Thg3000 Router Firmware Link

Many THG3000 units ship with a default Wi-Fi password printed on the sticker, but the web admin password is either the same or admin:admin or vodafone:vodafone depending on firmware revision. The root account may have no password over UART.

Cause: Corrupted NVRAM settings from the old firmware. Solution:

UART pads are present on the PCB (often near the SoC). Pinout (typical): | Pad | Signal | |-----|--------| | 1 | TX | | 2 | RX | | 3 | GND | | 4 | VCC (3.3V – do not connect) | thg3000 router firmware

Baud rate: 115200 8N1

During boot, U-Boot spits out logs and offers a recovery shell (press any key to interrupt). Many THG3000 units ship with a default Wi-Fi

Use QEMU system emulation with a custom DTB (device tree blob).

# Extract kernel and rootfs
$ dd if=firmware.bin of=kernel.bin bs=1M skip=4 count=4
$ dd if=firmware.bin of=rootfs.bin bs=1M skip=8

This write-up is for educational and authorized security research purposes only. Unauthorized modification of router firmware may violate laws and warranties. This write-up is for educational and authorized security
Updating the firmware of your THG3000 router is a straightforward process, but it requires careful attention to avoid any issues:
Cause: Browser cache or HTTP port change.
Solution:
If you need real control (VPN, VLANs, custom firewall, SQM QoS), use the THG3000 only as a modem.