optical block - 4KProjectorGuide

Troubleshooting

Shadow or Dark Patches on Screen: Identifying and Fixing Optical Block Issues

screen shadow patch diagnosis

Keen to restore your screen’s clarity? Discover how optical block issues cause dark patches and how to fix them effectively.

4KProjectorGuide Team
December 29, 2025

iPhone 18 Pro Could Be Noticeably Thicker Than iPhone 17 Pro

Audio & Integration

iPhone 18 Pro Could Be Noticeably Thicker Than iPhone 17 Pro

Leaked details suggest the upcoming iPhone 18 Pro could be noticeably thicker than its…

4KProjectorGuide Team
July 8, 2026

optimal upgrade placement strategy

Throw & Placement

The Placement Choice That Makes Future Upgrades Easier

To make future upgrades easier, place your system where you have easy…

4KProjectorGuide Team
July 8, 2026

Apple's iPhone 18 Pro Max might come with a massive battery

Audio & Integration

Apple’s iPhone 18 Pro Max might come with a massive battery

Speculation suggests the iPhone 18 Pro Max may include a significantly larger battery,…

4KProjectorGuide Team
July 8, 2026

Microsoft Lays Off Thousands of Xbox Employees, Closes Game Studios

Gaming & Lag

Microsoft Lays Off Thousands of Xbox Employees, Closes Game Studios

Microsoft has laid off over 2,000 Xbox employees and shut down several game studios,…

4KProjectorGuide Team
July 8, 2026