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Hardware Question: Where do I get the pinout for all connectors inside a device?

Hi,
say I have a Topaz Device and I want to play with some Hardware Mods, i.e. hook up a larger touchscreen and bigger battery etc.
Where would I find information on which connector has what pinout, component ratings etc.
any pointers are welcome
thanks
Mike

[Q] Sensation USB Port Replacement?

Has anyone successfully replaced the USB port on their sensation? If so did you follow a specific guide?
I've read multiple places that the usb port is soldered onto the motherboard itself.

sromer said:
Has anyone successfully replaced the USB port on their sensation? If so did you follow a specific guide?
I've read multiple places that the usb port is soldered onto the motherboard itself.
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From a teardown video it seems it's as you say - soldered. Though the part is available on Ebay.
However, Attempting repair by yourself is quite risky - unless you know exactly what you are doing (you need to desolder the damaged one, and the solder the new one). Doing this procedure wrong could possibly render your device into an expansive paperweight.
As for a guide - couldn't find one, and if you are not an expert in soldering, I suggest taking it to service to fix it, not worth the risk IMO.

Wilson Antenna and S4 Active. Help needed

So I bought this: http://www.discountcell.com/cellular/pn/samsung_301128 antenna for my father in law. What's included with this doesn't plug directly into the S4 active external antenna port. I did some reading and found that I need an patch lead as discussed in this thread: http://forum.xda-developers.com/showthread.php?t=2442569 problem is that the antenna I bought doesn't match the connector of the patch lead. Is there another adapter I need? I'm willing to buy whatever is needed to make this antenna work with the s4 active. Any suggestions? Thanks in advance for any help with this.

NoLimitz80 said:
So I bought this: http://www.discountcell.com/cellular/pn/samsung_301128 antenna for my father in law. What's included with this doesn't plug directly into the S4 active external antenna port. I did some reading and found that I need an patch lead as discussed in this thread: http://forum.xda-developers.com/showthread.php?t=2442569 problem is that the antenna I bought doesn't match the connector of the patch lead. Is there another adapter I need? I'm willing to buy whatever is needed to make this antenna work with the s4 active. Any suggestions? Thanks in advance for any help with this.
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i dont know anything about this, but if you show me what the connectors look like, i may be able to tell you what they are to help look for a cable, unless you already know what there called.
once you know the technical name for the connectors needed, should just be a matter of putting that into google and hope there is one available.

S7 G930F USB Data Problem

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.
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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.
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Yeah, I'll do so. Or I just sell it like that, what comes first hahaha
Thanks!

convert micro USB to USB C and add a larger battery

Ok, I have a realme 1 that is dying, I have posted on the new phone thread but I do not expect to get a phone that meets my needs better in all aspects.
**What phone should I buy next?** -- Not sure what device to buy? Ask here!
Hi everyone, This thread is a continuation of this thread. This is here so you can discuss what your next phone/tablet should be, if you're not sure what to pick. Also, if you need advice as to which device is better than another, then feel...
forum.xda-developers.com
The issue is that the micro USB connector is getting worn down and the battery discharges in a few hours. Even new I used to have days on which my battery 3950mAH would be exhausted by the end of the day.
I want to do the following thing
Replace the micro USB port with a USB C port. physically my phone is a plastic fantastic and I plan to carve/shave out the few mm with a knife/scalpel and fill any voids with a combination of expoy putty and expoxy glue. My problem is how to do the internal wiring. I have done some soldering but nothing on a PCB. The most fine work I have done is patch speaker wires. Every repair person i have talked to says that it is absolutely impossible to do. I would appreciate it if someone could walk me through it.
Realme has now released phones with a 6000 mAH battery, So I propose to separate the back cover, carve any obstructions, create any posts needed with epoxy putty, and fix the battery with hot glue. Again the problem is the connections. I realize that the thickness of the phone will increase due to this and plan to fill the gap with epoxy and hot glue.
Yes, I realize that my phone is going to be a Frankenstein's monster. As long it works well I don't care.
I would appreciate it if someone could guide me

amartsg852 said:
Ok, I have a realme 1 that is dying, I have posted on the new phone thread but I do not expect to get a phone that meets my needs better in all aspects.
**What phone should I buy next?** -- Not sure what device to buy? Ask here!
Hi everyone, This thread is a continuation of this thread. This is here so you can discuss what your next phone/tablet should be, if you're not sure what to pick. Also, if you need advice as to which device is better than another, then feel...
forum.xda-developers.com
The issue is that the micro USB connector is getting worn down and the battery discharges in a few hours. Even new I used to have days on which my battery 3950mAH would be exhausted by the end of the day.
I want to do the following thing
Replace the micro USB port with a USB C port. physically my phone is a plastic fantastic and I plan to carve/shave out the few mm with a knife/scalpel and fill any voids with a combination of expoy putty and expoxy glue. My problem is how to do the internal wiring. I have done some soldering but nothing on a PCB. The most fine work I have done is patch speaker wires. Every repair person i have talked to says that it is absolutely impossible to do. I would appreciate it if someone could walk me through it.
Realme has now released phones with a 6000 mAH battery, So I propose to separate the back cover, carve any obstructions, create any posts needed with epoxy putty, and fix the battery with hot glue. Again the problem is the connections. I realize that the thickness of the phone will increase due to this and plan to fill the gap with epoxy and hot glue.
Yes, I realize that my phone is going to be a Frankenstein's monster. As long it works well I don't care.
I would appreciate it if someone could guide me
Click to expand...
Click to collapse
You know you can get a USB C chip for really cheap (compatible with the processor)? All youd have to do then is attach the ribbon cables, enlarge the port hole and test to see if power passes through with a cable. Make sure not to use too much glue, however, because when the phone heats up the glue may melt and run over the motherboard, resulting in a ruined phone.

Varis2X21 said:
You know you can get a USB C chip for really cheap (compatible with the processor)? All youd have to do then is attach the ribbon cables, enlarge the port hole and test to see if power passes through with a cable. Make sure not to use too much glue, however, because when the phone heats up the glue may melt and run over the motherboard, resulting in a ruined phone.
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I was already prepared to enlarge the opening, please tell me about this chip. where Can i find more information on that?

amartsg852 said:
I was already prepared to enlarge the opening, please tell me about this chip. where Can i find more information on that?
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There is actually a YouTuber that I conveniently forgot the name of... But he does DIY projects like this, like adding a headphone jack to iPhone 7s and stuff. Call if modding. But his parts come from Chinese marketplaces. I would suggest you research a USB C component chip. Not sure how old your phone is but they are basically universal depending on the OS supported hardware (like Android 9+ supporting QC3.0).

Thank you again for replying. I do not need quick charge. It came with 2A 10 W chip, and that's enough. Cannot I connect the USB C port to the input on my phone. Most USB C implementations are USB 2.0, SO that SHOULD be 4 pins and 5v at max 2 A.
Problem is that that the repair centers are assuring me that is not the case.