Great guide and I'm following, but my GPad is a standard V500 from Amazon, so I get:
DEVICE CHECK FAILED!!
MODEL: LG-V500 FWBUILD: KOT49I.V50020d FWVER: 4.4.2
Script will now exit to avoid damage to your device!!!
I've completed up to this step. Any advice? I'd really like Lollipop on this...