Asus router RT-AX92U full nand dump needed

smoovie2003

New Around Here
Hello everyone,

I am experiencing some problems with my Asus RT-AX92U router which is a boot loop state, with only power on (blinking every 15 secs) and 5GH1 led lit.

I can flash it by Asus rescue but after reboot it comes back the same, 5GHZ1 led is on and power on led flashes every 15 seconds or so.
I have used a TTL Serial interface to get the logs and get a great load of "Uncorrectable ECC Error: intr 0x70, addr=0x00010000, blk=0," so I think something is wrong with the data either in CRE or the other partitions. I could try to flash the Macronix MX30LF2G18AC NAND using external programmer, but I need to find a good donor for the full dump.

Im posting a part of the log:

BTRM
V1.6
CPU0
L1CD
MMUI
MMU7
DATA
ZBBS
MAIN
OTP?
OTPP
USBT
NAND
IMG?
IMGL
UHD?
UHDP
RLO?
RLOP
UBI?
UBIP
PASS
----
HELO
.-1.0.38-163.181

CPU0
L1CD
MMUI
MMUA
CODE
ZBBS
MAIN
Boot Strap Register: 0x6fc43
...

noticed some Uncorrectable ECC Error:


CFE version 1.0.38-163.181 for BCM94908 (64bit,SP,LE)
Copyright (C) 2000-2015 Broadcom Corporation.

Boot Strap Register: 0x6fc43
Chip ID: BCM4906_A0, Broadcom B53 Quad Core: 1800MHz
Total Memory: 536870912 bytes (512MB)
NAND ECC BCH-8, page size 0x800 bytes, spare size used 108 bytes
NAND flash device: , id 0xc2da block 128KB size 262144KB
Uncorrectable ECC Error: intr 0x70, addr=0x00010000, blk=0,
Uncorrectable ECC Error: intr 0x70, addr=0x00010800, blk=0,

CPU1
ERROR: could not append enough serial LEDs
pmc_init:pMC using DQM mode
pmc_patch_4908:7 0 fe0459 33a033b

board info:


Board IP address : 192.168.1.1:ffffff00
Host IP address : 192.168.1.100
Gateway IP address :
Run from flash/host/tftp (f/h/c) : f
Default host run file name : vmlinux
Default host flash file name : bcm963xx_fs_kernel
Boot delay (0-9 seconds) : 1
Boot image (0=latest, 1=previous) : 0
Default host ramdisk file name :
Default ramdisk store address :
Default DTB file name :
Board Id : 94906AX92U
Number of MAC Addresses (1-64) : 11
Base MAC Address : 00:00:00:00:00:00 (I removed the mac address from the log)
PSI Size (1-512) KBytes : 48
Enable Backup PSI [0|1] : 0
System Log Size (0-256) KBytes : 0
Auxillary File System Size Percent: 0
flow memory allocation (MB) : 43
buffer memory allocation (MB) : 16
DHD 0 memory allocation (MB) : 0
DHD 1 memory allocation (MB) : 0
DHD 2 memory allocation (MB) : 0
WLan Feature : 0x00
Partition 1 Size (MB) : 8M
Partition 2 Size (MB) : 64M
Partition 3 Size (MB) : 0M
Partition 4 Size (MB) (Data) : 8M

and then I get a full list of nand errors such as:


nand: device found, Manufacturer ID: 0xc2, Chip ID: 0xda
nand: Macronix MX30LF2G18AC
nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
bcm63xx_nand ff801800.nand: Adjust timing_1 to 0x65324458 timing_2 to 0x80040e54
bcm63xx_nand ff801800.nand: detected 256MiB total, 128KiB blocks, 2KiB pages, 27B OOB, 8-bit, BCH-8
bcm63xx_nand ff801800.nand: uncorrectable error at 0xffe0400
Bad block table found at page 131008, version 0x01
bcm63xx_nand ff801800.nand: uncorrectable error at 0xffe0400
bcm63xx_nand ff801800.nand: uncorrectable error at 0xffc0400
Bad block table found at page 130944, version 0x01
bcm63xx_nand ff801800.nand: uncorrectable error at 0xffe0400
nand_bbt: ECC error in BBT at 0x00000ffe0005
bcm63xx_nand ff801800.nand: uncorrectable error at 0xffc0400
nand_bbt: ECC error in BBT at 0x00000ffc0005
Scanning device for bad blocks
bcm63xx_nand ff801800.nand: uncorrectable error at 0x400
bcm63xx_nand ff801800.nand: uncorrectable error at 0xc00
bcm63xx_nand ff801800.nand: uncorrectable error at 0x20400
bcm63xx_nand ff801800.nand: uncorrectable error at 0x20c00
bcm63xx_nand ff801800.nand: uncorrectable error at 0x40400
bcm63xx_nand ff801800.nand: uncorrectable error at 0x40c00
bcm63xx_nand ff801800.nand: uncorrectable error at 0x60400
bcm63xx_nand ff801800.nand: uncorrectable error at 0x60c00
bcm63xx_nand ff801800.nand: uncorrectable error at 0x80400
bcm63xx_nand ff801800.nand: uncorrectable error at 0x80c00
bcm63xx_nand ff801800.nand: uncorrectable error at 0xa0400

Can anyone please help with a full Macronix MX30LF2G18AC NAND dump so I can try to flash it using programmer?

Thank you in advance.
 

OzarkEdge

Part of the Furniture
That was the first thing I did.

Yeah, if ECC errors refers to "embedded ECC" or error correction code, a reset won't fix those. I'd assume either a hard fault or some much too scrambled memory contents. Us mere mortals would be off to buy a new router. :)

OE
 

smoovie2003

New Around Here
Yeah, if ECC errors refers to "embedded ECC" or error correction code, a reset won't fix those. I'd assume either a hard fault or some much too scrambled memory contents. Us mere mortals would be off to buy a new router. :)

OE
Can't argue with that, but Im keen on fixing it. Got the tools, just need the dump.
 

OzarkEdge

Part of the Furniture

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