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How to Unbrick ASUS G14 by Clearing the UEFI NVRAM (aka CMOS clear)

tl;dr

• ASUS G14 stores its UEFI (BIOS) settings in its 16MiB SPI Flash ROM (NVRAM region).
• The NVRAM region can be cleared by:
  • Dumping the flash ROM contents with flashprog (using an opensensor/pico-serprog or dword1511/stm32-vserprog flash programmer).
  • In the ROM dump, replacing the NVRAM region with the clean state from an EZFlash update file using UEFITool and UEFITool NE.
  • Writing the modified NVRAM region back into the Flash ROM.

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$ cd ~/.parsec
$ cat appdata.json
{"entry_symbol":"wx_main","hash":"9f38d4985d409c19b8ab27b5754ca0bac1ff4c78d6df30af08bc692882b0ef4a","so_name":"parsecd-150-83c.so"}

# Pin to 150-83c for HW Decoding (VA-API)
$ sudo chattr +i appdata.json parsecd-150-83c.so

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$ wget https://builds.parsecgaming.com/package/parsec-linux.deb
$ wget http://security.ubuntu.com/ubuntu/pool/main/o/openssl/libssl1.1_1.1.1l-1ubuntu1.5_amd64.deb

$ sudo dpkg -i libssl1.1_1.1.1l-1ubuntu1.5_amd64.deb
$ sudo dpkg -i parsec-linux.deb

$ parsecd

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The data scraped from 80 Eye-Catching Color Combinations For 2021!.

I don't own anything on this data.

copy($$("h3")
     .map(v => v.textContent)
     .map(text => ({text, colors: [...text.matchAll(/#[0-9A-F]{6}/g)].map(m => m[0])}))
     .filter(v => v.colors.length))

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#include <Esp.h>
#include <byteswap.h>

// Get the lower 3 bytes of 6 byte MAC
// aa:bb:cc:dd:ee:ff -> dd:ee:ff
// (3 byte shift, byte-swap and 1 byte shift)
uint32_t partialMac = __bswap_32(ESP.getEfuseMac() >> 24) >> 8;
String clientId = String("eee-") + String(partialMac, HEX);

uint32_t getChipId(){

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• Credit: https://www.mcucity.com/

• Credit: https://www.mischianti.org/

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保証外であり文鎮化の危険性もあります。くれぐれも自己責任で。

HR01のroot化(あるいはadbの有効化)

• 使用バージョン

システムバージョン:
01.00.00
ソフトウェアバージョン:
38JP_0_280

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minicap-python3-client

• The following are heavily based on the code from openstf/minicap#96.

minicap installation

Plan A: Use minicap-prebuilt

$ npm init -y
$ npm i -S minicap-prebuilt
$ ls node_modules/minicap-prebuilt/prebuilt/

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ISP

• There is an ISP port under the LCD module.
• From left to right, VCC SWCLK SWDIO GND.

Flashing via BMP

# Unlock
arm-none-eabi-gdb --quiet -ex "target extended-remote /dev/ttyACM0" -ex "monitor connect_srst enable" -ex "set non-stop on" -ex "monitor swdp_scan" -ex "att 2" -ex "mon erase_mass"

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KiCadでFusionPCBのPCBA(部品実装)を利用するメモ

確認環境

• Ubuntu 18.04 (bionic)
• KiCad 5.0.1

注文に必要なもの

• 実装図
• ピック&プレースファイル
• BOM(部品表)