A: No. The Equus 3022 is a fixed-function reader. It cannot be flashed or updated. The manual states that the firmware is permanent.
Since the Equus support pages have been restructured multiple times, the Wayback Machine is a goldmine. Search for equus.com from circa 2010-2015, locate the support section for OBD2 readers, and download the archived . This is often the most complete version, including addendums for early CAN (Controller Area Network) vehicles. Equus-3022-Manual.pdf
A: No. Page 48 of the manual explains the "Contrast Adjustment" hidden menu: Turn the unit off, hold the "Left Arrow" key, and press "Power" to adjust LCD contrast. The manual states that the firmware is permanent
The Equus 3022 is a sophisticated device aimed at facilitating the diagnosis and analysis of vehicle systems. It is part of a line of products by Equus, a company known for its contributions to the automotive aftermarket industry, particularly in the areas of instrumentation and diagnostic tools. The device is engineered to interface with vehicles' onboard computer systems, allowing users to retrieve diagnostic trouble codes, monitor vehicle parameters, and perform various tests. This is often the most complete version, including
The is becoming rarer as manufacturers remove legacy product pages. Once you have a clean copy, do not rely on a single download. Follow these preservation steps: