Hey guys,
Just want to report that I have luck flashing a k450 with US610 firmware.
Please follow the steps at your own risk. I haven't tested if everything still work correctly.
Steps:
1) Download US610 kdz file (just do a quick google search, you should find it in the top results)
2) Extract the kdz with this tool:
https://forum.xda-developers.com/showthread.php?t=2600575
You should get a dz and dll file
3) Use lg flash tool V1.8.1.1023 to flash using the dz file and dll file extracted in step 2.
After the flashing is done, you would boot into a "minios" and
a) you should see a message "Factory reset status 2".
b) Wait a while until the message updates to "Factory reset status 3"
c) power off using pwr+vol- button.
d) power back on it should boot into android. It takes around 5 minutes for first boot.
Now since it wasn't even checking for k450 model vs us610 model mismatch, I suppose one might be able to obtain root by repacking the dz file with appropriate boot/system/recovery image.
While there's no known way to unlock the bootloader for the snaprdragon variants (K450, US610), the bootloader may not be locked to begin with. Therefore If we can repack dz file and still be able to flash a modified dz file (it should be applicable to all models?) I think we would have a good starting point for custom rom.
Questions that need answered:
1) Does download mode accept a modified dz file? i.e. prehaps the individual partition image is signed with a private key by LG and validated using a public key from the device?
2) Does the bootloader allow booting unsigned image?
Please follow the steps at your own risk. I haven't tested if everything still work correctly.
Just want to report that I have luck flashing a k450 with US610 firmware.
Please follow the steps at your own risk. I haven't tested if everything still work correctly.
Steps:
1) Download US610 kdz file (just do a quick google search, you should find it in the top results)
2) Extract the kdz with this tool:
https://forum.xda-developers.com/showthread.php?t=2600575
You should get a dz and dll file
3) Use lg flash tool V1.8.1.1023 to flash using the dz file and dll file extracted in step 2.
After the flashing is done, you would boot into a "minios" and
a) you should see a message "Factory reset status 2".
b) Wait a while until the message updates to "Factory reset status 3"
c) power off using pwr+vol- button.
d) power back on it should boot into android. It takes around 5 minutes for first boot.
Now since it wasn't even checking for k450 model vs us610 model mismatch, I suppose one might be able to obtain root by repacking the dz file with appropriate boot/system/recovery image.
While there's no known way to unlock the bootloader for the snaprdragon variants (K450, US610), the bootloader may not be locked to begin with. Therefore If we can repack dz file and still be able to flash a modified dz file (it should be applicable to all models?) I think we would have a good starting point for custom rom.
Questions that need answered:
1) Does download mode accept a modified dz file? i.e. prehaps the individual partition image is signed with a private key by LG and validated using a public key from the device?
2) Does the bootloader allow booting unsigned image?
Please follow the steps at your own risk. I haven't tested if everything still work correctly.
Last edited:
