!!!!! Restore 250 To Origional Firmware !!!!!

[MONKey]

Right, here goes. You will find all the files you need at the bottom of this post. You undertake this at your own risk and I am not responsible if you brick your modem doing this. You cannot use this guide for bricked modems.

STEP 1:

If your modem is stealth you will need to restore the bootloader first. If you already have a bootloader then you can skip to STEP 2.

To restore the bootloader, download the bootloader from the bottom of this post then use one of the SoftJTAG applications to connect to your modem via Com 1. I have included both as I found that some modems will only work with one or the other depending on what firmware you have on the modem so if one doesn't work the other will.

NOTE - If you get an error when trying to open SoftJTAG then you'll need to install these first:
.NET Framework 2.0
Visual J# Version 2.0

Once connected to the modem click on 'WRITE BOOTLOADER' and select the bootloader included with this guide.

Once it's flashed your now ready to go to STEP 2.

STEP 2:

Install Solarwinds TFTP Server

Copy 250.bin to C:\

Set network adapter to 192.168.100.10

Run Solarwinds

Goto 'FILE' > 'CONFIGURE' and make sure the root of your C:\ drive is selected and that you can see the 250.bin file

Next select the 'SECURITY' tab and click the radio button next to 'TRANSMIT & RECEIVE FILES' followed by the 'OK' button

Now connect your MAX Cable to the modem and double click on the 'AMBIT' Hyperterminal file included

Power up the modem and press 'P' within 2 seconds

Change the board IP to 192.168.100.1 and press 'ENTER'

Press 'ENTER' 4 more times

Select option 'D'

Set your TFTP server as 192.168.100.10 and press 'ENTER'

Type 250.bin and press 'ENTER'

The modem should now read the firmware image. You will be informed that the image does not have a standard header and asked if you still want to store it. Type 'yes' and press 'ENTER'

You will then be asked the sector at which to start the store. Type '0' (Zero not the letter, and press 'ENTER'

It will then start to flash the chip with the origional firmware. When it’s finished, it will ask you to store parameters to flash, enter 'no and press 'ENTER'

Reboot the modem, you now have an origional 250 modem

Follow adam's tutorial here to clone your MAC. But after you enter the following command to change your serial number:

type docsDevSerialNumber (followed by your mac, but in capitals and without the ':' (enter)

Enter this command which 'should' stop your modem updating to the latest locked FW

max_dload_tries 0

Then continue with adam's guide as usual.

Big thanks to Benchould as without his help this would not of been possible

And thanks to adam for the hack to do the origional firmware

MONKey @ DW

 

[MONKey]

Rest of files due to 5 file max limit

 

[K]

cheers monkay/// will try it out later

Good work

 

[No]

It will then start to flash the chip with the origional firmware. When it’s finished, it will ask you to store parameters to flash, enter 'no and press 'ENTER'

Just to reiterate on that part....

Make SURE you press N there, otherwise if you accept it with a Yes you will have a brick, as Monkey will tell you

 

[MONKey]

Just to reiterate on that part....
Make SURE you press N there, otherwise if you accept it with a Yes you will have a brick, as Monkey will tell you

LOL, yeah that's 100% right. Bricked my first attempt with this by putting yes.... :blushing:

Your not going to let that go are you

 

[Funkymunky]

YES!!!!!!!!!!!
WOOOOOOOOOOOOOOOOOOOOOO
Cheers my fellow Monkey

 

[lord-icon]

Wicked m8 !!


good job and thanks too all who helped !


Cheers


Icon

 

[Bulld0g]

Great work m8y gonna try this tomorrow.

 

[gentlex]

looks like a winner monkey ur just 26 bricks too late lol... got any webstar dumps

 

[MONKey]

Sorry m8, just the N*L 250 one.

 

[No]

looks like a winner monkey ur just 26 bricks too late lol... got any webstar dumps

26 Bricks...
You for real?!

If it makes anyone feel better...I had zero bricks trying :Hit: /smug

 

[MONKey]

I got 5 bricks, although 1 of them was my own fault...lol Should of put no at the end and stooooopidly put yes. As Benchould kindly pointed out to everyone.....

 

[TBC]

26 Bricks...
You for real?!

good grief lmfao

 

[K]

just confirming it works a treat
Im on a modem just done.. very easy 2 do.. 2 minute job aswell

cheers for the hard work

 

[adam]

hang on a sec monkey, are you saying you've sussed the infinite to ntl prob?

(glug, glug, glug )

 

[gentlex]

26 Bricks...
You for real?!
If it makes anyone feel better...I had zero bricks trying :Hit: /smug

yep tried flashing everything on it but the kitchen sink... i 'm gonna get a willem next week and start the whole process again lol..

 

[Magnu420]

yep tried flashing everything on it but the kitchen sink... i 'm gonna get a willem next week and start the whole process again lol..

what all 26 of them...... rather you then me m8

 

[gentlex]

what all 26 of them...... rather you then me m8

yep but saw quite a few possibilities while i was bricking them! so it might be well worth it... its all in the name oof science

 

[Bulld0g]

Just a quick question. Can you force the config when you put the origial firmware back on. If i try doing it on the Infinite the mac becomes blacklisted.

 

[MONKey]

With regards to forcing the config I guess that depends on whether your area has taken the dynamic config hit yet as forcing a config will then give you away.

Would be safer to not force on IMO.