Note: No verified source exists for an app named exactly "srkwikipad 4k movies." I’ll assume you mean an unofficial Android APK that provides 4K movie streaming/downloading (often distributed as "srkwikipad" or similar). Below is a general, step-by-step guide for installing such an APK safely and minimizing risk. Do not sideload apps from untrusted sources if you care about security or copyright.
Turn your SRKWikipad into a client for a Plex server running on your PC or NAS. srkwikipad 4k movies install
If a file meant to be a video asks for administrator permissions to install, delete it immediately. Note: No verified source exists for an app
After completing your srkwikipad 4k movies install, populate the device with these apps: populate the device with these apps: