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[GigabitEthernet]

Ok guys. My post was featured on bt2700hgv.tripod.com recently. I have been doing some more digging and here is how to set the correct time when the clocks go back.

Go to the time zone page. MAKE sure a time zone is selected, then uncheck day light saving and click apply. Then, follow the steps above and the time will be correct for when the clocks go back.

[itinker]

Interesting!
Have flashed the router to Qwest 6.1.5.48 and tried to modify the time zone following your instructions without any joy.  I do see 'British Time' on the HTML tab, but then, no matter which procedure I follow, each time I hit the 'apply' button the configuration reverts, and I lose the 'British Time' input. Shame, 'cos I could do with the additional Wifi power uplift.  Any other suggestions?

[burakkucat]

The "best" solution I can think up would be for someone to:

(1) confirm that once a 2700HGV is physically opened up, there are the headers to which a serial terminal can be attached
(2) that the existing firmware can be downloaded to a computer disk
(3) the firmware is then forensically examined
(4) if 2Wire are not forthcoming with the source code to the Linux-on-a-chip therein (they should be, the Linux kernel is GPLv2), reverse engineer the relevant sections
(5) build a totally new firmware, with sensible features available to those who require them
(6) upload and test the new firmware
(7) write up suitable documentation and make the new firmware available

Anyone up for the challenge?

[Mick]

The "best" solution I can think up would be for someone to:

(1) confirm that once a 2700HGV is physically opened up, there are the headers to which a serial terminal can be attached

There is no serial adaptor in it.  There are some soldered terminals to which a J-TAG can be connected.  To buy one of these we're talking about thousands of GBP.  The CPU is I believe a MIPS and the JTAG is similar to this: http://www.mds.com/products/usb-jtag (can't find it on their website anymore).

(2) that the existing firmware can be downloaded to a computer disk
(3) the firmware is then forensically examined

I seem to recall that people who have looked at it said that it was some *BSD variant - not Linux.  If you google for it you may find the thread (can't recall the forum I saw this mentioned).

(4) if 2Wire are not forthcoming with the source code to the Linux-on-a-chip therein (they should be, the Linux kernel is GPLv2), reverse engineer the relevant sections

We're talking about VLIW set here.  Whoever is knowledgeable enough to code this would be probably gainfully employed by ... 2WIRE?  LOL!   

(5) build a totally new firmware, with sensible features available to those who require them
(6) upload and test the new firmware
(7) write up suitable documentation and make the new firmware available

Anyone up for the challenge?

Sure, if you can fund the development someone is bound to show up! 

[burakkucat]

Hmm, I don't know if I can finance that, Mick.    Have you seen the price of cat-food, these days?

Perhaps a fellow adventurer and owner of a silly-scope would be willing to give a good prod and poke to a 2700HGV . . .

My interest has been stirred up by the progress asbokid has made with the Huawei HG612, a.k.a. the "hobbled" OR Modem, provided to FTTC customers.

[Mick]

I will look for the thread when I get a minute.  Some guy shorted out the soldered terminals on the circuit board, placed it into bootstrap mode and was able to telnet into it and look at the filesystem.  However, there's hardly any commands he could run.  The firmware is locked down.

[burakkucat]

I will look for the thread when I get a minute.

That would be appreciated, thank you.

Logically, I think there must be a way that the firmware can be loaded to / unloaded from a EEPROM (or other non-volatile storage device) on the PCB.

[Mick]

I will look for the thread when I get a minute.

That would be appreciated, thank you.

Here are some URLs which look familiar:

http://www.the-scream.co.uk/forums/showthread.php?s=b842ef2a78c6140312dfbf70699bdbd5&p=208077#post208077

http://forums.whirlpool.net.au/archive/808533

I'm sure google can reveal more.

Logically, I think there must be a way that the firmware can be loaded to / unloaded from a EEPROM (or other non-volatile storage device) on the PCB.

You are logically correct.  However, to practically achieve this (or unbrick a bricked 2WIRE) you will need a very expensive JTAG. 

EDIT:  This guy seems to have made some inroads in determining the JTAG pin configuration, but the thread went cold:

http://open-wrt.ru/forum/viewtopic.php?id=22816

[burakkucat]

Thank you for collating those URLs, Mick. I shall carefully scrutinise them once my 270xHG[V[-C]] ideas reach the top of my ever changing "ToDo" list.

[iwish]

I can confirm that running Qwest firmware on my 2wire will not hold a connection for more than 5 mins on C&W LLU But running the bt firmware will