octopus82 Sending firehose loader... Failed to send payload at 0x00000000:0040 (packed rejected)
Hello,
LG G5 use UFS as its flash storage. If you can find valid firehose, you can easily unbrick via UFi Android ToolBox in emergency mode.
From your log, your firehose is not accepted by SoC, because its not valid programmer for the host.
Unfortunately, firehose for LG device are hard to find.