Wi Fi

How GZreader turns Wi‑Fi on and off, and saves battery.

Wi‑Fi is On, Off or Auto (Auto is the default):

• The quick panel's Wi‑Fi tile goes through them: Wi‑Fi on → Wi‑Fi off → Wi‑Fi auto → Wi‑Fi on. On is drawn white on black; Auto's icon has an A and still shows whether Wi‑Fi is on right now (crossed out while it's off).
• Settings → General → Wi‑Fi offers the same three, with Networks (choosing a network), HTTP proxy (tap: on or off; hold: its address) and Network info under them. The row shows the mode.
• The status bar (Home's and a book's top bar) shows the Wi‑Fi icon as before, on or off; on Auto an A follows it.

Mode	What it does
On	Wi‑Fi stays on. If it goes off by itself (after sleep, out of range), GZreader turns it on again when something needs it, and leaves it on.
Off	Wi‑Fi stays off. Background work (syncs when a book opens or closes, after waking, Notes, Calendar, the auto-download shelf) waits until Wi‑Fi is on again, also after a restart. Things you ask for (browsing Grimmory, a download, checking for updates) still turn it on, then off again after a minute.
Auto	GZreader turns Wi‑Fi on by itself when it needs the network and off again after a minute unused, as long as nothing still needs it (an open Grimmory browser, a download or its queue, the library index, a QR screen, an update download).

On Auto:

When	Wi-Fi
Browsing Grimmory (a book's page and its Download too, also when the list came from the Kindle), downloading, connecting, sending the log, checking for / installing updates	turned on ("Connecting to Wi-Fi…")
A Grimmory book opens	turned on quietly: pull the position, send queued changes, sync bookmarks, highlights and notes
A book closes with unsent changes (position, session, highlights)	turned on quietly to send them
Wake after 15 min or more with a book open	turned on quietly to pull the position
Page turns, bookmarks, highlights, sleep	not turned on: changes wait for the next sync
Daily update check, library index refresh	only if Wi-Fi is already on

Wi‑Fi that was already on when GZreader started or woke up counts as GZreader's on Auto (off after a minute unused). Going to sleep turns off Wi‑Fi GZreader turned on.

Turning Wi‑Fi on or off anywhere else (KOReader's Wi‑Fi menu, a gesture, the network list) chooses On or Off, so the mode always says what you last asked for. KOReader's own "Disable Wi‑Fi connection when inactive" isn't offered (it turned Wi‑Fi off after five quiet minutes even on On; Auto does that job), and a tick saved earlier is cleared when GZreader starts. The mode is kept in gzreader_wifi_mode; settings from before it (the "Wi‑Fi only when needed" switch, gzreader_wifi_on_demand, and gzreader_wifi_kept_off) become Auto, On or Off.