This week, we
published an updated MobileXPRT 3 build, version 188.8.131.52, on MobileXPRT.com and in the Google Play Store. The new build addresses an issue we recently discovered, where
MobileXPRT was crashing after installation on some Android 11 phones.
Permissions requirements and a new storage strategy called scoped storage were causing the problem. By default, scoped storage restricts
an app’s storage access to app-specific directories and media, and prohibits
general access to external or public directories. It also prevents third-party
apps such as email clients or file managers from accessing MobileXPRT 3 results
files. This default setting requires an opt-in permissions prompt that
MobileXPRT 3 did not have prior to this week’s release.
MobileXPRT 184.108.40.206 points all of the benchmark’s file references to its private directory and allows users to zip results files and attach them to results submission emails. Neither change affects the testing process or test scores. If you have any questions or comments about the new MobileXPRT 3 build, please let us know!
As we discussed last week, we’ve learned that MobileXPRT 3 is crashing after installation
on some Android 11 phones. We now know what is causing this behavior: changes
to the storage strategy and permissions requirements in Android 11. The new file
storage strategy is called scoped storage. By default, scoped storage restricts an app’s storage access
to app-specific directories and media, and prohibits general access to external
or public directories. This default setting requires an opt-in permissions
prompt that MobileXPRT 3 does not currently have. It also prevents third-party
apps such as email clients or file managers from being accessing MobileXPRT 3
To fix this, we are
planning to rebuild MobileXPRT 3 to (1) point all of the benchmark’s file
references to its private directory, and (2) allow users to zip results files
and attach them to results submission emails. While we do not expect that either
of these changes will affect performance results, we’ll perform testing to
confirm this before we publish the new build.
We don’t expect these changes to take too long, and will keep you updated here in the blog. If you have any questions about the update process or MobileXPRT 3, please let us know!
We recently received a tech support inquiry about problems with new MobileXPRT 3 installations on some Android 11 phones. The tester installed MobileXPRT 3 on a selection of phones running Android 11, and the app crashed immediately upon opening. We were able to reproduce the issue on multiple phones in our lab, and currently know that the issue may happen on the Google Pixel 3, Google Pixel 4a 5G, Google Pixel 4XL, Google Pixel 5, and the OnePlus 8T (running Android 11 with an Oxygen OS skin).
MobileXPRT 3 continues
to run without issues on Android 9 and 10 phones. When we updated an Android 10
phone with an existing MobileXPRT 3 installation to Android 11, we found that
the benchmark ran successfully. This suggests a lack of fundamental
incompatibilities between MobileXPRT 3 and current versions of Android 11. Because
some of our lab techs experienced crashes immediately after the app asked for
permissions, we think it’s possible that new permissions-setting requirements
in Android 11 are causing the problem.
working to isolate the problem and identify a course of action. We’ll share
more information here in the blog as soon as possible. If you’ve encountered
this problem in your testing, we apologize for the inconvenience, and we’re
thankful for your patience as we work towards a solution.
If you have any information you’d like to share about running MobileXPRT 3 on Android 11, please let us know!