You people are just too awesome, my puny mind cannot comprehend your greatness.
I am grateful, cheering, ecstatic!
Thank you!
My 2091 has been duly pwned.

I am no computer novice but have a 2091 from eBay with 3.01m and continually get the 'illegal image' message.

I have so far tried three different computers with XP, Vista and W7 and reset the router etc etc..

Anyone have any ideas please?

Thank you so much for your guidance on how to unlock a BT Voyager 2500v wireless router. I have had one as a spare for almost 2 years and had given up altogether on ever getting it unlocked.

Much appreciated.

i am having the same problem as Tony M, i have 2 2091's and its the ame for both. the firmware is the same on them. any info advice would be much appreciated:)

At a first guess I would say you have a fairly late version of the locked firmware which doesn't like the unlocked version. The unlocked version is 3.01t , but it might be that BT modified later versions of the firmware so that they couldn't be upgraded to the unlocked version.

There are two routes that spring to mind. It may be possible to fudge it using telnet. However, if that was the case I am fairly certain somebody would have publicised the fact years ago. I will give it a go though. The only other route would be to fudge the 3.01m firmware itself. Actually thats not strictly true. You could always try the dynamode firmware. I will see if I can find that. If that means nothing to you, the Voyager 2091 is also badged as a dynamode router. It may be possible that you can still use that firmware version.

As an afterthought, have you tried upgrading the firmware from the BT site itself? Instead of specifying a local file when you get to the firmware page, you can download automatically from the BT servers. The latest version is 3.30r. You could try doing that to one of your routers, assuming you still have access to a BT line. You may find the later version will accept the unlocked version or might even already be unlocked. BT released an unlocked version themselves commercially, just before they phased them out.

Hi

I've got a Voyager 2091 (firmware: 3.01q) which I've been trying to unlock but when i go install the new firmware nothing happens, I press the upgrade button and everything goes blank (except router menu sidebar) and nothing happens. Could this be the same problem as Tony M and Dave M are having? if so did was there any luck with the telnet fix?

Any info would be much appreciated.

Regards,
Joe

Ive used your tutorial to enable bridging on my 2110, it works pretty much ok 90% of the time, thanks. The problem is since ive upgraded to windows 7 and using Internet Connection Sharing in network connections on my mobile broadband(desktop), my bridge "Voyager 2110" shows as an unidentified network on my network card, Know of any way around this?? Thank You.

Why have you bridged a 2110?

As a complete newbie to this, this was a godsend!<br /> Little momemt where I thought I'd trashed it but otherwise... :-)

Now - just need a simular guide to tell me how to use a 2500v as a bridge!

Why do people want to bridge wireless routers? It completely knackers all their features. Just bridge the 210 and leave the wireless routers as functioning wireless routers!

When I try to download the firmware, I get a message stationg "Windows does not recognize this file type." Do I need to download a programme that will open and run the firmware?<br /> Thanks very much!

No, you don't run the firmware you have downloaded. Just follow the instructions above, and you see you actually end up uploading the file to the router itself. The router runs the file, not your computer.

I've got the modem unlocked and installed, it shows "Your voyager is ready to connect to broadband" but it can't actually connect. If I do trouble shooting and run diagnostic tests, atm oam f5 segment ping, atm oam end to end ping and the PPP server connection all fail. The broadband itself works on fine on my old windows vista computer using my old modem. Any suggestions? Thanks.

Resetting didn't make any difference. I'm based in London, and my isp is Orange. Thanks again.

Ok, well it was worth a shot. I asked because there is an area of the country (near Kingston Upon Hull) that has its own broadband settings, for reasons known only to itself. That won't be you though.

[p]I've seen the error you describe a couple of times before. I can't remember if I solved it or if I just ditched the router. Have you tried connecting the router to the main phone socket, rather than an extension? Also, using a different filter?

Unfortunately the USB port is for a PC only.

Hi - bought a Voyager 2091 from you a while back, just upgraded the firmware to 3.30r, see:<br /> http://www.voyager.bt.com/firmware_upgrades/btvoyager-one-click-fw-update<br /> I downloaded:<br /> http://www.voyager.bt.com/firmware_upgrades/cfe-voyager2091_btr-v330r_a2pb021g#0#

Its a locked version (to BT) - I thought I'd take the chance as I'd seen somewhere you said that BT commercially released unlocked versions at some point. Anyway, now I can't downgrade back to your firmware. Do you know any way of downgrading? I'm thinking along the lines of modifying the firmware to make it appear like a newer version, unless you (hopefully!!!) know of an easier way?

This is the output produced when doing the upgrade via TFTP and Telnet:

> tftp -g -f puzbie2091.fir -t i 192.168.1.2<br /> Done removing processes<br /> Checking Image tag.....<br /> User request image with tag 'V2091_BB' flash into board ID 'V2091_BB'<br /> Allocating 2552338 bytes for broadcom image.<br /> Memory allocated<br /> Total image size: 2552330<br /> Checking Image tag.....<br /> User request image with tag 'V2091_BB' flash into board ID 'V2091_BB'<br /> bufSize=[2552330]<br /> ftp: flashtotalSize=[8388608]<br /> ftp: curFlashLayoutVer=[5], FlashLayoutVer=[3]<br /> ***** You are not allowed to downgrade to the version not support flash/image size auto check on 8M bcm6348 ********

Tftp Image failed: Illegal image.

It is possible to get one firmware to pretend to be another. You have to take the header of one, and stick it on the body of another. There is a complication in that the header contains a checksum which you will have to recalculate. Thats how I did our unlocked firmware. I will dig out the article I used for it, as it gave much more detail.

THANKS!!! Got my BT Voyager 210 unlocked with the firmware upgrade and working with O2 after entering the settings given on the O2 site. Previous O2 box failed. They replaced it but we had a couple of days with no internet (agony!) so I wanted my old Voyager as a backup, which it now is.<br /> Couple of things worth knowing...<br /> After the upgrade I still had the BT logo top left and the firmware version did not change. I thought the upgrade had failed, but it worked because it was definitely locked to BT before.<br /> Also, maybe O2 specific, but although the DSL light comes on, the Internet light does not. Connection is perfect though, and showing ADSL2+ at the same sort of speed as the O2 router.

i've got 3 No Voyager 210 (firmware: 3.01q) which I've been attempting to unlock to but when i go install the new pusbie 210 firmware nothing happens, I press the upgrade button and everything goes blank (except router menu sidebar) and nothing happens. It is not showing the page telling me that it is upgrading, ive left it sitting for a few hours and still nothing, what could it be, ive done this for the 3 routers, all the same result, noting happens??

regards tommy

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