Jugurtha
Member
Hello,
I've been given that modem and was very interested in repairing it. It is "bricked" I think. All it does is blink. Resetting it doesn't do anything.
I searched for its firmware everywhere. I mean even D-Link doesn't have the file for that particular hardware version (T1), the others can be found no problem.
I opened the thing ..
Casing:
Model: DSL-2640U
FCC ID: KA2SL2640BT1
P/N: ISL2649UEME3.T1E
H/W: T1
F/W: ME_1.00
Inside box, on PCB:
3990/S1/V1.00/D-Link/Gaw5.6
T02A-4(dying gasp)Russia/Gaw
5.6T02-4-DL-R1B010-ME.EN
PCB:
Chips:
- BROADCOM:
-BROADCOM BCM5325EKQMG \n RG1030 P11 \n 1000410 1A:
Six port managed 10/100 ROBOswitch.
-BROADCOM BCM6333KFBG \n HG1041 P12 \n 101123 01:
SINGLE CHIP ADSL TO ETHERNET CPE ROUTER
-BROADCOM BCM4312KF86 \n TK1034 P11 \n 993752 82
- ESMT:
-M12L128168A- 7T \n AZT1E070G 1028
- MNC:
-MNC H2001DG \n 1040
I learned that Dying Gasp is a signal the router sends to the ISP when there is a current outage to tell him "The connection will be dropped, it's not because there's a bad link .. It's because the power is down".
It does that with some juice stored in capacitors. And it sends three messages, I think.
Anyway .. I discovered something interesting too. The device has a Serial Port to talk to me
Looking further, it seems it's a 3.3 volts, and it needs to be level shifted.
Anyway, but for now .. I wanted to have the firmware.
So I downloaded many, and by accident, one had a filename in the form of gaw5.6t02-4-dl-r1b030
So I searched for "gaw5.6t02-4-dl-r1b010" and luckily, I found
**broken link removed**
The file can be downloaded here :
ftp://ftp.dlink-me.com/DLink_ME/ADS...EN_whole_image(0222163812) (1).en_whole_image
D-Link has messy web-sites, not accessible I do not know why.
So now, I have to set up something in order to communicate with the box.
The web interface doesn't work, obviously .. And I think the firmware image has been corrupted. Maybe it won't even be able to talk to me, and I'll have to dump something in the nvram and whatnot.
Any insight ? Concerning the interface with the PC, etc.
I also discovered a great program, it's called Flashrom. (https://www.flashrom.org). It's from programming chips (Firmware hubs, etc..).
I've been given that modem and was very interested in repairing it. It is "bricked" I think. All it does is blink. Resetting it doesn't do anything.
I searched for its firmware everywhere. I mean even D-Link doesn't have the file for that particular hardware version (T1), the others can be found no problem.
I opened the thing ..
Casing:
Model: DSL-2640U
FCC ID: KA2SL2640BT1
P/N: ISL2649UEME3.T1E
H/W: T1
F/W: ME_1.00
Inside box, on PCB:
3990/S1/V1.00/D-Link/Gaw5.6
T02A-4(dying gasp)Russia/Gaw
5.6T02-4-DL-R1B010-ME.EN
PCB:
Chips:
- BROADCOM:
-BROADCOM BCM5325EKQMG \n RG1030 P11 \n 1000410 1A:
Six port managed 10/100 ROBOswitch.
-BROADCOM BCM6333KFBG \n HG1041 P12 \n 101123 01:
SINGLE CHIP ADSL TO ETHERNET CPE ROUTER
-BROADCOM BCM4312KF86 \n TK1034 P11 \n 993752 82
- ESMT:
-M12L128168A- 7T \n AZT1E070G 1028
- MNC:
-MNC H2001DG \n 1040
I learned that Dying Gasp is a signal the router sends to the ISP when there is a current outage to tell him "The connection will be dropped, it's not because there's a bad link .. It's because the power is down".
It does that with some juice stored in capacitors. And it sends three messages, I think.
Anyway .. I discovered something interesting too. The device has a Serial Port to talk to me
Looking further, it seems it's a 3.3 volts, and it needs to be level shifted.
Anyway, but for now .. I wanted to have the firmware.
So I downloaded many, and by accident, one had a filename in the form of gaw5.6t02-4-dl-r1b030
So I searched for "gaw5.6t02-4-dl-r1b010" and luckily, I found
**broken link removed**
The file can be downloaded here :
ftp://ftp.dlink-me.com/DLink_ME/ADS...EN_whole_image(0222163812) (1).en_whole_image
D-Link has messy web-sites, not accessible I do not know why.
So now, I have to set up something in order to communicate with the box.
The web interface doesn't work, obviously .. And I think the firmware image has been corrupted. Maybe it won't even be able to talk to me, and I'll have to dump something in the nvram and whatnot.
Any insight ? Concerning the interface with the PC, etc.
I also discovered a great program, it's called Flashrom. (https://www.flashrom.org). It's from programming chips (Firmware hubs, etc..).