Good morning
I have:
LG G Pad 8.3 with LG's custom interface OS
Android version 4.4.2
Kernel version 3.4.0
Build number KOT49I.V50020b
Software version V50020b
Here is an image of the software information:
http://s30.postimg.org/taiyvu2k1/2014_06_28_14_31_41.png
I have already:
The LG drivers installed and updated -
Rooted the G Pad with towelroot's tr.apk (many thanks to the guy who made that method!)
Root checker and SuperSU installed and verifying the device is rooted
Google USB drivers (after rooting, the device refused to be recognized through the USB - installing the Google USB drivers seemed to fix that, although occasionally it dissappears again and I have to unplug/replug the USB cable)
Google ADT Bundle (adt-bundle-windows-x86_64-20140624 - although to be honest, my knowledge of using this program is limited)
Flashify (and Rashr - uncertain which is best to use, although both look good)
My goal:
Install TWRP
Use TWRP to install Cyanogen Mod
I'm using Windows 7 64-bit. My G Pad has a micro SD card, which it can also write to (thanks to the G Pad being rooted). I'm a competent Windows and Android user, but by no means a hacker. If I want to upgrade or fix something, I read read read and try try try. But installing a new OS on my tablet is a new experience and I don't want to turn my tablet into a permanent brick! I have done all my homework, and think I know all the concepts, and generally the procedure. Now I just need the specific files and procedure for my G Pad.
My questions are:
1) Which TWRP recovery/boot image should I use to flash my device? (I tried a version, and briefly turned my G Pad into a brick! Fortunately I tried some power+volume combinations that I discovered, and that seemed to return to the original system.) My best options I have found seem to be:
http://forum.xda-developers.com/showthread.php?t=2551499
plus using step 3 here (a loki-exploitable ABOOT and TWRP)
http://forum.xda-developers.com/showthread.php?t=2698267
...or only:
http://teamw.in/project/twrp2/213
2) Do I need to use an aboot/loki file first? (Apparently 4.4.2 doesn't have a loki exploit? I'm a little unclear about this tbh.)
3) Can/should I use ROM Toolbox or ROM Manager?
4) If you try to flash a TWRP, and it doesn't work, does/can the device just return to the standard OS? (This is what seems to have happened with my G Pad.)
5) Should I wait until the community has more experience TWRP-ing and modding the G Pad Kit Kat 4.4.2, V50020b device? (There seem to be a lot of posts with people installing TWRP and installing another OS.)
Many thanks in advance. And while I am decent with computers and technology in general, I humbly ask to speak/explain it to me including steps you probably already know are obvious(!) - I don't want to miss anything, and it is probably not obvious for me, as this is more or less my first time! If I can make this question clearer, or can provide better information, I will update this comment. Again, many thanks in advance!
This TWRP worked for me http://forum.xda-developers.com/showthread.php?t=2641409 and for version V50020b.
With this recovery you can flash LG based ROMS like LRS G Pad http://forum.xda-developers.com/showthread.php?t=2621904
If you want to install an AOSP based rom you have to downgrade to a 4.2.2 rom or bootimage http://forum.xda-developers.com/showthread.php?t=2621904 (flash the 4.2.2 zip from recovery , reboot again to recovery , and then flash CM or AOSP based rom)
Thanks!
komos said:
This TWRP worked for me http://forum.xda-developers.com/showthread.php?t=2641409 and for version V50020b.
With this recovery you can flash LG based ROMS like LRS G Pad http://forum.xda-developers.com/showthread.php?t=2621904
If you want to install an AOSP based rom you have to downgrade to a 4.2.2 rom or bootimage http://forum.xda-developers.com/showthread.php?t=2621904 (flash the 4.2.2 zip from recovery , reboot again to recovery , and then flash CM or AOSP based rom)
Click to expand...
Click to collapse
Thanks for the links and information! I don't have time to try yet, but when I do, I'll post the results.
I have a newly purchased verizon LG G3 that updated to 23C on its own. I have already rooted the device following a howto on lgg3 subreddit but in order to install Cyanogenmod the Cyanogenmod wiki says the phone needs to be 12B or lower. I found this http://forum.xda-developers.com/showthread.php?t=2799647 which says I can restore the phone back to 10C (it doesnt say 10C in the gudie but the user who posted on reddit said it) but I need the LG G3 files and I do not know where to get them. Any advice/recommendations how to get this? Is it possible I can perform a full backup incase something goes wrong I can restore the phone (its rooted already)?
Hi,
I purchased the phone in the UK from the network carrier Vodafone. I have done a fair bit of research on the rooting and unrooting process mainly via videos and reading tutorials on XDA.
I would like to root the phone and gain super user access and install some Xposed modules but would also like to be able to unroot and flash back to a stock Vodafone firmware encase I need to claim under warranty. I have been trolling the internet to get the correct KDZ file and found this site (ttp://devtester.ro/projects/lg-firmwares/country.php?country=United+Kingdom). I believe that the correct firmware may be on here but am a little confused on what the suffix and software version means to be honest.
The reason for my confusion is that I updated the firmware to 6.0 Marshmallow through the LG bridge but when I now check my phones software version it states v20b-234-15. I assume this is right but from memory the first software version when I got the phone was something like H81510B_00.
I cant remember exactly what it was before unfortunately but the KDZ files I have found state H81510C_00 (Suffix - AVDFVK) and H81510C_00 (AVDFLR) and this does seem to make sense but I'm thinking it was B instead of C but and not 100% on that.
Do you think these KDZ files would be the correct one to flash back to encase I run in to some problems rooting?
I am also assuming that this KDZ is Android Lollipop and not Marshmallow so is it OK to use this to revert back from Marshmallow?
Thanks and any help would be much appreciated.
Ross
The 10X version are all Lollipop, 20X is marshmallow.
When flashing a KDZ on your phone, what's important is what model your phone is. H815 in your case.
If you want to restore to stock in case something goes wrong, you can find everything here: http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
In there is a link to this directory: http://storagecow.eu/index.php?dir=Xda/LG+G4/ where you find pretty much all KDZ files for G4 phones.
I'm not that experienced myself, but I rooted my phone just recently and I can share my experience with you.
I have a H815. It was a V10c-TWN-XX version (Taiwan). I updated to Marshmallow with LG Bridge also and the new software version was V20b-TWN-XX.
Marshmallow rooting is not possible on my phone because I can't unlock the bootloader on it. And Marshmallow rooting is only possible with an unlocked bootloader. Unlocking the bootloader is only possible on European phones (http://developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryTypeCode=ANRS). I asked autoprime (renown user and developer here) if I can unlock bootloader after flashing an European KDZ on it. He said no, having European software on it is not enough, it has to be a phone manufactured for the european market. Dont know why, guess because of different hardware.
So, not being able to root MM, I had to revert back to stock (downgrade) using one of the KDZs.
I chose the most recent one in the directory I linked (which is the Poland H81510E). In the "Go Back to Stock" thread I linked the OP says to use LG Flash Tool 2014, which unfortunately doesn't work with Marshmallow. But fret not, it works with LG UP! http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
When I tried flashing the KDZ with Flash Tool 2014, the process failed with an error at 5%. It worked flawlessly with LG UP. Here's more information regarding downgrading, but it really isnt hard. Just download + install LG UP. Launch it. Connect your phone. Choose KDZ file. Select option "upgrade". Hit start.
NOTE: after the firmware update was done, the phone rebooted automatically and for me it stuck at at the LG Logo (bootloop). But a simple hard factory reset did it, the phone booted and my new version was 10e-something. With Lollipop 5.1 of course.
After that, I rooted my phone using this pre-rooted image: http://forum.xda-developers.com/g4/development/h815-eu-l-p-t-sea-twn-t3176195
and this guide: http://forum.xda-developers.com/g4/...-tmo-vzw-intl-variants-soon-root-lg-t3164765/
I now have a "H81510e-EUR-XX" Lollipop 5.1 with root (SuperSU 2.49).
I don't really know about Vodafone and if carrier specific firmware is necessary in this case. If not, you could use any 815 firmware.
From the site you have linked with the KDZ files..... it seems they are all the same.
If you check the table for H815 KDZs from Vodafone, there are some 10C and 10D versions. Now I compared the fileKey parameter in the URL to the 10C files and the 10D files and also the bytes of the files.
All the 10C version are identical to each other, same for 10D.
Check out this screenshot I made for you: http://i.imgur.com/Ie0w4us.png
Bytes are also identical, so it's pretty safe to say those are the same files.
Dont know why they are listed several times there. The suffix doesnt matter.
I'd grab a 10D if I were you. But I think the Poland 10E should work, too. Better confirm it with somebody else though.
If you flash your system to 10e, you can use the pre-rooted image I used. Otherwise you will have to inject root yourself: http://forum.xda-developers.com/g4/general/lg-g4-100-root-success-directives-root-t3180586. In this method you create an image of your system and inject root into the image, which you then flash back on your phone.
I tried to root the tablet using KingRoot (which worked) then tried to replace it with SuperSU (which did not work) and some how things got all jacked up. Now when the tablet boots, it give an SUID inconsistency error. I tried to factory reset it to see if that would fix it, but it didn't. I'm looking to find a way to get a factory/stock image and flash it some how. I searched around on the forum and didn't really find any definitive answer. Would I use something like LGUP or something alike to flash a stock image? I have the stock recovery as well.
If you found a KDZ you could use LG Flash Tool 2014 to flash it from a Windows PC. I haven't fooled with LGUp much because it doesn't support as many devices as LG Flash Tool 2014 and I don't think I could get it to work on either the VS985 Verizon G3 or VK810 Verizon G Pad 8.3. That said, it wouldn't hurt to try LGUp if you found a stock image to flash, but I won't be surprised if you'll have to go back to using LG Flash Tool 2014 instead.
Do other versions of the G Pad work with the 8.0? Such as the 8.3 (v500 I think) for the KDZ image? There is a KDZ image for every other variation of the G Pad except for the v496, that I can find at least.
Also, does anyone know if TWRP will fix permission issues? Realistically, I just keep to reset the SUID's back to what they were originally. I just remember older recovery's having the option to fix permissions.
bloodfilledwatr said:
Do other versions of the G Pad work with the 8.0? Such as the 8.3 (v500 I think) for the KDZ image? There is a KDZ image for every other variation of the G Pad except for the v496, that I can find at least.
Click to expand...
Click to collapse
Not that I know of. I don't know if either LG Flash Tool 2014 or LGUp will even attempt to flash a KDZ meant for a different device than what you have connected, but if they did there's no guarantee it wouldn't brick your device and it likely would. The G Pad 8.3 has three variants, all the KDZs for them are incompatible with each other as far as I know: VK810, V500 and V510.
I have the 22a kdz, but the software I've downloaded to flash it onto the vk815 isn't working. Would someone please point me to valid files for downloading? I tried the apps to SD hack, and that makes my software modified. That didn't seem to work, and maybe why the 23a update still gives me unexpected SD ejection. I want a clean pure install. I'm not concerned about root.
Hi.
First, are you using the original USB cable with a USB 2.0 port that comes directly off your Windows PC's motherboard - not a USB 3.x port and not through a USB hub?
Installed the latest VK815 drivers from LG's website? Reboot the PC after while the device is disconnected from it.
Once you put the device in Download mode, check in Windows' Device Manager in the Port section to see if the device is listed "LGE...". Until it is, any attempts to flash a KDZ or TOT will be futile. It can take up to 5-10 minutes to load the driver you installed, and USB works by loading the driver separately for each different USB port you plug the same device into.
If you Google:
Code:
XDA LG Flash Tool 2014
you'll find it. If that's exactly what you're using and it's not working, could you please be more specific about how it's not working? 99% of the time (maybe only 95%) ignore any error dialog that pops up from it, move the error dialogs out of your way if necessary but don't click on any buttons in them, and within 5-10 minutes you'll find your device is flashed. This is true in general for all LG devices.
You should also be able to use the official Verizon-LG software on your tablet, if absolutely needed. When you first plug it into your Windows PC it comes up as "Installer" before it switches to MTP or another mode. Install that from Windows and the official tool will download and install the latest KDZ that's released (23A? - I have the VK810 so not sure what latest VK815 releases are). The difference between the official tool and LG Flash Tool 2014 is the official tool downloads the newest KDZ every time you choose to upgrade/update with it, and can't make use a pre-downloaded KDZ, and then deletes the KDZ when it's done flashing although if you're fast enough you can copy it elsewhere while it's flashing so you have it handy. It's the easiest way to get the latest KDZ for any LG device on Verizon these days, when it's not available any other way yet.
When you flash with LG Flash Tool 2014, use the CSE option which will wipe everything including user apps, user data and internal storage.
Lastly, if you return to stock and the problem persists and it's still under warranty, LG has excellent warranty service.
Thanks! It all seems like I was doing everything right. I'll give it another go as you've directed, to be sure. It was my understanding that perhaps when it updated to Marshmallow, the flash function was deactivated? Maybe that was just for installing images and not flashing firmware.
Yep, fails to connect. Trying to install the LG UP CY dll for vk815, getting an Error 2356. Bummer.
Crap, just lost everything I just typed.
You verified the tablet shows up in Device Manager while it's in Download mode?
You were trying both LG Flash Tool 2014 and LGUp or just LGUp? LGUp doesn't work with all devices (not the VS985 Verizon G3, and I don't think my VK810 Verizon G Pad 8.3).
On the VS985, when 35B Lollipop 5.1.1 came out, we could no longer flash older than the 35B KDZ. We could only downgrade from 100% stock on 35B and higher by using our 10B TOT along with the .DLL that's extracted from the 35B KDZ. I don't know if you can get your hands on a TOT for the VK815, they're rarer than KDZs and usually have to be leaked by someone on the inside, I think.
Also, sometimes a different Windows PC makes the difference.
Yep, turns up OK. It starts to connect in LG UP, but fails after a few seconds. The specific driver also fails to completely install.
Einsteindks said:
Yep, turns up OK. It starts to connect in LG UP, but fails after a few seconds. The specific driver also fails to completely install.
Click to expand...
Click to collapse
I don't know if LGUp works with the VK815. It doesn't work with the VS985. Good you Google for and try the LG Flash Tool 2014 I had mentioned?
There's a driver packet for the vk815, but it wasn't compiled right, or something, and fails to install. I may have a shot if a clean version can be found. Flash tool 2014 is reported to not work after Marshmallow is installed. That is true.
Einsteindks said:
There's a driver packet for the vk815, but it wasn't compiled right, or something, and fails to install. I may have a shot if a clean version can be found. Flash tool 2014 is reported to not work after Marshmallow is installed. That is true.
Click to expand...
Click to collapse
If LG Flash Tool 2014 can't flash your older KDZ while you're on Marshmallow, then LGUp won't be able to, either, as far as I know. LGUp doesn't get around stock bootloader and laf (Download mode) limitations.
Is there a TOT for the VK815? That and using the newer .DLL that comes inside the latest stock KDZ is the only way to downgrade from Lollipop 5.1.1 and Marshmallow on the VS985.
roirraW "edor" ehT said:
If LG Flash Tool 2014 can't flash your older KDZ while you're on Marshmallow, then LGUp won't be able to, either, as far as I know. LGUp doesn't get around stock bootloader and laf (Download mode) limitations.
Is there a TOT for the VK815? That and using the newer .DLL that comes inside the latest stock KDZ is the only way to downgrade from Lollipop 5.1.1 and Marshmallow on the VS985.
Click to expand...
Click to collapse
I suspect the new dll pack is for LG UP, because Mm update 'closed out' the old flashers.
Shoot! I just realized you may be thinking I want to downgrade. Nope, only wanna clean install of Mm, as mine currently reads as 'modified'.
The other day, I was messing around and got into recovery where there is an option for debug mode! Gonna have to try that to see if anyone will see the tablet. Not sure, but it may be feasible to push the system image via ADB?
Update: debugging mode yielded no change. Guess I'll just have to wait until either Verizon or LG gets their thumb out their ass and develop a better driver file for the LG G Pad X 8.3.
im looking for the same thing, trying to get my vk815 back to stock, its currently rooted on lollipop. the only kdz files i could find are MM but flash tool wont flash them, if i could find an older lollipop kdz i think it would work.
I recently found/installed new drivers/programs, but haven't bothered with them. My tablet still has the mysterious sd ejection bug, despite the latest update.
Sent from my XT1254 using Tapatalk
so did you figure out how to flash a kdz file with the vk815 tablet? if so which flash tool and files were you using, if possible could you please share a link? I have both LGFlashTool2014 as well as LGUP, but the only kdz files I have are all marshmallow, and I could not find a dll file to use LGUP for the vk815.
I played stupid and sent my tablet back to LG to have them reflash official firmware. I haven't messed with it since.
Sent from my XT1254 using Tapatalk
hmm well, i sure hope I dont have to send it back to LG, the root method I used was posted by player911, he also posted a method to unroot, but the KDZ files are no longer on the internet.