Dexif dexif

## X3-GPIO.md

      
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                dexif
                / X3-GPIO.md
            
            
              Created
              February 17, 2026 09:29
                — forked from CrazyCoder/X3-GPIO.md
            
              
                Xteink X3 GPIO (based on 5.0.3 firmware analysis)
              
          
    Xteink X3 GPIO Pin Mapping

Complete GPIO Map


GPIO
Function
Direction
Evidence


0
I2C SCL
Bidir (OD)
Wire.begin(sda=20, scl=0, freq=400000) in sub_42004146


1
Button ADC (primary)
Analog In
analogRead(1) in sub_42006294 — 4-button resistor ladder


2
Button ADC (secondary)
Analog In
analogRead(2) fallback in sub_42006294 — 2 buttons


3
Power/Wake input
Digital In
digitalRead(3) in sub_4200D0B6, triggers power-on sequence


## ubuntu-touch_owncloud-sync_contact-calendar.sh
#!/bin/bash
# ---------------------------------------------------------------------------
# Ubuntu Phone - Sync Owncloud Contacts & Calendar Account
# Carddav & Caldav.

# Tested on : Ubuntu-touch vivid - ubuntu-touch/rc-proposed/bq-aquaris.en/vegetahd/
# Last edit : 2015/10/07.
# Author : Romain Fluttaz, boTux.fr, <romain@botux.fr>

# ============= [ Configuration ] ============= #

## MenuBackIcon.qml
import QtQuick 2.2

Item {
  id: root
  width: 24
  height: 24

  Rectangle {
    id: bar1
    x: 2

## index.html
<!DOCTYPE html>
<html>
    <head>
        <style>
          html {
            width: 100%;
            height: 100%;
          }

          body {
GPIO	Function	Direction	Evidence
0	I2C SCL	Bidir (OD)	`Wire.begin(sda=20, scl=0, freq=400000)` in `sub_42004146`
1	Button ADC (primary)	Analog In	`analogRead(1)` in `sub_42006294` — 4-button resistor ladder
2	Button ADC (secondary)	Analog In	`analogRead(2)` fallback in `sub_42006294` — 2 buttons
3	Power/Wake input	Digital In	`digitalRead(3)` in `sub_4200D0B6`, triggers power-on sequence
	#!/bin/bash
	# ---------------------------------------------------------------------------
	# Ubuntu Phone - Sync Owncloud Contacts & Calendar Account
	# Carddav & Caldav.

	# Tested on : Ubuntu-touch vivid - ubuntu-touch/rc-proposed/bq-aquaris.en/vegetahd/
	# Last edit : 2015/10/07.
	# Author : Romain Fluttaz, boTux.fr, <romain@botux.fr>

	# ============= [ Configuration ] ============= #
	import QtQuick 2.2

	Item {
	id: root
	width: 24
	height: 24

	Rectangle {
	id: bar1
	x: 2
	<!DOCTYPE html>
	<html>
	<head>
	<style>
	html {
	width: 100%;
	height: 100%;
	}

	body {