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R8500 bricked
Hi All. This is my first report. I purchased on purpose the above router on Ebay. I can not register it Serial 4DG65B7G019C5 it is used like mint. The reason i found it is the best range router an...
This is my final procedure after I fixed the second router r8500.
1) J4 connector pins : 1 2 3 4 pins are visable by looking the motherboard and they are located in the front view.
and j4 mark is located next to #1 pin. 1 gets green color, 2 gets white color, 3 gets green color, 4 is not connected.
2) open the bottom cover by removing the 6 tork screws.
Take the cover half way out so you can see the j4 plug and plug the serial cable.Turn on the router.
3) Start Putty let it run for a minite or so and start sending control c commands until you will see CFE.
4) on CFE type nvram erase you will see a 0 as an answer.
5) On CFE type tftpd you will get tftpd server ready ::
6) go on comand mode dos cmd>tfttp -i 192.168.1.1 put C:\r85.chk
r85.chk will be your old firmware located on the c:\ main directory
7) Now you will see a blue led on the #1 port flickering comminicating.
8) if what you did is correct then you will get from dos and putty file tranfered successful.
9) Now hold the reset button with a pin and turn the power off.
10) with the pin on reset turn power on and waight for 3 reboots let the pin go.
11) waight for 2 minutes you will see many led's comunicating and final the main led will be normal.
12) The router is now ready to be configuerd.
13) The network name and password is located on the white paper top right or at the bottom of the router.
I did 2 units the first one it took 1 week the second one it .5 hour.
Good luck.
peter11742
ElaineM wrote:I apologize but our scope of support is limited especially when the hardware has been opened.
The fact that the only way to fix the NVRAM corruption caused by the router firmware is to open the router should be something engineering want to fix.
If they are happy to just replace routers when this happens then so be it but it is happening far too often!
Perhaps it is a hardware fault with some devices and there is no choice but to replace the devices, but the people on this topic need to know that too.
And, if it is a harware fault, what about those people that have devices that are not long out of warrantee?
Given the price of this device the problem isn't being handled well at all!
Ian
Hi All.
I have no issues with any warranty.
I bought a product that it is still in warranty but the serial number was entered by the previous owner and of course Netgear rejected.
I do not ask for favors, I ask for my legal rights that the software is corrupted but it can not be restored.
I learn that the header in the nvram is corrupted. The new version of the nvram is looking for this header it does not find it and corrupts bricks the router.
As an engineer I never created software that will change my original selection.
So far I lost my faith for a good software update.
I use the router with it's original software and of cource I have only 2x 5 mhz channels and none 1x 2 mhz channel.
I will have more information soon.
I will find how to create a new header on the nvram eprom.
Peter 11742.
Hi all.
After all this past time I found still we can not update the new software version.
Let me know if any one has any better news.
Peter11742