Serial connection showing garbage characters AC87U, truly bricked for real ?

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diyguy

Regular Contributor
So my AC87u stopped working. I could not get it into recovery mode and could not get any response from it whatsoever. I hooked up my USB to Serial cable to the TX and RX ports and when I turn it on there are garbage characters floating accross the console. IS this thing actually completely toasted ? Any chance of recovering it ? Here is the console output ?

Code:
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
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▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒珟▒▒▒▒?▒?~▒▒▒▒▒▒▒▒▒▒▒▒▒??▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒|▒▒▒<▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒▒{▒▒▒▒▒{▒▒▒▒▒▒~▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒_{▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒{▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒?▒?~▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒~▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ߟ▒▒▒▒▒▒▒▒▒▒▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒?▒▒▒▒▒▒▒▒?▒▒?▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒~▒▒▒▒▒▒▒▒ϟ▒▒▒▒▒▒▒▒▒▒▒
 

diyguy

Regular Contributor
Well I spoke too soon, I got serial output now , but no idea what is going on.

Code:
Loader:raw Filesys:tftp Dev:eth0 File:: Options:(null)
Loading: TFTP Server.
..tftp retry wait 0
Failed.
Could not load :: Timeout occured
Loader:raw Filesys:raw Dev:nflash0.os File: Options:(null)
Loading: .... 4076256 bytes read
Entry at 0x00008000
Closing network.
Starting program at 0x00008000
console [ttyS0] enabled, bootconsole disabled
serial8250.0: ttyS1 at MMIO 0x18000400 (irq = 117) is a 16550
brd: module loaded
loop: module loaded
pflash: found no supported devices
bcmsflash: found no supported devices
Boot partition size = 524288(0x80000)
lookup_nflash_rootfs_offset: offset = 0x200000
nflash: squash filesystem with lzma found at block 28
Creating 4 MTD partitions on "nflash":
0x000000000000-0x000000080000 : "boot"
0x000000080000-0x000000200000 : "nvram"
0x000000200000-0x000004000000 : "linux"
0x00000039fc40-0x000004000000 : "rootfs"
PPP generic driver version 2.4.2
PPP MPPE Compression module registered
NET: Registered protocol family 24
PPTP driver version 0.8.5
Mirror/redirect action on
u32 classifier
    Performance counters on
    Actions configured
Netfilter messages via NETLINK v0.30.
nf_conntrack version 0.5.0 (3991 buckets, 15964 max)
ctnetlink v0.93: registering with nfnetlink.
xt_time: kernel timezone is -0000
ip_tables: (C) 2000-2006 Netfilter Core Team
TCP cubic registered
NET: Registered protocol family 10
ip6_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 17
L2TP core driver, V2.0
PPPoL2TP kernel driver, V2.0
802.1Q VLAN Support v1.8 Ben Greear <[email protected]>
All bugs added by David S. Miller <[email protected]>
Registering the dns_resolver key type
Northstar brcmnand NAND Flash Controller driver, Version 0.1 (c) Broadcom Inc. 2                                                                                                                                                             012
NAND device: Manufacturer ID: 0x01, Chip ID: 0xf1 (AMD NAND 128MiB 3,3V 8-bit)
Spare area=64 eccbytes 56, ecc bytes located at:
 2 3 4 5 6 7 8 9 10 11 12 13 14 15 18 19 20 21 22 23 24 25 26 27 28 29 30 31 34                                                                                                                                                              35 36 37 38 39 40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57 58 59 60 61 62 63
Available 7 bytes at (off,len):
(1,1) (16,2) (32,2) (48,2) (0,0) (0,0) (0,0) (0,0)
Scanning device for bad blocks
Options: NO_AUTOINCR,NO_READRDY,BBT_SCAN2NDPAGE,
Creating 2 MTD partitions on "brcmnand":
0x000004000000-0x000007ec0000 : "brcmnand"
0x000007ec0000-0x000008000000 : "asus"
VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
devtmpfs: mounted
Freeing init memory: 212K
Digital core power voltage set to 1.0V
Decompressing...done
Digital core power voltage set to 1.0V

SHMOO VER 1.13

PKID07DC06011801080000000000001A103F01000000

S300001BB
000011F0


RDLYW0 00000004

RDENW0 00000030

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 00000020
WRDMW0 00000019


ADDR

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

Decompressing...done
Detect CPU turbo button...

CFE version 6.37.14.86 (r456083) based on BBP 1.0.37 for BCM947XX (32bit,SP,)
Build Date: 二  4月 22 16:05:16 CST 2014 ([email protected])
Copyright (C) 2000-2008 Broadcom Corporation.

Init Arena
Init Devs.
Boot partition size = 262144(0x40000)
DDR Clock: 800 MHz
Info: DDR frequency set from clkfreq=1000,*800*
et1: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 6.37.14.86 (r456083)
CPU type 0x0: 1000MHz
Tot mem: 262144 KBytes

CFE mem:    0x00F00000 - 0x01795558 (9000280)
Data:       0x00F4DBB4 - 0x00F4E080 (1228)
BSS:        0x00F4E090 - 0x00F93558 (283848)
Heap:       0x00F93558 - 0x01793558 (8388608)
Stack:      0x01793558 - 0x01795558 (8192)
Text:       0x00F00000 - 0x00F4430C (279308)

Device eth0:  hwaddr , ipaddr 192.168.1.1, mask 255.255.255.0
        gateway not set, nameserver not set
Null Rescue Flag.
boot the image...
 

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