Sudden low Bluetooth volume

[Edgie70]

Hi team , been driving around for a few days listening to Spotify in the car via Bluetooth then all of a sudden tonight during a song the volume went really low , about 50% lower !! Volume ok on car stereo, checked phone and the Bluetooth volume was on 50% , it was on 140 on the slider ( only goes to 150 ) when I was driving around!! Wondering why a sudden loss of volume? 

[BandOfBrothers]

Have you tried a soft reboot by turning the phone Off and On ,andresetting everything including deleting and resetting up the pairing @Edgie70 

[Edgie70]

Hiya , tbh it was late when I got home and I've not done anything yet and it's only happened once , be a pain if I have to reset BT , I'll restart my phone , that's easier lol might change the AVRCP to 1.6 instead and try that as well