Hardkernnel ODROID-C2 User Manual page 28

Development boards such as the ODROID-C2, by definition, will at
some point either require an OS upgrade or a simple reflash to revert
to a known good base state.
USB microSD card adapter
need an additional device to perform the flashing process, which
is called a micro-USB card reader / writer. It should be compatible
with your host desktop or laptop (flashing computer) and with the
OS running on it. Above is shown one such USB3 device. If you
recall in the previous section, we recommended the placement of
a USB3 hub close to your free work area. This hub, if present, is
where you would connect the micro-USB card reader / writer. Now
you may see the point of the suggested hub location - basically, it
allows for frequent flashing of the boot media and its convenient
attachment to the C2. If all points in the connection are USB3 type,
you will get the fastest possible read / write speeds. USB2 compat-
ibility will allow one or more points to be of type USB2, but will result
in lower speeds.
for all subsequent activities. In the microSD receptacle of the USB
SD card reader / writer, look for the metal contact pins. Then, if you
are using a microSD card to flash the image, align the metal strips
of the microSD card to make contact with the pins. Insert the mi-
croSD card into the USB SD card reader / writer. The image below
indicates the alignment when using the Transcend USB3 microSD
card reader / writer model. The alignment may be different with
your reader / writer model.
you first need to attach the eMMC module to the eMMC/microSD USB
adapter. Place the eMMC module and the adapter such that the 34
pin female/male connectors overlap and gently press them together.
tact with the pins in the microUSB receptacle of the USB SD card
reader / writer. Insert the assembly by pressing firmly on the eMMC
module until it clicks into place.
23
ODROID C2 USER MANUAL
No matter which boot media you select for your C2, you will
Start by using the designated non-conductive free work area
However, if you are using an eMMC module to flash the image,
Align the metal strips of the microUSB adapter to make con-
Chapter 2