Does bluetooth tethering works?
 

I own a sonyericsson cellphone (no smartphone) with bluetooth.
Some time ago, I owned an archos32 (gen8 with froyo): the bluetooth tethering with my cellphone works flawless.

Does bluetooth tethering works on z-series?

It will depend on if the bluetooth protocols on the walkman support data transfer or not, most of the time if there is bluetooth on an mp3 player or cheap phone it will only support audio transfer.

For BT files transfers to/from the Z, I use: https://play.google.com/store/apps/d..._result#?t=W10.

As far as tethering to your mobile for an internet connection, the only one I know about is: https://play.google.com/store/apps/d..._result#?t=W10 which requires an Android Phone.