!! d800 ONLY !!
Make sure you flash the right model!
With the advent of BUMP, we can now use the KK bootloader. A lot of projects preserved the old JB bootloader, since that was needed due to loki. This is the easy way to update your JB bootloader to the new KK bootloader.
Inspired by @dorimanx who did this for the d802. I followed suit and made this for the d800.
What this is:
As it simply says, it upgrades (or downgrades) the bootloader. This includes several other small partitions, in addition to aboot and sbl1.
10d & 20c - Extracted from TOT file
20y & 30f - I started with 20d, then did FOTA to 20y and extracted the partitions. Then I did FOTA to 30f and again extracted the partitions.
What this is NOT:
This does not touch your boot, recovery, or modem/radio partitions. You must make sure those are compatible BEFORE flashing this.
WARNING: You can easily brick your phone if you mess this up! This is for d800 ONLY!!! Also, you must have BUMPed boot and recovery images already on your phone to use KK bootloader or you will get fastboot error (or it just won't boot). JB supports BUMP images and LOKI images. KK only supports BUMP.
Special LOLLIPOP WARNING: At this time, the Lollipop BL is not exploitable. Therefore, if you flash Stock LP BL, you will probably brick, or at a minimum, you will lose access to recovery.
To use a BUMPED lollipop ROM, you should install the Lollipop Bump bootstack on my site. It is all of the 30f Lollipop partitions, with a 20y aboot (so bump will work).
Did you read the warning above? If not, DO NOT DOWNLOAD.
Did you read it twice? If not, DO NOT DOWNLOAD.
Do you understand everything it says? If not, DO NOT DOWNLOAD.
Do you know how to recover if you mess your phone up? If not, DO NOT DOWNLOAD.
I do not want any posts saying "HALP I MESSED THIS UP."
Which bootloader am I currently on?
The only sure way to know is to flash one, or know which one you flashed last.
You can get an idea of your bl when you use the button combo to enter recovery (VolDwn+Pwr, release and repress when LG logo comes up, hold until menu comes up) the screen looks different. On JB the phone asks you to repeatedly press power for factory reset. On KK the phone has you use the volume rocker to pick different menu options.
Again, thanks to @dorimanx.
Shameless plug for donations:
Venmo Preferred (No Fee)
Zelle, send to [email protected]
Backup (Charges Fee)