I've spent countless hours reading the threads here and other places trying to recover my Asus ROG Rapture GT-AC5300.
Router is in boot loop... can't break cfe, I believe that's because my keyboard entries aren't getting passed over serial connection. This is the cable I used to make the serial connection over putty. Initially I tried with RPi 3 serial connection and experienced the same exact behavior
https://www.amazon.com/gp/product/B00QT7LQ88/?tag=snbforums-20
1. Boot loop: When I turn on the route, it goes to boot loop. If I set my PC ip to static 192.168.1.x, I am able to ping the route for ~10 seconds when it's waiting for TFTP server start and then starts timing out when the router reboots. I've attached the log here with name normal.txt. I see these lines in the serial console, but keyboard input doesn't work to interrupt the boot.
External switch id = 5075
*** Press any key to stop auto run (5 seconds) ***
...
Hit ENTER for console...
2. Rescue boot: When I try rescue boot, by holding the reset button and turn on the router, I see the router going to rescue mode with repeated errors messages in the console.. Attached full log rescue-boot.txt. Yes, I am able to ping 192.168.1.1 with 100TTL, no connection issues but can't access CFE in the browser. I am able to use ASUS recovery tool here and upload the firmware... I see the successful upload of firmware in the serial console but at the end of the process, the router gets rebooted and goes into boot loop (1). I also tried using TFTP client (utility, cmd line etc) and the same issue after flashing.
Enable Switch MAC Port Rx/Tx, set PBVLAN to FAN out, set switch to NO-STP.
Loading 255.255.255.255:ASUSSPACELINK ...
TFTP Server
tftpd retry
Loading failed.: CFE error -21
Loading 255.255.255.255:ASUSSPACELINK ...
TFTP Server
tftpd retry
Loading failed.: CFE error -21
Loading 255.255.255.255:ASUSSPACELINK ...
TFTP Server
tftpd retry
Loading failed.: CFE error -21
Loading 255.255.255.255:ASUSSPACELINK ...
TFTP Server
3. CFE/WPS mode??
I also tried to clear NVRAM by holding the WPS button and manually turn on the router... I do get CFE prompt at end but again can't use the keyboard to pass commands. log file wps-cfeboot.txt attached.
External switch id = 5075
Enable Switch MAC Port Rx/Tx, set PBVLAN to FAN out, set switch to NO-STP.
web info: Waiting for connection on socket 0.
CFE>
Here I am able to access the CFE boot over 192.168.1.1. I uploaded different ASUS firmwares downloaded from ASUS support site, but after the reboot it goes back to boot loop (1)
Am I doing something wrong here? The router is out of warranty so can't do RMA with ASUS. Do I need a special adapter for serial connection to use keyboard? Not sure what the difference is between JTAG and UART.
Can someone help?
Router is in boot loop... can't break cfe, I believe that's because my keyboard entries aren't getting passed over serial connection. This is the cable I used to make the serial connection over putty. Initially I tried with RPi 3 serial connection and experienced the same exact behavior
https://www.amazon.com/gp/product/B00QT7LQ88/?tag=snbforums-20
1. Boot loop: When I turn on the route, it goes to boot loop. If I set my PC ip to static 192.168.1.x, I am able to ping the route for ~10 seconds when it's waiting for TFTP server start and then starts timing out when the router reboots. I've attached the log here with name normal.txt. I see these lines in the serial console, but keyboard input doesn't work to interrupt the boot.
External switch id = 5075
*** Press any key to stop auto run (5 seconds) ***
...
Hit ENTER for console...
2. Rescue boot: When I try rescue boot, by holding the reset button and turn on the router, I see the router going to rescue mode with repeated errors messages in the console.. Attached full log rescue-boot.txt. Yes, I am able to ping 192.168.1.1 with 100TTL, no connection issues but can't access CFE in the browser. I am able to use ASUS recovery tool here and upload the firmware... I see the successful upload of firmware in the serial console but at the end of the process, the router gets rebooted and goes into boot loop (1). I also tried using TFTP client (utility, cmd line etc) and the same issue after flashing.
Enable Switch MAC Port Rx/Tx, set PBVLAN to FAN out, set switch to NO-STP.
Loading 255.255.255.255:ASUSSPACELINK ...
TFTP Server
tftpd retry
Loading failed.: CFE error -21
Loading 255.255.255.255:ASUSSPACELINK ...
TFTP Server
tftpd retry
Loading failed.: CFE error -21
Loading 255.255.255.255:ASUSSPACELINK ...
TFTP Server
tftpd retry
Loading failed.: CFE error -21
Loading 255.255.255.255:ASUSSPACELINK ...
TFTP Server
3. CFE/WPS mode??
I also tried to clear NVRAM by holding the WPS button and manually turn on the router... I do get CFE prompt at end but again can't use the keyboard to pass commands. log file wps-cfeboot.txt attached.
External switch id = 5075
Enable Switch MAC Port Rx/Tx, set PBVLAN to FAN out, set switch to NO-STP.
web info: Waiting for connection on socket 0.
CFE>
Here I am able to access the CFE boot over 192.168.1.1. I uploaded different ASUS firmwares downloaded from ASUS support site, but after the reboot it goes back to boot loop (1)
Am I doing something wrong here? The router is out of warranty so can't do RMA with ASUS. Do I need a special adapter for serial connection to use keyboard? Not sure what the difference is between JTAG and UART.
Can someone help?