Reflash using unirom ROM restoration menu should do the trick.

4.7kohm resistor should go just fine.

But you still have the problem of reading a backup?

If WE is floating that can cause you issues. Have you tied it high through a resistor?
That's the only thing I can think of if you are certain the connections are correct.

Sorry my reply was a bit curt. Yeah xlinkusb only works with Caetla from what I've tried. Also it was quite limited in what it could do as not all Caetla functions were implemented. Unfortunately the only route is with a parallel port for xlink use currently. You can do it with a modern machine you ...

No it was designed to be used with Caetla, that's it.

The WCH372/5/6 devices are excellent for the price and offer fairly quick communication however they are bus interface so require a few modifications to an Xplorer to get working.. That's what I am currently working with and have had great results so far, with speeds way beyond what an Xplorer or ev...

Hey nice work. Looks really tidy

If there were usb options available for n00brom I would agree.

However for a solution that is able to use usb simply, again I would stand by unirom as it stands

Unirom is probably the best option at the moment.

Yes it's serial but it does high speed transfers (around 500kbit/s) and has exception handling etc. Also it's open source

That's the aging disk test.

See here http://www.psxdev.net/forum/viewtopic.php?t=995

Edit: apologies.. no its not. There is some info on that disc on redump though

It's s command line application, you run it from the command prompt.

If you run it without any switches it explains what the options are with a bit of help

Run at 3.3v where possible

If you mean psxserial yes it is. However it's very limited and slow

You can boot the unirom disc and have more functionality and faster transfers with the unirom disc and Nops.

That link just looks like a USB plug? That wouldn't have any use in this case.

Either the first one you mentoned or I tend to personally recommend the spankfun ftdi breakout but it's more expensive.

It should work okay it's compatible.

WCH stuff is normally alright too, fairly reliable.

Look on here, lots of threads in the hardware section.

Essentially you need a link cable and a USB UART, chop the plug off one end, work out which colour wires are Rx/tx and gnd using a multimeter.

Then connext Rx to tx on the UART, tx to RX and gnd to gnd. That's it.

Depends on your definition of expensive, I think uneconomical would be more apt. You could go to a guy in the US that makes them and pay $80 or buy a link cable and make it yourself.

I used to sell them a while ago, someone contacted me recently and I am building them one.

If you are UK I may have a spare half link lead and could build you one although would need to check if I have the requisite parts. You are looking at around £21 delivered in the UK

You need a serial cable. The port on those carts is not parallel compatible.