Bluetooth signal strength bug with my stereo's car

[Pollocedrone]

Hi, i write from italy and i have an annoying bug with the stereo of my car (ford fiesta) and my xiaomi mi a1.

from 2-3 months when i take my car and power on my radio the bluetooth appear works fine, the phone establishes the bluetooth connection and i see on the radio the real and correct signal strength; but after few seconds the signal strength disappears and if i try to start call with the command buttons on the radio i can't because the radio say me that i don't have signal! but if i take the phone i see that i have a good signal, and if i try to start the call with the phone works fine, i hear the voice and i can speak without problems with bluetooth system of my radio but anyway appears no signal on the display of the radio.

it's like if the phone after few seconds forgets to broadcast the correct signal strength.

someone have the same problem? how can i solve it? i tried al lot of solutions, but without good results

thank you

 

[jango93]

Hi I'm facing the same issue but on a BMW car...
I think with August security patch was the last time signal strength on Bluetooth did work properly.
Now I have to reconnect Bluetooth to get it to work for a few minutes or use the phone to start a call.
I am also looking for a solution but nothing so far :/

 

[Pollocedrone]

for me the problem started when i upgrade os from 7 to 8 (i think).

the problem is very "funny" because my wife has the same phone, same os, same patches (i bought both phones in the same moment and from the same shop) but her phone works great with the car without problem! damn!

 

[Pollocedrone]

hi, i update the post because i circumscribed the problem: if i take the car, power on the radio and power on the bluetooth of the phone, the phone connect correctly to the radio, and show me the real and correct signal strength (for example 3 of maximum of 6). but as soon as the signal downgrade or upgrade (from 3 to 2, or from 3 to 4) the signal strength on the radio disappears and reset all (zero) and i'm not able to start call with the command of the radio, i only can start call directly with the phone


i see bluetooth log, when phone connect bt to radio the phone send this info:

+CIND: 0,0,1,3,0,4,0

legend +CIND: ("call",(0,1)),("callsetup",(0-3)),("service",(0,1)),("signal",(0-5)),("roam",(0,1)),("battchg",(0-5)),("callheld",(0-2))

when the signal strength on the radio disappears and reset all (zero) the phone send this info:

+CIEV: 3,0
+CIEV: 4,0

3 = service, 0 = no service (previously was 1)
4 = signal, 0 = no signal (previously was 3)

but the phone in realty upgrade the signal strength from 3 to 4!!!!!

 

[Pollocedrone]

It's really fun and strange ... but I solved the problem: I put the SIM in slot 2 of the phone ... and now it does not make any more problems, it works perfectly! but I can not use micrsd now

 

[abquincy]

The same happens to me. I have a Renault Kadjar with RLink 2

Any Solution?

Thanks

 

[Pollocedrone]

Someone says that with the november's update patch the problem disappears, not for me. i solved the problem with this method: put the sim on the second slot of the phone

 

[abquincy]

Someone says that with the november's update patch the problem disappears, not for me. i solved the problem with this method: put the sim on the second slot of the phone

I've installed the November update but the problem still persists.

BYE

 

[Pollocedrone]

I solved the problem with this method: put the sim on the second slot of the phone

 

[Pollocedrone]

solved definitely with android 9 pie update!