Help Needed: Nucleo F401RE Board Issue with Shorted Analog Pin and Overheating

[nuhail]

I'm using the Nucleo F401RE board, and I was successfully reading analog signals from a 4-20mA signal generator for a project. I achieved this by connecting a 150-ohm resistor in series. However, the system suddenly stopped working, and upon investigation, I discovered that the LD3905 IC was overheating, and the microcontroller was also getting hot. Further examination revealed a short between the Analog pin PA1 (A1) and ground. I'm uncertain about the best course of action to get the board working again. Should I consider replacing the STM32F401 IC, or is there an alternative solution to resolve this issue?

[Andrew Neil]

probably best to replace the whole Nucleo board?

[TDK]

Before replacing the chip, might want to investigate why this happened so it doesn't happen again. Be aware of voltage limits on PA1.