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- Like my work and want to buy me a coffee? Feel free to buy one here: https://ko-fi.com/thegammasqueeze
Instructions:
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If you already on GammaOS and want to upgrade, follow this guide, you won't lose your data (don't run the EraseUserData.bat script):
Upgrading to v1.5 from GammaOS / Stock OS with unlocked bootloader -
Help! My device is no longer booting! Or I want to go back to Stock OS!
Information
GammaOS is based on LineageOS 19.1 (Android 12). It provides a debloated and performance optimized experience for users who are looking to get the best out of their Anbernic T618 devices.
Features:
- Based on debloated and clean LineageOS 19.1 build, Android 12 for a smoother experience. GammaOS includes Google Services and Play Store. GammaOS Lite excludes Google apps and services for extra performance headroom.
- Daijisho launcher as front-end, pre-configured with RetroArch for some systems. (Optimized settings for GB,GBC,GBA,NES,SNES,Genesis,PSX) (BIOS files need to be supplied by you).
- Aurora store included.
- Quick settings tiles for Performance modes, ABXY layout changes, Fan control, Adjusting analog stick sensitivity, invert axis for analog left/right, swap dpad and left analog input (useful for RG ARC). No more need to hold down button combos.
- Adguard ad blocking included as default (can be disabled via Private DNS settings).
- Magisk/root included.
- 60hz refresh rate fix for display.
- Oversharpening display fixed.
- Analog stick calibration for more tighter controls.
- CPU, GPU, Memory now using performance governors for extra performance boost.
- Experimental GPU drivers taken from Retroid Pocket 3+.
- L2/R2 fixed for apps and games with issues with those buttons.
- GarlicOS 2.0 bootloader included, no need to install any additional applications. Pop in your SD card and go (404 & 505 supported).
Other Information:
- RetroArch hotkey: Home/Back button
- RetroArch menu toggle: (L3 + R3 or Home/Back button short press). Choosing Close Content option closes the game.
- RetroArch shortcuts (Hold hotkey down) + L1 = Slow Motion | L2 = Load State | R2 = Save State | R1 = Fast Forward | X = Show FPS | Y = Screenshot
- Auto save state then quit RetroArch: Hold down Home/Back. Auto loads save state when launching a game again.
What's missing:
- Built-in button to on-screen mapping software, alternative solutions can be found in app store.
Changelog
- (v1.5.1) Fix performance regression when microphone is activated.
- (v1.5.1) Fix microphone audio buffer, microphone now works again.
- (v1.5) Improved performance thanks for 2ghz CPU frequency fix.
- (v1.5) Add fan control for 405v.
- (v1.5) Moved everything to Quick settings tiles for Performance modes, ABXY layout changes, Fan control, Adjusting analog stick sensitivity, invert axis for analog left/right, swap dpad and left analog input (useful for RG ARC). No more need to hold down button combos.
- (v1.5) Improved audio latency, down from approx 250-500ms to 44ms (89 round robin).
- (v1.5) Add aptX BT audio support.
- (v1.5) Improve battery standby time. With Gamma Lite + Airplane mode, can get around 30 days standby time.
- (v1.5) Enable home/back key to act as menu button in RA, as well as the hotkey for other shortcuts.
- (v1.5) Holding down home/back key will save your progress now in RA, and lets you quick resume games, similar to the MM OnionOS game switcher.
- (v1.5) Update all RA cores, but stick with RA 1.15 due to touch screen regression.
- (v1.5) Add Firefox alternative browser.
- (v1.5) Fixed scope storage issues, can now launch Yaba2 and Redream directly from Daijisho (need to enable Allow All Files access for the relevant emulator first).
- (v1.5) Fix some rotation issues with 405 screens.