i'm way past that in Phoenix Wright 1, so it would work logically on G6 Lite.
i would suggest using another trim tool (if ur trimming),
getting to latest version of BOTH pc software and G6's firmware (latest is 4.8D and u can check which version u r when u fire up ur pc program, its on title bar)
if not, try not using soft reset mode on its rom.
if not solved yet, change the rom, maybe u got a bad dump, get another one.
its not bad to clean contacts too.
see if these solves.