Asus RT-AC87U bricked, pls assist any Guru

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FenixBird
DD-WRT Novice


Joined: 20 Sep 2018
Posts: 4

PostPosted: Thu Sep 20, 2018 6:45    Post subject: Asus RT-AC87U bricked, pls assist any Guru Reply with quote
I apologize dd-wrt users, but on Asus specific sites did not give me any working recommendations.
Please assist me any Guru to recover my router. Finaly after one month I received USB-UART cable. After all preparations I'm able via Putty connect by serial port to router.
If i press quickly ctrl-c able to enter cfe comman line or later if press enter to console command line. But how to recovery, what commands use for recover. I has read a lot of on openwrt and ddwrt forum but nothing assist me. .Please really need to recover, assist somebody. Unable to ping device from windows cmd. Before I'm trying firmware from openwrt and after come back to Asus-merlin firmware by using Asus restoration utility, process was successful,but after rebooting router bricked. Awaiting any info!!!

CFE version 6.37.14.86 (r456083) based on BBP 1.0.37 for BCM947XX (32bit,SP,)

uart0 NS16550 UART at 0x18000300
uart1 NS16550 UART at 0x18000400
nflash0 AMD NAND flash size 131072KB
nflash0.boot AMD NAND flash offset 0 size 512KB
nflash0.nvram AMD NAND flash offset 80000 size 1536KB
nflash0.trx AMD NAND flash offset 200000 size 1KB
nflash0.os AMD NAND flash offset 20001C size 129024KB
nflash1.boot AMD NAND flash offset 0 size 512KB
nflash1.nvram AMD NAND flash offset 80000 size 1536KB
nflash1.trx AMD NAND flash offset 200000 size 129024KB
eth0 Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller

cfe serial console available commands: nvram, reboot, flash, batch, go, boot, load, save, ping, arp, ifconfig, show, help

If will needs any additional info, pls tell me!
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Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 6927
Location: Columbus, Ohio

PostPosted: Thu Sep 20, 2018 9:27    Post subject: Reply with quote
I accidentally put this in the wrong sudforum and I dot have the authority to move it now.
After stopping the cfe type: flash -noheader : nflash1.trx and upload the Asus firmware using tftpd32.

_________________
I am far from a guru, I'm barely a novice.
FenixBird
DD-WRT Novice


Joined: 20 Sep 2018
Posts: 4

PostPosted: Thu Sep 20, 2018 22:12    Post subject: Reply with quote
flash -noheader : flash1.trx
Reading :: TFTP Server.
..tftp retry wait 0
Failed.: Timeout occured
*** command status = -21
Firewall disabled
Used tftp2 gui for windows, tftp client switched on in windows
CFE> help
Available commands:

nvram NVRAM utility.
reboot Reboot.
flash Update a flash memory device
batch Load a batch file into memory and execute it
go Verify and boot OS image.
boot Load an executable file into memory and execute it
load Load an executable file into memory without executing it
save Save a region of memory to a remote file via TFTP
ping Ping a remote IP host.
arp Display or modify the ARP Table
ifconfig Configure the Ethernet interface
show clocks Show current values of the clocks.
show devices Display information about the installed devices.
help Obtain help for CFE commands
FenixBird
DD-WRT Novice


Joined: 20 Sep 2018
Posts: 4

PostPosted: Thu Sep 20, 2018 22:14    Post subject: Reply with quote
CFE> ifconfig
Device eth0: hwaddr xx, ipaddr 192.168.1.1, mask 255.255.255.0 gateway not set, nameserver not set
FenixBird
DD-WRT Novice


Joined: 20 Sep 2018
Posts: 4

PostPosted: Thu Sep 20, 2018 22:15    Post subject: Reply with quote
Before even ifconfig command did not show nothing but i found on forums to make this commands and ipaddr and router hardware appear
nvram set et0macaddr=
nvram set 0:macaddr=
nvram set 1:macaddr=
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