Can't get into CFE mode

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nick323
DD-WRT Novice


Joined: 28 Mar 2015
Posts: 7

PostPosted: Fri Apr 20, 2018 15:44    Post subject: Can't get into CFE mode Reply with quote
I have a Netgear R7000 and I'm trying to get into CFE mode.

I used a USB to TTL cable and followed the instructions to get into CFE mode. I rapidly pressed CTRL+C and no luck getting it to work. I've tried many different patterns of pressing it.
Putty is displaying everything properly and it just continues on to boot.

Is there something I missed? Any help would be appreciated. Thanks.
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jwh7
DD-WRT Guru


Joined: 25 Oct 2013
Posts: 2339
Location: Indy

PostPosted: Fri Apr 20, 2018 18:50    Post subject: Re: Can't get into CFE mode Reply with quote
nick323 wrote:
I used a USB to TTL cable and followed the instructions to get into CFE mode. I rapidly pressed CTRL+C and no luck getting it to work. I've tried many different patterns of pressing it.
Putty is displaying everything properly and it just continues on to boot.
After it boots, can you press <enter> and get a prompt? If not, your Tx line isn't right. If so, are you doing ctrl-c simultaneous to powering on the R7000? You only have a second.
_________________
# NAT/SFE/CTF: limited speed w/ DD # Repeater issues # DD-WRT info: FAQ, Builds, Types, Modes, Changes, Demo #
x64 OPNsense 19.7.5|EA6900v1.1@1GHz FT 2019.3b|DD 41218: WNDR4500v2, WNDR4000@533, E1500@353, R6300v1,
2*E2500, WRT54*@250: GLv1.1 nsg, GSv6 µ
|RT-N66U@663 Merlin 380.70|OEM: WGR614v10@400-WNR1000v3 mod
Dr_K
DD-WRT User


Joined: 23 Mar 2018
Posts: 437

PostPosted: Fri Apr 20, 2018 19:21    Post subject: Reply with quote
Have you tried connecting a hub between target router and pc?

I think it opens your window of opportunity a bit, which helps a lot

At least that's how it seams to me... maybe placebo though

_________________
Location 1
R6300V2- DD-WRT v3.0-r39345M kongac (04-03-19) Gateway
WNDR3400v1 DD-WRT.v3.0-r35531_mega-nv64k (03/26/18 ) Access Point
WRT160Nv3 DD-WRT ?v3?.0-r35531 mini (03/26/18 ) Access Point
WRT54GSv5 DD-WRT v24-r33555_micro_generic (10/20/17) Repeater
Location 2
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Gateway
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Access Point
WNDR3700v2 DD-WRT v3.0-r35531 std (03/26/18 ) Access Point
E1200 v2 DD-WRT v3.0-r35531 mega-nv64k (03/26/18 ) Gateway(for trivial reasons)
2 devices: SXT 5 ac (mipsbe) RB 6.45.1 (06/27/19) PTP Bridge (0.8km/0.5mi)tx/rx866.6Mbps-1GbpsLAN

Thank You <Kong> & BrainSlayer for ALL that you do also to everyone here that shares their knowledge
jwh7
DD-WRT Guru


Joined: 25 Oct 2013
Posts: 2339
Location: Indy

PostPosted: Fri Apr 20, 2018 20:12    Post subject: Reply with quote
Dr_K wrote:
Have you tried connecting a hub between target router and pc?
That's for TFTP, not Serial. Smile
_________________
# NAT/SFE/CTF: limited speed w/ DD # Repeater issues # DD-WRT info: FAQ, Builds, Types, Modes, Changes, Demo #
x64 OPNsense 19.7.5|EA6900v1.1@1GHz FT 2019.3b|DD 41218: WNDR4500v2, WNDR4000@533, E1500@353, R6300v1,
2*E2500, WRT54*@250: GLv1.1 nsg, GSv6 µ
|RT-N66U@663 Merlin 380.70|OEM: WGR614v10@400-WNR1000v3 mod
Dr_K
DD-WRT User


Joined: 23 Mar 2018
Posts: 437

PostPosted: Fri Apr 20, 2018 21:01    Post subject: Reply with quote
jwh7 wrote:
That's for TFTP, not Serial. Smile


Ok.. I will accept it as placebo then

but

Serial and TFTP has always been a step 1 step 2 thing for me
and I consistently failed at step one till the introduction of the hub.. which is now step 0.5 for me

I never got the opportunity to fail at step 2 without the hub...because I could never made it that far

Don't get me wrong.. I'm in no way disagreeing with you

I guess my current success rate is due to experience? then? and not the hub

That said..nick323 keep doing the power on/keyboard button mash thing, you'll get it, and remember it's nvram erase while in CFE if you are wanting to erase nvram while in there

_________________
Location 1
R6300V2- DD-WRT v3.0-r39345M kongac (04-03-19) Gateway
WNDR3400v1 DD-WRT.v3.0-r35531_mega-nv64k (03/26/18 ) Access Point
WRT160Nv3 DD-WRT ?v3?.0-r35531 mini (03/26/18 ) Access Point
WRT54GSv5 DD-WRT v24-r33555_micro_generic (10/20/17) Repeater
Location 2
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Gateway
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Access Point
WNDR3700v2 DD-WRT v3.0-r35531 std (03/26/18 ) Access Point
E1200 v2 DD-WRT v3.0-r35531 mega-nv64k (03/26/18 ) Gateway(for trivial reasons)
2 devices: SXT 5 ac (mipsbe) RB 6.45.1 (06/27/19) PTP Bridge (0.8km/0.5mi)tx/rx866.6Mbps-1GbpsLAN

Thank You <Kong> & BrainSlayer for ALL that you do also to everyone here that shares their knowledge
nick323
DD-WRT Novice


Joined: 28 Mar 2015
Posts: 7

PostPosted: Fri Apr 20, 2018 21:49    Post subject: Reply with quote
This is my serial output. I've tried CTRL+C many times but still no luck. It continues to load to Checking crc... It's so weird.


Digital core power voltage set to 1.0V
Decompressing...done
Digital core power voltage set to 1.0V

SHMOO VER 1.13

PKID07DC06011801080000000000001A103F01000000

S300001D7
00001390


RDLYW0 00000004

RDENW0 00000032

RDQSW0

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 ------++++++++++++++++++++++++X++++++++++++++++++++++++---------
01 ----------++++++++++++++++++++++++X++++++++++++++++++++++++-----
02 -------+++++++++++++++++++++++X++++++++++++++++++++++-----------
03 -----++++++++++++++++++++++++X+++++++++++++++++++++++-----------
04 -----+++++++++++++++++++++++X++++++++++++++++++++++-------------
05 --------++++++++++++++++++++++++X++++++++++++++++++++++++-------
06 -----+++++++++++++++++++++++X+++++++++++++++++++++++------------
07 -------+++++++++++++++++++++++++X++++++++++++++++++++++++-------
08 -------+++++++++++++++++++++++X+++++++++++++++++++++++----------
09 -------------+++++++++++++++++++++++++X+++++++++++++++++++++++--
10 ----------+++++++++++++++++++++++X+++++++++++++++++++++++-------
11 --------------+++++++++++++++++++++++X+++++++++++++++++++++++---
12 --------+-++++++++++++++++++++++X++++++++++++++++++++++---------
13 -------------+++++++++++++++++++++++X++++++++++++++++++++++-----
14 --------++++++++++++++++++++++++X+++++++++++++++++++++++--------
15 --------------+++++++++++++++++++++++++X++++++++++++++++++++++--


PW0

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 -+++++++++++++++++++++++++++X+++++++++++++++++++++++++++--------
01 ----+++++++++++++++++++++++++++X+++++++++++++++++++++++++++-----
02 -++++++++++++++++++++++++++X++++++++++++++++++++++++++----------
03 ++++++++++++++++++++++++++X++++++++++++++++++++++++++-----------
04 +++++++++++++++++++++++++X+++++++++++++++++++++++++-------------
05 --++++++++++++++++++++++++++++X+++++++++++++++++++++++++++------
06 ++++++++++++++++++++++++++X+++++++++++++++++++++++++------------
07 --++++++++++++++++++++++++++++X+++++++++++++++++++++++++++------
08 -+++++++++++++++++++++++++++X++++++++++++++++++++++++++---------
09 --------++++++++++++++++++++++++++++X++++++++++++++++++++++++++-
10 ---+++++++++++++++++++++++++++X++++++++++++++++++++++++++-------
11 -------++++++++++++++++++++++++++++X++++++++++++++++++++++++++--
12 ---++++++++++++++++++++++++++X++++++++++++++++++++++++++--------
13 -------++++++++++++++++++++++++++X+++++++++++++++++++++++++-----
14 ----+++++++++++++++++++++++++++X++++++++++++++++++++++++++------
15 -------++++++++++++++++++++++++++++X+++++++++++++++++++++++++++-


NW0

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 ------++++++++++++++++++++++++X++++++++++++++++++++++++---------
01 ----------+++++++++++++++++++++++++X++++++++++++++++++++++++----
02 -------+++++++++++++++++++++++X++++++++++++++++++++++-----------
03 ------++++++++++++++++++++++++X+++++++++++++++++++++++----------
04 -----+++++++++++++++++++++++X+++++++++++++++++++++++------------
05 -------+++++++++++++++++++++++++X++++++++++++++++++++++++-------
06 ------+++++++++++++++++++++++X+++++++++++++++++++++++-----------
07 -------+++++++++++++++++++++++++X++++++++++++++++++++++++-------
08 -------+++++++++++++++++++++++X+++++++++++++++++++++++----------
09 --------------+++++++++++++++++++++++++X++++++++++++++++++++++--
10 ---------++++++++++++++++++++++++X+++++++++++++++++++++++-------
11 --------------+++++++++++++++++++++++X+++++++++++++++++++++++---
12 ---------+++++++++++++++++++++++X++++++++++++++++++++++---------
13 -------------+++++++++++++++++++++++X++++++++++++++++++++++-----
14 --------++++++++++++++++++++++++X+++++++++++++++++++++++--------
15 --------------+++++++++++++++++++++++++X++++++++++++++++++++++--


WRDQW0

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 +++++++++++++++++++++++X+++++++++++++++++++++++------++++++++++-
01 ++++++++++++++++++++++++X++++++++++++++++++++++++------++++++++-
02 +++++++++++++++++++++++++X++++++++++++++++++++++++-----++++++++-
03 ++++++++++++++++++++++++X+++++++++++++++++++++++------+++++++++-
04 ++++++++++++++++++++++X++++++++++++++++++++++---------+++++++++-
05 ++++++++++++++++++++++++X+++++++++++++++++++++++-----++++++++++-
06 ++++++++++++++++++++++X++++++++++++++++++++++---------+++++++++-
07 ++++++++++++++++++++++++X++++++++++++++++++++++++------++++++++-
08 +++++++++++++++++++++++X+++++++++++++++++++++++-------+++++++++-
09 -++++++++++++++++++++++++X+++++++++++++++++++++++----------++++-
10 +++++++++++++++++++++++X+++++++++++++++++++++++-------+++++++++-
11 --+++++++++++++++++++++++X+++++++++++++++++++++++------------++-
12 +++++++++++++++++++++++X+++++++++++++++++++++++------++++++++++-
13 --+++++++++++++++++++++++X+++++++++++++++++++++++----------++++-
14 ++++++++++++++++++++++++X++++++++++++++++++++++++------++++++++-
15 ---+++++++++++++++++++++++X++++++++++++++++++++++-----------+++-


WRDMW0 00000023
WRDMW0 00000024


ADDR

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 +++++++++++++++++++S+++++++++++X++++++++++++++++++++++++++++++++

Decompressing...done


CFE for Foxconn Router R7000 version: v1.0.21
Build Date: Wed Aug 7 19:11:17 CST 2013
Init Arena
Init Devs.
Boot up from NAND flash...
Bootcode Boot partition size = 524288(0x80000)
DDR Clock: 800 MHz
Info: DDR frequency set from clkfreq=1000,*800*
et0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 6.37.15.1 (r407936)
CPU type 0x0: 1000MHz
Tot mem: 262144 KBytes

nvram erase
Digital core power voltage set to 1.0V
Decompressing...done


CFE for Foxconn Router R7000 version: v1.0.21
Build Date: Wed Aug 7 19:11:17 CST 2013
Init Arena
Init Devs.
Boot up from NAND flash...
Bootcode Boot partition size = 524288(0x80000)
DDR Clock: 400 MHz
Info: DDR frequency set from clkfreq=1000,*800*
Warning: invalid DDR setting of 800 MHz ignored. DDR frequency will be set to 400 MHz.
et0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 6.37.15.1 (r407936)
CPU type 0x0: 1000MHz
Tot mem: 262144 KBytes

Committing NVRAM...done
Waiting for reset button release...donDigital core power voltage set to 1.0V
Decompressing...done
Digital core power voltage set to 1.0V

SHMOO VER 1.13

PKID07DC06011801080000000000001A103F01000000

S300001D7
00001360


RDLYW0 00000004

RDENW0 00000032

RDQSW0

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 ----++++++++++++++++++++++++X++++++++++++++++++++++++-----------
01 --------++++++++++++++++++++++++X++++++++++++++++++++++++-------
02 -----+++++++++++++++++++++++X++++++++++++++++++++++-------------
03 ----+++++++++++++++++++++++X+++++++++++++++++++++++-------------
04 ---+++++++++++++++++++++++X++++++++++++++++++++++---------------
05 ------++++++++++++++++++++++++X++++++++++++++++++++++++---------
06 ---+++++++++++++++++++++++X+++++++++++++++++++++++--------------
07 ----+++++++++++++++++++++++++X+++++++++++++++++++++++++---------
08 ----+-+++++++++++++++++++++++X++++++++++++++++++++++------------
09 -----------++++++++++++++++++++++++X++++++++++++++++++++++++----
10 -------++++++++++++++++++++++++X+++++++++++++++++++++++---------
11 -----------++++++++++++++++++++++++X+++++++++++++++++++++++-----
12 ------+-++++++++++++++++++++++X++++++++++++++++++++++-----------
13 -----------+++++++++++++++++++++++X++++++++++++++++++++++-------
14 ------++++++++++++++++++++++++X+++++++++++++++++++++++----------
15 ------------++++++++++++++++++++++++X+++++++++++++++++++++++----


PW0

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 +++++++++++++++++++++++++++X++++++++++++++++++++++++++----------
01 --+++++++++++++++++++++++++++X+++++++++++++++++++++++++++-------
02 ++++++++++++++++++++++++++X+++++++++++++++++++++++++------------
03 +++++++++++++++++++++++++X+++++++++++++++++++++++++-------------
04 ++++++++++++++++++++++++X++++++++++++++++++++++++---------------
05 -+++++++++++++++++++++++++++X+++++++++++++++++++++++++++--------
06 +++++++++++++++++++++++++X++++++++++++++++++++++++--------------
07 -+++++++++++++++++++++++++++X+++++++++++++++++++++++++++--------
08 ++++++++++++++++++++++++++X+++++++++++++++++++++++++------------
09 ------+++++++++++++++++++++++++++X++++++++++++++++++++++++++----
10 --++++++++++++++++++++++++++X++++++++++++++++++++++++++---------
11 -----+++++++++++++++++++++++++++X+++++++++++++++++++++++++++----
12 --++++++++++++++++++++++++++X+++++++++++++++++++++++++----------
13 -------+++++++++++++++++++++++++X++++++++++++++++++++++++-------
14 -+++++++++++++++++++++++++++X++++++++++++++++++++++++++---------
15 -----++++++++++++++++++++++++++++X+++++++++++++++++++++++++++---


NW0

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 ----++++++++++++++++++++++++X++++++++++++++++++++++++-----------
01 --------+++++++++++++++++++++++++X++++++++++++++++++++++++------
02 -----+++++++++++++++++++++++X++++++++++++++++++++++-------------
03 ----++++++++++++++++++++++++X+++++++++++++++++++++++------------
04 ---+++++++++++++++++++++++X+++++++++++++++++++++++--------------
05 ------++++++++++++++++++++++++X++++++++++++++++++++++++---------
06 ---+++++++++++++++++++++++X+++++++++++++++++++++++--------------
07 -----+++++++++++++++++++++++++X++++++++++++++++++++++++---------
08 -----+++++++++++++++++++++++X+++++++++++++++++++++++------------
09 ------------++++++++++++++++++++++++X+++++++++++++++++++++++----
10 -------++++++++++++++++++++++++X+++++++++++++++++++++++---------
11 -----------++++++++++++++++++++++++X+++++++++++++++++++++++-----
12 ------+++++++++++++++++++++++X+++++++++++++++++++++++-----------
13 -----------+++++++++++++++++++++++X++++++++++++++++++++++-------
14 ------++++++++++++++++++++++++X+++++++++++++++++++++++----------
15 ------------++++++++++++++++++++++++X+++++++++++++++++++++++----


WRDQW0

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 +++++++++++++++++++++++X+++++++++++++++++++++++------++++++++++-
01 ++++++++++++++++++++++++X++++++++++++++++++++++++------++++++++-
02 +++++++++++++++++++++++++X++++++++++++++++++++++++----+++++++++-
03 ++++++++++++++++++++++++X+++++++++++++++++++++++------+++++++++-
04 ++++++++++++++++++++++X++++++++++++++++++++++---------+++++++++-
05 ++++++++++++++++++++++++X+++++++++++++++++++++++-----++++++++++-
06 ++++++++++++++++++++++X++++++++++++++++++++++---------+++++++++-
07 ++++++++++++++++++++++++X++++++++++++++++++++++++------++++++++-
08 +++++++++++++++++++++++X++++++++++++++++++++++-------++++++++++-
09 -++++++++++++++++++++++++X+++++++++++++++++++++++---------+++++-
10 +++++++++++++++++++++++X+++++++++++++++++++++++------++++++++++-
11 --+++++++++++++++++++++++X+++++++++++++++++++++++-----------+++-
12 +++++++++++++++++++++++X+++++++++++++++++++++++------++++++++++-
13 --+++++++++++++++++++++++X+++++++++++++++++++++++----------++++-
14 ++++++++++++++++++++++++X++++++++++++++++++++++++-------+++++++-
15 --+++++++++++++++++++++++X+++++++++++++++++++++++------------++-


WRDMW0 00000023
WRDMW0 00000024


ADDR

0000000000111111111122222222223333333333444444444455555555556666
0123456789012345678901234567890123456789012345678901234567890123
00 +++++++++++++++++++S+++++++++++X++++++++++++++++++++++++++++++++

Decompressing...done


CFE for Foxconn Router R7000 version: v1.0.21
Build Date: Wed Aug 7 19:11:17 CST 2013
Init Arena
Init Devs.
Boot up from NAND flash...
Bootcode Boot partition size = 524288(0x80000)
DDR Clock: 800 MHz
Info: DDR frequency set from clkfreq=1000,*800*
et0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 6.37.15.1 (r407936)
CPU type 0x0: 1000MHz
Tot mem: 262144 KBytes

Device eth0: hwaddr C4-04-15-XX-XX-XX, ipaddr 192.168.1.1, mask 255.255.255.0
gateway not set, nameserver not set
Checking crc...Loader:raw Filesys:raw Dev:nflash0.os File: Options:(null)
Loading: .. 1441600 bytes read
Entry at 0x00008000
Closing network.
Starting program at 0x00008000
Uncompressing Linux... done, booting the kernel.
Dr_K
DD-WRT User


Joined: 23 Mar 2018
Posts: 437

PostPosted: Fri Apr 20, 2018 22:44    Post subject: Reply with quote
Faster


Wait...it says..... nvram erase.......then a ram frequency issue.....


By chance are you running xwrt-vortex 384.x ?

if so.. it no doubt corrupted your CFE... check out

https://www.dd-wrt.com/phpBB2/viewtopic.php?t=314525&highlight=reset+default

I don't have a CFE file for a R7000 so all I can say is

Good Luck

If you ona true DD-WRT build.....faster faster faster

_________________
Location 1
R6300V2- DD-WRT v3.0-r39345M kongac (04-03-19) Gateway
WNDR3400v1 DD-WRT.v3.0-r35531_mega-nv64k (03/26/18 ) Access Point
WRT160Nv3 DD-WRT ?v3?.0-r35531 mini (03/26/18 ) Access Point
WRT54GSv5 DD-WRT v24-r33555_micro_generic (10/20/17) Repeater
Location 2
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Gateway
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Access Point
WNDR3700v2 DD-WRT v3.0-r35531 std (03/26/18 ) Access Point
E1200 v2 DD-WRT v3.0-r35531 mega-nv64k (03/26/18 ) Gateway(for trivial reasons)
2 devices: SXT 5 ac (mipsbe) RB 6.45.1 (06/27/19) PTP Bridge (0.8km/0.5mi)tx/rx866.6Mbps-1GbpsLAN

Thank You <Kong> & BrainSlayer for ALL that you do also to everyone here that shares their knowledge
nick323
DD-WRT Novice


Joined: 28 Mar 2015
Posts: 7

PostPosted: Sat Apr 21, 2018 0:19    Post subject: Reply with quote
I did have xwrt-vortex 384.x loaded before and realized what had happened.
boochi99 was kind enough to email me a backup copy of the stock CFE file since we share the same version/model.
My bootloader isn't corrupted other than the nvram erase line of code that I need to get rid of.
I just want to restore the stock CFE file and everything will be back to normal.
Dr_K
DD-WRT User


Joined: 23 Mar 2018
Posts: 437

PostPosted: Sat Apr 21, 2018 1:12    Post subject: Reply with quote
Well that's making more sense.....but then it doesn't

You restore your CFE through SSHd or telnet

I'm not telling you to do this for obvious reasons but

you need to place your good CFE file in DD-WRT's /tmp directory (I believe edited with your mac addresses, with a hex editor)

Again not telling you to do this...

in SSHd or telnet

Code:
mtd unlock cfe   press enter
mtd write -f /tmp/cfe_new.bin cfe   press enter


Hopefully someone with more knowledge will comment but I believe your "nvram erase" is coming from within your CFE..
Telling me that you have not applied it yet

You being more up front with your info/situation would only be more helpful to you

_________________
Location 1
R6300V2- DD-WRT v3.0-r39345M kongac (04-03-19) Gateway
WNDR3400v1 DD-WRT.v3.0-r35531_mega-nv64k (03/26/18 ) Access Point
WRT160Nv3 DD-WRT ?v3?.0-r35531 mini (03/26/18 ) Access Point
WRT54GSv5 DD-WRT v24-r33555_micro_generic (10/20/17) Repeater
Location 2
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Gateway
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Access Point
WNDR3700v2 DD-WRT v3.0-r35531 std (03/26/18 ) Access Point
E1200 v2 DD-WRT v3.0-r35531 mega-nv64k (03/26/18 ) Gateway(for trivial reasons)
2 devices: SXT 5 ac (mipsbe) RB 6.45.1 (06/27/19) PTP Bridge (0.8km/0.5mi)tx/rx866.6Mbps-1GbpsLAN

Thank You <Kong> & BrainSlayer for ALL that you do also to everyone here that shares their knowledge


Last edited by Dr_K on Sat Apr 21, 2018 3:43; edited 1 time in total
boochi99
DD-WRT User


Joined: 31 Jan 2012
Posts: 77
Location: North Carolina

PostPosted: Sat Apr 21, 2018 2:00    Post subject: Reply with quote
The MAC printed on your router is not stored in the CFE at least not on mine.

Run "strings /dev/mtd0|grep -e mac -e addr" and see what you get.
nick323
DD-WRT Novice


Joined: 28 Mar 2015
Posts: 7

PostPosted: Sat Apr 21, 2018 3:03    Post subject: Reply with quote
For this...
mtd unlock cfe press enter
mtd write -f /tmp/cfe_new.bin.cfe press enter

Do I run these commands via SSH or telnet when the router is booted up? When I ran the commands it gave me an error of unable to write the CFE file.
boochi99
DD-WRT User


Joined: 31 Jan 2012
Posts: 77
Location: North Carolina

PostPosted: Sat Apr 21, 2018 4:04    Post subject: Reply with quote
I used telnet and I entered these commands one at a time. The CFE is in the mtd0 folder.

1. mtd unlock mtd0

2. mtd write -f /tmp/stock-cfe.bin mtd0

3. erase nvram

4. reboot
Dr_K
DD-WRT User


Joined: 23 Mar 2018
Posts: 437

PostPosted: Sat Apr 21, 2018 4:08    Post subject: Reply with quote
Thank You boochi99 for the clarification
_________________
Location 1
R6300V2- DD-WRT v3.0-r39345M kongac (04-03-19) Gateway
WNDR3400v1 DD-WRT.v3.0-r35531_mega-nv64k (03/26/18 ) Access Point
WRT160Nv3 DD-WRT ?v3?.0-r35531 mini (03/26/18 ) Access Point
WRT54GSv5 DD-WRT v24-r33555_micro_generic (10/20/17) Repeater
Location 2
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Gateway
R6300V2- DD-WRT v3.0-r39345M kongac (04/03/19) Access Point
WNDR3700v2 DD-WRT v3.0-r35531 std (03/26/18 ) Access Point
E1200 v2 DD-WRT v3.0-r35531 mega-nv64k (03/26/18 ) Gateway(for trivial reasons)
2 devices: SXT 5 ac (mipsbe) RB 6.45.1 (06/27/19) PTP Bridge (0.8km/0.5mi)tx/rx866.6Mbps-1GbpsLAN

Thank You <Kong> & BrainSlayer for ALL that you do also to everyone here that shares their knowledge
nick323
DD-WRT Novice


Joined: 28 Mar 2015
Posts: 7

PostPosted: Sat Apr 21, 2018 5:52    Post subject: Reply with quote
boochi99 wrote:
I used telnet and I entered these commands one at a time. The CFE is in the mtd0 folder.

1. mtd unlock mtd0

2. mtd write -f /tmp/stock-cfe.bin mtd0

3. erase nvram

4. reboot


Thanks again boochi99. Thumbs up for you!
I was missing the last piece to your step 2 (mtd0).
My R7000 is working without it erasing the NVRAM each time I reboot. Very Happy
boochi99
DD-WRT User


Joined: 31 Jan 2012
Posts: 77
Location: North Carolina

PostPosted: Sat Apr 21, 2018 12:52    Post subject: Reply with quote
Glad I could help.

Just verify your MAC's are correct.
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