Some customer feel difficult to use Uni1 remote normally after they build 4WD by 2Ubox v1 . The main reason is the ubox internal receiver are on, and cause remote a mess to operate.
So Ubox v2 has upgrade a new feature: the internal receiver can be turn on /off by power button.
Before your building of 4WD, what you need to do is to turn off one of the ubox's internal receiver, then you will feel so easy to use a remote control two Ubox.
How to turn it on and off? and how to check if it's on and off? Please watch this video,you will get clear answer.