How to use ScoZu on the Xteink X4 Pro and in the Pocket ScoZu iPhone app.
On the X4 Pro, Settings › System › How-To Guide shows a code that opens this page on your phone; the iPhone app has a How-To Guide link on its main page.
ScoZu is a reading system for the Xteink X4 Pro: books, articles, flashcards, daily puzzles and your stats, made for an e-ink screen. Everything runs on the X4 Pro and no account is needed. The Pocket ScoZu iPhone app runs the same ScoZu on your phone, and can send things to and from your X4 Pro.
Install ScoZu from scozu.thatmess.com/install with Chrome or Edge on a computer and a USB-C cable, or with the update file on the SD card. Updating is the same: install again. Your books, settings and progress stay on the SD card.
Home shows the book you're reading under Continue Reading with how far you are; tap it to carry on. Below are the tiles:
The small star near the top of Home opens ScoZmic, your daily reading of the sky. Feeds, Flip It, Scoutle, ZumiZen, Cards and Stats can each be taken off Home with Show on Home in Settings › Apps.
The X4 Pro is mostly touch. It also has a Home key just below the screen, two side buttons (Left and Right) and the Power button. A hold is about half a second.
| Tap | Open or choose. |
|---|---|
| Hold | Options for what you're holding: a book, file, article, card, Flip It group, bookmark, highlight or light preset. The hint at the bottom of a screen says when there are some. |
| Swipe up or down | The next or previous page of a list. |
| Swipe right from the left edge | Back. So does tapping ‹ beside a screen's title. |
| Swipe down from the top edge | The light panel: drag the sliders for brightness and warmth, or tap a preset. Swipe up, or tap below it, to close. |
| Tap outside a pop-up | Closes it without choosing. |
| Home key | Tap: Home, from anywhere. Double tap: the light on or off. Hold: the reader menu, in a book. All three can be changed in Settings › Controls › Home Button. |
| Swipe left / right | Next page / previous page. |
|---|---|
| Tap the middle | The reader menu (with the standard Touch Zones, below). |
| Left and Right buttons | Previous page and next page. |
| Hold a word | Look Up: what it means. |
| Hold a word, then drag | Highlights from that word to where you lift. Tap “Highlighted · tap to undo” to take it back. |
| Tap a link | Follows it. |
| Leave the book | Tap the Home key, or ‹ Library in the reader menu. |
Touch Zones (Settings › Controls) chooses which part of the page does what when you tap: Back turns back a page, Next turns forward and Menu opens the reader menu. There are four layouts:
Pages turn by swiping until you allow taps: set Next Page and Previous Page to Tap & Swipe or Tap Only. Inverted Tap swaps Back and Next. Tapping the Menu zone opens the menu either way, as long as Show Reader Menu is set to Tap.
| Hold Power | Sleep. With a passcode set, it also locks. |
|---|---|
| Press Power once | Nothing, unless you choose something in Settings › Controls › Short Power Button Click: Sleep (without locking), Page Turn, Refresh Screen, Links and Footnotes or Confirm. |
| Double-click Power | The light on or off (Double-Click Power for Light). |
| Power and Right together | A screenshot. |
| Left and Right outside a book | Move the outline through a list. |
| Hold Left or Right in a book | Nothing, unless Long-Press Button Behavior is set to Chapter Skip or Orientation Change. |
Also in Settings › Controls: Side Button Layout (Reader) swaps or turns off the side buttons in books, Touch Reader Controls turns touch off on the reading page, Show Reader Menu opens the menu with a tap or a swipe up from the bottom edge, and Wake With wakes ScoZu with Power only, or any button.
In the iPhone app, the bar under the screen has Back, Home (it works like the Home key) and Exit.
ScoZu reads EPUB books (and Xteink's XTC page files), plus text and Markdown files as documents. Books you add show up in Library; copy-protected books from shops and libraries can't be opened, and ScoZu says so.
With the Pocket ScoZu app, share a book, a web page or a picture to ScoZu and choose your X4 Pro. It waits in the app until your X4 Pro is on the same Wi-Fi with Connect › Wi-Fi Transfer open, then goes straight over. See Pocket ScoZu for pairing.
Open Connect › Wi-Fi Transfer on the X4 Pro. On a phone or computer on the same Wi-Fi, open scozu.local in the browser (or the address the X4 Pro shows). From there you can add books, follow sites and send articles to Feeds, make Cards, import Flip It groups, see your highlights and change settings. No Wi-Fi nearby? Connect › Hotspot makes one.
Connect › USB Drive turns the X4 Pro into a drive on your computer: drag books into the books folder, then eject it. You can also take the SD card out and copy books on directly. Connect › Calibre works with Calibre's wireless device connection.
Open a book from Continue Reading on Home, from Library or from Files. ScoZu remembers your place in every book.
Tap the middle of the page (or hold the Home key) to open the menu. It shows the chapter, your progress, previous and next chapter, and three panels:
The bookmark icon above the book's title adds or removes a bookmark on this page; ‹ Library takes you back.
Hold any word, then lift, to see what it means. The first time, ScoZu offers to download its dictionary over Wi-Fi (about 9 MB); the install page can also copy it over USB. Words you look up can become Flip It cards.
Hold a word and drag across the text to highlight it. Find them all in Contents › Highlights: tap one to go there, hold it to add a note or remove it. They're also on scozu.local, and ScoZu Cloud keeps them in step across your devices.
The status bar can show the time left in the chapter or the book (Settings › Reader › Status Bar); ScoZu learns how fast you read. At the end of a book, ScoZu offers the next books in the same folder, or Home.
Library shows your books as covers or as a list. Sort with Recent, Title and Author at the bottom; the filter at the top shows reading, read or new books, your Collections and Series; the magnifier searches.
Files shows everything on the SD card, folder by folder. Hold a file or folder to open, rename, delete, send it to your iPhone or add it to the Library.
Follow sites on scozu.local (Apps › Feeds) or in the iPhone app. ScoZu checks them, skips the unreliable ones, and saves each new article as a clean page without the clutter. On the X4 Pro, Feeds groups articles by site; sort by Recent, A–Z or Unread. Hold an article to Keep it or delete it. Read articles are cleared away after a while (Settings › Apps › Feeds); kept ones stay.
Flashcards from the words you look up and the lines you highlight, or your own: import a CSV, Excel or Anki file on scozu.local. Tap a card to flip it, then Again or Got It. Hold a group for options: Reset Got Its, Shuffle Cards, Clear Cards, or Delete Group for one you imported (it goes from your other devices too). Hold a card while studying to remove it.
Your business card, a QR code or any picture, full screen and ready to show; tap or swipe to flip it. Make them on scozu.local (Cards › New Card). Hold a card to make it the default, rename it or send it to your iPhone. A card can also show on the lock screen.
Three tabs. Overview: your yearly goal, time read today, this week and this year, your streak and pace. Month: a calendar of the month, each day darker the more you read; tap a day for what you read, and swipe (or tap ‹ ›) for other months. Books: what you're reading and what you've finished; tap one for its stats. Set a yearly goal in Settings › Apps › Stats. With ScoZu Cloud, Stats add up all your devices.
Opened a book just to check something? Hold it in Books, or use Remove from Stats on its page: its time so far stops counting. The book and your place in it stay.
Tap the star on Home for today's reading: your horoscope, the moon, the planets and meteor showers. Set it up, or turn it off, in Settings › Apps › ScoZmic. Only the horoscope goes online.
New puzzles every day, the same on all your devices, made for an e-ink screen. Each game has its own how-to and keeps your streaks and results. Once you've solved today's, hold the puzzle to play another (practice ones don't count).
Words you miss can go to Flip It. Stuck? Most puzzles can show one square or the whole answer; that day then doesn't count.
The ScoZu iPhone app runs ScoZu on your phone, and sends books, articles and pictures to and from your X4 Pro. It has its own guide: see the iPhone app tab.
Optional and free. ScoZu Cloud keeps your X4 Pro and the app in step and backs up your ScoZu. It keeps where you are in each book, highlights and notes, bookmarks, settings such as text size, reading speed, stats, game progress, Flip It, and the sites you follow. Books and articles themselves stay on each device.
Open Settings › Connections › ScoZu Cloud and scan the code with your phone, or sign in at cloud.thatmess.com and enter the code. Sign in with Apple, Google or a passkey.
Sync chooses when: When I Read (as the X4 Pro sleeps and wakes), Daily at a time you pick, or Off. With When I Read or Daily, it also syncs whenever the X4 Pro goes online anyway, for Wi-Fi Transfer or Send to iPhone. Last Synced says when it last ran and what came over. Connect › Sync Now, or Sync Now on this screen, syncs at once. A book read on another device opens asking whether to continue from there.
ScoZu backs up once a day, and Sync Now backs up straight away. See and Restore lists your backups by kind (Feeds & Cards, Flip It, Games, Highlights & Notes, Library, Reading & Stats, Settings); pick one to restore it, or Everything to restore them all at once. Before restoring, ScoZu backs up what's there, so nothing is lost.
Disconnect on this screen, or on the website, stops syncing; the device's backups stay on the website. To delete your account and everything stored with it, sign in at cloud.thatmess.com, choose Delete Account… and type DELETE.
Settings › System › Restart restarts ScoZu; your place and settings are kept. If it doesn't respond at all, hold the power button for a few seconds.
If something goes wrong, ScoZu restarts by itself and says so. It saves crash_report.txt on the SD card: please email it to us so we can fix it.
In the book, open the reader menu's More › Clear Book Cache; ScoZu lays it out again next time. Settings › System › Reset Book Cache does every book, but your place in each is lost.
CrossPoint's flash tools can install the official Xteink firmware at any time. Your books on the SD card stay.
Email less.of@thatmess.com: tell us what you were doing, what you expected and what happened instead; a photo of the screen helps. See also Support.
The ScoZu app is two things in one. Pocket ScoZu is ScoZu itself, running on your phone: read, play the daily puzzles, and use Feeds, Flip It and Stats, with no X4 Pro needed. With an X4 Pro, the app is also its companion: it sends books, web pages and pictures to it, takes things back, and manages it from your phone.
The main page has:
Pocket ScoZu works like the X4 Pro, so everything in the X4 Pro tab applies: swipe to turn pages, tap the middle for the reader menu, hold a word to look it up. Under the screen are three buttons:
The X4 Pro's hardware isn't there: no light, no power button, no side buttons. So a few settings are only on the X4 Pro, and Settings says so.
Manage opens scozu.local inside the app. The pill at the top picks which ScoZu: Pocket ScoZu, or your X4 Pro once it's paired. From there you can add books, follow sites in Feeds, make Cards, import Flip It groups, see your highlights and change settings.
Managing your X4 Pro needs it on the same Wi-Fi as your phone, with Connect › Wi-Fi Transfer open on it.
In Safari, Files, Mail or Photos, tap Share and choose ScoZu, then where it goes: Pocket ScoZu or your X4 Pro.
With an X4 Pro paired, opening a book with Open in ScoZu from Files or Mail asks the same question.
From then on the app checks it's your X4 Pro each time it connects. To unpair, use Forget in Manage, or Settings › Connections › Paired Phones on the X4 Pro.
To your X4 Pro: share to ScoZu and choose your X4 Pro. It waits under Shared from your iPhone until the X4 Pro is on the same Wi-Fi, then goes over in order. Send Now tries straight away; × takes one off the list.
From your X4 Pro: hold a book, card or picture and choose Send to iPhone, then open Connect › Send to iPhone with the app open on the same Wi-Fi. It shows under Shared from your X4 Pro and lands in Pocket ScoZu, in the same folder as on the X4 Pro.
Pocket ScoZu can join ScoZu Cloud like an X4 Pro, so your place in each book, highlights, settings and Stats follow you between them. In Read & Play, open Settings › Connections › ScoZu Cloud and tap Connect on This iPhone: the website opens with the code filled in; sign in and tap Connect.
Pocket ScoZu syncs when you open and close the app. If your X4 Pro already backs up to ScoZu Cloud, connecting a fresh install offers to restore everything from it. See ScoZu Cloud in the X4 Pro tab for sync and backups.
On an iPad, or an iPhone Duo opened out, the app shows its main page and Pocket ScoZu (or Manage) side by side.
Something stuck in Pocket ScoZu? Tap Exit and open Read & Play again; your place is kept. Still stuck? Email less.of@thatmess.com, or use Share Beta Feedback in TestFlight while testing.