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Caleb James DeLisle
3ae630b5b8
The ChinaMobile GS3101 has: 256MB RAM 256MB flash (TC58CVG1S3H) 1x MT7603 802.11 b/g/n - DISABLED 1x optical port On-die MT7530 switch with: - 1x gigabit ethernet port - 3x 100Mb ethernet ports 1x USB 2.0 port 1x telephone VoIP port 3 controllable LEDs 1 GPIO button (reset), 1 WPS button (not detected in GPIOs) UART header inside (solder required) 115200 baud 12v power (5.5mm x 2.1mm barrel connector) Installation instructions: You will need a USB stick 1. Reformat the USB stick as VFAT with MBR partition table. This is important, if it is GPT then it will silently fail to load. 2. Download openwrt-econet-en751221-chinamobile_gs3101-squashfs-tclinux.trx and store it in the USB stick. 3. Start the device with the vendor OS 4. Connect a cable and request an IP address - it will issue in 192.168.1.0/24 5. Use telnet to connect to the modem on 192.168.1.1 6. Login as root@2024 / system 7. Plugin the USB stick 8. cp /mnt/usb1_1/openwrt-econet-en751221-chinamobile_gs3101-squashfs-tclinux.trx /tmp/openwrt.trx 9. mtd -r -f write /tmp/openwrt.trx tclinux 10. You will lose your shell, look at the power light on the device, it should begin blinking and then go back to solid. You should NOT see any red light. 11. re-request an IP address 12. ssh root@192.168.1.1 13. You should be on OpenWrt now MAC address matches that of vendor OS but it is not the address on the label of the device. It is in a compressed xml file in the 'romfile' partition. WAN is this mac, LAN is mac+1 and 2.4Ghz WLAN is mac+2, there is no 5Ghz WLAN. Wifi Note: Of the devices tested, there were numerous upon which starting the wlan chip caused the CPU to hang. In the interest of avoiding bricked boards, the wlan is disabled in the DT. Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr> Link: https://github.com/openwrt/openwrt/pull/23533 Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>