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Re-wiring broken connector for data recovery

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This stick has 5 PINS which do not follow normal USB stick convention. I need to resolder a 4 pin USB-A cable to the board and need to know which pins are VCC, GND, D+, and D-,.....I have buzzed out with a meter but come up with nothing except the middle pin pictured is GND ?? go figure...anyone know anything at all about this ? SANDISK will not release any pinouts or schematic

Update (05/27/26)

Photo with RED must be the 4 PIN USB A 2.0 connections.....unfortunately it is snapped off the board taking half the tracks with it by the looks. I am locating the same stick to recreate the tracks, connect the 4 x USB wires, and hopefully recover data !!

Thanks everyone for your help !

Contestado! Ver respuesta Yo también tengo este problema

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@russ1kimberley take a picture from the other side as well. Let's see what that looks like.

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2 new pictures should be up top - sorry best quality I can do at moment. with damaged pins removed, there is no other 4 pins, it was just a standard sandisk 64GB stick, I guess yeh it was USB 3.0.....but USB A anything only uses 4 pins so I'm stumped....I'm too scared to connect power to anything until I'm sure.....really need to know where the 5V input is .....sandisk have no info. you can see I pulled one of the pads but I can sort that easy. cheers

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HEY YOU KNOW WHAT - I can see the 4 pin section snapped off the end of the board LOL. this is how it was given to me, and thanks to you old turkey I think I can see where the 4 pins go !!! what do yoiu think

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@russ1kimberley absolutely! You got it fixed now

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@russ1kimberley just solder your USB cable to the VIA's You just need it for as long as it takes you to recover the data.

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@russ1kimberley - Do you have the mating side or know what the device was this came from?

USB 2.0 & 3.0 use the same USB-A interface and are technically a five pin interface! Four active and one passive (chassis Ground) so if we assume the middle is chassis ground then mapping across you have from the middle your two data lines and the two outermost is ground and power.

Looking at the circuit board is a bit hard as the images resolution is not fine enough. Lastly, finding the pinouts of the chip might help in ID'ing the lines. The fact the bottom two have what looks like resistors part way makes me think these are the data lines so then the top two are the ground and power.

So without getting better info it will be hard to tell what lines are what without guessing here.

Reference: USB Pinout Guide: Meaning, Types, Functions, and Wiring Explained

Update (05/27/26)

@russ1kimberley - I think that's the ticket! Here's the full USB 3 A connector pinouts!

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power is strictly within the lower four pins the upper ones are data.

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Youre a legend Danj - I now have enough info to attempt a recovery - thanks

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If you look closely at a USB 3 A connector you will see 5 pins at the very back and the std USB 2 A pins up front. Your 5 pins are the USB3 pins 5-9. This is a B connector - the USB2 pin location is diff than an A but the # are the same

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Thanks Bill. where does VCC, D+ and D- go on pins 5,6,8,9 ?..... GND is middle pin 7 which is what I have measured yes.

My stick only has the 5 pins as pictured. there is no other block of 4 pins on the stick.

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that is the only pic i had - look one up for yourself if you can't resolve it

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@russ1kimberley it doesnt go in those 5 pins, those are the USB3 pins. You are missing the 4 USB2 pins

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yeh this memory stick does not come with 4 pins. just the 5 pins pictured

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yeh cant find anywhere that shows this 5 pin wiring description for USB-A plug...., hence the post here

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Russ1 estará eternamente agradecido.
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