Develop Bugs

[Q] How to Lollipop -> KitKat root, EFS etc?

I am on stock Lollipop and plan to revert back to KitKat. I understand that it needs to be using Flash Tool. However, I have following questions:
1) How do I take backup of EFS? I am on stock non-rooted lollipop.
2) From where to download rooted KitKat KDZ?
Thanks

yusufmotiwala said:
I am on stock Lollipop and plan to revert back to KitKat. I understand that it needs to be using Flash Tool. However, I have following questions:
1) How do I take backup of EFS? I am on stock non-rooted lollipop.
2) From where to download rooted KitKat KDZ?
Thanks
Click to expand...
Click to collapse
1) You can't do it without root. No, lolipop is not rootable.
2) You can't. KDZ can't be "prerooted".
You can download any 4.4.2 kdz, install it, root using purpledrake, install twrp, make a efs backup, install prerooted 5.0 rom...

YaDr said:
1) You can't do it without root. No, lolipop is not rootable.
Click to expand...
Click to collapse
yes, I understand that. But how to preserve EFS/modem while reverting back from lolipop to kitkat? I was reading that it's required, please correct me.
YaDr said:
2) You can't. KDZ can't be "prerooted".
You can download any 4.4.2 kdz, install it, root using purpledrake, install twrp, make a efs backup, install prerooted 5.0 rom...
Click to expand...
Click to collapse
yes, but I need to go back to kk first. I was on v10J-SEA-XX before Iollipop was installed and so was looking for that kdz. Are you suggesting any kdz will do? Also, how do I safely go back to lollipop from KK without losing EFS/Modem.
Thanks

yusufmotiwala said:
yes, I understand that. But how to preserve EFS/modem while reverting back from lolipop to kitkat? I was reading that it's required, please correct me.
yes, but I need to go back to kk first. I was on v10J-SEA-XX before Iollipop was installed and so was looking for that kdz. Are you suggesting any kdz will do? Also, how do I safely go back to lollipop from KK without losing EFS/Modem.
Thanks
Click to expand...
Click to collapse
1) No way. You -can't- backup efs without root. And you can't obtain it without downgrading to 4.4.2.
2) Just flash any 4.4.2 kdz. You won't lose efs, that partition is not being written to in update process.

YaDr said:
1) You can't do it without root. No, lolipop is not rootable.
2) You can't. KDZ can't be "prerooted".
You can download any 4.4.2 kdz, install it, root using purpledrake, install twrp, make a efs backup, install prerooted 5.0 rom...
Click to expand...
Click to collapse
YaDr said:
1) No way. You -can't- backup efs without root. And you can't obtain it without downgrading to 4.4.2.
2) Just flash any 4.4.2 kdz. You won't lose efs, that partition is not being written to in update process.
Click to expand...
Click to collapse
Thanks for assuring, will that be normal or cse flash?

yusufmotiwala said:
Thanks for assuring, will that be normal or cse flash?
Click to expand...
Click to collapse
CSE

yusufmotiwala said:
I am on stock Lollipop and plan to revert back to KitKat. I understand that it needs to be using Flash Tool. However, I have following questions:
1) How do I take backup of EFS? I am on stock non-rooted lollipop.
2) From where to download rooted KitKat KDZ?
Thanks
Click to expand...
Click to collapse
I am having the same problem and strongly advice to hang on with lollipop till a valid tutorial is available for safe downgrade.
Till now I have tried flashing Kitkat over 10 times and every time I get an unknown baseband, null imei problem. I have also tried backing up EFS from lollipop and restoring on Kitkat but that doesnt work, maybe if you have EFS backup of your Kitkat version you can safely downgrade but otherwise it is not possible.
I believe the Samsung Lollipop update came with an EFS update which makes Kitkat unable to read Lollipop EFS, and without EFS you won't be able to use the phone properly.
Hope my experience helps.

rijulg said:
I am having the same problem and strongly advice to hang on with lollipop till a valid tutorial is available for safe downgrade.
Till now I have tried flashing Kitkat over 10 times and every time I get an unknown baseband, null imei problem. I have also tried backing up EFS from lollipop and restoring on Kitkat but that doesnt work, maybe if you have EFS backup of your Kitkat version you can safely downgrade but otherwise it is not possible.
I believe the Samsung Lollipop update came with an EFS update which makes Kitkat unable to read Lollipop EFS, and without EFS you won't be able to use the phone properly.
Hope my experience helps.
Click to expand...
Click to collapse
Here is a valid Tutorial that is available for Safe Downgrade :- http://forum.xda-developers.com/showthread.php?t=2785089 :good:
I Believe this is an LG G3 thread, so talking of Samsung Lollipop is nonesense here..:silly::silly:

ota update rooted d855

hi, I got ota update today and my g3 is rooted.
I tried updating rooted and it failed, so I checked online to find a solution and I tried to do the "restore upgrade errors" from lg pc suite and it didnt find problems to fix.
so I tried "full unroot" from superSU so now I dont have root and update is failing from phone with 0x1117008 error and doesnt work from pc suite.
how can I do the update? (prefer without backup everything and then wipe...)

Hi you have to go into lg pc suite and wake phone choose reconnect then from mobile tab choose restore upgrade errors....

chainsuk said:
Hi you have to go into lg pc suite and wake phone choose reconnect then from mobile tab choose restore upgrade errors....
Click to expand...
Click to collapse
that's what I did.
it says "No upgrade items to fix"

Try going into settings then backup and reset/then choose factory data reset then try lg pc suite again thats what i did and it worked..

chainsuk said:
Try going into settings then backup and reset/then choose factory data reset then try lg pc suite again thats what i did and it worked..
Click to expand...
Click to collapse
yes I know this will work buy I hope someone will have a solution without wipes so I won't have to backup and restore

nupity said:
yes I know this will work buy I hope someone will have a solution without wipes so I won't have to backup and restore
Click to expand...
Click to collapse
Remember you will lose root and I have not been able to re-root using the script method after installing the update via PC Suite this morning.
If root is important to you may be worth waiting a bit.

divvykev said:
Remember you will lose root and I have not been able to re-root using the script method after installing the update via PC Suite this morning.
If root is important to you may be worth waiting a bit.
Click to expand...
Click to collapse
so if I will wait there will be a method to update? All I want is a rooted stock, and a new update has come out. how can I update?

I have a hard time understanding when people want the elevated permissions on their phone, but do not want a means to restore it when they eventually mess it up.
The best method for running a rooted stock is:
Root your device
Unlock your bootloader (if available)
Install a custom recovery
Wipe caches and make a backup
Flash a rooted stock image or a stock-based ROM.
Backup regularly and before any significant change to System.
Enjoy!

epidenimus said:
I have a hard time understanding when people want the elevated permissions on their phone, but do not want a means to restore it when they eventually mess it up.
The best method for running a rooted stock is:
Root your device
Unlock your bootloader (if available)
Install a custom recovery
Wipe caches and make a backup
Flash a rooted stock image or a stock-based ROM.
Backup regularly and before any significant change to System.
Enjoy!
Click to expand...
Click to collapse
I don't think you got me.
I have a stock that I rooted, and there is an update from LG and I want to update but it won't let me because I'm rooted.
the question is: how can I update my phone without backing up and then wipe?

nupity said:
I don't think you got me.
I have a stock that I rooted, and there is an update from LG and I want to update but it won't let me because I'm rooted.
the question is: how can I update my phone without backing up and then wipe?
Click to expand...
Click to collapse
I think I do understand. You are running a rooted stock, want to take an OTA to a new stock, and have it be rooted as well. Correct?

epidenimus said:
I think I do understand. You are running a rooted stock, want to take an OTA to a new stock, and have it be rooted as well. Correct?
Click to expand...
Click to collapse
yes, if it can not be rooted at this moment but will be it's fine too

There is never a guarantee that it will be and it may take months. Many times the update is just to fix the exploit that allowed you to root! What I think that you are missing is that you should never accept an OTA if you are looking to run rooted stock. Rooting is something that is typically done ONCE. And once you do, it is advisable to never accept an OTA again.
If you want to run a newer version of stock and have it be rooted, you flash a pre-rooted version via your custom recovery or flash SuperSU via your custom recovery.
Accepting an OTA with a custom recovery is usually disastrous, too.

nupity said:
so if I will wait there will be a method to update? All I want is a rooted stock, and a new update has come out. how can I update?
Click to expand...
Click to collapse
Use lg-flash-tool download whatever new version you want and flash without wiping look here >> http://forum.xda-developers.com/showthread.php?t=2785089 << this way you will not lose any data Then root it afterwards

tallman43 said:
Use lg-flash-tool download whatever new version you want and flash without wiping look here >> http://forum.xda-developers.com/showthread.php?t=2785089 << this way you will not lose any data Then root it afterwards
Click to expand...
Click to collapse
ok, but I don't understand which file should I download. I have d855 and the new update that people said here they got yesterday

nupity said:
ok, but I don't understand which file should I download. I have d855 and the new update that people said here they got yesterday
Click to expand...
Click to collapse
Depends which one your after newest is 20p..
EDIT LOOK HERE >> http://lg-phone-firmware.com/index.php?id_mod=41 <<

LG G4 problem with stock reset

Hello,
Everyone I have a problem with my LG G4. I rooted it a few months ago and now I ran into a problem so I decided to do a factory reset in hopes to get a clean stock version. After the phone was cleaned off I noticed that Super SU was still installed which I thought was weird so I checked the rooted status and it was still rooted. I have no idea how it could still be rooted after a factory reset. I want to do all the updates for the phone and re-root it again but it is stuck being root at the moment.
So I found this guide --> [Guide] LG G4 Stock Firmware (Go Back to Stock) KDZ & TOT Method.
I couldn't get this flash kit to work on my G4. I have tried it on a Windows 10 laptop and windows 7 laptop to see if there was a difference and still no luck.
Does anyone have any other methods of resetting an LG G4?
Thanks everyone

Just download the kdz you need and flash it using this tool. Works 100%. Cheers

Follow_and_Feel said:
Just download the kdz you need and flash it using this tool. Works 100%. Cheers
Click to expand...
Click to collapse
Does it matter that it is a verizon with vs98611a?

If you still have the backed up system.img (before rooted), you can flash it back like you did to root. Please read in the low effort root thread how to backup system.img (before root) and to restore it. I also ran into this problem, supersu couldnt be full unroot and I had to restore the backed up system.img (since I didnt have the kdz).

hikku13 said:
If you still have the backed up system.img (before rooted), you can flash it back like you did to root. Please read in the low effort root thread how to backup system.img (before root) and to restore it. I also ran into this problem, supersu couldnt be full unroot and I had to restore the backed up system.img (since I didnt have the kdz).
Click to expand...
Click to collapse
Thanks for the information. I am new to this and did not back up my system. Does anyone have a clean KDZ for verizon VS98611A? What's the best way to restore the backup?

Terrofmen said:
Thanks for the information. I am new to this and did not back up my system. Does anyone have a clean KDZ for verizon VS98611A? What's the best way to restore the backup?
Click to expand...
Click to collapse
Just search along XDA. Actually you can find everything yourself if you do a proper search.
Check this.
And please hit thanks, if I helped
Cheers

Unrooting help URGENT

Hi I want to unroot my G3 so I can get marshmallow without the fuss and stuff. The thing is flashing a stock lollipop will delete my data, which to me is very important. So I really have no idea of how to backup fully(except rom) other than taking a nandroid. Are there any other ways of unrooting which will undo my mods and stuff, keeping in mind I'm on a stock rom which is rooted, or any simple way to do a backup and restore from a rooted rom to a stock rom.

AryG15 said:
Hi I want to unroot my G3 so I can get marshmallow without the fuss and stuff. The thing is flashing a stock lollipop will delete my data, which to me is very important. So I really have no idea of how to backup fully(except rom) other than taking a nandroid. Are there any other ways of unrooting which will undo my mods and stuff, keeping in mind I'm on a stock rom which is rooted, or any simple way to do a backup and restore from a rooted rom to a stock rom.
Click to expand...
Click to collapse
If I'm not wrong, when you flash the .KDZ it will un-root automatically your device. But just download Titanium Backup and backup all your apps, then install the bumped version of the MM (if you don't have TWRP installed, it is very easy to do it in LL).
I don't remember if Titanium can install all your apps back with theirs respectives datas without root, but you can root the device again if you install the .zip via the custom recovery. You can do it as well if you flash the KDZ, but as I have installed the bumped Marshmallow, I'll let someone else explain it to you.
Of course, if you still want to unroot, as you are in lollipop you probably used Kingroot or some app like that. Just open the app and try to find an option to unroot, most of them have it right when you open it.
Sorry for any typo or broken english, I'm in kind of a hurry

Perrotti said:
If I'm not wrong, when you flash the .KDZ it will un-root automatically your device. But just download Titanium Backup and backup all your apps, then install the bumped version of the MM (if you don't have TWRP installed, it is very easy to do it in LL).
I don't remember if Titanium can install all your apps back with theirs respectives datas without root, but you can root the device again if you install the .zip via the custom recovery. You can do it as well if you flash the KDZ, but as I have installed the bumped Marshmallow, I'll let someone else explain it to you.
Of course, if you still want to unroot, as you are in lollipop you probably used Kingroot or some app like that. Just open the app and try to find an option to unroot, most of them have it right when you open it.
Sorry for any typo or broken english, I'm in kind of a hurry
Click to expand...
Click to collapse
When I said marshmallow I meant LG marshmallow which has begun being released in Poland, not Google stock.

AryG15 said:
When I said marshmallow I meant LG marshmallow which has begun being released in Poland, not Google stock.
Click to expand...
Click to collapse
And so do I. There is a bumped version of the LG MM, it is right on the Android Development first page, just download and flash it if you don't want to lose your custom recovery with the KDZ

Perrotti said:
And so do I. There is a bumped version of the LG MM, it is right on the Android Development first page, just download and flash it if you don't want to lose your custom recovery with the KDZ
Click to expand...
Click to collapse
Oh right ok. Do you have any way of restoring data if I flash back to a lollipop rom with stock recovery?

AryG15 said:
Oh right ok. Do you have any way of restoring data if I flash back to a lollipop rom with stock recovery?
Click to expand...
Click to collapse
You can always root it again and restore your data using Titanium =P. The recovery is only needed to flash custom roms ou .zip files, like Viper4Android (although you can download the non-official one from Play Store), mods and etc.
I know there are some apps that don't need neither root nor custom recoverys, but I haven't used any of them, so I will let someone with more experience in that area explain it to you.
Just one more thing: I saw that there are ways of downgrading back to lollipop if you flash the official KDZ, but they're a little bit tricky, so I still recommend you to flash the .zip through TWRP (upgrade it to the 2.8.7.1 version if you haven't done it already). If you need more help, or if I wasn't clear enough, just mention or quote me and I'll se if I can help

Perrotti said:
You can always root it again and restore your data using Titanium =P. The recovery is only needed to flash custom roms ou .zip files, like Viper4Android (although you can download the non-official one from Play Store), mods and etc.
I know there are some apps that don't need neither root nor custom recoverys, but I haven't used any of them, so I will let someone with more experience in that area explain it to you.
Just one more thing: I saw that there are ways of downgrading back to lollipop if you flash the official KDZ, but they're a little bit tricky, so I still recommend you to flash the .zip through TWRP (upgrade it to the 2.8.7.1 version if you haven't done it already). If you need more help, or if I wasn't clear enough, just mention or quote me and I'll se if I can help
Click to expand...
Click to collapse
Honestly all I really want is to get rid of root on my phone. Would SuperSU's unroot work so I can get to a state where I can use OTAs again?

AryG15 said:
Honestly all I really want is to get rid of root on my phone. Would SuperSU's unroot work so I can get to a state where I can use OTAs again?
Click to expand...
Click to collapse
There are 2 ways to get stock marshmallow running on d855s now:
1. Flash via TWRP 2.8.7.0 by following instructions from here.
2. Downloading KDZ file from here and flashing using LG Flash Tool 2014 or LGUP tool.
I would recommend that you use method 1 since you are rooted. You can use TiBackup to backup your apps+data and after flashing you will still have root and you can restore apps+data using TiBackup.
Also, method 1 is better than method 2 because if you use method 2, you will lock your bootloader and lose root. You MAY not be able to downgrade to Lollipop, and I don't think there's a reliable way to root stock marshmallow just yet.

tietganFTW said:
There are 2 ways to get stock marshmallow running on d855s now:
1. Flash via TWRP 2.8.7.0 by following instructions from here.
2. Downloading KDZ file from here and flashing using LG Flash Tool 2014 or LGUP tool.
I would recommend that you use method 1 since you are rooted. You can use TiBackup to backup your apps+data and after flashing you will still have root and you can restore apps+data using TiBackup.
Also, method 1 is better than method 2 because if you use method 2, you will lock your bootloader and lose root. You MAY not be able to downgrade to Lollipop, and I don't think there's a reliable way to root stock marshmallow just yet.
Click to expand...
Click to collapse
I think you're misunderstanding me, I'd like to go back to an unrooted version of lollipop and eventually get the official marshmallow update. I don't want to get involved in flashing and stuff, it's just time consuming. So to sum it up - go to unrooted lollipop with all my data(no root mods) and wait for official update.

AryG15 said:
I think you're misunderstanding me, I'd like to go back to an unrooted version of lollipop and eventually get the official marshmallow update. I don't want to get involved in flashing and stuff, it's just time consuming. So to sum it up - go to unrooted lollipop with all my data(no root mods) and wait for official update.
Click to expand...
Click to collapse
i think you can use an app called Helium. Then go back to stock using LG Flash Tool 2014 and lollipop kdz

tietganFTW said:
i think you can use an app called Helium. Then go back to stock using LG Flash Tool 2014 and lollipop kdz
Click to expand...
Click to collapse
Doesn't helium just do rooted devices? (I had that problem on Xperia devices)
Plus any recommendations for apps to backup everything else?

tietganFTW said:
i think you can use an app called Helium. Then go back to stock using LG Flash Tool 2014 and lollipop kdz
Click to expand...
Click to collapse
He wants to unroot the phone and keep all his data, so the only way he could flash the LL kdz and keep his apps would be rooting again and installing the backup using Titanium.
@OP, what root metod did you use? Helium propably will work, but I haven't used it yet. Try opening your SuperSU app and selecting the option to unroot in the settings. Most of 'em have it.

Perrotti said:
He wants to unroot the phone and keep all his data, so the only way he could flash the LL kdz and keep his apps would be rooting again and installing the backup using Titanium.
@OP, what root metod did you use? Helium propably will work, but I haven't used it yet. Try opening your SuperSU app and selecting the option to unroot in the settings. Most of 'em have it.
Click to expand...
Click to collapse
I used http://forum.xda-developers.com/lg-g3/general/guide-root-method-lg-devices-t3129197? to root. I'd use the unroot on my SuperSU but I'm not sure if it'd get me to a state where I can use OTA again. Would I unroot automatically if I updated my phone via a PC?

AryG15 said:
I used http://forum.xda-developers.com/lg-g3/general/guide-root-method-lg-devices-t3129197? to root. I'd use the unroot on my SuperSU but I'm not sure if it'd get me to a state where I can use OTA again. Would I unroot automatically if I updated my phone via a PC?
Click to expand...
Click to collapse
If you flash the KDZ using the CSE_Flash option, yes, it will unroot the phone. If you just dirty flash it, I don't know, maybe.
If you unroot by using the option in SuperSU, you'll be able to update using OTA, you will only have some issues (aka bootloops) if you have a custom recovery installed. If you have, don't EVER try to install ANY OTA.

Perrotti said:
If you flash the KDZ using the CSE_Flash option, yes, it will unroot the phone. If you just dirty flash it, I don't know, maybe.
If you unroot by using the option in SuperSU, you'll be able to update using OTA, you will only have some issues (aka bootloops) if you have a custom recovery installed. If you have, don't EVER try to install ANY OTA.
Click to expand...
Click to collapse
I used autorec to get twrp(fairly sure I don't have the latest version of twrp either) would I be fine for ota if I use autorec to go back to stock recovery and then unroot via supersu?

AryG15 said:
I used autorec to get twrp(fairly sure I don't have the latest version of twrp either) would I be fine for ota if I use autorec to go back to stock recovery and then unroot via supersu?
Click to expand...
Click to collapse
If you manage to install the stock recovery and then unroot, you are good to go!
Enviado de meu LG-V500 usando Tapatalk

Perrotti said:
If you manage to install the stock recovery and then unroot, you are good to go!
Enviado de meu LG-V500 usando Tapatalk
Click to expand...
Click to collapse
Ok thanks, are there any ways to repair the update via lg pc suite?

AryG15 said:
Ok thanks, are there any ways to repair the update via lg pc suite?
Click to expand...
Click to collapse
By repairing, you mean just unroot and install the stock recovery back? I don't think so, the .KDZ file is a full OS. If you flash it you will have your stock recovery and will unroot, but your phone will be factory reseted

Perrotti said:
By repairing, you mean just unroot and install the stock recovery back? I don't think so, the .KDZ file is a full OS. If you flash it you will have your stock recovery and will unroot, but your phone will be factory reseted
Click to expand...
Click to collapse
Oh so that's a dead end. Anyways for some reason autorec can't restore stock recovery, are there other ways of doing that?

AryG15 said:
Oh so that's a dead end. Anyways for some reason autorec can't restore stock recovery, are there other ways of doing that?
Click to expand...
Click to collapse
I don't think there is any option besides restoring the stock recovery. I've seen a way of doing in somewhere in a Brazilian forum, but you would have to have a backup of it, which I don't think you do. Anyway, your best chance is to use titanium backup to backup your data (and move your photos and videos to the sd card), restore the system by flashing it using the flash tool, root it again, restore everything using titanium, and unroot. But I highly recommend you to keep your device the way it is, and update just when there is a deodexed Rom or a custom stock Rom available. After you get used to having root and a custom recovery, there is no turning back.
Enviado de meu LG-D855 usando Tapatalk

How to remove root on Samsung Note 10 plus and not lose IMEI

Dear all. I recently bought a Note 10 plus, and it was rooted and its imei number is changed. I'd like to remove root without losing current imei or install OTA updates without losing IMEI. Your help will be much appreciated.
Thanks you

You can unroot without affecting IMEI.
Although it's advisable to backup EFS partition. Of course make sure you backup your data.

XDHx86 said:
You can unroot without affecting IMEI.
Although it's advisable to backup EFS partition. Of course make sure you backup your data.
Click to expand...
Click to collapse
How can I go about it

Note4 N910C said:
How can I go about it
Click to expand...
Click to collapse
Follow these steps:
Flash TWRP using Odin, here is how.
Backup your data and EFS partition, follow this guide. (Only follow method 1).
Unroot:
If it's rooted with magisk, then unroot using magisk, here is how. Alternatively you can install OTA updates without removing root if it's rooted with magisk. Follow this guide.
If it's rooted with superSu or other third party apps - Like kingoroot - then you must flash stock ROM. You can get your stock ROM from here, and here is how to flash Samsung stock ROM using Odin.
4. Finally, restore your backup only if you flashed stock ROM or something goes wrong (IF you already have the correct IMEI displayed then don't restore the EFS partition but only restore your data).​

XDHx86 said:
Follow these steps:
Flash TWRP using Odin, here is how.
Backup your data and EFS partition, follow this guide. (Only follow method 1).
Unroot:
If it's rooted with magisk, then unroot using magisk, here is how. Alternatively you can install OTA updates without removing root if it's rooted with magisk. Follow this guide.
If it's rooted with superSu or other third party apps - Like kingoroot - then you must flash stock ROM. You can get your stock ROM from here, and here is how to flash Samsung stock ROM using Odin.
4. Finally, restore your backup only if you flashed stock ROM or something goes wrong (IF you already have the correct IMEI displayed then don't restore the EFS partition but only restore your data).​
Click to expand...
Click to collapse
So my device was flashed using eftsu , should I flash twrp in order to make a backup of my efs folder?

Note4 N910C said:
So my device was flashed using eftsu , should I flash twrp in order to make a backup of my efs folder?
Click to expand...
Click to collapse
I stated everything clearly in my reply and the guides are trustworthy.

XDHx86 said:
I stated everything clearly in my reply and the guides are trustworthy.
Click to expand...
Click to collapse
Hello I have the same phone and the rooted device. If I get an EFs backup, will these apps work? Samsung pass, samsung werable, secure folder ... Because it doesn't work on the rooted device.

ercanziyanak said:
Hello I have the same phone and the rooted device. If I get an EFs backup, will these apps work? Samsung pass, samsung werable, secure folder ... Because it doesn't work on the rooted device.
Click to expand...
Click to collapse
Knox is disabled after rooting, similarly anything knox dependant will be disabled as well.
EFS partition isn't even remotely related to Knox I don't know why you thought of that.