Hello,
I'm trying to recover from a bad cfe flash on my Asus rt-ac66u rev 1.30 (
https://wikidevi.com/wiki/ASUS_RT-AC66U). I found guides for recovering similar model - n66u, however flash chips are different in ac66u. Would welcome any guidance on what to do since I'm a bit lost after a few hours of fruitless googling and checking solder (seems fine). Cheers.
Here is the output I'm getting from zJTAG:
.\zjtag.exe -probeonly /cable:3 /L1:3 /skipdetect
==============================================
zJTAG EJTAG Debrick Utility v1.8 RC3
==============================================
cableid=3, cabletype=0
Dev 0:
Flags=0x2
Type=0x8
ID=0x4038a99
LocId=0x14
SerialNumber=TITL0510
Description=USB Multi-Protocol Adapter Lite
ftHandle=0x0
Set I/O speed to 7500 KHz
USB TAP device has been initialized. Please confirm VREF signal connected!
Press any key to continue... ONCE target board is powered on!
Detected IR chain length = 32
There are 0 device(s) in the JTAG chain
Probing bus ... Done
Detected IR Length is 2 bits
CPU assumed running under LITTLE endian
CPU Chip ID: 11111111111111111111111111111111 (0xFFFFFFFF)
CPU Manufacturer :Unknown(ID=0xFFE)
CPU Device ID :FFFF
CPU Revision :15
*** CHIP DETECTION OVERRIDDEN ***
- EJTAG IMPCODE ....... : 11111111111111111111111111111111 (0xFFFFFFFF)
- EJTAG Version ....... : Unknown (7 is a reserved value)
- EJTAG DMA Support ... : No
- EJTAG Implementation flags: R3k DINTsup ASID_8 ASID_6 MIPS16 NoDMA MIPS64
Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Skipped
Halting Processor ... <Processor Entered Debug Mode!> ... Done
Clearing Watchdog ... Done
Loading CPU Configuration Code ... Skipped
Probing Flash at Address: 0x1FC00000 ...
Detected Chip ID (VenID:DevID = 0000 : 0000)
*** Unknown or NO Flash Chip Detected ***
*** REQUESTED OPERATION IS COMPLETE ***
And output I'm getting from tJTAG (I think i don't have a proper /cable:xxxxx value to use with tJTAG and wasnt able to find it):
.\tjtag302RC2-1.exe -probeonly
==============================================
EJTAG Debrick Utility v3.0.2 RC2-1 Tornado-MOD
==============================================
Selected port = 0x378
Couldn't access giveio device
