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IDProjectCategoryView StatusLast Update
0007466NetworksHardwarepublic2025-07-22 13:21
ReporterDigitalMy 
PrioritynormalSeverityminorReproducibilityhave not tried
Status assignedResolutionopen 
Summary0007466: Tp-link MR200 v1 LTE router
DescriptionUse as redirect and ISP gateway

CPU: MediaTek MT7620A

Use TFTP installation method


Firmware Version:0.9.1 1.2 v004a.0 Build 180502 Rel.53881n
Hardware Version:Archer MR200 v1 00000001
TagsNo tags attached.

Activities

DigitalMy

2024-09-07 23:31

administrator   ~0014372

Last edited: 2024-10-21 16:50

View 2 revisions

Channel 10 n (40MHz)
Channel 44 n+ac (80MHz)
password default 18080346 (no username)



tp-link_mr200_v1_back.jpg (31,971 bytes)
tp-link_mr200_v1_back.jpg (31,971 bytes)

DigitalMy

2024-10-21 16:43

administrator   ~0014397

Last edited: 2024-10-21 16:46

View 2 revisions

Speedtest gives on client side internet link (over LTE 75%):
Download: 20 Mbps
Upload: 30 Mbps
Intermediate link MR200 router (access point) with client shows bitrate: 120 Mbit/s
> which is pretty normal result

DigitalMy

2025-07-09 22:25

administrator   ~0014459

Last edited: 2025-07-10 03:38

View 4 revisions

Got another device with vendor SIM lock
Firmware Version:0.9.1 0.0 v004a.0 Build 160118 Rel.50197n Hardware Version:Archer MR200 v1
Uploaded original firmware Archer MR200(EU)_V1_180502
After upload Firmware Version:0.9.1 1.2 v004a.0 Build 180502 Rel.53881n

Modem: Firmware Version: 1.0.0 Build 160506 Rel.1047n
Hardware Version: MR200(UN) 1.0 v1.0

Flash chip on bottom MXIC MX25L6433FM2I-08G =8MB need to be replaced before software installation in OS...



MR200v1_board.jpg (21,651 bytes)
MR200v1_board.jpg (21,651 bytes)

DigitalMy

2025-07-10 01:02

administrator   ~0014460

Last edited: 2025-07-13 14:13

View 13 revisions

OpenWRT:

Router has TFTP client with IP address 192.168.1.1 started in case powered on with WPS button pressed for 15 second
Router reads TFTP Server with IP address 192.168.0.66 mask 255.255.0.0 - set this to computer LAN

Add TFTP feature to Windows 11 in PowerShell:
Dism /online /Enable-Feature /FeatureName:TFTP /All
Upload new OpenWRT to MR200v1:
tftp -i //192.168.1.1// PUT ArcherC2V1_tp_recovery.bin

Or start Tftpd64.exe and specify
Current directory - is folder with ArcherC2V1_tp_recovery.bin file there.
Server interface - the one with IP address 192.168.0.66
after upload basic lede and reboot open
http://192.168.1.1/cgi-bin/luci/admin/system/flashops/sysupgrade
and flash openwrt-23.05.4-ramips-mt7620-tplink_archer-mr200-squashfs-sysupgrade.bin
After login there is only 600KB space left
Found flash space left below minimum and failed installing software with filesystem read-only lock.
mtd unlock rootfs_data
mtd -r erase rootfs_data
Downgrade to smaller OS https://downloads.openwrt.org/releases/22.03.7/targets/ramips/mt7620/openwrt-22.03.7-ramips-mt7620-tplink_archer-mr200-squashfs-sysupgrade.bin
After login there is only 1030KB space left

Try install software:
luci-app-openvpn (100KB without translations)
openvpn-openssl (250KB approximately)
openssh-sftp-server (50KB approximately)
kmod-usb-net-rndis - for wan modem
adb - for Android modem

After basic configuration OpenWrt 22 can see usb0 modem interface.
DMZ IP in this WAN must be 192.168.225.100

DigitalMy

2025-07-13 14:11

administrator   ~0014464

Last edited: 2025-07-22 13:21

View 5 revisions

LTE modem configuration
located in mini pci-e port
uses USB line
it has an ARMv7 processor with 30MB of RAM

Can set up modem using adb or
web page http://192.168.225.1/login.html password "admin"
but: do not save any non-modem settings in web: it may damage configuration of OpenWrt.
adb shell
cat /misc/imei

Can change IMEI:
 echo "mynewimei" > /misc/imei

Firmware for modem is a part of Tp-link original file "Archer MR200v1_0.9.1_1.2_up_boot_v004a.0 Build 180502 Rel.53881n.bin" starting from 0x7d0200 byte

Original modem in Tp-link MR200v1 is Qualcomm mdm9225
Possible modem replacement: Huawei ME909s-120 (tested by others)
Try replacement with cat.9 modem like L850-GL with M.2 NGFF adapter, because cat.16 modems have 4pcs antennas

Alternative way to see web page using adb shell
in android:
chmod +x /WEBSERVER/www/cgi-bin/*
httpd -h /WEBSERVER/www/
in OpenWrt:
adb forward tcp:8880 tcp:80
in PC:
browser: http://192.168.225.1:8880/QCMAP.html (user/pass: admin/admin)



MDM9225.jpg (70,464 bytes)
MDM9225.jpg (70,464 bytes)