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The initial test is always to swap out the default regulators and pump in your custom power, so that was the first thing I tried. Once I confirmed 5v, 3v5, and 2v5 lines, I got to chopping thanks to @Stitches "theoretical trim". I had marked it out, gave it a once over, and fired up the dremel...

Greetings all! While this is my first entry into the BitBuilt Contest, I have made a GWii Portable and a PS2 Portable thanks to all the great guides and resources available here from the community. I enjoy playing PS1 games on the PS2P, it isn't quite the same, especially since it requires...

Can you provide a clearer image of the memory card, preferably from the top? It looks to me like you have 3v5 connected to the fifth pad, which is the Ground plane (pin 4).

Darn. I'm going to hazard a guess that it's something with your PMS. Might have to wait for someone more knowledgeable to come along, or if you have discord, jump on the BitBuilt one and chat with some of the peeps there

I wouldn't think so, but any chance you can shorten your wires to be no more than a couple inches (~5cm)?

Okay, cool. So looks like something to do with the PMS.Can you check the output voltage on the 5V and 3V3 tails, when the console is powered off, and then watch the measurement as you power on the console. Trying to see if the voltage drops too much causing failure to boot. I'm guessing it's the...

Hmmmmm. Apart from the capacitor you rewired, there isn't anything else removed? If so, and you disconnect the PMS, does the console boot normally with a power supply plugged in? I assume so, but good to check. If it does boot, that would rule out the motherboard and direct the cause to either...

And a game cartridge?

And just to check, you are plugging in a cartridge and a jumper pak when you are powering it on, yeah? EDIT: Do you have one of your batteries hooked up to the "CHARGE" point? They should be in parallel, both positive and both negative connecting to their respective locations on the PMS.

https://bitbuilt.net/forums/threads/the-advanced-n64-trimming-guide.3992/#post-44871

Looks like you're missing a couple of 3v3 points being wired up. You need to connect all 3 of the individual 3v3 points on the N64

Photos are a great way for us to help diagnose the issue. Are you able to attach some? (PS, you can resize the photos in your post if they are too large)

Its a standard device, so there's plenty of tutorials online. I ended up using v5.50 of MPLAB IPE to flash the firmware for it. You could also use Gman's since that is similar but has LED code.

Any chance you can direct me to where I can find it? I can't seem to locate where it is hosted.

The PIC is a programmable IC and can be programmed by a few different programmers. Many are expensive, but I can confirm that the Pickit3 works, but only with MPLAB IPE v5.50 (or v6.00, I had both) The pickit3 needs to be flashed with the firmware required to program this particular PIC, and...

One battery should be fine, but parallel is the way to go. Have you programmed the PIC? If so, make sure you short the battery pad to ground, which will tell the PIC to enable voltage output.

Those are sold by one of the BitBuilt members. They also sell some components and other shells for various projects. They have access to an injection mold for these, so they can be higher quality than a 3d printed (FDM) shell. I have one of their PS2-WiiU back shells, and the quality is fine...

This module was the one I used (ordered blank boards, then assembled): https://bitbuilt.net/forums/threads/ps2-pms.6730/ It works great, but does require a bit of modification to use the charging circuit. I ended up using an external charging board (like this one), which got a bit warm and needs...

Looks like a fantastic alternative, and it's great to both have a drop-in custom board as well as an alternative firmware for the standard board. In my personal opinion, I would find it more useful to have Left analog and Select over the two motor pins, as I have yet to want to integrate any...

Fantastic! That's excellent to hear. Best of luck for the rest!