Related
I'd appreciate it if someone could give me some assistance. Basically the situation is that I wanted to get VPN working on the A7 which required tun.ko. I cross compiled the kernel and managed to get a tun.ko file and I added it to my device. Installing the module did not work, so I left it.
At some point my A7 shut off, and now it will not boot, it hangs at the ANDROID screen, before getting to the HC animation (dexmod 1.42). I am assuming at this point that my tun.ko is the issue so I created a patch update to remove the modules I had added to see if that would work.
Note: This patch is exactly the same as the ElocityMod 1.4.2 ad-hoc patch, I just changed the script actions and re-bundled.
The script only does this:
delete_recursive SYSTEM:lib/modules
delete SYSTEM:lib/tun.ko
I created the /system/lib/modules dir, so I know it exists, as does the /system/lib/tun.ko. When I try to run the update script I get the following error:
Installing Update
close from_child
E:Error in /sdcard/update.zip
(Status 6[1536])
Installation aborted.
I am trying not to flash back to the 1.4.2 as I have some investment and stupidly did not back-up before I started this venture. Any help would be appreciated.
Brad
As a side note, according to the /proc/config.gz on the tablet (kernel config) the TUN/TAP is compiled into the kernel, but not compiled as a module. For this reason I doubt VPN will work unless the apps can recognize the TUN device instead of failing because the module does not exist.
with specifics to an update script, the script desired should be as follows
Code:
run_program("/sbin/busybox", "mount", "-orw,remount","/system");
delete("/system/lib/tun.ko");
run_program("/sbin/busybox", "mount", "-oro,remount","/system");
you will need to remember to sign your update.zip after creation if you're not familiar with the process. searching on xda should turn up results for 'sign update.zip'.
i'd list the specific files and not do recursive deleting. though if introducing a kernel module caused you problems, i don't think it was merely copying/removing that had an effect, but wouldn't you have had to either issue an 'insmod' command manually or you added a call to that module using insmod added to the init.rc or a bash script. you need to remove that reference too if you did.
if your 'investment' is related to your /data folder (with your stored apps and app settings), you can use my cwm fakeflash recovery to backup and restore your /data contents (installed apps, and system settings) after a factory reset and reloading dexter's rom (using factory recovery).
alternative solutions; maybe if you were doing these kind of experiments you MIGHT have left the usb device setting on (for adb connectivity). if so, try to adb shell into the device to correct your problem by hand; type adb devices from a command prompt for fun to see if the device still lists (it did for me when softbricked once).
domito said:
I'd appreciate it if someone could give me some assistance. Basically the situation is that I wanted to get VPN working on the A7 which required tun.ko. I cross compiled the kernel and managed to get a tun.ko file and I added it to my device. Installing the module did not work, so I left it.
At some point my A7 shut off, and now it will not boot, it hangs at the ANDROID screen, before getting to the HC animation (dexmod 1.42). I am assuming at this point that my tun.ko is the issue so I created a patch update to remove the modules I had added to see if that would work.
Note: This patch is exactly the same as the ElocityMod 1.4.2 ad-hoc patch, I just changed the script actions and re-bundled.
The script only does this:
delete_recursive SYSTEM:lib/modules
delete SYSTEM:lib/tun.ko
I created the /system/lib/modules dir, so I know it exists, as does the /system/lib/tun.ko. When I try to run the update script I get the following error:
Installing Update
close from_child
E:Error in /sdcard/update.zip
(Status 6[1536])
Installation aborted.
I am trying not to flash back to the 1.4.2 as I have some investment and stupidly did not back-up before I started this venture. Any help would be appreciated.
Brad
As a side note, according to the /proc/config.gz on the tablet (kernel config) the TUN/TAP is compiled into the kernel, but not compiled as a module. For this reason I doubt VPN will work unless the apps can recognize the TUN device instead of failing because the module does not exist.
Click to expand...
Click to collapse
..alternatively alternatively i also did a update.zip of the latest factory rom that may assist with your issue, if the above solutions do not work. assuming your 'investment' isn't in the /system folder, it can format your /system folder and reinstall the /system files from the factory firmware with all correct permissions. a little examination of my update.zip could be used as a template for creating a similar one for dexter's rom, for these particular times when you'd like to re-do your /system folder and leave the rest of your partitions and data intact.
locatable, roundabout, from my twitter. same name as here.
oh. you could just write a script to execute a bash script (file.sh) thats got simple copy commands to copy your 'investment' to sdcard (/sdcard in recovery). that might be the simplest non creative approach that would allow you to continue on with a normal factory reset and reload of dexter's rom.
using bash scripts might also aid you in doing what you want without having to know or experiment with proper scripting syntax.
..oh, AND you could just edit dexter's rom update.zip to only install the system.img, and remove the rest of the files for installation, and DON"T do a factory reset..
that could help with restoring your system filesystem while leaving the rest of your data intact. didn't occur until this morning, that might be you EASIEST of the multiple suggestions listed.
Thanks for the response!
bestialbub said:
with specifics to an update script, the script desired should be as follows
Code:
run_program("/sbin/busybox", "mount", "-orw,remount","/system");
delete("/system/lib/tun.ko");
run_program("/sbin/busybox", "mount", "-oro,remount","/system");
Click to expand...
Click to collapse
This was actually what I did for my first try, with the same result.
bestialbub said:
you will need to remember to sign your update.zip after creation if you're not familiar with the process. searching on xda should turn up results for 'sign update.zip'.
Click to expand...
Click to collapse
I did not do this, I was not sure I had to.
bestialbub said:
i'd list the specific files and not do recursive deleting. though if introducing a kernel module caused you problems, i don't think it was merely copying/removing that had an effect, but wouldn't you have had to either issue an 'insmod' command manually or you added a call to that module using insmod added to the init.rc or a bash script. you need to remove that reference too if you did.
Click to expand...
Click to collapse
I did insmod it as well as modprobe, it gave me an error which was likely because (as I found later) the TUN is compiled into the kernel, which means a module could not possibly load.
bestialbub said:
if your 'investment' is related to your /data folder (with your stored apps and app settings), you can use my cwm fakeflash recovery to backup and restore your /data contents (installed apps, and system settings) after a factory reset and reloading dexter's rom (using factory recovery).
Click to expand...
Click to collapse
I'll have to take a look at that, I was no aware it existed.
bestialbub said:
alternative solutions; maybe if you were doing these kind of experiments you MIGHT have left the usb device setting on (for adb connectivity). if so, try to adb shell into the device to correct your problem by hand; type adb devices from a command prompt for fun to see if the device still lists (it did for me when softbricked once).
Click to expand...
Click to collapse
The issue with the A7 is that it's got USB host only which means I cannot connect it to my PC and adb it. This was a known issue before I bought the A7.
bestialbub said:
..alternatively alternatively i also did a update.zip of the latest factory rom that may assist with your issue, if the above solutions do not work. assuming your 'investment' isn't in the /system folder, it can format your /system folder and reinstall the /system files from the factory firmware with all correct permissions. a little examination of my update.zip could be used as a template for creating a similar one for dexter's rom, for these particular times when you'd like to re-do your /system folder and leave the rest of your partitions and data intact.
locatable, roundabout, from my twitter. same name as here.
oh. you could just write a script to execute a bash script (file.sh) thats got simple copy commands to copy your 'investment' to sdcard (/sdcard in recovery). that might be the simplest non creative approach that would allow you to continue on with a normal factory reset and reload of dexter's rom.
using bash scripts might also aid you in doing what you want without having to know or experiment with proper scripting syntax.
..oh, AND you could just edit dexter's rom update.zip to only install the system.img, and remove the rest of the files for installation, and DON"T do a factory reset..
that could help with restoring your system filesystem while leaving the rest of your data intact. didn't occur until this morning, that might be you EASIEST of the multiple suggestions listed.
Click to expand...
Click to collapse
In the end I went more heavy handed than all that and it worked out fine. I did this before I saw your response otherwise I would have tried to finesse it some more just for the fun of it.
I re-flashed with dexmod 1.41 but I did not reset or wipe anything first. Applying this over top got me booted again with all my apps. 1 quick 1.42 update (and annoying root FB upgrade) and I am back to pre-fail conditions. I backed up my stuff too.
Thanks again for all the useful tips. This type of event has happened a few times and my gut says I am getting some corruption on the NVRAM or something. Only time will tell.
adb connectivity works fine, the solution is buried in one of 5stronginos threads, maybe the cwm recovery one. google for USB_OTG.APK i think, its posted on xda w a download link.
..i also prepackage it in my firmware repack.. findable from my twitter.
Sent from my X10i using Tapatalk
bestialbub said:
adb connectivity works fine, the solution is buried in one of 5stronginos threads, maybe the cwm recovery one. google for USB_OTG.APK i think, its posted on xda w a download link.
..i also prepackage it in my firmware repack.. findable from my twitter.
Sent from my X10i using Tapatalk
Click to expand...
Click to collapse
I found this one, which looks right.
http://forum.xda-developers.com/showpost.php?p=12813894&postcount=36
I'll give it a shot. Thanks for the info.
So I've installed a custom ClockworkMod recovery and ROM on my Nexus 7 tablet. Life was good. Recently, I was running out of space and decided to delete my CWM backup (after saving it to my computer). And then, I realized I couldn't.
I went into ES File Explorer to try. I couldn't do it there.
I went into the ADB shell as root to try to remove it. No luck again, just the message when I finally DID try to remove one file:
Code:
# rm boot.img
rm failed for boot.img, Operation not permitted
What am I doing wrong?
Edit: This looks like it's ClockWorkMod (5.8.??)'s fault, but besides reading that another backup won't make the current one much larger, I don't actually know how to delete the current one.
Try "rm -rf ddd" (where "ddd" is the directory name) on the directory containing the files.
Sent from my Nexus 7
BillGoss said:
Try "rm -rf ddd" (where "ddd" is the directory name) on the directory containing the files.
Sent from my Nexus 7
Click to expand...
Click to collapse
in the development section there is a cwm flashable.zip that will delete them.. Then upgrade to latest cwm or TWRP.. its a bug from older version of cwm.. its talked about in the dev cwm thread..
good luck..
I did this in a way not mentioned here that still deserves mentioning... First I updated to the latest version of CWM available (via the Nexus 7 Toolkit) and then booted into recovery, opened the backup option, deleted the backup that was there, then cleaned the nandroids.
I could not find the aforementioned flashable zip, and because of the new CWM I had, I wanted to attempt a proper method of removal before running another rm command via the terminal. Therefore I could not verify the other methods mentioned here, my apologies.
erica_renee said:
in the development section there is a cwm flashable.zip that will delete them.. Then upgrade to latest cwm or TWRP.. its a bug from older version of cwm.. its talked about in the dev cwm thread..
good luck..
Click to expand...
Click to collapse
primetechv2 said:
I could not find the aforementioned flashable zip, and because of the new CWM I had, I wanted to attempt a proper method of removal before running another rm command via the terminal. Therefore I could not verify the other methods mentioned here, my apologies.
Click to expand...
Click to collapse
Sorry for re-opening an old thread, but I am having a problem where I have files that I cannot delete from the clockworkmods/blobs folder on my external sd card. So far, I have tried deleting them from a file explorer, deleting them as root from a file explorer, root and non-root deletes from terminal emulator, deleting through windows, adb shell deletes (with system booted).
I also wanted to try adb shell while booted into cwm, but I could not get the adb connection to work from recovery.
I also tried to find the zip file in the developer section and that's the real reason why I revived this thread...Does anyone know where the thread is with the zip file to remove these files?
I think the only way to delete them is through cwm.Boot to recovery and use the menu to delete them.
Sent from my SGH-I927 using xda app-developers app
Kodiack99 said:
I think the only way to delete them is through cwm.Boot to recovery and use the menu to delete them.
Sent from my SGH-I927 using xda app-developers app
Click to expand...
Click to collapse
When I booted to recovery, I am able to delete each of the backups that I created. These all deleted correctly. I then went to Free unused backup files (to delete the files/folders in the blobs folder) and ran that and most of the files are gone. When I boot back into the phone, there are still some files/folders there and they seem to be taking up about 4-5 GB on the card. When I try to delete them through the file manager apps (either as root or not) they will not delete and the manager reports an error (before clicking delete, the manager displays a statistics report that says that the size of the files are over 2TB so obviously something is very messed up about them). I have also tried to delete them through the terminal (again as root and regular user) and they will not delete there either and they totally mess up the terminal window with unprintable characters (the only way to recover is to exit out of the current window and start a new one).
I finally fixed this problem last night by backing up all of my stuff (except the clockworkmod folder) to my computer. I then rebooted into recovery (latest version of CWM non-touch) and formatting the ext SD Card. When I rebooted there were still some folders there (including the clockworkmod folder). I did a format from within the OS and that cleared everything out. I copied all of my stuff back from my computer and I'm now good to go. Not sure how it got messed up to begin with, but the problem is fixed now. I think I'm going to stick with TWRP from now on.
Flashed a rooted stock Android 4.2 ROM, root appeared to be broken so i figured rather than be late for work i'd flash my nandroid backup i did beforehand. Now recovery can't find the backup location, and under any file explorer it appears as '0' which i have to select first to view the files. Because of this CWM can't see the backup folder. HELP
That's because of the 4.2 multi-user feature, it needs to separate files of multiple users somehow, so it just moves all your files to "0" subdirectory. If you add another users, they will have their own folders.
It should be okay to just move /data/media/0/TWRP to /data/media/TWRP, either via TWRP's file manager or via adb shell while in recovery:
Code:
mv /data/media/0/TWRP /data/media/
Tasssadar said:
That's because of the 4.2 multi-user feature, it needs to separate files of multiple users somehow, so it just moves all your files to "0" subdirectory. If you add another users, they will have their own folders.
It should be okay to just move /data/media/0/TWRP to /data/media/TWRP, either via TWRP's file manager or via adb shell while in recovery:
Code:
mv /data/media/0/TWRP /data/media/
Click to expand...
Click to collapse
Thank you for your help but I'm using clockworkmod recovery. What do i need to change in that command to suit CWM?
Matty Matt said:
Flashed a rooted stock Android 4.2 ROM, root appeared to be broken so i figured rather than be late for work i'd flash my nandroid backup i did beforehand. Now recovery can't find the backup location, and under any file explorer it appears as '0' which i have to select first to view the files. Because of this CWM can't see the backup folder. HELP
Click to expand...
Click to collapse
Haha, I thought I was the only one! I thought I had partitioned my card somehow. I basically did the same thing as you. I also am running CWM. Its making Rom flashing almost impossible for me, I can only select & flash files from the SD "O". All my nandroids are on the regular SD selection. Did you ever find you answer Matt.?
Sent from my Nexus 7 using Tapatalk 2
I've been flashing N7 with no issues as recently as over the weekend. Today I tried to flash a new ROM and it failed. Tried a second, different ROM, same result. Do not know what I did. Any thoughts?
Error log would help greatly.
How do I get/generate the log? Haven't had to do it before.
Thanks,
Paul
The logs= errors displayed on the screen provided by the interface you use to flash the rom (recovery, computer...)
Does this help any?
TWRP V2.4.4.0
Updating partition details
E: Unable to open zip file
Error flashing zop
Updating partition details...
do I need to create a partition? Never get more details despite the tease.
Thanks,
First -
Try and download a different (NEWER) TWRP. Re-flash TWRP. Try again
or
Have you tried completely wiping the device? And pushing a ROM from ADB or using a USB OTG and Memory stick?
I had issues with my nexus becoming VERY unstable. Leading to issues.
I completely, and I mean completely, wiped. To the point that all that device basically had was a recovery, and a bootloader.
I proceeded to flash again, BOOM all fixed up.
Is there a new TWRP?
I did a factory restore after wiping everything thing, if that is what you mean?
It was working as expected last week, don't know what I did to screw it up
Boot recovery try the operation, choose advanced then copy log to sdcard. The paste the log results.
sent via electromagnetic radiation.
ibsk8 said:
Boot recovery try the operation, choose advanced then copy log to sdcard. The paste the log results.
sent via electromagnetic radiation.
Click to expand...
Click to collapse
Did this, and it said it copied but I am unable to locate it. It says 0\media\data But that folder structure doesn't exist, at least according to file expert
Will a complete wipe/restore create a partition?
pmgreen said:
Will a complete wipe/restore create a partition?
Click to expand...
Click to collapse
None of the instructions currently found in this forum alters the partitioning of the N7. Not fastboot & not the custom recovery, either.
You are chasing a red herring I think. That message you see is about the recovery performing a scan to check to see if there is a change in file systems (or partitioning of external devices) ... which might have occurred in preceding (custom recovery) operations, but didn't in this particular case.
pmgreen said:
Does this help any?
TWRP V2.4.4.0
Updating partition details
E: Unable to open zip file
Error flashing zop
Updating partition details...
Click to expand...
Click to collapse
Focus your efforts here; it certainly looks like a first-order problem.
bftb0 said:
None of the instructions currently found in this forum alters the partitioning of the N7. Not fastboot & not the custom recovery, either.
You are chasing a red herring I think. That message you see is about the recovery performing a scan to check to see if there is a change in file systems (or partitioning of external devices) ... which might have occurred in preceding (custom recovery) operations, but didn't in this particular case.
Focus your efforts here; it certainly looks like a first-order problem.
Click to expand...
Click to collapse
Think reinstalling TWRP would help? It was working fine so I'm a bit stumped what changed and why
pmgreen said:
Think reinstalling TWRP would help? It was working fine so I'm a bit stumped what changed and why
Click to expand...
Click to collapse
You can also soft-boot a recovery without actually flashing it, e.g.
Code:
fastboot boot custom-recovery.img
I suppose you could then poke around and see if it is having troubles mounting any of the normal partitions (/data, /system, or /cache). Look in the kernel boot log of the recovery (cat /proc/kmsg or "dmesg") to see if anything looks strange, etc.
There have been a couple of reports from folks who developed problems that looked like eMMC flash media errors - loss of partitions, failure to mount /data, et cetera. At the moment though, your symptoms are very generic and non-specific, as in "it doesn't boot".
I suppose you saw no errors at all reported on the screen during that stock-install-via-fastboot procedure?
bftb0 said:
You can also soft-boot a recovery without actually flashing it, e.g.
Code:
fastboot boot custom-recovery.img
I suppose you could then poke around and see if it is having troubles mounting any of the normal partitions (/data, /system, or /cache). Look in the kernel boot log of the recovery (cat /proc/kmsg or "dmesg") to see if anything looks strange, etc.
There have been a couple of reports from folks who developed problems that looked like eMMC flash media errors - loss of partitions, failure to mount /data, et cetera. At the moment though, your symptoms are very generic and non-specific, as in "it doesn't boot".
I suppose you saw no errors at all reported on the screen during that stock-install-via-fastboot procedure?
Click to expand...
Click to collapse
The only error is that it can't open the zip. I've tried downgraded TWRP, then upgrading back. Tried flashing the existing rom.
Nothing has worked. The N7 is functional, just will not allow me to flash
pmgreen said:
The only error is that it can't open the zip. I've tried downgraded TWRP, then upgrading back. Tried flashing the existing rom.
Nothing has worked. The N7 is functional, just will not allow me to flash
Click to expand...
Click to collapse
Well, if the source material can't be opened, then there is nothing to be flashed.
So maybe it is better to call this a "can't open files" problem instead of a "can't flash" problem.
Are there any special characters in the file name ... or spaces? If so, try renaming the file so the name only contains [a-z], [A-Z], [0-9] plus dash, underscore, and dot.
The other thing that can happen is if you drop a file in /data/media/0 as the root user, it will show up under /sdcard, but can't be read by non-privileged users via the /sdcard/ path. I'm not sure what the exact details are here - much less why this would effect the recovery (as you would expect everything to be running as root there) - but you can detect this problem by using a terminal emulator, and looking for differences in ownership or file permission:
Code:
$ su
# cd /data/media/0
# ls -ld *
use chown and chmod as appropriate to fix files as needed
bftb0 said:
Well, if the source material can't be opened, then there is nothing to be flashed.
So maybe it is better to call this a "can't open files" problem instead of a "can't flash" problem.
Are there any special characters in the file name ... or spaces? If so, try renaming the file so the name only contains [a-z], [A-Z], [0-9] plus dash, underscore, and dot.
The other thing that can happen is if you drop a file in /data/media/0 as the root user, it will show up under /sdcard, but can't be read by non-privileged users via the /sdcard/ path. I'm not sure what the exact details are here - much less why this would effect the recovery (as you would expect everything to be running as root there) - but you can detect this problem by using a terminal emulator, and looking for differences in ownership or file permission:
Code:
$ such
# cd /data/media/0
# ls -ld *
use chown and chmod as appropriate to fix files as needed
Click to expand...
Click to collapse
Thanks bftb, you are correct it's a can't open zip. No error than fail and it can't open the zip. It says updating partition but nothing changes
The file names are from the developers, once of which I recently successfully flashed. Tried coping the log to the SD card, but unable to find /data/media/0. Do I need to recreate a partition?
(FYI there was an auto-correct typo in my prior post - "su" not "such". Derp)
pmgreen said:
Do I need to recreate a partition?
Click to expand...
Click to collapse
No. (There is no way to do that with the tools we have anyway)
Unless what you mean by "recreate" is rebuild/reinitialize a filesystem in a partition - that's a possibility.
You need to try and figure out why you can't read files.
As a workaround, you can put files on a USB key (FAT formatted, not NTFS) and using TWRP access them by putting the USB key on the other end of a OTG cable.
Your posts are a bit vague - I can't even tell if you have tried other ROM files, whether you checked them to see if they are the correct size/checksum, etc.
pmgreen said:
Tried coping the log to the SD card, but ...
Click to expand...
Click to collapse
At this point, your best approach is still to follow the initial advice of 'ibsk8'. Look in the log file for any further details about errors that occurred.
The logs are typically in /cache/recovery/ or (while the custom recovery is running) in /tmp
Use "adb pull" to get the log file to your PC and have a look at it. If you can't find anything obvious in there, then cut-n-paste the file to http://pastebin.com and provide the link to us.
bftb0 said:
At this point, your best approach is still to follow the initial advice of 'ibsk8'. Look in the log file for any further details about errors that occurred.
The logs are typically in /cache/recovery/ or (while the custom recovery is running) in /tmp
Use "adb pull" to get the log file to your PC and have a look at it. If you can't find anything obvious in there, then cut-n-paste the file to http://pastebin.com and provide the link to us.
Click to expand...
Click to collapse
I am not familiar using ADB pull. Tried using a root file manager to access the log but don't see.
Greatly appreciate your help, let me know what other info I should paste.
Thanks,
EDIT: If you are coming here for the first time, this guide should still work, but @PorygonZRocks has created a flashable zip that should deal with a lot of these issues automatically. You can check out his post here:
https://forum.xda-developers.com/showpost.php?p=75787067&postcount=699
This method will indirectly allow you to root the LG Gpad v410 after it has been upgraded to Lollipop 5.1.1. Yes. Rooting LG v410 Lollipop. It's through a downgrade, but it works.
It took a while to get working, but here's how I did it. The process is straightforward, but the details matter greatly. You will brick your device if you mess up. Please read everything *first* before you do anything. Be sure you understand the process. I'll try to explain what's going on along the way.
An external SD card is extremely helpful for this process. You *could* adb push everything, but that will tedious.
First, you need some files.
The 4.4.2 KDZ which is a TEST OS, but it can be rooted and it downgrades to a Bump'able bootlaoder:
http://forum.xda-developers.com/g-pad-10/general/kdz-lg-g-pad-7-0-v410-t3224867
The LG 2014 Flash Tool:
http://www.mediafire.com/download/fwrcd3pdj0svjtb/LG_Flash_Tool_2014.zip
Android LG Drivers:
https://www.androidfilehost.com/?fid=24052804347802528
Parted for Android. You can probably find it other places, but I found this file:https://dl.dropboxusercontent.com/u/84115590/LG%20G2%2016GB%20Solution/sdparted-recovery-all-files.zip
EDIT: There seems to be a lot of confusion here. My bad. All you need is the file named "parted" from this zip file - nothing else. Just put that one file in the root of your external SD card.
https://dl.dropboxusercontent.com/u/84115590/LG G2 16GB Solution/sdparted-recovery-all-files.zip linked from here: http://www.**********.com/your-32gb-lg-g2-shows-only-16gb-storage-space-heres-the-fix/
EDIT2: The dropbox link is down. I've attached the file directly.
The Candy5 ROM (This will potentially save you some manual steps. Somewhat optional, but highly recommended):
http://forum.xda-developers.com/g-pad-10/development/rom-candy5-g-pad-v410-lollipop-5-1-1-v2-t3111987
Flashify APK:
http://www.apkmirror.com/apk/christian-gollner/flashify/flashify-1-9-1-android-apk-download/
TWRP for the v410:
http://forum.xda-developers.com/g-pad-10/development/recovery-twrp2-8-5-0lgv400-410-t3049568
LG One Click Root:
http://forum.xda-developers.com/lg-g3/general/guide-root-lg-firmwares-kitkat-lollipop-t3056951
(You may use Purple Drake or whatever else you want. They all use the same root script as this does and the GUI is helpful for novices.)
Android SDK (specifically adb.exe. After installing go to SDK Manager and ensure that Android SDK Platform Tools is checked):
http://developer.android.com/sdk/index.html
For clarification below, when I have commands in "quotes" they are Windows commands. When they are in `backticks` they are commands that you run inside of ADB which actually run on your device....as root. Root can screw things up. Please be extra cautious. If you blame me for messing up your device I will laugh at you. But that's not gonna happen, right? Good. Let's go.
Now that you have everything, put it all into a folder where you can access it easily.
Install the LG Drivers.
Install Android SDK (or otherwise get adb.exe).
Extract all of the archives.
Move the KDZ to the LG Flash Tool 2014 folder.
Put the tablet into Download Mode by powering it off, holding VolUp, and plugging in the USB cable. Press VolUP when instructed. You must be in Download mode before continuing.
Run LGFlashTool2014.exe. Select the KDZ file. Click "CSE Flash". Click "Start". Select "English" and click OK. Do not change anything else.
WAIT for the flash to continue. If you really want to brick your device, here's a good opportunity.
The device will reboot into Android 4.4.2. You will only have 4GB of internal storage at this point. DON'T PANIC! We are fixing it.
Enable USB debugging.
Connect the device.
Install and run LG One Click Root. Wait for the device to be rooted before proceeding.
Copy the Flashify apk, TWRP image, and Candy5 ROM to your external SD card.
Install Flashify and flash TWRP to the recovery partition.
Use the Flashify menu to reboot in to recovery.
DON'T PANIC! You will get white vertical lines on the boot screen from now on. They only show up during boot animations. A small price to pay. This may be fixed at a later date. for the time being! Thanks to marcsoup's first post ever, we have a fix! Details below. PLEASE click this link and thank him!
Things get tricky here. Copy parted to your external SD card and then run "adb shell" from Windows to get a shell in TWRP.
In TWRP, unmount /data by tapping Mount > uncheck Data.
`cp /sdcard/parted /sbin/` This copies the parted binary to /sbin so it can be executed in the path. I had trouble running `/sdcard/parted`, but YMMV.
`chmod +x /sbin/parted` Make it executable.
`parted /dev/block/mmcblk0` Run parted against the internal mmc
`p` Prints the partition table.
`rm 34` Deletes partition 34 labeled "grow". This is the root of our problem. The KDZ apparently only creates a 4GB partition, I assume so the test build has maximum compatibility with all sized devices.
`rm 33` Deletes partition 33 "userdata"
`p` Print to verify
`mkpartfs` Create a partition and put a filesystem on it. If we only expand the partition it won't help us because the filesystem is still only 4 GB.
a) name: userdata
b) type: ext2 (the tool only supports ext2. This is ok for now.)
c) start: 3439MB (the end of part 32. IT MAY BE DIFFERENT FOR YOU!) Be sure you do not omit the MB part otherwise the offset will overwrite another critical partition.
d) end: 15.8GB (where "grow" ended above. IT MAY BE DIFFERENT FOR YOU!) Be sure you do not omit the GB part otherwise the offset will overwrite another critical partition.
`p` Verify. For me it did not name the partition properly. Gotta fix that.
(if necessary) `name 33 userdata` This is critical for mount to find it in /dev/block/platform/msm.sdcc.1/by-name/ on some/all ROMS.
`p`. Verify one last time. Compare it to my partition table in the attachments. If you want to brick, delete some random partitions here.
Flash Candy5 with TWRP. It's only 239 MB, so it will flash quickly. I do this because Candy5 will reformat mmcblk0p33 from ext2 to ext4 for you. It does this as part of it's system boot, apparently. If you install a different ROM that does not do this, you can reformat it by running `make_ext4fs /dev/block/mmcblk0p33`. If your ROM does not have make_ext4, it likely has some differnt method to make an EXT4 filesystem. `/system/bin/mke2fs -t ext4 /dev/block/mmcblk0p33` may work better. Just flash Candy5 and be done with it.
Tap Wipe > Swipe to Factory Reset.
Tap Reboot > System.
WAIT!!! It will take a minute for the ROM to start the first time. You will have white lines and and possibly a white screen. WAIT. It's moving the DEX files to cache, formatting a partition, creating default folders on the internal storage, and several other things. WAIT! When the screen goes dim or turns off then it's ready.
Cycle the display or turn it on. You should be at the Candy5 lock screen.
USB debugging is on by default. Run "adb shell".
`mount | grep userdata` Make sure mmcblk0p33 is mounted.
`df` Make sure /data is 11.3 GB (or whatever size it is on non-16GB devices).
HELL YEAH, you downgraded, rooted, and fixed the partition problem. Enjoy your tablet!
Thanks to dopekid313 for finding the KDZ.
Thanks to timmytim for Candy5.
Thanks to the creators of the root script, flashify, TWRP, and XDA for being so awesome.
Thanks to marcsoup for fixing a fix to the white lines.
Thanks to navin56 for the partition dumps. PLEASE thank his post!
White lines fix.
What we are going to do is flash the aboot partition with the stock image provided by navin56. I've removed the extra files from the dump, so simply download aboot.img.7z below. Unzip it using 7zip.
These commands are to be run in TWRP. Reboot to TWRP recovery and connect with "adb shell". All of the following commands will be run in ADB under TWRP. If you cannot figure out how to get here, please post in the thread and someone will help you. Onward:
If you do everything correctly then you don't have to reflash your ROM and you won't lose data. This process can be done any time after flashing the KDZ, even before you follow the steps above to resize the userdata partition. It's a completely separate process.
Unzip aboot.img.7z so you have the file named aboot.img. You should also make sure that aboot.img's MD5 sum is e97431a14d1cee3e9edba513be8e2b52. Do not flash the 7z file. Please.
Copy aboot.img to your external SD card. It should live at /sdcard/aboot.img
Boot to TWRP and run "adb shell"
`ls -al /dev/block/platform/msm_sdcc.1/by-name/` Let's make sure we are flashing the right partition. On my device "aboot" is /dev/block/mmcblk0p6. You should verify this on your device or you WILL brick your tablet.
`dd if=/dev/block/mmcblk0p6 of=/sdcard/aboot-fukt.img` Let's back up our current aboot partition before we go flashing things just in case there are unintended consequences later. Be sure you have the same partition that "aboot" referred to in the 4th step or you have just backed up the wrong partition.
`dd if=/sdcard/aboot.img of=/dev/block/mmcblk0p6` Be sure the file exists, is the correct aboot.img, and you are flashing the right partition. You have been warned!!
Reboot TWRP and enjoy your boot animations again.
If I missed anything, please let me know. As far as I know this is the very first tutorial that details what is necessary to accomplish this. Please hit the Thanks button on every thread that you visit to download files!
FAQ:
Q: Why do I only have 11.3 GB of space when my device is 16GB?
A: The entire internal SD card (eMMC) is 16 GB. Gotta have someplace to install the bootloader, recovery, android, the modem OS, the secondary bootloader, the cache, the resource and power manager, and all of the other partitions necessary for the table to operate. Please look at the second screenshot in the OP. All of those 33 partitions take up room on the internal card. Fortunately ALL of those partitions ONLY take up about 4.4 GB. Hence the 'userdata' partition is ~11.3 GB.
If anyone wants to use my work to create a flashable zip to make it easier for novices, please do so. My problem is solved and I don't have the time to create the zip. Please post any questions and I'll gladly answer them! I'm so stoked that we have a usable downgrade method now!
Thank You, Worked Great
Thanks for making this I was gonna do it but was to lazy lol and thanks for linking my thread and giving cred instead of just linking straight to the kdz thank you
grandamle91 said:
Thank You, Worked Great
Click to expand...
Click to collapse
Glad to be of help!
dopekid313 said:
Thanks for making this I was gonna do it but was to lazy lol and thanks for linking my thread and giving cred instead of just linking straight to the kdz thank you
Click to expand...
Click to collapse
Of course! If you hadn't obtained the firmware then we'd all still be looking for a solution. It pisses me off to no end when people try to take credit for other people's work. We all just need to realize and acknowledge that we are simply standing on the shoulders of those who did the work necessary for each of us to do our work.
I just noticed since we formatted the userdata it screws up TWRP. It won't mount Data and it says the settings are corrupted
grandamle91 said:
I just noticed since we formatted the userdata it screws up TWRP. It won't mount Data and it says the settings are corrupted
Click to expand...
Click to collapse
Is this after you've rebooted into Candy5 and the partition is reformatted as ext4 (or you've done so manually)? TWRP may not be able to mount an ext2 partition.
EDIT: I just tested this. Following my instructions and flashing to Candy5, TWRP sees mmcblk0p33 (userdata) as the full size and mounts it at /emmc.
For clarification, after you run the parted commands, it will mess with the partition table and TWRP will most likely not be able to see it to remount it - at least not until after a reboot. This is why you need an external SD card from which to install ROMs.
/data not mounted
Edit: nevermind. The partition 33 was still ext2. I had to run make_ext4fs /dev/block/mmcblk0p33 and now I am able to mount /data. Thanks.
Thanks for taking the time to help us.
I followed the steps and till 33 I am good. But once I am in Candy5, I am not able to adb shell (adb not recognizing device eventhough usb debugging is on). I rebooted to recovery and adb works there. But my /data partition is not enabled in TWRP. I am not able to check it either under Mount in TWRP.
Code:
mount | grep userdata
is empty
Code:
df
does not show data
I tried this and my tablet bootlooped. I was able to get into fastboot and restore. I would GREATLY appreciate it if someone who has the time, would kindly donate their valuable time to into making an exe zip or something.
gridironbear said:
I tried this and my tablet bootlooped. I was able to get into fastboot and restore. I would GREATLY appreciate it if someone who has the time, would kindly donate their valuable time to into making an exe zip or something.
Click to expand...
Click to collapse
At what point did it bootloop? What was the last step that you took before rebooting?
Zip
I would really appreciate a zip file as I have never been savvy with adb and for whatever reason it doesn't want to work on Windows 10.
drumm3rb0y said:
I would really appreciate a zip file as I have never been savvy with adb and for whatever reason it doesn't want to work on Windows 10.
Click to expand...
Click to collapse
A zip file for what part? The only part that requires ADB directly is to fix the internal storage. You absolutely have to flash the KDZ and then root before you can do anything. If you are on 5.x then you have no possible way to root, much less flash a zip file.
If you tell me what exactly you are having issues with I will try to help.
fatbas202 said:
A zip file for what part? The only part that requires ADB directly is to fix the internal storage. You absolutely have to flash the KDZ and then root before you can do anything. If you are on 5.x then you have no possible way to root, much less flash a zip file.
If you tell me what exactly you are having issues with I will try to help.
Click to expand...
Click to collapse
The adb part is the part im having issue with. Everything else is flashed already. I was wondering if you could make a zip for the adb part so I can just flash it through twrp.
thanks for the great help. it did work perfectly to regain the lost space.
what about white lines ? is there any solution for that problem ?
I have tried flashing back stock recovery extracted from kdz, dd' but didn't help.
Now i am thinking of flashing back the aboot.bin extracted from original kdz or i can dump ".img" from another working device. (i have 4 similar devices)
what is your opinion i m not a developer and i need your advise. should i go ahead and which partition should i dd ? aboot or abootb or boot ?
regards
shahidmianoor said:
thanks for the great help. it did work perfectly to regain the lost space.
what about white lines ? is there any solution for that problem ?
I have tried flashing back stock recovery extracted from kdz, dd' but didn't help.
Now i am thinking of flashing back the aboot.bin extracted from original kdz or i can dump ".img" from another working device. (i have 4 similar devices)
what is your opinion i m not a developer and i need your advise. should i go ahead and which partition should i dd ? aboot or abootb or boot ?
regards
Click to expand...
Click to collapse
I have no solid evidence of this, but I suspect that the white lines are caused by a display driver issue where when the bootloader hands over control of the display to the kernel it doesn't get reinitialized properly. I have no ideas as to how to get rid of that at the moment but if I stumble across something I'll be sure to post here.
While I'm not an Android developer, I've been a Linux admin for 10+ years and have a lot of experience with Android devices. I'd be really hesitant to go flashing things ad hoc. While Download Mode may save you if you flash the wrong thing, I'm not entirely sure what the limitations that you may run in to with a locked bootloader are.
After having this device for months on 5.x and FINALLY being able to downgrade and run custom ROMs with root, not seeing a boot animation is a pittance to pay. But I'll keep looking.
i have same problem entered in TWRP but when ADB sheel thorough DP tools it didn't connect to my device. i m also using windows 10
Do I need to Re-mount Data ? I press format data button at TWRP and mount data. It looks work great.
After all process, it shows 16Gb total at storage, 11.04GB available. it works perfectly.
I need the stock V41010d, so I reflash the stock rom rooted at [ROM][STOCK](V410 ONLY)KOT49I.V4101d | 4.4.2 | Rooted + Busybox
Now, my Gpad is at stock V41010d, but I have a question about the boot screen, is it still with white lines and white screen? Any method to fix it?
Hello,
Thanks for the great work. unfortunately I am facing some difficulty, starting from step# 16 "Things get tricky here", how to run"adb shell in TWRP?
also can I use minimal_adb_fastboot_v1.1.3_setup.exe as mentioned in the link in the OP http://www.droidviews.com/your-32gb-lg-g2-shows-only-16gb-storage-space-heres-the-fix/ ?
also I noticed the path have been used includes 'parted' folder, but the folder I have after unzipping the parted zip called 'sdparted-recovery-all-files', do I rename the folder to 'parted' instead?
please help and excuse my broken English.
I'm also having trouble with the adb shell step. When my device is powered on normally, adb commands work. However, in TWRP mode my computer can't recognize the tablet, mount properly, and copy over parted. All the steps have been identical to this point. Any ideas?
iphone5sf said:
Do I need to Re-mount Data ? I press format data button at TWRP and mount data. It looks work great.
After all process, it shows 16Gb total at storage, 11.04GB available. it works perfectly.
I need the stock V41010d, so I reflash the stock rom rooted at [ROM][STOCK](V410 ONLY)KOT49I.V4101d | 4.4.2 | Rooted + Busybox
Now, my Gpad is at stock V41010d, but I have a question about the boot screen, is it still with white lines and white screen? Any method to fix it?
Click to expand...
Click to collapse
You shouldn't need to remount or format data. The parted command nukes the filesystem and creates a new one formatted as ext2. At this point the running kernel has the old partition table loaded and won't know that the partition has been extended. Simply flash Candy5 and reboot at this point and it will reformat the userdata partition.
See above for the white lines during the boot animation. Known issue, no fix in sight, doesn't really matter.
nmnm4alll said:
Hello,
Thanks for the great work. unfortunately I am facing some difficulty, starting from step# 16 "Things get tricky here", how to run"adb shell in TWRP?
also can I use minimal_adb_fastboot_v1.1.3_setup.exe as mentioned in the link in the OP http://www.droidviews.com/your-32gb-lg-g2-shows-only-16gb-storage-space-heres-the-fix/ ?
also I noticed the path have been used includes 'parted' folder, but the folder I have after unzipping the parted zip called 'sdparted-recovery-all-files', do I rename the folder to 'parted' instead?
please help and excuse my broken English.
Click to expand...
Click to collapse
You only need the sdparted-recover-all-files.zip from that site. "parted" is not a folder, but the binary (without a file extension) inside of that zip file. Copy that file to /sbin and you are in business.
zmali1 said:
i have same problem entered in TWRP but when ADB sheel thorough DP tools it didn't connect to my device. i m also using windows 10
Click to expand...
Click to collapse
summonholmes said:
I'm also having trouble with the adb shell step. When my device is powered on normally, adb commands work. However, in TWRP mode my computer can't recognize the tablet, mount properly, and copy over parted. All the steps have been identical to this point. Any ideas?
Click to expand...
Click to collapse
I'd recommend installing the SDK and pulling the drivers from that. Alternatively, you can try the drivers here: https://github.com/koush/UniversalAdbDriver.
Technically, when I ran the "parted" commands I was actually booted in to rooted 4.4.2 from the KDZ; I wasn't actually in TWRP. It's just not a very recommended way of going about it. I explained how to run all of this from TWRP, but there's no technical reason that you *can't* run this from Android. You just *shouldn't* because you can't cleanly unmount the filesystem and it theoretically could cause filesystem corruption. I just figured that I don't care about that partition getting corrupted since it's getting wiped out.