So you found a Debug port, now what.
This episode of DC612 will star an Oscilloscope old enough to drink and whatever UART and JTAG ports you bring it.
We will walk through the 101’s of an oscilloscope and how to use one. With our trusty Oscilloscope we can rely on voltage readings of UART or JTAG pins and start to deduce how to interface to the port by determining which are for transmit, receiving, power and ground.
The majority of the night will rely on YOU brining in various devices which we will read and debug, Live!
Examples given will closely resemble the reverse engineering of the Huawei HG533 as described by Juan Carlos Jimenez in the following blog post series.