For a long time, a very good Linksys WAG200G gathering dust in a corner, because was ANNEX B and still unusable on my PSTN line… until now! I made a risky decision, to flashing the router with a custom firmware, which convert it to ANNEX A functionality.
Searching the net I found two firmwares, menioned by Moho at adslgr.com forum, which are based on OpenWAG200 project, and convert annex a routers to b and vice versa.
- You can download the custom firmware for convert annex B to A
- You can download the custom firmware for convert annex A to B
WARNING: THIS IS EXPERIMENTAL, OPEN BETA SOFTWARE. YOU ARE USING THIS SOFTWARE AT YOUR OWN RISK. YOUR ROUTER MAYBE BRICKED!
To avoid bricking your WAG200:
- Language setting must be set to english prior to flashing the firmware
- Do not flash via remote internet connection or wireless connection – flash ONLY from wired LAN PC
- If flashing will take more than the progress bar is telling you, wait patiently for about 10 minutes before manually restarting the router….
If you are not so lucky and you got a bricked router, read Unbricking WAG354G tutorial from Marco Vedovati, his advice is likely to work and at WAG200.
hi 🙂
I have this router with annex B for ISDN and I need to crossflash it to annex A for PSTN/POTS. Is tehre any new safe/original firmware which I can use for this operation
Τhere is no original crossflash firmware, and as you know there will not be something from the Linksys. I personally tried the firmware mentionen here and succeeded without any trouble to convert my isdn router to pstn. Of course that is a risk you should take.