v3.03c with BT ISP lock disabled
If you wish to use this router with a non-BT ISP and have accidentally upgraded the firmware (or purchased one with upgraded firmware) only to find the ISP is once again locked, this page is for you!
220v Firmware Download (BT locks disabled)
download bt voyager 220v firmware (locks disabled)
This firmware will load successfully even if you have upgraded the firmware on your 220v router (I myself did this).
1. Login to your router as normal using an internet browser.
2. Click advanced, then in the left hand menu select 'system' followed by 'upgrade'.
3. If the option exists at the top select 'from my pc' or if it just has a browse form box download and extract the file above and locate then run the file, wait a few minutes and your BT Voyager 220v router will have its unlocked firmware ready for use on your non-BT ISP!
Disclaimer
Although I have tried and tested this firmware many times without failure should you manage to damage or brick your router whilst performing the firmware upgrade available on this site we cannot be held responsible.