The ST-Link/v2 is an in-circuit debugger and programmer for the STM32 and STM8 microcontroller families. Due to its capabilities, it is an extremely popular device and clones are available from your preferred Chinese trading platform for less than 5 euros. I recently ordered a few of these cheap ST-Link/v2 clones for a new project. However, making them work was pretty frustrating. Read on to learn about the problem, the symptoms, and the (super) easy fix.