Downgrade Firmware
The following is a collection of firmware that will allow you to roll back to an older revision that the official firmware from DLink will not allow.
Firstly, here is the instructions as provided by DLink Germany (note that is refers to the DIR855 but is the same process for other models):
Solution if a NA firmware from dlink.com was installed in the router and
the latest EU firmware cannot be installed any more.This firmware / software may be used only for the specified product, you pay particular attention to
the hardware revision, for example: H / W B2, or Rev. A3!
The use of another / similar product could disable the product and leads
void your product warranty.DIR-855 Firmware Restoration of EU
Please install the firmware on a LAN connection, not via wireless.
- Launching Web browser
- Configuration of the router site (default would be 192.168.0.1)
- At the top click on Tools
- Turn left on firmware
- Click on Search and browse
- Select extract firmware file “dir from 855NA_FW122NAB05ForDowngrade.bin”
- Click on Apply- Takes about 3 minutes then the upgrade once it is finished, returns to the home screen of the configuration interface.
- After the firmware is installed in the router, install the latest EU firmware on the router, which can be downloaded from the website or via ftp.dlink.de www.dlink.de.
- Configuration of the router site (default would be 192.168.0.1)
- At the top click on Tools
- Turn left on firmware
- Click on Search and browse
- Select from the EU extract firmware file
- Click on Apply- Takes about 3 minutes then the upgrade once it is finished, returns to the home screen of the configuration interface.
Thus, the upgrade is completed.
After installing the firmware, perform the DIR-855 consider installing a factory reset:
- When turned on and booted DIR-855 hold the reset button for 5-10 seconds
After the factory reset, you configure the DIR-855 please hand again.
Please install any configuration file to another (older) firmware version in the DIR-855th
Here are the file hosted on DropBox:
DIR-855 Rev A
DIR855A2_122NAB05-DownGrade.zip Provided by DLink Germany
DIR-655 Rev A
DIR655Ax_FW134WW_Down_from1.35NA.zip 1.35 downgrade provided by T3gger
dir655_fw_reva_121b08.zip Provided by DLink Germany
dir655A4_FW141B10RU-NAtoEU.zip This converts routers from NA to EU.
DGL-4500
DGL4500_115 Provided by www23:)))
DIR-628
DIR628_112 Provided by www23:)))
To clarify my previous post I did attempt to use the firmware provided by a link on this site to try and downgrade my 855A2. Are there any other ways to unlock the firmware on DLink Routers and in particular the DIR 855 A2?
Hey there;
I think there is a 1.23 downgrade firmware available. Give me a day or 2 to dig it up.
Thanks, that would be a big help.
Looking for some help. Upgraded my 855 A2 to Firmware 123WW (Build 174) in an attempt to solve a problem with the 855 randomly rebooting. This did not fix the problem and I can no longer downgrade or change the firmware. I have viewed all of the posts on dlinks forum and here and I have tried all of the easy things. (i.e. reset to factory defaults, rebooting, changing firewall settings etc.,etc.) Nothing seems to solve my problem. Does anyone have any suggestions?
ok so do i need to convert my US router to EU then flash the downgrade 1.35 then flash german 1.21? Im an idiot and need an idiot guide to doing this. Wont the internals be in german if you flash a german firmware?
I’ll take a look and let you know what I find out. Thanks!
Thanks for your prompt reply. I was aware of that post, but, unfortunately, it does now work with this version/FW. A couple of years ago I bought two DIR-615s because they had detachable antennas. Of course when they arrived they were a new version that was not detachable. So I couldn’t use them, and it looks as if I can’t use these. The people at D-Link act as if I’m the problem and not them. The DIR-655 CAN be used as a bridge, but it is buried somewhere in the code, and they won’t let us know where!
To be honest, I can’t understand why dlink insist on using UBICOM as there hardware/software platform, it is just unreliable. Stick to Broadcom implementations. You have a lot more options and stability.
Hi All,
Thanks for your interesting comments. I just bought two DIR-655s, Ver B1, FW 2.00 NA. I bought them because I wanted to use one as an AP (one building to another). It seems D-Link changed the 655 firmware so that you now have to use cat cable to connect the two routers. They used to be able to connect wirelessly (bridge) but that function is hidden. My old US Robotics (5461) bridge wirelessly but are too slow. Will any of the older FW versions resore the bridge function? I hope to get an answer soon otherwise I will have to return these units.
Rev. B router cannot downgrade. These are for Rev Ax routers. However you can try to see if this trick works: http://forums.dlink.com/index.php?topic=4542.15
If not, you are out of luck.
Thanks for your prompt reply. I was aware of that post, but, unfortunately, it does now work with this version/FW. A couple of years ago I bought two DIR-615s because they had detachable antennas. Of course when they arrived they were a new version that was not detachable. So I couldn’t use them, and it looks as if I can’t use these. The people at D-Link act as if I’m the problem and not them. The DIR-655 CAN be used as a bridge, but it is buried somewhere in the code, and they won’t let us know where!
Hi there,
You still might have some options.
Option one – Do they have wireless client mode? You can set one as access point and the other as a client.
Option two – Do they have WDS mode? If so, this will do the job well enough and is probably the preferred option.
I’ll take a look and let you know what I find out. Thanks!
Hi
I was able to downgrade 1.35NA to 1.21 but I am unable to downgrade to 1.04 my dir-655 a4 rev came with 1.20eu.
Any ideas? Want 1.04 to be able to use wds
A4 revision router cannot downgrade to ver. 1.1x firmware or lower. It a hardware limitation.
So the german firmware downgrade wont work then? Am i basically screwed?
No, the downgrade firmware should be on this site. Just flash the NA downgrade firmware and then once completed, flash the desired firmware.
Does it matter that my router is US? I live in the states. Thanks
Hi Sorry for the late responses. It does actually make a difference. If you go through some of my old posts, from vert 1.21 (I think), you cannot switch from country to country firmware.
The difference between countries, is what channels are available to select from on the wireless.
No it doesn’t. I have a US DIR-655 router myself. I have went back and forth on different version firmware from different region. EU from Germany, WW from Russia, US firmware as well. However some channel may not be available for selection on some EU firmware. All the firmware can be obtain from different region of D-Link website. They are official, you shouldn’t be worry.
I flashed to the latest 1.35NA firmware and now I get random wireless drops. I was told this is an issue with the 1.35NA firmware. I was told to go back to 1.21
Can you please tell me how to do this? I don’t want to brick my router. Thanks!
Visit http://www.dlink.de , Germany D-Link has an official firmware allow to downgrade to 1.21 directly.
Im confused,i have a DIR-655EU Rev:A2 that was on FW:1.35NA which i would like to downgrade to FW:1.21EU.
I have successfully downgraded to FW:1.34WW but it will not let me downgrade using the NA to EU converter.
Also my Hardware version now says A4 which it is actually A2.
Can someone please tell me what im doing wrong
Thanks:)
Firmware sometimes can’t accurately tell your hardware version. Look at the back of the router, it will tell you which rev. it is. You can downgrade to EU firmware by visiting http://www.dlink.de , there’s an official firmware from D-Link Germany that allow you to downgrade to 1.21EU directly.
ok so do i need to convert my US router to EU then flash the downgrade 1.35 then flash german 1.21?
I’ve recently decide to download the 1.21 b.08 NA downgrade firmware from Dlink Germany to downgrade from 1.34NA, which worked without a problem. Stupid as I am, hope EU firmware would be better, upgraded to the 1.35 EU firmware (also from Dlink Germany) and now facing issue, but no longer can downgrade using the same 1.21 b.08 eu downgrade firmware… Any suggestions?
Hi there, I have updated the downgrade page to include a file that “SHOULD” allow you to then downgrade the 1.35EU firmware on the DIR-655.
Let me know how you go.
Thanks for the reply… Later that day, I’ve actually decide to visit the Russian DLink FTP and download the 1.21WW and it downgraded without any issue. Now back at 1.21 B.08 EU… I have no idea why 1.2x firmware is much faster in wireless performance…
Any chance for Rev. A4 to use 1.1x firmware?
I’m a little confused. I have a DIR-655 flashed to 1.35NA and am having troubles also. I see that there is a downgrade flash “DIR655Ax_FW134WW_Down_from1.35NA.zip 1.35 downgrade provided by T3gger”, if I flash down, do I than need to flash up to something else, or can I just run the downgrade flash? Thanks!
Hi;
Downgrade firmware is just the same firmware as the original untouched version with one modification. The original firmware, once installed, will not allow you flash back to an older version firmware. The modified (downgrade) firmware doesn’t enforce this.
So once you install the 1.35NA downgrade firmware, you will have a router that has 1.35NA firmware but it will now allow you to install 1.34 if you wish.
Does that clear it up for you?
Hi, yes that does help. Which version would you suggest after downgrade? I’m in the US.
Thanks for the quick reply and help!
Well, respectfully, the NA firmwares are the worst as they employ an older USB driver, which from posts on this blog, have major issues. One user here has switched to WW in place of NA firmware to resolve his USB issues. I don’t have a 655 so I am not sure what the exact issues are in 1.34 and 1.35 but with the downgrade firmware, you have the ability to test both and then choose which you prefer. (I have an 855 which I am so close to turning it off and packing it away because of the lack luster stability/performance)
Thank you for your answere. Btw i found aut that it was my usb driver on my pc that was my problem and not the one on the dir-855. But i will have your suggestion in mind if i have more problems with the 1.23eu.
Thank you once again for taking your time to answere.
Hello
Please provide a downgrade from ver1.23EUb06 i have HW A2. I cant find that here?
i would like to go back to original 1.12_B19 or 1.21EUb01 if not possible to go back to 1.12
Most greatful if anyone can help.
Hi;
Sorry for the late response, I’ve been away. I post something for you very shortly.
Dlink didn’t prevent switching firmware regions until late last year. You should be able to use NA downgrade firmware on it and then flash to the EU firmware. Have you tried this and it did not work?
Agreed, I have been looking at that one. Believe it or not, I am now back to using my DGL-4300 which didn’t need replacing in the first place and Ill probably just stick with it for now.
Thanks.
Nothing in the logs other than normal activity. I actually got Amazon.com to accept the return of this router for a refund, so I will finally be done with this issue.
Thanks for your help.
My advice;
Move off DLink, their quality is no better than the no name routers that come out of China but charge as if they are high end routers. Further more, they are not committed to fixing the issues.
You might want to consider the Netgear 3700, everyone appears to be raving about them and they are about half the price.
Thanks. Unfortunately I still get the message about upload failed, the file may not be correct, ect…
Just out of interest, what does the log say when it reboots?
just looks like the power got pulled and does a full reboot. not sure of the exact text.
Is there any way to boot the router from a usb key and flash to an old firmware?
I am sure it is possible but not with DLink firmware. ie if we had open-wrt installed on it, the maybe, but DLink haven’t opened up the platform for installing open-wrt onto it. Ubicomm apparently do support it, just not DLink.
So short answer, no flashing from USB.
So there is nothing logged within your router that indicates a router reboot has occurred, other than the boot process? What appears in the log leading upto the reboot?
I upgraded to the 1.23wwb05 from the 1.23NA because my router suddenly started suffering from the constant reboot problem after 6 months of flawless operation. The 1.23ww changed nothing. There is nothing wrong with the 1.23WWb05 per se, just didn’t help me any. Now that I have take the router out of service, I was hoping to downgrade it to see if that helps. Every downgrade firmware I could find tells me that I cannot downgrade to that version.
Try this downgrade firmware. It is a few versions old and so you will need to then upgrade to the version you do want.
You can find the forum topic here
Firmware 1.20B06 Downgrade
anyone know how to downgrade from 1.23WWB05? The above downgrade firmware wont install.
Thanks
Hi Steve,
So you are unable to install 855NA_FW122NAB05ForDowngrade.bin onto your router which currently has 1.23wwb05?
Firstly, what is 1.23 doing wrong so that you need to roll back?
worked perfectly, back on 1.21 from 1.34NA
Does anybody know if I can flash the DIR 655 back to the 1.10 firmware?
Recovery firmware for that model is on this page. Flash it and then flash back to 1.10
Hi;
I am from Australia and flashed mine from 1.12WW to 1.20NA on my 855 A2.
To be honest, all the DLink firmware is really bad and unstable but I will say that 1.12 was the most stable. These guys at DLink are simply just not doing enough testing when they release firmware.
i’ve got a brand new 1 to 1 router replaced. stock firmware also the same as previous unit. revision A2 as well. but this time round i updated to the firmware listed above.
Reason being, Singapore Dlink’s copy is 1.20WWB04, i reckon the provided by you is more updated.
Anyway 1 day 5 hrs and running now, seemed great at the moment. Will post more result after a few days!
Feels like i’m(we) beta tester for DIR-855
ok, 1.20wwB06 lag to a halt as well at 1 day 19 hours mark.
Now on 1.22NA took the plunge last night flashing to North American’s firmware.
1st time the router went past 2 days mark without hanging yet. Advanced DNS still checked, DNS relay’s still on. Could this be the solution?
Will update when’s the reboot or hang/freeze up.
ok. confirmed for my DIR-855 A2 – 1.22NA works fine for more than 1 week, without slowing down and freezing.
to summarise i’ve bought it in Singapore(south east asia) original firmware is 1.12WW, got the set replaced thinking it’s hardware problem. both sets actually is working fine.
firmwares tried :
- stock 1.12WW
- 1.20WW(both b4 and b6 version from different source)
all freeze up, non of them survived past 2 days mark without freezing.
firmware from dlink.com main site solved my problem 1.22NA
good luck to the rest.
thanks for the link. have you tried the downgrade firmware file?
i’m using 855 A2 revision, on 1.20WW firmware latest as listed on my local support(Singapore)
I’m from Singapore. called up my location Dlink support, i was told i can’t flash to 1.22NA firmware as it’s not meant for my locale and will void my warranty.
My gut feeling is it’s bullshit, so i’m really tempted to flash the router and see if it solve my daily rebooting routine. very very tempted unless with a mean to downgrade back to “restore” my warranty, i will not try 1.22NA.
Its a new router to me, just 2 weeks old.