Bluetooth paired devices can't recognize my phone after reboot (Jiayu S3)

[Usuario Estable]

When I pair my JS3 (Advanced) to some device, that 'pairing' is lost when I reboot my phone.

I must forget my phone on the other device, then re-pair with it.

Happened also on MadOS Nougat.

[Bubbamester]

Maybe the Bluetooth mac address changes on every restart. That's why you must repair again and again. The car think it is a new device. Check it. Mine did it too.

[Usuario Estable]

And how can I check and fix that?

Thanks for your response :-)

[Bubbamester]

Go to settings/system/about phone/status and write down or make a screenshot about your Bluetooth Mac address. Do a phone restart and look at again the Mac address. If it is different than something wrong with your nvram content. In my case helped reflash an older nandroid backup.

[Usuario Estable]

Thanks Bubba. That is the point. My BT MAC changes on every reboot. I don't have any nandroid backup , so I will search what to do about it.

Thanks a lot.

[Bubbamester]

Your welcome! Try to go back to 5.1 Mad ROM and check the Mac address. If it isn't good then go back to the original Android 4.4 ROM with a PC and sp flashtool. Good luck! Be careful!