DYU 4+

So I’m not sure how to rate this so I marked 3 stars. Last April I purchased the D1 model and the app connects quickly. I recently purchased two of the D2F model and the app never sees them. I have read online that others are having the same issue. I find it hard to believe that so many bikes could have a Bluetooth hardware problem when the ebikes quality in the first model was its main selling point.

Could this year old app be part of the issue...? Myself and others believe it just might be.

Perhaps DYU could look into this...?

The speed on this e-bike through this app used to be “up to 30km/h.” What happened with this last update????
Now the speed through this app will only let you choose up to 25km/h. Why would you do this???? I had quite a few people sold on buying a this e-bike because of the convenience and most importantly the speed. If this isn’t fixed soon I will have to go back and tell these people to look elsewhere. Not a very happy person!!!! Please fix this very soon!!!!
(Update version 1.4)

I cant adjust speed with it.
Startup settings doesn't work.
Cant lock it.
App crash when you go on Basic Information

Please update it !!!!!!

Thanks