Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Wiping Cache Partition: This may apply to your Samsung phone running Android 7.
https://support.t-mobile.com/docs/DOC-37830.
At this stage only wipe the cache partition. Performing a factory reset should be considered only as a last resort measure when all else fails.
Assessing problem in Safe Mode:
https://www.digitaltrends.com/mobile/how-to-turn-safe-mode-on-and-off-in-android/