[LG G Pad 7 Questions & Answers] mistaweeks:
DIY time

ok i just read this entire thread.....

i used king root 4.6.5 to quickly root this device. my friend brought it over and had to leave suddenly so i didnt get to replace king user with super su like i usually do. the next day he came over and said something was wrong with the tablet and pretty much all google services framework, playstore, gmail. etc...are no longer present on the device....i traded one of my unlocked/rooted phones for the tablet and now it belongs to me. so, of course i am immediately in search of recovery img ...nothin...custom rom is obviously out of the question...so now, like u guys, i am in search of a way to flash stock rom....ill get back to that though

real quick i wanna mention the supersu me app everyone uses to purge kingroot and install supersu....DO NOT USE IT. i encountered a similar problem with alcatel where everything was fine until i used the supersu me ap ....bricked. so after that i found a different method that works very well and is probably the reason my device is not bricked. here is the link--http://www.w0lfdroid.com/2015/05/How-to-Remove-Replace-KingUser-KingRoot-with-SuperSU.html

download the simple zip file and keep it on sd card...when u root a device and need to purge kingroot simply extract the contents of the zip to the root of internal storage and run terminal command sh /sdcard/mrw/root.sh it runs the script and next thing u know your updating supersu binaries ....people need to stop using supersu me app period!

--so back to the restoring stock firmware issue. someone posted about doing a titanium backup of all the apps on a fully functional gpad and sharing it with us...that would be cool! but still we need a way to flash the original firmware and it looks like no devs are trying to do it. at the beginning of this thread there is a link to the source code from lg. i downloaded one of the files and extracted the folder. in that folder was a readme file that looks like it is explaining how to use the contents in the folder to build the android rom....this is what it says

1. Android build

- Download original android source code (android_5.0.1) from http://source.android.com

- Untar opensource packages of LGLK430_L_Android.tar.gz into downloaded android source directory

a) tar -xvzf LGLK430_L_Android.tar.gz

- And, merge the source into the android source code

- Run following scripts to build android

a) source build/envsetup.sh

b) lunch

c) make

- When you compile the android source code, you have to add google original prebuilt source(toolchain) into the android directory.

- After build, you can find output at out/target/product/generic

2. Kernel Build

- Uncompress using following command at the android directory

tar xvzf LGLK430_L_kernel.tar.gz

- When you compile the kernel source code, you have to add google original prebuilt source(toolchain) into the android directory.

- Run following scripts to build kernel

- cd kernel

- export ARCH=arm

- export TARGET_PRODUCT=e7iilte_spr_us

- export CROSS_COMPILE=../prebuilts/gcc/linux-x86/arm/arm-eabi-4.8/bin/arm-eabi-

- make e7iilte_spr_us_defconfig

- make zImage

* "-j4" : The number, 4, is the number of multiple jobs to be invoked simultaneously.

* lz4demo : More information can be found at "https://code.google.com/p/lz4/"

- After build, you can find the build image(zImage) at arch/arm/boot

3. how to build chromium38_lge (vendor\lge\external\chromium38_lge\src),

please refer to README.txt at the folder mentioned above.

i lack the experience of pulling off a procedure like this, but i have the patience and intelligence to learn how to do it. just like everything else....i taught myself with google, lol. seriously though im sure there are some devs on xda that know exactly how to use that readme file and the source code files to make a flashable kdz file we could use to fix our devices....im going to try and learn how to do it myself, but hopefully someone more experienced can save us all some time

also, has anyone even tried to flash the recovery file from gpads from the carriers that do have twrp recovery and cyanogenmod? i know with other devices u can flash virgin mobile rom onto a device that is boost mobile, and it works fine because is it still the same device....i dont know why there is no development on the sprint version of this tablet , but we gotta figure this out