[LG V20 Questions & Answers] triarii7:
Hi,

I have a US996 and I am trying to use this guide.

Ok i can't post urls so it is the: highonandroid how-to-root-lg-v20-attsprintverizonkorean

I have all the files. The driver is working (windows) and I can complete all the step to get the phone into fastboot mode and step3 does reset the phone. The trouble is step3 is reorting an error when attempting to write twrp "FAILED (remote: device is locked. Cannot flash images)"

here is a log from step three:

C:\Users\user\Downloads\fastboot>fastboot flash boot boot1.img

C:\Users\user\Downloads\fastboot>fastboot flash recovery twrp-3.2.3-0-us996.img

C:\Users\user\Downloads\fastboot>fastboot flash boot boot1.img

C:\Users\user\Downloads\fastboot>fastboot flash recovery twrp-3.2.3-0-us996.img

C:\Users\user\Downloads\fastboot>fastboot flash boot boot1.img

C:\Users\user\Downloads\fastboot>fastboot flash recovery twrp-3.2.3-0-us996.img

C:\Users\user\Downloads\fastboot>fastboot flash boot boot1.img

C:\Users\user\Downloads\fastboot>fastboot flash recovery twrp-3.2.3-0-us996.img

C:\Users\user\Downloads\fastboot>fastboot flash boot boot1.img

C:\Users\user\Downloads\fastboot>fastboot reboot

here is an associated error log

target reported max download size of 536870912 bytes

sending 'boot' (40960 KB)...

OKAY [ 1.061s]

writing 'boot'...

FAILED (remote: device is locked. Cannot flash images)

finished. total time: 1.081s

target reported max download size of 536870912 bytes

sending 'recovery' (28928 KB)...

OKAY [ 0.757s]

writing 'recovery'...

FAILED (remote: device is locked. Cannot flash images)

finished. total time: 0.770s

target reported max download size of 536870912 bytes

sending 'boot' (40960 KB)...

OKAY [ 1.055s]

writing 'boot'...

FAILED (remote: device is locked. Cannot flash images)

finished. total time: 1.071s

target reported max download size of 536870912 bytes

sending 'recovery' (28928 KB)...

OKAY [ 0.753s]

writing 'recovery'...

FAILED (remote: device is locked. Cannot flash images)

finished. total time: 0.770s

target reported max download size of 536870912 bytes

sending 'boot' (40960 KB)...

OKAY [ 1.062s]

writing 'boot'...

FAILED (remote: device is locked. Cannot flash images)

finished. total time: 1.080s

target reported max download size of 536870912 bytes

sending 'recovery' (28928 KB)...

OKAY [ 0.760s]

writing 'recovery'...

FAILED (remote: device is locked. Cannot flash images)

finished. total time: 0.780s

target reported max download size of 536870912 bytes

sending 'boot' (40960 KB)...

OKAY [ 1.052s]

writing 'boot'...

FAILED (remote: device is locked. Cannot flash images)

finished. total time: 1.070s

target reported max download size of 536870912 bytes

sending 'recovery' (28928 KB)...

OKAY [ 0.763s]

writing 'recovery'...

FAILED (remote: device is locked. Cannot flash images)

finished. total time: 0.780s

target reported max download size of 536870912 bytes

sending 'boot' (40960 KB)...

OKAY [ 1.062s]

writing 'boot'...

FAILED (remote: device is locked. Cannot flash images)

finished. total time: 1.080s

rebooting...

finished. total time: 0.020s

this seems like the boot loader is locked some how. any ideas for this?