In your e-reader, go to Settings > Software > Software version.
The software version will appear in the following form: V6188.8.131.522.
- The letter V indicates that it is a specific piece of Vivlio software.
- If there is another letter, this will be a generic piece of software from the manufacturer PocketBook or from TEA.
- The three first numbers indicate the e-reader’s model.
- 627: Touch Lux 4
- 632: Touch HD Plus
- 740: InkPad 3