The D-Link DSL-274xB is a four port wireless router with integrated ADSL2+ modem. The x differentiates the ADSL Annex supported; 0 is Annex A and 1 is Annex B.

As with all BCM63XX devices, there is no support for the integrated DSL modem.

1. → obtain.firmware
2. → Install OpenWrt

These devices can be easily flashed through the generic CFE recovery webserver:

• Press and hold the reset button
• Power on the device
• Wait until the power LED turns solid red (after about 30 seconds)
• Browse to http://192.168.1.1/
• Upload the image

See generic.sysupgrade.

Numbers 0-3 are Ports 1-4 as labelled on the unit, in reverse order (so internal port 0 is external 3, 1 is 2, etc).

See generic.failsafe

Note: This will void your warranty!

For Revision C2 (and probably C3):

• Remove the screws under all four rubber feet
• Lift the top case (it should not provide much resistance)

For Revision F1

This model is tricky to open as it has a total of seven plastic clips holding the top. You might need brute force, and there are chances you will damage your case.

• Remove the screws under all four rubber feet
• For the front clips: using two flat head screw drivers push bottom "grill" out until you can lift the top slightly
• For the front side clips: using a flat head screw driver push the bottom out until it clicks (slide it in from the corner, then work yourself to where the clip is)
• For the back side clips: these should be easy now with some wiggling

See port.serial for general information about the serial port, serial port cable, etc.

The Pinout is (with the Ethernet ports on top):

→ generic.debrick

For reverting to the original firmware, obtain the firmware from D-Link and flash it using the OEM easy installation.