Why does my Bluetooth 4.0 phone only work with 2.0 devices?

[AC Question]

Why bluetooth 4.0 phone will only work with 2.0 devices.

I own a BLU Life 8 and it's running android 4.4.2, the Bluetooth will work with my $10 Bluetooth dongle that is v2.0 and it won't work with any other v4.0 Bluetooth device. Why is that and what can I do to fix it? Is it a software or hardware issue? Thanks!

 

[jeffmd]

Re: Why bluetooth 4.0 phone will only work with 2.0 devices.

A quick search shows the bluetooth is broken on the phone, there is no fix.