If you need version 8.10 (not 8.1.0), let me know — that is a more recent release. Version numbers in the Play Store often use 8.1.0 for build 810.
Always verify the source of your APK. Official Google Play Store files are digitally signed by Google. If your device warns you that the "signature is mismatched," do not proceed with the installation, as the file may contain malware. google play store apk for android 810 link
Follow these steps to get your Play Store back up and running: 1. Enable Unknown Sources If you need version 8