ESP32-CAM-MB Upload Error: "Failed to write to target RAM (Checksum error)"

[coolpixle]

Hi everyone,

I recently bought an ESP32-CAM-MB board and I'm having trouble uploading code to it using the Arduino IDE. I'm trying to flash the default CameraWebServer example, but the upload consistently fails at the same spot.

Here is the full error log from the output console:

Code: Select all

Sketch uses 1072521 bytes (34%) of program storage space. Maximum is 3145728 bytes.
Global variables use 69456 bytes (21%) of dynamic memory, leaving 258224 bytes for local variables. Maximum is 327680 bytes.
esptool v5.3.0
Serial port COM26:
Connecting.....
Connected to ESP32 on COM26:
Chip type:          ESP32-D0WD-V3 (revision v3.1)
Features:           Wi-Fi, BT, Dual Core + LP Core, 240MHz, Vref calibration in eFuse, Coding Scheme None
Crystal frequency:  40MHz
MAC:                20:9b:a9:73:99:5c

Uploading stub flasher...

A fatal error occurred: Failed to write to target RAM (result was 0107: Checksum error)
Failed uploading: uploading error: exit status 2

Does anyone know what causes this checksum error during the stub flasher upload, and how I can fix it?

Thanks in advance!

[Sprite]

That is quaint, I've never seen it stop at that point. Perhaps use a lower baud rate, or a different USB-serial device.

[coolpixle]

I dont have another USB-serial device and what do you mean with lower the baud rate?

[Sprite]

Seemingly Tools -> Upload speed in the Arduino environment.

[coolpixle]

I lowered it and it did the same error