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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
Repeat the procedure by changing the IP on your loptop.
Configure your ethernent connection on your loptop to TCP/IPV4 to 192.168.1.10
It shold work after the putty and dos message gets file transfered.
After the message restart the netgear and wait for the green light to come give it a good time to reset on it's own.
Let us know how it works.
Peter
- Ok thanks i will try again later this week.
Dos shows me the message of transfer completed...but putty just start with a long list showing but never says completed.
So maybe there is the problem putty never says completed? - Tried with this settings bu no luck.
Still get the message checking crc and it's starting with the same lust every 20 seconds and afain checking crc.
http://i65.photobucket.com/albums/h223/awesome1982/20170828_153023.jpg I saw your report gives you smram error.
This you get when your smram is corrupted.
I know you tried 50/50/50 if this did not help then you are out of luck.
You must replace the smram and it is not an easy task.
My last question will be what window are you using?. Try a different computer with win 10 or 7.
Sorry.
Peter11742
- At the moment i'm using win 7 but i will try again on another laptop with win 10.
I didn't used the 30/30/30 method yet because everything worked for me except the last step in putty after transferring the file. Hi.
I use win 10 it worked for me at alltimes.
Putty likes win 10 and it works good and fast on i7 laptop.
Godd luck.
peter11742