FAQ

Q: The module keeps resetting, and the recognition status flashes in the Device Manager?

A: This situation may be caused by a blank Flash leading to USB port instability. You can press and hold the BOOT button, connect the module to a power source, and then release the BOOT button. At this point, the module will enter download mode, and flashing the firmware (program) will resolve the issue.

Q: After downloading a program to the module and trying to download again, sometimes the serial port cannot be connected, or the flashing fails?

A: Long-press the BOOT button, connect the module to a power source, and finally release the BOOT button. At this point, the module will enter download mode, which can solve most download failure issues.

Q: No ESP option appears at the bottom during environment setup or project creation?

A: Press F1 in VSCode, search for Espressif IDF. If it shows as an untrusted extension, set it to trusted.

Q: After switching to the same ESP model, flashing the program results in runtime faults?

A: Please re-select the COM port and target driver object after switching the ESP, then compile and flash again.

Q: After the module is powered on, the recognized serial device and USB port keep resetting and restarting?

A: Check if the USB port supply voltage is lower than 5V. Generally, the USB port supply voltage should be above 4.9V. If it is lower than 4.9V, insufficient power supply may occur, causing the USB port to disconnect. In this case, please use a USB port with sufficient voltage.