Watchguard Firebox M400/M500

jriofrio

@korenchkin .... Hello everyone, just wanted to mention that the cable (the rj45 to db9) and a new CF card didn't work at all. Same results.
So, my only option is to flash the BIOS directly.
I was looking for guidance here (I was reading through 5he comments) but I only saw mention of the success. I was looking for a guidance and details that I should pay attention to the process.
I downloaded the program and ordered the kit.
If there is any details and or advice in how to proceed, I will be please to hear it.
Good day.....

korenchkin

@jriofrio if by the kit you mean ch341,that is one awesome device,just some usual warnings,i use neoprogrammer (i hope the name is right,not at my pc),if you search for it,watch out for viruses,same for drivers,maybe use zadig(not sure),also watch for polarity/orientation of chip...
Neoprogrammer has detect chip,once it says some name,it might need to confirm/select of several choices

The chip should be 8pin (2x4 pins),should be some 25xxx (mx25xx or similar,google for details,it will be probabli 64mbit nor flash)
The chip is either smd(usuallly)-use clip,red wire is one/dot,i would clip it first,then connect it to programmer and then usb....

One important thing-use usb cable,you can plug it directly,but cable is def better

I use the kit for different things and it just works(severeal accespoints,some motherboards)...

Once you are connected,just read it and save,then either read again,save,compare,or button verify....and then you can play with flashing

Off course without power! (Better disconnect from mains,or if you have good+single ground(with flashing pc),off should be okay

And once you have the bios,do some comparison with new bios file,i suggest total commander file compare(one of the best for binary comparisons),and see if there are similar beginnings(once compression starts,it will be completely different,but boot block should be similar,at least header...or if you are stuck,upload it somewhere and we can take a look

Edit:if you want to train before,open some old wifi accesspoint or motherboard to train..if the chip is 24xx,it is just a small eeprom(other position on socket,you'll see markings),but otherwise same...