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I have Xperia Z2 and it has Android version 4.4.4 and DUALSHOCK 3 controller doesen’t work wireless any help..? As the proceedure as state in the manual did not work.
Can we get this fixed?
Hi Guys. Try turning off WiFi and then connecting your controller. Unfortunately Xperia Z2 has a massive issue with Bluetooth interfering with WiFi and very often they won't work well together. It worked for me but basically makes Remote Play useless feature 
Let me know if it helped.
I don't know if anybody will find this post helpful or not; turns out if you're keeping your sony tablets / phones updated, sony removed support for the ps3 controller in favor of the ps4 controller (on my sony tablet, anyway).