I bought my GQ-4X a few years back and I just checked out the IC compatibility list and found a notation about v4 programmers. How exactly would I tell if mine is a v3 and what is the difference between it and the v4?
Given the compatibility list shows only v4 on everything would I need to use The Wayback Machine to verify a particular adapter and IC will function on my programmer?
The newer version GQ-4x4 released on Oct-1-2015. There will be two beep sounds from programmer when it is power on. So, your version must be old version.
The new version 100% accepts the adapters worked on old version GQ-4X.
But it improves flexibility. Some special adapters were eliminated.Instead, a standard adapter used. Such as 08ODOWQ chip