Tetracom Help — Galaxy S24 / S24+ / S24 Ultra

SM-S921 / S926 / S928 — One UI 6.1, Android 14 / 15

Get the latest Tetracom APK re-install over your current build — same signing key

The S24 ships with One UI 6.1. These are the exact menu paths for that version. S24 + S24+ + S24 Ultra all behave identically at the Settings level — only the screen layout differs.

One-time setup (~3 minutes on the S24)

Tetracom → gear icon → Connection → Stay connected when phone is locked → ON. Confirm the popup. “Tetracom is listening” appears in your status bar.
Settings → Apps → Tetracom → Battery → Allow background activity → ON.
Settings → Apps → Tetracom → Battery → Optimise battery usage → Unrestricted.
Settings → Battery → Background usage limits → Never sleeping apps → + Add apps → check Tetracom → Add.
Settings → Battery → Background usage limits → Sleeping apps — confirm Tetracom is NOT in this list. If it is, tap to remove.
Settings → Battery → More battery settings → Adaptive battery → OFF.

S24-specific quirks

Galaxy AI features (Live Translate, Note Assist) — any conflict?: No. Tetracom doesn’t use the on-device AI co-processor. Galaxy AI runs alongside Tetracom without competing for resources.
The S24’s “Adaptive Refresh Rate” drops the screen to 1 Hz on the lock screen — does that affect Tetracom?: No. The screen-refresh-rate machinery is independent of the foreground-service scheduler. Tetracom keeps connected even with the always-on display in 1 Hz mode.
S24 Ultra S Pen — can I use it for PTT?: Not yet. S Pen button events go through Samsung’s SDK which Tetracom doesn’t integrate with. PTT remains finger-on-screen for now.

Battery cost on the S24

Measured: ~1.5% per day with default settings (15-second WS keepalive, occasional blurts, screen idle). Heavy use (50+ blurts/day, location sharing on, frequent identity switches) can push this to ~3% per day. Negligible compared to the S24’s 4000 / 4900 / 5000 mAh batteries.