#StackBounty: Unable to install ROM with adb sideload or other methods on LG G3 d855

Bounty: 100

I have a LG G3 (d855) phone on which I had Cyanogenmod 14 and which I wanted to upgrade to LineageOS.

I booted to recovery, wiped everything and tried using adb sideload to load the image, but it failed at 47% with cannot verify whole file signature and cannot load volume /misc errors.

I verified the md5sum of the image, tried the other images available and also an AOKP image, and the symptoms are always the same.

I don’t seem to have access to another way of loading an image on the phone, I was not able to enter download mode (I only get either a black screen or a battery picture) and the recovery mode seem to accept adb connections so I cannot push an image on it (I get a adb: error: connect failed: device unauthorized. This adb server's $ADB_VENDOR_KEYS is not set error). And of course having wiped the system, I cannot do anything from here.

edit : I’ve been able to start the phone in download mode by using a different USB cable. However I cannot find a tool on Linux to upload an image to it. Some sites say that heimdall should support it but it seems they are misleading as heimdall itsel only claims so support samsung devices.

Get this bounty!!!

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