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GA36-MB V1.x MicroSD Card Mount/MBR Fix Guide

Preamble

The Master Boot Record on the stock microSD card that comes with the GA36-MB v1.x is broken.

Master Boot Record (MBR) is a table at the very beginning of the microSD card that tells your computer about all the partitions on the card.

MBR takes up exactly 512 bytes, and must end with the two bytes 0x55 and 0xaa

Through some series of mistakes, negligence, or general incomptence, the manufacturer of the ga36mbv1.2 has set these two bytes instead to 0xc3 and 0x5a. This means no operating system will enumerate the table, and no partitions will be mountable.

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[product]
version = "100"
machine = "evb"

[platform]
eraseflag = 0
next_work = 2

[target]
boot_clock = 1008

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GA36-MB V1.2-20260416 [The latest(?) fake r36s]

So I got scammed.

I was trying to buy a proper r36s clone so I could play Stardew Valley in the bathtub. My mistake. Instead, I ended up with a "GA36-MB." Identical in every way from the outside, this little guy is quite the imposter. The CPU is allegedly not a Rockchip RK3326, but an Allwinner A33. From a performance perspective that's a little bit of a downgrade, but the real kicker is that the rockchip is a 64 bit chip and the allwinner is 32. More like allloser amirite. I'm not 100% convinced that this is the case though, I've seen a lot of conflicting information on this, so I intend to put the question to rest, though I'm hoping it's a rockchip.

(Spoiler alert: It's not a rockchip. It's a 32-bit allwinner with 512mb of ram.)

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#include "esp_lcd_panel_io.h"
#include "esp_lcd_panel_vendor.h"
#include "esp_lcd_panel_ops.h"
#include "esp_lcd_ili9341.h"

#define SPI_HOST         SPI2_HOST  // FSPI on S2

esp_lcd_panel_handle_t panel_handle;

void initialize_ili9341() {

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Hello!

I'm going to walk you through setting up the ESP-IDF inside of VSCode with Devcontainers.

This worked for me with the immutable fedora-based distro Aurora, though the steps should be similar for any distro.

For non-immutable (mutable?) linux distros you don't have to install the base ESP-IDF in a devcontainer, though I would still recommend it.

Installing the prerequisites

1. Install VSCode. In Aurora this is easy, just enable dev mode: ujust devmode.

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Steps to fix the "spawn udevadm ENOENT" error inside the ESP-IDF dev container.

1. Launch the dev container in vscode and open a terminal.
2. Open a terminal. Confirm that you're in the remote devcontainer terminal, and not on your host system.
3. apt-get update
4. apt-get install udev
5. Now in your devcontainer.json file, add this to the end of the dict:

  "runArgs": [
    "--device=/dev/ttyACM0",
 "--privileged"

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[plugin]

name="PolyTools"
description="Adds tools to the inspector to make editing a Polygon2d a little easier."
author="CodeZombie"
version="1.0"
script="polytools_plugin.gd"

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import time

class DELAY:
    def __init__(self):
        pass

    @classmethod
    def INPUT_TYPES(cls):
        return {
            "required": {

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#!/bin/bash

# 1. Start ydotoold in the background
# The '&' runs the command as a background job
ydotoold &

# 2. Save the Process ID (PID) of the background process
# '$!' is a special variable that holds the PID of the last backgrounded process
YDOTOOLD_PID=$!

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from PIL import Image
import torch
import numpy as np
import tempfile
import subprocess
import time

# NOTE: Ensure this is actually removing temp files.
# NOTE: Check to see if this works on linux.