Can I use the USB service port on the back of my

The Vizio VO230E does not have network capabilities built in. The TV has built around 2009 before many TVs included either wired or wireless networking. The manual has the specifications on page 61; the manual is available here: http://cdn.vizio.com/manuals/kb/legacy/vo320emanual.pdf .

To get a wireless connection, you need to connect some sort of streaming device with wireless networking to the TV. This can be a computer, a ChromeCast and your phone or tablet, a Roku device or another streaming box. Plug the HDMI cable (or device plug) or the device into one of the two HDMI ports on the TV. Connect the device to a power source, if one is needed. (For devices that use a USB power connection, do not connect the USB power cord to the service port of the TV. Connect it to a charger.)

Since your choice of devices range in price from the ~$15 Roku Express to several hundred dollars for computers, depending on the specifications, you will need to decide which features/platforms you want.

I hope this helps.

Cindy Wells

Do other inputs work?

well there's your first problem right there !! fire sticks plug into a USB port not a hdmi port if your tv doesn't have a USB port then its not for using with a firestick

depends on what you plug into on back of tv
is it a dvd player with a hdmi cable ?
or is it a tv antenna cable ?
or is it AV cable ?
The input select on the tv menu must be the same as the port you plugged the cable into

DTV = Digital Tv
AV1 = Av input 1 the yellow plug type cable red and white audio plugs
HDMI1 = HDMI1 port
HDMI2 = HDMI2 port
HDMI3 = HDMI3 port
HDMI4 = HDMI4 port

component in looks very similar to av in so if using av cables
use av1 in port rather than component in .

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https://support.roku.com/.../208754808-Roku-Streaming-Stick...

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did you change the input source on the TV. What HDMI input did you plug into HDMI1 HDMI2 HDMI3 ? The input source has to match the port you put the hdmi cable into on the TV.
If no HDMI output on your media player use an adapter RCA to HDMI adapter. Here is an example of such a device
http://www.simplywholesale.com.au/catalog/product/view/id/2312/s/mini-rca-to-hdmi-converter-adaptor/?fee=1&fep=2312&gclid=CJzqubrhhsUCFZGWvQodjEoAZQ

Chromecase is a USB 'stick' type device with a USB interface. The RGB port is a video only port on the TV and not compatible with USB signal levels or the physical plug type.

No!

If your TV is newer, then it should plug into a USB port on the TV. If you aren't sure contact google for help.

depends on what input port you plugged into. HDMI1 HDMI2 HDMI3
the tv input select source has to match
I have a similar device plugged into HDMI3 so I select on the input source HDMI3 to see it on the TV.