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Android Auto Randomly Disconmecting 2 Recommended Answers 55 Replies 91 Upvotes
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I know a lot of people have asked for help but they are all closed
Phone: Galaxy S20 Ultra 5G
Car: 2017 Ford F150 4dr XLT
Sync 3 on version 3.0

Complaint: AA connects immediately and will work fine. Then it will disconnect within 5 seconds to maybe 5 minutes.  It does it when moving or sitting still.  

Here is a list of items I have already done:

-8 different types of cables; switch cable, aukey, anker, belkin, oem and a few others.
-disabled ALL battery optimization and just AA by itself
-ensured adaptive battery is off
-restarted phone a lot
-updated sync 3 from 2.2 to 3.0
-deleted every app I had to see if there was conflicts
-gave permission to every thing that android auto works with
-reset my phone to factory
-developer settings; enabled debugging, set default usb to android auto
-had multiple shops clean the usb in case that was it

I'm really all out of ideas

This phone works perfectly fine in my mustang which has a cheap usb cable(yes I've tried that cable in the truck)

It's a 2016 Mustang Gt if that makes any difference
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I would like to add the s20 5g will disconnect from A.A. then on the phone screen it will do the charging loop everytime it disconnects. As i should have added in my original post im in a 2020 chevy colorado
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I have a moto z4 that disconnects randomly as well. If I am actively using AA and on a hands free call it will generally stay connected during the call but usually disconnects shortly after call is over. All other times it randomly disconnects sometimes within minutes of launching and other times after a significant period of operating fine. Usually when it does disconnect it will try to relaunch a few times before giving up. Interestingly I also have an iPhone that uses CarPlay in the same usb port seamlessly. And the moto z2 (and older version of AA) I had prior to the z4 did have the problem but it was very very rare.
I believe the problem is that traffic on the usb port causes momentary interruptions of AA communications and it immediately disconnects. Which might explain why it stays connected during a call, as other traffic on the port is limited during the call. Regardless AA should be able to "ride through" such usb port traffic and just go offline momentarily during the communication interruption as Google Maps does when Carrier data connection is lost.
This is another thing you might check also. My Carrier is awful and typically I lose data connection often when driving that might be another cause of AA disconnects.
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Hi

It would be nice if you can share the email with instructions here so other users with similar issues can share their log too. Hopefully more information means the problem can be sorted more quickly. 

Unless @pawan you can share the instructions here in forum so everyone can share the logs. 

Thanks
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When is this going to be fixed? It is dangerous when following GPS on the freeway and AA randomly disconnects. Did not read all posts above but similar to others I have tried many different cables, resets, re-installs but this still happens on several different phones: S20, pixel 2, pixel 3, older Samsung Galaxy and the problem persists. Google, we need a solution!
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