shauninman

/dts-v1/;

/ {
	compatible = "rockchip,rk3566-miyoo-355-v10-linux\0rockchip,rk3566";
	interrupt-parent = <0x01>;
	#address-cells = <0x02>;
	#size-cells = <0x02>;
	model = "MIYOO RK3566 355 V10 Board";

	ddr3-params {

shauninman

/dts-v1/;

/memreserve/	0x0000000048000000 0x0000000001000000;
/memreserve/	0x0000000048100000 0x0000000000100000;
/ {
	model = "sun50iw10";
	compatible = "allwinner,a133\0arm,sun50iw10p1";
	interrupt-parent = <0x01>;
	#address-cells = <0x02>;
	#size-cells = <0x02>;

shauninman

DIR
/sys/devices/virtual/disp/disp/attr

STOCK       DEFAULT   FILE                  DEFAULT     RANGE
Contrast      5       enhance_contrast       50           0 - 100
Saturation    5       enhance_saturation     50           0 - 100
Color Temp    5       color_temperature       0         -50 -  50
Exposure      5       enhance_bright         50           0 - 100

shauninman

(This was originally written January 11, 2022 for the Miyoo Mini, the result was the precursor to Onion)

How to patch out Retroarch from MainUI with https://cutter.re

1. Make a backup of your MainUI, just in case (changes are saved instantly and not undo-able!)
2. Open Cutter and select your MainUI binary and click the Open button
3. Make sure "Load in write mode (-w)" is checked and click the Ok button
4. Once it opens (it will take about 25 seconds), select the Strings tab and enter "createMenu" in the Quick Filter input
5. Select the only/first result and press X (or control-click and select Show X-Refs)
6. Double-click the only function (in the 20220110 update named "fcn.0003100c" but the name may change because it's just an address within the compiled binary)

shauninman

#!/bin/bash
set -x

HERE=$(dirname "$0")
cd "$HERE"

SYSTEM_SIZE=368
SYSTEM_PART_START=32768
BOOTLOADER="u-boot"
DISK_LABEL=msdos

shauninman

#/bin/bash

# NOTE: requires dtc to be somewhere in your path

cd "$(dirname "$0")"

# const
DT_NAME=device
DEV_PATH=/dev/mmcblk0
BOOT_OFFSET=$((16400 * 1024))

shauninman

| HOST for me is macOS
| DOCKER for me a debian:bookworm-slim docker image with device-tree-compiler installed (among other things) 
| these offsets and values are specific to the 40xxH
| /dev/rdisk4 was the (raw) SD mount point at time of testing
|	  double check DiskUtility.app and update path accordingly
| boot_package offsets from https://github.com/knulli-cfw/knulli.org/blob/main/docs/guides/h700-firmware-extract.md

HOST: extract the boot_package.img and dupe

	sudo dd if=/dev/rdisk4 of=boot_package.img bs=1024 skip=16400 count=20464

shauninman

#!/bin/sh

# edit ROM path (relative to root of SD card)
# and save to the /.userdata/<device> folder
ROM="/Roms/Game Boy (GB)/Dr. Mario (World).gb"

#######################################
# 
# NO NEED TO EDIT BEYOND HERE UNESS YOU
# REALLY KNOW WHAT YOU'RE DOING...

shauninman

Note: Commands that are prefaced with one backtick (`) are entered directly into the terminal. Commands with two backticks (``) are entered into the gdisk prompt. Each step is explained in English with the corresponding terminal command below it. This was done on MacOS 12.3 Monterey with an M1 processor but should work without problem on any modern MacOS, M1 or otherwise. You will end up formatting the ROM partition completely, so it is best to do this before you waste time copying any rom files over.

1. Back up the CFW folder from the ROMS partition. If the image named both partitions "No Name" rename the one with the CFW folder "ROMS" and the other partition "MISC" before starting this. This can be done in the Finder just like renaming any other file.

2. Install gdisk using homebrew. If you don't have Homebrew already installed please visit https://brew.sh/ for details on how to install it.
`brew install --cask gdisk

3. Use diskutil to get the list of mounted drives and look for the micro SD card path, m

shauninman

/* bye-bye brands */
div[aria-label~="Timeline"] div[role="group"]+div{background-color:white;position:absolute !important;top:-24px !important;left:-64px !important;margin-top:0 !important;width:calc(100% + 64px);height:calc(100% + 24px);}
div[aria-label~="Timeline"] div[role="group"]+div *{display:none !important;}