# HY300 4K Smart Projector Guide — App Pro Remote Manual Setup > Setup and troubleshooting guide for HY300 4K Smart Projectors. (iPhone/iPad app by Cristian Andrei Romascu Radu.) - Source: https://appshunter.io/ios/app/hy300-4k-smart-projector-guide/id6780073766 (this page in markdown: same URL + `.md`) - Developer: [Cristian Andrei Romascu Radu](https://appshunter.io/developer/1029035234) - Category: Utilities, Reference - Price: Free - Rating: 1.50/5 from 2 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 16.6 · 7 MB - Languages: American English, Romanian - Released: 2026-06-22 - Data updated: 2026-08-18 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/hy300-4k-smart-projector-guide/id6780073766/reviews.md ## What is HY300 4K Smart Projector Guide? 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. ## Key features - Step-by-step setup instructions - WiFi and Bluetooth connection help - Screen mirroring guidance - Image focus and keystone correction - Troubleshooting for common issues - Factory reset procedures ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/hy300-4k-smart-projector-guide/id6780073766/reviews.md ### 1/5 — Not a remote *2026-07-18* It’s not letting me use the manual remote buttons ### 2/5 — not feee *2026-07-18* says the membership to sign up is free but charged my card 2.99 don’t say it’s free if it isn’t ## Frequently asked questions about HY300 4K Smart Projector Guide ### How do I set up my HY300 projector for the first time? The HY300 guide offers clear, step-by-step instructions for first-time setup. It covers initial power-on, connecting to WiFi, and basic configuration to get your projector ready for use. ### Can HY300 help me connect my iPhone to the projector? Yes, the HY300 guide provides specific steps for mirroring your iPhone screen. It details how to use AirPlay, Screen Mirroring, iOS Cast, and similar options for seamless projection. ### What kind of image problems can HY300 help fix? HY300 addresses common image issues such as blurry pictures, tilted or trapezoid-shaped images (keystone correction), and 'no signal' problems with HDMI connections. ### Does HY300 have ads? Yes, HY300 contains advertisements. As a free utility, it is supported by ads to provide its setup and troubleshooting information. ### What if simpler fixes don't work on my HY300 projector? For persistent issues, the HY300 guide explains how to safely perform a factory reset. This is presented as a last resort when other troubleshooting steps have not resolved the problem. ### Is HY300 compatible with all HY300 projectors? While HY300 aims to cover common issues, it notes that different sellers may have projectors with varying firmware and menu names. Always refer to your projector's specific manual if instructions differ. ### How often is HY300 updated? The latest version of HY300 is 1.1, and it was last updated on August 13, 2026. Updates typically address new issues or improve existing troubleshooting steps. ### What devices does HY300 support? HY300 is designed for use on iPhones and iPads. It is available for devices running iOS. ## Version history (last 2 releases) ### 1.1 — 2026-08-13 Performance improvements and bug fixes. ### 1.0 — 2026-06-22 No release notes. ## More apps by Cristian Andrei Romascu Radu - [Instant Calming and Relaxing Images](https://appshunter.io/ios/app/instant-calming-and-relaxing-images/id1029035235) - [WatchApp for Amazfit,Zepp Life](https://appshunter.io/ios/app/watchapp-for-amazfitzepp-life/id6444719605) - [BT Notifier: Smartwatch Notice](https://appshunter.io/ios/app/bt-notifier-smartwatch-notice/id6444747497) - [AI Chat Next Gen](https://appshunter.io/ios/app/ai-chat-next-gen/id6478509084) - [Compress PDF 1MB,500KB,200KB](https://appshunter.io/ios/app/compress-pdf-1mb500kb200kb/id6752036180) - [A9 Mini Camera WiFi Guide](https://appshunter.io/ios/app/a9-mini-camera-wifi-guide/id6756455437) All apps by Cristian Andrei Romascu Radu: https://appshunter.io/developer/1029035234 ## Related topics [hy300 projector](https://appshunter.io/ios/topics/hy300-projector) · [hy300 projector remote](https://appshunter.io/ios/topics/hy300-projector-remote) · [hy300](https://appshunter.io/ios/topics/hy300) · [magcubic projector](https://appshunter.io/ios/topics/magcubic-projector) · [hy300 projector app](https://appshunter.io/ios/topics/hy300-projector-app) · [hy300 pro projector remote](https://appshunter.io/ios/topics/hy300-pro-projector-remote) · [magic cube projector](https://appshunter.io/ios/topics/magic-cube-projector) · [hy300mini](https://appshunter.io/ios/topics/hy300mini) · [projector remote hy300pro](https://appshunter.io/ios/topics/projector-remote-hy300pro) · [hy300 4k smart projector guide](https://appshunter.io/ios/topics/hy300-4k-smart-projector-guide) · [projector remote control](https://appshunter.io/ios/topics/projector-remote-control) · [rca remote projector](https://appshunter.io/ios/topics/rca-remote-projector) · [magcubic](https://appshunter.io/ios/topics/magcubic) · [lcd projector remote](https://appshunter.io/ios/topics/lcd-projector-remote) · [hdmi projector](https://appshunter.io/ios/topics/hdmi-projector) · [projector app remote](https://appshunter.io/ios/topics/projector-app-remote) · [mirroring projector](https://appshunter.io/ios/topics/mirroring-projector) · [xbj projector](https://appshunter.io/ios/topics/xbj-projector) · [projector app control](https://appshunter.io/ios/topics/projector-app-control) · [projector control](https://appshunter.io/ios/topics/projector-control) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-18.*