Notice about Possible Automatic update of built in a few Google apps

To have more excellent experiences, Apps from Google are essential for daily usage. The M4 series product have built in "Google Play Store", "Play Service", "Play Music", "Google App","Gmail". But any of them may have new version, and system may work abnormal or system error may happen due to unfinished automatic update in daily usage.
Usually, when user installed the headunit, get it accessed to wireless internet, and open the Google Play Store to download preferred apps, the Google Play Store will try to automatically update these pre-installed Goole apps, Usually it will take minutes,even hours(depends on the internet download speed) to finish updating of Google Play Service, Google Play store itself, Google App, Google Play Music. If user interrupt the update process and before they are successfully updated, user shuts off the system and it may pop up error message, or some of them may not work properly. If you have such issue, take it easy and do steps as follows:
1.keep the headunit connecting to internet;
2.Open the Google Play Store and browse My Installed App option, manually try to update each google app.If you do not operate update manually, they may update them automatically, then you need to be patient and internet access should be on.
Usually the unfinished update of "Google Play Serve" and "Google App" may lead to errors or prevent user from using some of the Google apps, especially the Google Voice App.

If you can not figure out if these Google apps are totally updated, you can reset the unit by "factorydata reset". Then take down each version number of these Google apps and do steps above until each version number of the Google apps has updated.

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Once all are updated to the latest version, I suggest that you turn off the "Auto-update apps" option from the settings of Google Play Store. This could save you smartphone data if you share it for ATOTO headunit's internet access.