Android 5.1.1 (Lollipop) is a legacy operating system released in 2015. While it is no longer officially supported with security updates, you can still download and install compatible versions of the to maintain access to apps and services . Latest Compatible Version for Android 5.1.1
: To ensure the store works, you should also update Google Play Services to a compatible version (such as version 15.3.11 or 22.7.54) from APK.GOLD or APKMirror . Troubleshooting & Maintenance Android 5
Download it from the same trusted source, then install it the same way. After installing, reboot immediately. make sure you have:
[Download from APKMirror] (https://www.apkmirror.com/apk/google-inc/google-play-services/) Android 5
Before you leave, make sure you have: