Zoom H4n Pro Operation Manual page 136

If the H4n Pro (with an SD card) is connected to a computer (PC) that has access to the internet,
you can download H4n Pro software upgrades.
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PC
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PC H4n Pro
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PC H4n Pro
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Use a USB cable to connect the H4n Pro and a computer.
USB
Connect the H4n Pro to a
computer with a USB cable.
You can check the H4n Pro
version on the SYSTEM
(SOFTWARE) VERSION
screen.
Connect to a computer and select
STORAGE. The H4n Pro will be
recognized as an SD card reader
and can be used as one.
Follow the computer procedures to
disconnect from it.
Main system
version
You can work with
data on the SD card
in the H4n Pro from
the computer.
P.131
SYSTEM (VERSION)