I tried flashing open wet on my wa1201 v2 ap and it tripped out halfway in the flashing process.
It's got a w25q128c eeprom. I've desoldered and taken a dump of it using hxd I've got some legible writing in there like the partition tables and product number versions and special id. So I'm guessing half the file is ok with all the hardware ids. It's just the os side that's corrupted.
Can anyone send me their firmware dump from the eeprom so I can try repair this . I can send my bin file if anyone can help
Flashing OpenWrt should not kill the bootloader, so it would be easier to attach UART and recover via the serial console - or is there a reason why this isn't going to work?
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this is what im gettting in the terminal with uart out to rx and uart in to tx, i get nothing from this until i connect the 3.3v to the programmer but im guessing this isnt the right process
ive set the baud rate to 115200, 8N1 as per the uart instructions on the openwrt page
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thats what i get when i switch tx and rx around uart out to tx and uart in to rx
Again, please do not connect VCC = 3.3V, only Rx, Tx and GND. I checked the wiki page again, the pinout should be:
Tx to TP_UART_IN
Rx to TP_UART_OUT
Gnd to TP_GND
115200 baud should be correct, but it doesn't hurt to try 57600 baud. The CH341 programmer is, unfortunately, not the best serial converter - some even have a hardware bug where they output 5V even if the jumper is set to 3.3V. If you have access to a different USB-TTL adapter, you might want to give it a try.
Since the device page refers to the C6 v2, you might want to try the TFTP recovery method mentioned there.
Ok cool I'll double check my connections and I'll leave the 3.3v disconnected. I've done the 3v mod on this programmer as I was getting 5v on all data lines out of the box. With the mod I'm getting a nice 3.3v max on any of the lines
I'll mess about with it tomorro as I've left it at work. Thanks for the help tho I'll report back tomorrow
I read somewhere that the baud rate is actually roughly 120000 bits and not 115200 as it should be - I assume the TTL converter has problems with that if it's really the case.
Anyhow, the bootloader is clearly alive and you should be able to get away with flashing via TFTP if you manage to get useful output.
The full dump works, too, if someone provides you with a file. Just be careful to replace the MAC address.
Right I've had a 3 crack at using this tftp server thing. Turns out the issue was the windows firewall blocking it. Managed to get it working firmware downloaded and access point installed it ok.
