Hello,
first I'm not a router programming expert, but a beginner
I installed the firmware version of the OpenWRT for my device WL-WN570HA1 (AC600), after the installation I took a copy of the mtd 6 files and I decided to go back to my device orginal firmware version but I uploaded another file on my device from WL-WN572HP3 (AC1200)
the problem is that The device lights up but nothing is working
I tried to install the correct orginal firmware or OpenWRT firmware not work
can anyone please help me to fix this problem from mtd files
here is my file mtd https://drive.google.com/file/d/1byxudaMVfQ7cQ42S4Z-uJB_SCUhf4ldq/view?usp=sharing
You can try tftp upload method to recover it. According to the guide here
Factory U-boot launches a TFTP client if reset button is pressed during power-on.
Rename the `…sysupgrade.bin` file to `firmware.bin` and configure TFTP as follows:
* Client (WL-WN570HA1) IP: 192.168.10.101
* Server IP: 192.168.10.100
* Filename: `firmware.bin`
If nothing works, then you'll have to use jtag or programmer to recover it.
Before jumping to that though you should see if the device is accessible via the onboard serial port. Disassemble it, look for a serial header or pins and connect a usb to ttl adapter to it.
If you can access uboot via serial the device should be recoverable.
Connect just the device and a laptop / PC with an ethernet cable (no other components) and fire up Wireshark to see what traffic the device sends while trying to boot?
If you can do that you may see that the device is trying to find a TFTP server at 192.168.1.1 or other address that it is hard coded to look for. If your then able to set that up (set static IP on laptop and install TFTP service) you'll be able to discover the filename it is looking for.
If that doesn't help then serial interface is the best way to see what is happening.
I hope you followed all the steps correctly. Anyway, before jtag or programmer, we have to confirm if serial works or not, if it does, then you maybe able to recover it.
I'm assuming you don't have USB serial adapter or cable. You should watch this video, https://www.youtube.com/watch?v=6eQx1LGBWkA, this is just an example of how things works by serial.
You'll have to buy a similar USB serial adapter, and connect that with router using it's serial interface. It may or may not require soldering on the router PCB board
?