Read your way
Installation
Check compatibility, install over USB and choose how books open from the Library.
Supported readers
For PocketBook Touch HD 3, Verse Pro, Era and InkPad 4 running compatible Linux firmware (6.10 or 6.11). Use the same download for all four models. These downloads are not for other models or Android readers.
Firmware checks and testing limits
These firmware versions passed software checks. This is not a full test of every feature on each physical reader. A different patch number may work when its firmware and system libraries are compatible.
| Reader | Firmware checked |
|---|---|
| Touch HD 3 · PB632 | U632.6.11.2001 |
| Verse Pro · PB634 | U634.6.10.3425 |
| Era · PB700 | U700.6.10.3209 |
| InkPad 4 · PB743G | U743g.6.11.1683 |
Install over USB
- Close CoolReader, connect the reader to your computer by USB and choose PC connection mode.
- If CoolReader is already installed, back up
system/bin/cr3-pb.app,system/share/cr3,system/config/cr3,system/state/cr3andsystem/config/extensions.cfgif present. These include settings, history and bookmarks. - Get the install ZIP from the Downloads page and extract it on your computer.
- Merge its
applicationsandsystemfolders into the root of the reader’s USB storage. Replace matching CoolReader files and keep the other files. - Safely eject the reader, then open Applications → CoolReader.
Your existing settings and reading history are kept. On a new installation, the welcome book opens first.
Open books from Library
To add CoolReader to Library’s Open with menu, connect the reader by USB again and edit system/config/extensions.cfg with a plain-text editor.
- The shared ZIP contains a comment-only template at
system/share/cr3/doc/extensions.cfg.example. If no configuration exists, createsystem/config/extensions.cfgwith entries appropriate to your firmware. - If the file already exists, add
cr3-pb.appto the comma-separated application list for each supported format you want to open. Preserve the existing readers and all other entries.
For example, EPUB and FB2 entries on firmware 6.11.2001 can look like this:
epub:@EPUB_file:1:eink-reader_with_blink.app,eink-reader_with_epub2.app,cr3-pb.app:ICON_EPUB
fb2:@FB2_file:1:eink-reader.app,cr3-pb.app:ICON_FB2The stock readers stay first in the list and remain the default. Leave PDF entries assigned to the stock PDF readers.
Save the file and safely eject the reader. In Library, long-press an EPUB or FB2 book, then choose Open with → CoolReader. The entry may appear as cr3-pb.app.
Update an existing installation
For Wi-Fi updates, connect the reader to Wi-Fi and open Settings → About & updates → Check for updates. In older versions, the update command may be directly under Settings.
- Confirm the offered download and wait for it to finish.
- Choose Restart now to install, or Later to install on the next normal launch.
Settings, bookmarks and history are kept. Back them up before upgrading. If your installation has no compatible updater, or cannot start, use the USB steps above. The older Touch HD 3-only package needs one USB installation of the current package.
Try your first book
Open a book with CoolReader, turn a few pages, then close and reopen it to check your saved place. The manual covers the menus, bookmarks, search and reading settings.
If it does not start
Check that the folders were merged into the reader’s storage, rather than copied inside an extra ZIP-named folder. Try a full reader restart. See troubleshooting if the problem continues. To return to your earlier installation, restore your backup.