Video summary

GOOD & BAD NEWS - macOS Sequoia 15.5 tested on ALL UNSUPPORTED MACs with OCLP 2.4.0!

Main summary

Key takeaways

Technology

Summary of the Subtitles (macOS Sequoia 15.5 on Unsupported Macs via OpenCore Legacy Patcher 2.4.0)

Video premise: one good + two bad news

  • The creator tests macOS Sequoia 15.5 (subtitles sometimes say “Mac Sequia 15.5”) on unsupported Macs using OpenCore Legacy Patcher (OCLP) 2.4.0.
  • The video reports one “good news” and two “bad news” across different Mac generations.

Creator’s Current Projects / Why New Content

  1. Mac Pro 2013 + external GPU via Thunderbolt

    • Goal: connect the Mac Pro 2013 “trash can” to a modern GPU.
    • Why: internal upgrade options are limited; external GPU enclosures help extend usefulness.
    • Early success: the Mac Pro was connected to an eGPU via Thunderbolt with “latest Mac OS Mter Ray” (likely Monterey) and latest OCLP.
    • Plans: future video(s) on the Mac Pro 2013 eGPU approach.

  2. Gaming/benchmarking comparison question

    • Comparison being considered:
      • M4 Pro MacBook Pro
      • M1 Mac mini (base model)
      • high-spec Intel MacBook Pro
    • Focus: whether buying older Intel hardware makes sense for heavier tasks and gaming/benchmarking.

  3. WWDC & macOS 16 speculation

    • WWDC in June may announce macOS 16.
    • Two scenarios discussed:
      • Apple supports some Intel Macs (dropping only older models).
      • Apple becomes Apple Silicon only, dropping Intel entirely.
    • The creator plans to test the first developer beta and watch for any remaining Intel kernel support, with live streams/community discussion.

Main Guide / Tutorial Content: Unsupported Mac Compatibility Overview (2011–2017 era)

General OCLP notes

  • Mentions root patching.
  • Notes OCLP can install missing drivers—for example, handling cases where Apple removed Wi‑Fi via root patch.
  • Recommends the linked “ultimate tutorial” for step-by-step unsupported Mac installation guidance.
  • Mentions supporting OCLP development via donation:
    • The creator clarifies they’re not on the dev team—they test and provide advice.

Model-by-Model Findings (Features + Issues)

iMac 2017 (best / “youngest” in this range) — mostly works

  • Described as a “perfect workhorse.”
  • On macOS “acquire 15.5” (likely Sequoia 15.5), everything works.
  • Driver removal mentioned: Wi‑Fi, handled by OCLP.
  • Links to detailed install/root patching tutorials.

MacBook Pro 2016 — works; Touch Bar works; OCLP handles security-chip quirks

  • Configuration: dedicated AMD GPU + integrated Intel graphics.
  • Requires downloading KDK (kernel development kit) automatically via OCLP.
  • Touch Bar works.

Security-chip discussion (T1 vs T2)

  • This model includes Apple T1 (many newer Intel Macs use T2 instead).
  • OCLP 2.4.0 claims to resolve issues with T1 Max related to:
    • Apple Pay
    • Core O (subtitles are unclear, but it’s described as an authentication interface)
  • Explanation given: T1/T2 store sensitive secure data for Touch ID/Face ID, payments, and authentication; T1 support issues occur because Apple no longer officially supports it.

MacBook Pro 2015 — works; minor Wi‑Fi status-bar glitch

  • Specs mentioned: Intel i7, 16 GB RAM.
  • Compatibility: no major software/graphics issues.
  • Downside:
    • Wi‑Fi icon initially shows as if not found (greyed out), but it’s already connected.
    • After interaction, the icon updates visually.

MacBook Air 2013 — mostly works but performance is too slow

  • The creator cannot recommend running Sequoia/Sonoma due to:
    • very slow CPU
    • only integrated graphics
  • Specs mentioned: 4 GB RAM, SSD present.
  • Performance: can handle basic tasks, but is very slow (video playback limitations implied).
  • Workflow issue (USB install related):
    • After USB installation, the status bar may get stuck.
    • Fix: boot into safe mode via the OCLP boot selector (hold Shift).

MacBook Pro 2012 — better performance; some 4K limitations

  • Improved RAM and graphics (mentions a dedicated Nvidia GPU).
  • Handles 4K YouTube better than the Air 2013.
  • Older Macs: issues still primarily show up around USB installation status bar behavior; safe mode is the workaround.

Mac Pro 2013 (“Trash Can”) — Two Known Issues Remain + Workaround

Known unresolved issues on Mac Pro 2013 in OCLP 2.4.0

  1. Maps label transparency issues

    • Labels show transparency glitches (also noted in Photos map view).

  2. Rendering problems in Chromium-based apps

    • Example: Chrome
      • Long load time, then black/incorrect rendering
      • Colors/red artifacts
      • Becomes unusable
    • Cause attributed to very old GPU/graphics drivers.

Quick workaround mentioned

  • Change Chrome renderer:
    • From Metal to OpenGL (subtitle mentions “OpenG”)
  • Subtitle claim: “that solves the issue for now.”

Performance otherwise praised

  • Example: 12-core Xeon + 64 GB RAM handle tasks well.

Mac Pro 2009 (“Cheese Grater”) — The “Good News” (USB Camera Fix)

  • OCLP 2.4.0 fixes an external USB camera problem (black screen / no picture).
  • Reported behavior:
    • External USB camera works when switching to the HD webcam.
    • Also works via a USB 3.0 extension card.

Installation/update note

  • After the first reboot after update (before root patches are applied):
    • Need a USB 2.0 hub between the Mac Pro and the USB keyboard/mouse to enter password and start root patching.
  • After another reboot:
    • Bluetooth keyboard/mouse works normally.

iMac 2011 (Non‑Metal) — Second “Bad News”: DRM and Metal-based Features

This section is framed as:

  • All Macs 2011 and older are “non-metal” (Metal is Apple’s graphics framework).
  • OCLP provides legacy graphics support, but with limitations.

Bad news #1: DRM content in apps does not work

  • DRM content apps fail (examples like Netflix/Prime Video/Apple TV+ style protected streaming).
  • Apple TV app example behavior:
    • Trailers (unprotected) may play.
    • Protected/free episode attempts crash/black-screen and return to the menu.

Workaround / what works instead

  • DRM content works in the web browser (example: Netflix tested in Chrome).
  • Also shown: 4K YouTube plays smoothly (though the creator notes DRM content can’t be screenshot/screen-recorded).

Additional regressions due to non-Metal

  • Dynamic wallpapers removed
    • Macintosh + Sequoia dynamic wallpapers no longer present.
    • Some Sonoma dynamic wallpapers may exist, but some are missing.
  • Maps app / MapKit-based features don’t work
    • Maps are black.
    • Photos map view removed because it crashes (GPS map display gone).
    • Weather precipitation/wind maps also black.
  • Animated background effects removed
    • Clouds/rain/sun rays removed due to Metal dependency.

iMac 2011 extra bad news: Safari transparency rendering issues

  • Safari shows transparency/animation rendering problems on very old Macs after an update.
  • Chrome renders correctly for comparison.
  • Creator asks viewers to report which websites/technologies break on Safari/other browsers (e.g., transparency, payment/auth flows, form elements).

Final Recommendations / Overall Takeaway

  • Best compatibility: newer unsupported models like iMac 2017 and MacBook Pro 2016 with OCLP 2.4.0.
  • Acceptable with minor issues: MacBook Pro 2015 and iMac 2017.
  • Performance caution: MacBook Air 2013 (very slow) and generally older non-Metal Macs.
  • Big functional limitations on 2011 and older (non-Metal):
    • DRM app playback doesn’t work, but browser playback does
    • Maps/MapKit features and dynamic wallpapers/animated backgrounds removed or broken
    • Safari may have transparency/website rendering glitches

Main Speaker / Sources (End)

  • Main speaker: “J” (creator of J’s Flying channel).
  • Sources referenced:
    • OpenCore Legacy Patcher (OCLP) 2.4.0
    • Apple app/framework concepts: Metal, MapKit, DRM
    • Upcoming WWDC / macOS 16 information (as prediction)

Original video