[Completed] Samsung Galaxy S3 USB charging problem jumper ways - XDA Assist

Hello,
The USB port of my Samsung Galaxy S3 is broken. I bought a new one and tried to do the repair. By loosening the USB port (the broken one), the connectors of the circuit board have taken off and therefore I cannot weld the new USB port on the motherboard.
I would need the complete pinout of the USB port (11 pins) as well as a diagram of the motherboard to know where I can solder bridging cables from the USB port pins to specific locations on the motherboard (which is done normally by the brass paths on the printed circuit).
Thank you
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XxXDude said:
Hello,
The USB port of my Samsung Galaxy S3 is broken. I bought a new one and tried to do the repair. By loosening the USB port (the broken one), the connectors of the circuit board have taken off and therefore I cannot weld the new USB port on the motherboard.
I would need the complete pinout of the USB port (11 pins) as well as a diagram of the motherboard to know where I can solder bridging cables from the USB port pins to specific locations on the motherboard (which is done normally by the brass paths on the printed circuit).
Thank you
forum image hosting
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Greetings and welcome to assist. Unfortunately this isn't the sort of thing we do at assist and would have no idea where to get the diagrams. It is probably best to contact a service centre for advice
Regards
Sawdoctor

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Motherboard USB broken

I have a i9003 that have removed the USB port and the tracks are broken.
There would be a way to solder a new connector knowing where to solder the wires would have to load and have USB connectivity?
Best regards.
LoBoHEAT said:
I have a i9003 that have removed the USB port and the tracks are broken.
There would be a way to solder a new connector knowing where to solder the wires would have to load and have USB connectivity?
Best regards.
Click to expand...
Click to collapse
better way go to samsung service centre.

[Q] Need help in fixing my broken tablet cable.

Need help in fixing my samsung galaxy tab 2 7.0 charging/usb cable
Here's my situation,
1. I own original cable and soon tossed it away because the cable has got snapped wires and I find it difficult to solder to the pcb board.
2. I bought another cable, but again, it's having charging issues after 4 months or usage. I'm started to think that these type of cable is easily broken. So I wanted to fix the cable myself by open it up and resoldering the snapped wires in order to save money. The 2nd cable I bought has got no pcb board attached inside. Just pins and solderings.
For now, I just want to be able to charge using the original charger and be able to transfer data files using my pc. So I need help to someone to tell me which wire (color) is attached to which pins. 4 different colors, Black, Red, White and Green. Thanks before.
Here's the look of the 2nd cable when I open it up (removed the remaining snapped wires)

Samsung Multimedia Dock - Pinout Guidance Required

Hello,
So I have the following Samsung Multimedia Dock, which was working fine since a year or more. It was used pretty much regularly with Galaxy SIV (either with stock or extended battery ). I guess after prolong usage and atmosphere condition the solder point on the micro USB connector internally got dry and got detached. Hence it stopped working.
Hence when opening it to have a look inside, I lost the sequence of 8 wires connected to the micro USB connector on both sides (4 on each side). The pins on the micro USB connector are marked numerically 1-8 , however I cannot see the same number on the main PCB, so I am at a loss to understand how to get them solded again , in which order and sequence.
It is I guess a 11 pin micro USB connector because the dock had HDMI, Audio Out, and USB in (OTG) connections and power charging all at the same time.
Case cracked open and the main PCB and micro USB connector are apart.
Close up of the PCB
PCB and microUSB
MicroUSB connector call it side A (4 small pin out number from 1-4)
MicroUSB connector call it side B (4 small pin out number from 5-8) (I was able to see which wires were connected on this side so I marked this side with a blue marker and did the same with the 4 wires loosely held on this side after detachment)
PCB wires close up. Total eight wires. Starting from right the order is Black->Yellow->Green->Red->Yellow->Black->Red->Green, each of the wire needs to go to a pin 1-8 on the micro USB connector.
I know there are no published schematics for this PCB and 11 pin Samsung connector, however I am relying on the electronic expertise of the gurus around to help and guide me.
Thanks for your guidance.

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Hi! My mother's S7 is not recognized by any PC right now. Before I order a new USB PCB I'd like to ask for some help here. The symptoms are:
- Charge and fast charge fully working
- Everything inside the phone is workin, not a single scratch
- When I plug in to any PC, no data mode transfer appears, neither under quick settings, just charging.
- Windows doesnt recognize anything when the phone plugged in, seen on device manager.
Did you install the Samsung USB drivers?
9 times out of 10 it is the USB port. This can be replaced by dismantling the phone and connection a new USB ribbon.
If you have tried this and ruled out the port, I had one where a dodgy charger had fried some components between the USB ribbon connector and the multiplexer IC. I had to replace components ZD8008, ZD8008, R8019 and R8020. These serve as input protection on the USB data lines.
Someone with microsoldering repair experience will be able to replace these for you. You be no more than 75 Euro. It does involve dismantling so may void warranty/water resistance.
BossHogg12 said:
I had a similar problem - turned out a dodgy charger had fried some components between the USB ribbon connector and the multiplexer IC. I had to replace components ZD8008, ZD8008, R8019 and R8020. These serve as input protection on the USB data lines.
Someone with microsoldering repair experience will be able to replace these for you. You be no more than 75 Euro. It does involve dismantling so may void warranty/water resistance.
Click to expand...
Click to collapse
I guessed so. Where can I find this components? Are they smds resistors, capacitors? I know microsoldering but does it deserve the effort? I mean, can I found a USB pcb replacement and just replace the whole piece?
Thank you very much!
EDIT: Like this one
EDIT2: I missunderstood your first line...I haven't already tried to replace the usb pcb. I think I'll try and if it doesn't work, well... I hope not -.-"
I draughted this reply before I saw your edit; sounds like you know what to do though: :good:
Sorry, it never occurred to me that you hadn't tried a new USB port flex yet. 9 times out of 10 it is that. Get one to try; fitting it is a pain because you have to separate the screen from the mid frame for the back/app button backlights but you can test it without removing the old one. They are very cheap and available on eBay etc.
If the new USB doesn't help, the fix is probably the microsolder repair I described above. Those components are in the main PCB so a USB daughterboard swap won't help.
BossHogg12 said:
I draughted this reply before I saw your edit; sounds like you know what to do though: :good:
Sorry, it never occurred to me that you hadn't tried a new USB port flex yet. 9 times out of 10 it is that. Get one to try; fitting it is a pain because you have to separate the screen from the mid frame for the back/app button backlights but you can test it without removing the old one. They are very cheap and available on eBay etc.
If the new USB doesn't help, the fix is probably the microsolder repair I described above. Those components are in the main PCB so a USB daughterboard swap won't help.
Click to expand...
Click to collapse
Yeah, I'll do so. Or I just sell it like that, what comes first hahaha
Thanks!

board to board connector extension

Hello!
I am looking for an extension cable to my phones camera. I believe it's a board to board 30 pin connector, but I am unsure of further details. Can anyone help me out and identify what connector this is?
Cheers
here's a stack exchange thread you might care about: https://electronics.stackexchange.com/questions/367861/phone-camera-connector-types
as for if they make extensions cables, well... you might have to make your own

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