or reboots, so I wish to revert to stock
Any idea why this is happening and how I can fix it?
Thanks in advance.

rohangiase said:
My HOX was running stock rooted ICS and I did a TWRP backup and flashed [ROM ][22 MAR][UrDroid][HTC One X AT&T][Stock][JB][OTA][Odexed] EVITA 3.18.502.6 using the AROMA installer which had a kernel included. Now I am trying to restore the backup, while the process shows as successful, the phone does not pass the HTC screen, it goes black where the AT&T logo is supposed to come in.
I have to reflash the JB rom to get the phone working again. However, this rom is not stable, I keep getting random crashes or reboots, so I wish to revert to stock
Any idea why this is happening and how I can fix it?
Thanks in advance.
Click to expand...
Click to collapse
What hboot do you have? If you have hboot 1.14 or newer and are not s-off, you'll need to pull the kernel from the ICS rom and flash it via fastboot.

Great! I just need to track down the stock ICS kernel because I think my phone came with version 2.20.
Any idea where I can locate it?
Thanks.

rohangiase said:
Great! I just need to track down the stock ICS kernel because I think my phone came with version 2.20.
Any idea where I can locate it?
Thanks.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1671237
Custom ROMs -> Stock Rooted (Odexed/De-Odexed)
Grab any of the ICS ones and it should do the trick. If your TWRP backup backed up boot, you should also be able to pull it from the backup (\sdcard\TWRP\backups\etc.), but I've never done this before and don't have a backup handy on my phone, so I wouldn't be able to tell you exactly where you'd need to look to find it. Shouldn't be too complicated though if you poke around?