Css and Blank Page Problem on Mobile Devices

[eluser]Tim Brownlaw[/eluser]
Unfortunately I've not personally come across this issue before.
So All I can really suggest is to see what happens when you go back to basics.

By that I mean if you just have a simple plain ole HTML page, how does that respond on the 3G/4G?

Then work your way back by re-adding the CSS and JS files. By doing that you are simply reducing the amount of Data being sent.
So it's kind of testing the bandwidth/ Data issue and adding the "files" back in starts creeping it back up.

It might also be an issue with your Carrier.

How do other websites fair when you are on 3G / 4G on the device you are using?
It might be some strange caching issue...
Is the site blocked on the 3G/4G network?

Have you tested this on other Devices on different Carriers?
Have others been able to test it out on their own devices and what do they see?

That's about all I can offer you!