How to stop phone from rotating and closing keyboard?

[Android Central Question]

I have a Galaxy Amp Prime. While typing on regular and downloaded keyboards my keyboard will disappear at random intervals and its very annoying and inconvenient.

My phone is also rotating randomly for no real reason. Only in Landscape mode I believe is sideways, while on YouTube it goes from full screen to portrait screen for no reason. Yes I have rotate screen on lock so that won't happen when moving phone, yet it happens. Also when playing some games in landscape sideways mode it will stop and close for a second to go to portrait but go back to normal right after. Please help if you can.

 

[B. Diddy]

Welcome to Android Central! For the keyboard issue, is it possible that you're accidentally tapping the Back or Home buttons to cause the keyboard to close?

Do these problems also occur in Safe Mode? https://www.hardreset.info/devices/samsung/samsung-galaxy-amp-prime-3/safe-mode/