RM500Q等移远5G模组解锁ADB

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前言说明

本文以RM500Q-GL为例，支持RM500Q，RM502Q，RM520N系列等USB和PCIE双模式的AB/AA模块，但RM500U不支持

开始解锁

  1. 静态编译AT工具sendat，如果你用其他AT工具或在Windows上通过USB转接板使用也可跳过这一步
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# 该工具使用命令说明：sendat 2 'ATI'  ，2表示 /dev/ttyUSB2，'ATI' 为要执行的AT命令
git clone https://github.com/ouyangzq/sendat
cd sendat/src/
gcc -c -o main.o main.c
gcc -c -o openDev.o openDev.c
gcc -o sendat -static main.o openDev.o -lpthread
strip sendat
sudo mv sendat /usr/local/sbin/

  1. 获取解锁用的密钥
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# 可直接在线运行：https://onecompiler.com/python/3znepjcsq	输入 12345678 时输出密钥 0jXKXQwSwMxYoeg
# 源码来自：https://github.com/iamromulan/qadbkey-unlock		执行 python3 qadbkey-unlock.py 后输入后面得到的 QADBKEY码

#!/usr/bin/env python3
import logging
import os
import argparse
import sys

def generateUnlockKey(sn):
    """
    @param sn: the serial number to generate an unlock key for
    """
    salt = "$1${0}$".format(sn)
    c = crypt("SH_adb_quectel", salt)
    return c[12:27]

def main():
        key = input("Enter the AT+QADBKEY? response: ")
        c = generateUnlockKey(key)
        print('AT+QADBKEY="{0}"'.format(c))

if __name__ == "__main__":
    logging.basicConfig(format='[%(levelname)s] %(message)s', level=logging.ERROR)
    try:
        from crypt import crypt
        main()
    except ImportError as e:
        logging.error(e)

  1. 解锁模块的ADB功能
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leux@h88k:~$ sudo sendat 2 'ATI'						# 查看当前模块信息
ATI
Quectel
RM500Q-GL
Revision: RM500QGLABR11A05M4G

OK
leux@h88k:~$ sudo sendat 2 'AT+QADBKEY?'					# 通过QADBKEY码获取密钥
AT+QADBKEY?
+QADBKEY: 68285734

OK
leux@h88k:~$ sudo sendat 2 'AT+QADBKEY="Qo40jAvgk310hQi"'			# 写入上步得到的密钥
leux@h88k:~$ sudo sendat 2 'AT+QCFG="usbcfg"'					# 获取默认的USB配置
AT+QCFG="usbcfg"
+QCFG: "usbcfg",0x2C7C,0x0800,1,1,1,1,1,0,0

OK
leux@h88k:~$ sudo sendat 2 'AT+QCFG="usbcfg",0x2C7C,0x0800,1,1,1,1,1,1,0'	# 切记不要生搬硬套，按照上面AT返回值填写，即将倒数第二个 0 改为 1 来开启ADB功能
leux@h88k:~$ sudo sendat 2 'AT+QPOWD=1'						# 重启模块保存应用

  1. 安装ADB程序并访问模块
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sudo apt install adb 或者 opkg install adb			# Armbian或OpenWRT安装ADB命令

leux@h88k:~$ adb devices					# 查看模块的ADB功能是否开启成功，有设备存在即已成功
* daemon not running; starting now at tcp:5037
* daemon started successfully
List of devices attached
28b39382        no permissions (missing udev rules? user is in the plugdev group); see [http://developer.android.com/tools/device.html]

leux@h88k:~$ adb shell						# 访问模块，如下问题可用后面方法解决
adb: insufficient permissions for device: missing udev rules? user is in the plugdev group
See [http://developer.android.com/tools/device.html] for more information

# 如何解决如上adb的提示：添加如下一行，然后重启系统生效
leux@h88k:~$ sudo vi /etc/udev/rules.d/51-android.rules
SUBSYSTEM=="usb", MODE="0660", GROUP="plugdev", SYMLINK+="android%n"

有何作用

  1. 可以刷入一个简单的Web界面，但仅能通过转接板的网口访问地址： 192.168.225.1，不能通过USB口访问使其有点鸡肋

  2. 默认的一些主要进程及配置文件位置

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/usr/sbin/lighttpd -f /data/lighttpd.conf
/usr/bin/qmi_ip_multiclient /etc/data/qmi_ip_cfg.xml
/usr/bin/QCMAP_ConnectionManager /etc/data/mobileap_cfg.xml d
/usr/bin/dnsmasq --conf-file=/etc/data/dnsmasq.conf --dhcp-leasefile=/var/run/data/dnsmasq.leases --addn-hosts=/etc/data/hosts --pid-file=/var/run/data/dnsmasq.pid --interface=bridge0 --except-interface=lo -z --dhcp-range=bridge0,192.168.225.20,192.168.225.60,255.255.255.0,43200 --dhcp-hostsfile=/etc/data/dhcp_hosts --dhcp-option-force=6,192.168.225.1 --dhcp-script=/bin/dnsmasq_script.sh

/etc # cat /etc/quectel-project-version
Project Name: RM500QGL_VH
Project Rev : RM500QGLABR11A05M4G_01.001.03
Branch  Name: SDX55
Custom  Name: STD
Package Time: 2021-08-12,00:02
/etc # cat /etc/os-release
ID="mdm"
NAME="mdm"
VERSION="202108112312"
VERSION_ID="202108112312"
PRETTY_NAME="mdm 202108112312"
/etc # opkg -v
opkg version 0.3.6 (libsolv 0.6.35)
/etc # systemctl --version
systemd 239
-PAM +AUDIT +SELINUX +IMA -APPARMOR -SMACK +SYSVINIT -UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS -KMOD -IDN2 -IDN -PCRE2 default-hierarchy=hybrid

  1. 开启原生IPv6支持
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# OpenWRT中添加开机脚本 vi /etc/hotplug.d/iface/90-ipv6gwadd 写入如下内容
# 最后在OpenWRT中将 WAN6 LAN口 中 DHCP服务器-IPv6设置内 的三个设置都设置为中继模式，WAN6口勾选指定为主接口

#!/bin/sh
[ "$ACTION" = ifup ] || exit 0
[ "$INTERFACE" = wan ] || exit 0
sleep 15s
ipv6_gateway="$(ip -6 route show default | awk '/default/ {print $3}')"			# OpenWRT中默认的IPv6网卡，wwan0
adb shell ip -6 route add $ipv6_gateway dev bridge0 metric 100 pref medium		# 在5G模块中添加IPv6路由
ip -6 route add $ipv6_gateway dev br-lan						# OpenWRT中添加IPv6路由

  1. 如何更新移远模块的固件
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# 更新固件不会丢失ADB功能，但会清除数据
unzip RM500QGLABR11A06M4G_01.200.01.200.zip -d /home/leux/RM500QGL
qfirehose -f /home/leux/RM500QGL

  1. 一些知识和自带的小工具
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leux@h88k:~$ adb pull <模块路径> <电脑路径>		# 拷贝模块数据到电脑

/tmp # mount -o remount,rw /				# 读写方式挂载根系统
/tmp # mount -o remount,ro /				# 恢复默认的只读挂载

# 推送静态编译的htop程序到模块
leux@h88k:~$ adb push /home/leux/htop-armv7-static /usr/bin/htop
/tmp # htop
Error opening terminal: linux.
/tmp # echo $TERM
linux
/tmp # mkdir -p /usr/share/terminfo/l/
leux@h88k:~$ adb push /usr/share/terminfo/l/linux /usr/share/terminfo/l/

# 端口 /dev/smd7 和 /dev/at_mdm0 和 /dev/smd11 似乎都可用，但要注意是否有程序在使用它们造成冲突
/tmp # echo -e 'AT \r' > /dev/smd7		# 执行AT命令
/tmp # echo -e 'ATI \r' > /dev/smd7

/tmp # cat /dev/smd7				# 可在另一个会话中查看正在执行的AT命令
AT
OK
ATI
Quectel
RM520N-GL
Revision: RM520NGLAAR01A07M4G

OK

# 启动 FTP 服务器
/tmp # tcpsvd -vE 0.0.0.0 21 ftpd /

  1. 其他AT命令
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AT+QCFG="usbnet",0				# 更改模块模式 0 QMI，1 ECM，2 MBIM，3 RNDIS

AT+QUIMSLOT?					# 查询SIM卡选用情况
AT+CPIN?					# 查询对应的卡槽是否识别到SIM卡
AT+QUIMSLOT=1					# 选定卡槽1
AT+CEREG?					# 检查模块是否注册到网络

AT+GSN 或 AT+CGSN				# 查询模组IMEI串号
863305040087529

AT+EGMR=1,7,"864640060210398"			# 更改模组IMEI串号

AT+QENG="servingcell"				# 查询当前服务小区信息
+QENG: "servingcell","NOCONN","NR5G-SA","TDD",460,11,759141002,353,757E0A,627264,78,3,-78,-11,19,1,44

AT+QTEMP					# 查询模块温度情况
+QTEMP:"qfe_wtr_pa0","57"
+QTEMP:"qfe_wtr_pa1","59"
+QTEMP:"qfe_wtr_pa2","55"
+QTEMP:"qfe_wtr_pa3","53"
+QTEMP:"aoss0-usr","55"
+QTEMP:"mdm-q6-usr","55"
+QTEMP:"ipa-usr","55"
+QTEMP:"cpu0-a7-usr","56"
+QTEMP:"mdm-5g-usr","55"
+QTEMP:"mdm-vpe-usr","55"
+QTEMP:"mdm-core-usr","55"
+QTEMP:"xo-therm-usr","54"
+QTEMP:"sdx-case-therm-usr","55"