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[OPEN] Micro-USB/Type-C Port Mod for Vita PSVita 1000

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PhdInLearningCurves
Posts: 4
Joined: Mon Jul 27, 2020 3:12 am

[OPEN] Micro-USB/Type-C Port Mod for Vita PSVita 1000

Post by PhdInLearningCurves » Mon Jul 27, 2020 4:11 am

Hello all,

To be brief I am in the process of modding my Vita to add a USB Type-C port instead of the microUSB mods that I have seen. Technically speaking on paper there should be no problem with this as Type-C is backwards compatible. You simply just need to wire only VBUS, D+, D-, and GND and you wouldn't use CC1/CC2. However, I've hit a snag in my process, it may be possible that I've damaged a fuse on the board?. I'll try and break all my problems down into key points:
  • What gauge wire is used for this and what is a good supplier that ships/sells it to the US? I only have 30 AWG on hand (one is a solid wire, other is threaded) neither of mine seem to be thin enough to get a proper solder. I managed to read somewhere that 36 AWG is used, but Amazon only goes up to 36 AWG and I can't find and 36AWG that is is both solid wire and coated.
  • Do I really need pull-up/pull-down resistors on CC1/CC2 pins of my Type-C connectors? I have two Type-C breakout boards. One features the 5.1K ohms resistors already in place. It also has a nice pinout already in line for easier/quicker solderin. The other breakout board has none and is significantly thinner/easier to place. So far I have only used the one with resistors for safe testing.
  • Is it possible to have stripped the pads on the microchip/alternate solder points used for D+/D- on the Vita motherboard? I could not get anything to stick while soldering and recently ordered a smaller microscope that will be here in a day or two in order to verify. I eventually opted to solder directly to the multi-use/charging port pins and it was much easier. On that note...
  • My Vita no longer charges even using the normal port after soldering. It still turns on and everything else appears to work, but I'll have to go back with my microscope to check for possible bridging as I think that may be the issue? I am also concerned that it is a possibility the fuse labeled "SB" was damaged where you connect V+/VBus to. If so what is the actual module name so I can desolder and replace it?
I'm not the best with a soldering iron, but I wouldn't say I'm a beginner either. I still have a lot to learn (obviously) and I'd like to learn more about this. This is the smallest device I've worked on so it's hard for me to troubleshoot and figure out what's going wrong or what should be done. I've worked on modding other devices before usually just modchips though, so I'm kinda new to microsoldering. I use a Hakko FX888D with seemingly the smallest tips I can find and the seem to be just small enough, but maybe there is something smaller and more suited for the job? I'll post pics when I get the chance, atm I have a lot of flux to clean before I can get a good pic (non-corrosive, used it on plenty of other projects with no ill-effects).

I know this is a lot of questions to process, but please help where possible, any help is appreciated.

The USB-C breakout boards being used:
Image - No pull-down resistors
Image - With pull-down/up resistors

Reference images I've been using for pinouts: Image
Image
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niklg3
Posts: 47
Joined: Wed Apr 04, 2012 8:23 pm

Re: [OPEN] Micro-USB/Type-C Port Mod for Vita PSVita 1000

Post by niklg3 » Mon Jul 27, 2020 4:04 pm

from the photos everything looks ok, I don't understand why you want to change USB, the job is done well I'm sorry it doesn't charge the battery.
data is transferred?
is detected by the computer?
if you connect USB of the "life" have you checked if there is power in the USBc socket?
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PhdInLearningCurves
Posts: 4
Joined: Mon Jul 27, 2020 3:12 am

Re: [OPEN] Micro-USB/Type-C Port Mod for Vita PSVita 1000

Post by PhdInLearningCurves » Mon Jul 27, 2020 10:26 pm

Sorry for the misunderstanding, those images are not mine. They are of someone else's mod. I can not take an accurate picture right now until I get a proper microscope.

PhdInLearningCurves
Posts: 4
Joined: Mon Jul 27, 2020 3:12 am

Re: [OPEN] Micro-USB/Type-C Port Mod for Vita PSVita 1000

Post by PhdInLearningCurves » Tue Jul 28, 2020 10:55 pm

I got my new microscope today, I de-soldered everything to take pics, pins seem to be fine. However, it does look like I may have at least torn the pads on the D+/D- module. It looks like there is still some solder/a connection at the bottom of the module though so I will try and solder to that if possible.:
D+/D-
[spoiler] Image [/spoiler]

Pins on charging port:
[spoiler] Image [/spoiler]

I'm not sure why the second pic came out so bad. I'll try and re-solder then give an update as soon as I get the chance.

PhdInLearningCurves
Posts: 4
Joined: Mon Jul 27, 2020 3:12 am

Re: [OPEN] Micro-USB/Type-C Port Mod for Vita PSVita 1000

Post by PhdInLearningCurves » Fri Jul 31, 2020 9:22 pm

Update:
Good news: I got some 36 AWG wire and was able to get an a good solder on the D+/D- points and the VBUS. This was much easier with a good microscope (highly recommended)
Image

Bad News: It still will not charge from either port meaning that I likely damaged the VBUS or D+/D- components. It still turns on though and everything else works like it's supposed to.

I've ordered a replacement 3G motherboard and I will post more when that arrives.

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