PocketBook Mini - Manual (Page 15)

Getting Started 15
In addition, you can set automatic key lock or power off: go
to Settings > Advanced Settings > System > Lock device after
or Settings > Saving Power > Power off after respectively, and
set the idle time before locking keyboard or power off.
LOADING FILES
Connect the Device to the PC using micro-USB cable.
NOTE The Device should be kept on while transferring files.
You will be prompted to select USB mode: PC Link or
Charge either. Select PC Link . Operating system of com-
puter will detect Device’s storage as removable disk. Now
you can copy files to the Device using Explorer or other
file manager.
ATTENTION After copying files safely remove the Device before
disconnect the cable!