SN: MLJX201601B11918XXXXX
2AGA6-OZA3ULTRA
Firmware Upgrade Instructions
To update your OontZ Angle 3 ULTRA from your Windows PC, you will first need to check the serial number
on your OontZ Angle 3 ULTRA to determine which update to download and install on your Windows PC.
Step 1 : On the bottom side of your speaker locate the serial number as shown in the image below:
Check if the first 16 characters of the 21 character serial number on your speaker match either one of
the below two serial numbers:
MLJX201601B11918xxxxx MLLS201601B11733xxxxx
Note: The xxxxx shown above at the end of the serial number represents the 5 unique numbers to
your speaker and can be ignored.
If the first 16 characters from of either serial number do NOT exactly match your speaker, please click
the download button below for the speaker update 3.1.2 and select ‘Open’ from the options provided
by your browser.
If the first 16 characters of either one of the serial numbers ‘MLJX201601B11918xxxxx’ or
‘MLLS201601B11733xxxxx’ matches your speaker, please click the download button below for the speaker
update 3.1.3 and select ‘Open’ from the options provided by your browser.
Please proceed to Step 2 on the following page >
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