Possible fix for bluetooth disconnection problems

[sfortis]

i've encounter frequent disconnections with Z5 and my card BT system (ford). 

So i've captured a btsnoop file until first disconnection. The problem is that Z5 is trying to send the VCARD of the phone owner ( settings --> users --> you) with encoded photo:

 [WI›ï§ƒSË!telecom/pb.vcfBx-bt/phonebookLÿÿ…'â9Ágš? ÿ@™ïôôËHìBEGIN:VCARD
VERSION:2.1
N:;Sakis;;;
FN:Sakis
TEL;CELL:693-*********
PHOTO;ENCODING=BASE64;JPEG:/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAMCAgMCAgMDAwM
EAwMEBQgFBQQEBQoHBwYIDAoMDAsKCwsNDhIQDQ4RDgsLEBYQERMUFRUVDA8XGBYUGBIUFRT/
2wBDAQMEBAUEBQýâ9ÁgÁ|â9ÁgÎ I›ÿ;â9ÁgÑZ ÿ@™ïôkFBQkUDQsNFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUF
BQUFBQUFBQUFBQUFBT/wAARCABgAGADASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAA
ECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaE
II0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSoýâ9Ágöâ9ÁhqË I›ÿ;â9Ái·K
.
.
.
.

The picture size is very big for the receiver (in my case ,ford BT car audio) and is crashing the BT stack.

workarounds:

1. remove the picture
2. crop the picture and reduce the size.

i've made a 5minute call today with no disconnections at all. 

I dont know if this is a sony software bug of ford BT bug, but it seems that many devices are suffering BT disconnections, so

guys please check this.

[funnybunnyhaha]

@Freeegle

Mine is connecting OK, but just disconnecting/reconnecing much more often (to the car).

[sfortis]

After removing the owner photo ,my bt is working just fine with all my devices!

- mw600 sony bt
- Logitech x100 bt speaker
- iwave bt a2dp receiver
- Ford car audio

Very happy so far with Z5!

[herasymcuk]

from where?

[sfortis]

---

@herasymcuk wrote:

from where?

---

Check the first post on this thread

[herasymcuk]

it's seems to work for me too!!!

[sfortis]

Unfortunatelly, the above "workaround" is not working anymore with android 6.0.

The Z5 bluetooth with my ford car audio is disconnecting every 1-2 minutes of operation. Bluetooth is not only fixed but is even worse with 6.0 update as now audio is constantly stuttering on every audio A2DP device...

very dissapointed and thinking of my flawless Nexus 5. I was very happy with TabletZ , Tablet Z3 compact so far, but with my first ever sony phone, Xperia Z5 had an unplesant surprise...