[SOLVED] Netgear R8000 Firmware Not Compatible

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foz111
DD-WRT User


Joined: 01 Oct 2017
Posts: 199

PostPosted: Wed Oct 16, 2019 8:56    Post subject: Reply with quote
foz111 wrote:
foz111 wrote:
thanks KP, i have flashed a few times tftpd & serial but completely forgot the 'go' part, i had ran the nvram erase commands but i will have another go, i am sure the go command will now write to nand.
Thanks bro


No that not worked either :

CFE> nvram erase
*** command status = 0
CFE> flash -noheader : flash1.trx
Reading :: Done. 25067578 bytes read
Programming...done. 25067578 bytes written
*** command status = 0
CFE> go
Checking crc...Invalid boot block on disk
Device eth0 has been deactivated.
Device eth0: hwaddr 3C-37-86-xx-xx-xx, ipaddr 192.168.1.1, mask 255.255.255.0
gateway not set, nameserver not set
Start TFTP server
Reading ::


Added: It seems that if i enter flash -noheader : flash1.trx command even with the latest stock it returns to command prompt then if i enter command go it retunrs to the Start TFTP server only way this seems to flash is with latest stock without header command and it reboots as it should very strange, not sure if router is iffy or latest stock has again changed adding more security to netgear fw
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flakie
DD-WRT User


Joined: 23 Sep 2017
Posts: 204
Location: Swindon, UK

PostPosted: Wed Oct 16, 2019 9:46    Post subject: Reply with quote
foz111 are you using the bin file?
Using the chk file will give those errors.

_________________
Router Model: Netgear R8000
Firmware: DD-WRT v3.0-r40270M kongac (07/11/19)
Modem: Super Hub 3.0
ISP: Virgin Media 350/35 Mbps

flakie
DD-WRT User


Joined: 23 Sep 2017
Posts: 204
Location: Swindon, UK

PostPosted: Wed Oct 16, 2019 9:49    Post subject: Reply with quote
ignore the above. I just found your old post where you found out using chk gave the errors Wink
_________________
Router Model: Netgear R8000
Firmware: DD-WRT v3.0-r40270M kongac (07/11/19)
Modem: Super Hub 3.0
ISP: Virgin Media 350/35 Mbps

foz111
DD-WRT User


Joined: 01 Oct 2017
Posts: 199

PostPosted: Wed Oct 16, 2019 14:07    Post subject: Reply with quote
To be honest i tried kong.chk, bs.chk old stock.chk bs.bin
bs factory to dd-wrt.chk in all about 10-12 files and only 1 that will take and work every time is the latest Netgear firmware that it's already on, even tried one i changed header on with hex editor i found on pc.
so either router iffy or Netgear is playing silly buggers again.
funny thing, if you use: flash -noheader : flash1.trx command and tftp the latest firmware over that don't work either returns to tftp server prompt very odd but suspect Netgear fw blocking something again not good either way.
jmp333
DD-WRT Novice


Joined: 01 Nov 2019
Posts: 1

PostPosted: Fri Nov 01, 2019 23:48    Post subject: Need Help Reply with quote
Hi everyone I'm new here today, I just got a r8000 today and was wondering if any of you tech guys are in the Socal area that can help me with the DDwrt update on the r8000. I can take you the router I want to give this as a gift to my son but I'm not tech savvy. Let me know if you can help I'll get you lunch lol!!
mantei64
DD-WRT Novice


Joined: 04 Nov 2019
Posts: 1

PostPosted: Mon Nov 04, 2019 0:08    Post subject: Unable to upload firmware Reply with quote
I have had a Netgear R8000 for years and recently bricked it. I went out and bought a like-new R8000 and want to upgrade it. I am getting the "Invalid Firmware" message. I opened it up to hook up my serial cable and I can't get it to enter CFE mode. CRTL-C seems to do nothing in the session. Nothing I type in putty seems to have any effect at all. Does anyone have any ideas why this might be happening?
foz111
DD-WRT User


Joined: 01 Oct 2017
Posts: 199

PostPosted: Mon Nov 04, 2019 14:43    Post subject: Reply with quote
Crtl + C is all about timing but i was unable to flash over the latest stock firmware myself.
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