[TuToriaL/FiX] Fastboot_Mode_Started and LG Security Error Endless Reboot topic

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Hello Everyone!

Recently i had bought and LG G3 that had been preloaded with lollipop. So i decided to root it and install customer recovery thank to the new BUMP'D method that had just been released. Little did i know that google was going to be the death of me. I had accidentally used an entirely different installer (one for the D855) along with deleting my recovery, boot, aboot, laf, etc. in order to try and fix the problem. I ended up with endless errors including the fastboot_mode_started error as well as the endless bootloop with error message: LG Security error. Not finding a well organized post for people to see i have taken it upon myself to induce black magic in order to bring your devices back from the dead.

All of this is thanks to @autoprimes thread in which some people like me try to cut corners and brick our phones.

Follow his thread carefully: http://forum.xda-developers.com/show...postcount=1720

What you want to do is obtain the appropriate images from @autoprime.

The ones that i needed were the aboot, laf, recovery, as well as the patched boot from method 1.

****IF you are stuck in continuous bootloop. you must remove battery then hold down and power at the same time, insert battery, when lg screen appears release and quickly press again. this will take time, it took me 5-10 times to get it running. this will break the boot cycle and may boot you into recovery if you havent already erased it (in my case). if you have you will boot into fastboot_mode_started. You must then proceed to place all of the files (aboot,laf,modded boot, recovery) in the same folder as adb and fastboot program folder.. use the cmd prompt and replace the original cmd lines with fastboot code, for instance:

To flash aboot i would type this:

adb shell
su
fastboot erase aboot
fastboot flash aboot aboot.img <----------This will be what ever the name of the file is
fastboot erase recovery
fastboot flash recovery recovery.img<----------This will be what ever the name of the file is
fastboot erase laf
fastboot flash laf laf.img<----------This will be what ever the name of the file is
fastboot erase boot
fastboot flash modded-boot.img<----------This will be what ever the name of the file is
fastboot reboot recovery

from there you can restart from recovery and boot system up.


Remember download appropriate drivers for the ATT LG G3 in order for this all to work. also google some info on quickly getting adb running as you will need it.

After this i was up and running with everything functioning as it should. TWRP and root were also functioning :).

xda-developers


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