Fstcast vs HY300 4K Smart Projector Guide

The app captures the screen and transmits it to our own product, displaying the content on the screen. The app also supports product upgrades and auxiliary functions.

HY300 4K Smart Projector Guide is a quick, step-by-step helper designed for one thing: getting your projector set up and working with your iPhone without wasting time. Pick your issue, follow a short checklist, and apply the fixes that solve most common setup problems. What this guide helps you do • Complete first-time HY300 projector setup • Connect the projector to WiFi • Mirror an iPhone using AirPlay, Screen Mirroring, iOS Cast, or similar options • Fix blurry images using the available focus controls • Correct tilted or trapezoid-shaped images with keystone settings • Fix HDMI “no signal” problems • Solve Bluetooth, audio, remote-control, and app issues • Understand black-screen and streaming compatibility problems • Use factory reset safely when simpler fixes do not work Built for speed • Clear steps with no long paragraphs • Simple screens you can follow while setting up the projector • Helpful checks so you don’t miss the obvious: power, focus, input source, WiFi, Bluetooth, and projection settings • Troubleshooting guidance for common HY300 problems Important note HY300 projectors are sold by many different sellers and may use different firmware, menu names, focus controls, and built-in apps. Follow the manual supplied with your exact projector when its instructions differ from this guide. Independent guide / disclaimer This app is an independent guide/helper for HY300-family portable smart projectors. It is not affiliated with or endorsed by any projector manufacturer, seller, streaming service, or official projector application. This app does not control, connect to, cast to, or remotely operate your projector. It provides setup and troubleshooting information only.