FAQ
Q: I purchased a 4M/16M version, but after flashing the MicroPython firmware, why is only 1.4M of memory available?
A: The official firmware has not been updated; it is still the firmware compiled for 2M of memory. Please use the corresponding firmware provided below:
Q: What common issues and precautions might be encountered during use?
A: Please refer to the official manual: Pico FAQ
Q: Abnormal readings when an IO pin is set as input?
A: The pins configured as inputs must be initialized to either a high or low state.
Q: Device not recognized?
A: Try using a different USB cable or USB port and reconnect.