Y2Linux 1.0 Beta 8.6

Y2Linux 1.0 Beta 8.6: smoother, safer headphone sound and less battery with a headphone profile. Linux 6.18 and the native Reborn music player for the Innioasis Y2.

Already running Y2Linux

Settings → About & Updates → Check for Updates → Update Now.

What's new

A review of everything in audio playback after Beta 8.5:

• No sudden loudness. A fade-in now continues when you skip, seek or change songs while it runs, and turning the volume up during a fade keeps fading. Sound settings that make the music louder (turning a headphone profile off, a bass preset, switching Normalize Volume) now fade in too.
• Paused music takes your new settings. Changing the equalizer, a profile, Normalize Volume or Reset Settings while paused now applies when you press Play (before, the old sound continued). Choosing the Headphone Level that is already selected no longer restarts the song.
• Less battery with a headphone profile. A profile no longer holds the processor at a higher speed while music plays, and the equalizer itself uses fewer processor cycles. The sound is unchanged.
• Profiles for hi-res files. The automatic volume reduction of a profile now also covers 88.2–384 kHz files; six profiles play up to 0.4 dB quieter because of it. The profile list no longer shows a "LICENSE-AutoEq" entry.
• Headphone level change made safe in every case. The kernel never changes the headphone output level while the amplifier is running, even when a song starts at that exact moment.

Everything from Beta 8.5 is included.

Install (from stock)

You need SP Flash Tool v5.2032, a USB cable, Y2Linux-1.0.0-beta.8.6-first-install.zip below and the Innioasis Y2 firmware package v3.2.0 from Innioasis (only this version works; it is also your way back to stock).

1. Unpack both.
2. SP Flash Tool → Download Only → load MT6582_Android_scatter.txt from the Y2Linux zip. Exactly BOOTIMG, RECOVERY, ANDROID and USRDATA are ticked.
3. Click Download and connect the switched-off Y2; wait for the green tick.
4. Unplug and press Power: the player sets up its Internal Storage (a few seconds), then Y2Linux and Reborn start, music works.
5. Connect the Y2 to the computer and copy (don't move) system.img from the Innioasis package into the Firmware folder on Internal Storage. The player takes the Wi-Fi/Bluetooth firmware from it and turns the radios on.

Full guide: INSTALL · How updates work: Recovery and updates · Headphone settings: Headphone output

Known issues (beta)

• The highest volume is still lower than stock's, even at High; demanding headphones may want more.
• A headphone profile still uses some extra processor time while it plays; its effect on battery life has not been measured yet.
• The restart fix of Beta 8.4 is not yet confirmed over many restarts. If the screen ever stays dark, hold Power for 10 s and start again.
• Battery life in sleep is not yet stock-like (about 8 mA vs stock 1.3 mA; some players draw more, #42).
• GC9503V players keep the old screen-off behaviour until a GC9503V owner has confirmed the new sequence (#45).
• The player cannot detect wired headphones yet; the jack plays whenever no Bluetooth headphones are connected.
• The fast copy path has not yet been tested with the cable pulled mid-copy, across sleep, or with Windows Explorer.
• Songs with several artists ("A;B") count as one artist; there is no Album Artist view yet.
• FM radio is in the works for a later beta.

Files

• Y2Linux-1.0.0-beta.8.6-first-install.zip: images, scatter files and checksums for SP Flash Tool. The data image has no SSH key (developers: tools/production/first_owner.py).
• manifest.json, manifest.sig, rootfs.ext4.gz, bootimg.img.gz, recovery.img.gz: the signed over-the-air update (Ed25519 key platform-v1-release-20261015, sequence 6800).
• Y2Linux-1.0.0-beta.8.6-sources-buildroot-legal-info.tar (licences, manifests, this project's packages) and the third-party, toolchain and Linux sources linked below: corresponding sources. Our own code: Y2Linux and Y2Reborn at tag baseline-94. The headphone profiles are AutoEq results (MIT, Jaakko Pasanen); their licence ships with them.
• SHA256SUMS for the attached files.

Beta software: use at your own risk. Not affiliated with Innioasis, MediaTek, Last.fm or AutoEq. Details: Beta 8.6 report.

Sources unchanged since an earlier release

• Y2Linux-sources-third-party-dce38ffdd9e0.tar (attached to baseline-52), SHA-256 dce38ffdd9e0a2b5adf687e95c2a67c22ca355e10c430f879630fbf0d5ea7c1a
• Y2Linux-sources-toolchain-f7cda4c7d213.tar (attached to baseline-75), SHA-256 f7cda4c7d2134bed15dacc7afd7e1687621a57412d60e49c725efc3880bf1bc6
• linux-6.18.56.tar.xz (attached to baseline-52), SHA-256 4633bbda2ab95eaf2a7af4041236451d6759c72e6946265531af4b3aacefbf89