A91164220440241

Service Bulletin Details

Public Details for: A91164220440241

This technical service bulletin explains how to troubleshoot a variety of issues with the audi smartphone interface.


- 2019 - 2018 - 2017 -

Technical Service Bulletin
91 Apple CarPlay or Android Auto complaints (blank MMI screen, no audio, does not connect, etc.)
91 16 42 2044024/1 May 6, 2016.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A4
2017 - 2019
All
Audi smartphone interface
Q7
2017 - 2019
All
Audi smartphone interface
Condition
The customer may experience any of the following static or sporadic issues with the Audi smartphone interface
(ASI) system:
• The MMI screen is blank after the phone is connected to the USB port.
• The MMI screen freezes when Apple CarPlay or Android Auto is used.
• Apple CarPlay or Android Auto does not automatically start when the phone is connected to the USB port.
• The MMI sporadically displays an “Unlock Phone” message to allow ASI to be used.
• The left thumbwheel button on the steering wheel cannot be used to start or end a phone call.
Technical Background
The Audi smartphone interface (ASI) was introduced to the MIB2 MMI system in model year 2017 Q7 and A4
vehicles. MIB2 MMI includes two different systems: the MIB2 High Scale without Audi connect and the MIB2 High
Navigation system with Audi connect. As with the older Audi music interface (AMI) system, the user experience
can vary (different features and functions) based on the customer’s device type and device firmware connected to
the USB ports in the vehicle.
Apple CarPlay (Figure 1) Minimum Requirements
Device: Lightning-capable iPhones, starting with the iPhone 5 and including all
new versions of the iPhone (iPads are not supported).
Device Firmware: CarPlay is built into Apple’s iOS, so having the latest update is
recommended because constant improvements in usability and stability are
introduced with updates to iOS. There are significant stability improvements with
the latest iOS firmware when compared to the early versions of iOS 8.X, which also
supported CarPlay.
Figure 1. Apple CarPlay icon.
© 2016 Audi of America, Inc.
Page 1 of 6
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Android Auto (Figure 2) Minimum Requirements
Device: Any Android Device with a USB connection and support for the official
Google Play Store. Amazon Fire and other Android phones using a proprietary
operating system that doesn’t natively come with Google Services are not
supported.
Device Firmware: Android 5.0 Lollipop or higher is required, along with the
Android Auto app. Android 4.0 KitKat and lower are not supported. Unlike CarPlay,
the official Android Auto app must be separately downloaded from the Google Play
store.
Phones that are rooted and have a “Custom ROM” installed are not officially
supported. Phones where the Android Auto app is “side-loaded” by means outside
of the Google Play store are not supported.
Figure 1. Android Auto icon.
Production Solution
Not applicable.
Service
Before proceeding, note that ASI (Audi smartphone interface) = Apple CarPlay or Android Auto.
Issue: The MMI screen goes blank after the phone is connected to the USB port, and ASI does not function
until the phone is disconnected from and reconnected to the USB port.
Cause: A known MMI software startup concern with iOS 9.X can cause this issue. If the customer’s phone is
connected before the car is started, the issue can occur. Typically, the process can be repeated if the phone is first
connected to the USB port, then the vehicle is started within 1-2 seconds after the phone is connected. The
condition can be sporadic.
Solution: Ask the customer to connect the phone after the car is started and the transmission is still in the park
position. Inform the customer a software solution is not available at this time, and sign the customer up for Pending
Service Solution (PSS) 2044130: PSS 91 MMI screen goes blank after iPhone is connected to USB port. After the
customer is signed up for the PSS, the dealer will be notified when the solution is available.
Issue: The MMI screen freezes when Apple CarPlay or Android Auto is used.
Cause: When the phone freezes or when a background app hangs, it can cause Android Auto to hang (particularly
if the app is supported in Android Auto).
Solution: Ask the customer to uninstall all non-essential apps and restart the phone. Repeat until the issue is
resolved.
© 2016 Audi of America, Inc.
Page 2 of 6
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Issue: Android Auto does not automatically start when the phone is connected to the USB port.
Cause: Some Android devices (including Samsung Galaxy/Note
devices) require the USB MTP mode to be manually enabled after the
device is connected to the USB port. This is a fault of the device
firmware.
Solution: Ask the customer to manually enable USB MTP mode after
connecting the device to the USB port of the vehicle.
• For most Android devices, this can be done from the notifications
window from the top swipe-down menu (Figure 3).
• Find the USB notification that indicates “Connected for Charging”.
• Select this notification to bring up the USB connection options.
• Select the mode that connects as “MTP – Media Transport
Protocol” (Figure 4).
Unfortunately, this process will need to done each time the phone is
connected to the vehicle or each time the vehicle is restarted with the
phone connected to the USB port. Ask the customer to report the
concern to the device manufacturer.
Figure 3. USB options in notification
window.
Figure 4. Media Device (MTP) Selection
© 2016 Audi of America, Inc.
Page 3 of 6
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Issue: Apple CarPlay does not automatically start when the phone is connected to the USB port.
Cause: Some versions of iOS have known software bugs that
can cause the phone to freeze. If CarPlay does not start, ask the
customer to check the phone by unlocking the phone to confirm
that the top of the screen is blue and shows the CarPlay icon.
Solution: If the phone is not in a valid state with CarPlay running,
ask the customer to force a restart by holding down the home
and sleep/power buttons simultaneously (Figure 5) for at least ten
seconds until the Apple Logo appears. This will close any
misbehaving apps that may prevent the phone from being
restarted using the normal shutdown method. The customer may
want to consider uninstalling all non-essential apps.
Figure 5. Force iOS reset.
Issue: The MMI sporadically displays an “Unlock Phone” message to allow ASI to be used.
Cause: When a new iPhone is first connected to the ASI, iOS
provides a popup notification window to ask the user to allow the
Audi MMI to use the iPhone while the screen is locked (Figure
6). It is easy to miss this notification window, especially if the
phone is already unlocked when it is connected. If the customer
does not allow CarPlay to access the phone while it is locked, the
warning message will appear in the MMI every time the phone is
connected (Figure 7). The customer may subsequently unlock
the iPhone using the Touch ID/fingerprint sensor every time
without knowing there is an option to remove this step.
Solution: Ask the customer to enable the Audi MMI to access
CarPlay with the phone screen locked. To change this setting on
the iPhone, go to Settings>>General>>CarPlay>>Audi MMI.
Select the “(i)” next to “Audi MMI”, then select “Allow CarPlay
while locked” (Figure 9).
Figure 6. Allow CarPlay when screen is locked
Figure 7. Unlock iPhone message in MMI
© 2016 Audi of America, Inc.
Page 4 of 6
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Figure 8. AUDI MMI CarPlay Settings
Figure 9. Setting to “Allow CarPlay While
Locked”
Issue: The left thumbwheel button on the steering wheel cannot be used to start or end a phone call.
Cause: When the Audi Smartphone Interface is being used, all phone controls are handled directly within
CarPlay/Android Auto. The left thumbwheel button on the steering wheel does not start or end calls.
Warranty
This TSB is informational only and not applicable to any Audi warranty.
© 2016 Audi of America, Inc.
Page 5 of 6
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Additional Information
All parts and service references provided in this TSB (2044024) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.
© 2016 Audi of America, Inc.
Page 6 of 6
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.


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