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Communication error 14 0 Recommended Answers 5 Replies 1 Upvote
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I can't connect anymore my Huawei p10 to my c3. I can only read "communication error 14" on my phone. Both date and time are corrected and all the updates done. The problem is only on my phone. 
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Same error with a Huawei Mate10 pro on Android / EMUI 9.1 since the last Update of Android Auto.
The new Android Auto 5.0.500224 on a Huawei Mate10 pro (EMUI 9.1) has stopped working on my Volvo XC40 MY19. Connecting to my car and starting AA my phone gives a red Android Auto error screen with a communication error 14. The Volvo Sensus System states an invalid certificate. Uninstalling and reinstalling AA does not help nor does clearing cache and data of AA or Google Play Services. Any help appreciated. Could not contact the developers directly. 
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Wolf
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What is really annoying is that you cannot reach out to anybody from Google who will help you with that. These big software players just let you feel you are one in millions and they do not care about you at all.
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My car's head unit has been reset by the dealer today. No success.
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New version 5.1.500644 of AA did not solve the problem.
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What fixed it for me after hours of trying:
1) Uninstall Android Auto
2) Install old version 4.6.593 from Apkmirror
3) go to phone settings/apps and delete all data
     from AA, Google Play, Google Play Services
4) go into the play store and look for Android Auto
5) you should see the option uninstall and update
6) click update
After that procedure I am having AA back in my car. Current version of AA is 5.1.000644. 
It is still unbelievable that you could not get any help from Google. It was them who broke the app. Thanks to all the people  posting ideas for solutions here. It was their ideas and a lucky combination that solved the problem for me. Hope it will be helpful to others.
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