Database Users

USB connector replacement

Hi there
I have broken recently the USB connector at the bottom of the device. Managed to replace it with a good one but one of the pads is broken of the board. Has anyone got a schematics of it or know where the USB connection point are? It does charge but is not recognised by ActiveSync
THanks

Here you have the Charmer Service Manual:
http://mikechannon.net/PDF Manuals/HTC Charmer_Service_Manual.pdf

thanks for that. However, there is no schematics in this manual. I have already replaced the connector but one of the pins has come of the board. Need a point on board to connect it to. It is the second pin from left looking at the connector facing you.
Thanks

Got to ask,did you get the same USB connector? as i looked and could not find the same one,in the end i replaced it with a smaller one,as for your problem,I have taken mine apart and had a good look round,on the underside there is what looks like a point you could try,it's right where the second pin is,how you would solder there is a tuff one but thats the only thing i can see.

Thanks to your reply. I have notice it and did solder but did not do anything. Can you possibly buzz the connector to the point around and just check which one of them to connect to. I have tried with MDA I but it is complitly different board.
Thanks

I will have a try for you over the next few days,kinda busy with a move going on,just to make sure i'm looking at the right pin,it's the second one along as you look from above going left to right?

failing to load the zipped pic. Only up to 2 MB - should be 8 mb max
As you are looking at the pins connected to the board it is the second one from left. For other people's use if you get all 3 ot them on pic should somebody else need it. If you cannot get the pic I will try to upload the pic tomorrow.
Thanks for your effort

the pic of broken pad
As promissed here is the pic. It's the second pad from left
Thanks

Lonegunman, are you still with us?

Still here, have done a few tests to see if i can pin point a place for you but not had much luck, problem being my one is working, what i will do at some point is remove pin 2 from mine and see if i can find a point, just for your info the pin you are missing is the data -, so as you say it will charge but not sync.

thanks..... Dont think you need to remove it. If you got the multimeter you can measure resistance from that pin to anything around it. when resistance is zero it is defo a point I can connect it to.
Thanks for your effort once again

anyone willing to help please

please...someone has an open charmer. All I need is someone to buzz the second pin to a place on the board

Sorry been busy on loads of other thing (repairing a plasma TV is no fun i can tell you)anyway if your uk based PM me you address i should have a spare one i can post over to you for you to try and work out what you need.

pm sent. thanks

Special thanks to lonegunman who kindly sent me his MDA and help to repair it. The data pin connects to SM resistor just above it.
Thanks lonegunman again

Vibrant T959 Only Turns On With Charger Connected

I have a Samsung Vibrant T959 TMobile US with 2.1-update1, Baseband T959UVJI6.
The battery is fully charged, it registers in the phone as fully charged 100%, but when I hit the power button I get a progess wheel that gets stuck, then the phone just turns off. It never gets passed that wheel, it only displays for a second then dies.
However, when I plug in the USB and hit the power button, it comes right up like it should. Then I can unplug the usb and use the phone just fine. Its almost as if I need to jump-start the phone with a power source.
I have reset the phone, even re-flashed the stock firmware using Odin. Same results. I have even swapped batteries with a buddy just to see if that was the case, but I still got the same results.
Any advice or suggestions is GREATLY appreciated. Thanks Very Much In Advance!

Anybody? Any ideas?

Well, that is new to me...
I'll preface with, I have no clue how/why that is happening. But, this is what I would do:
1 - If really opposed to rooting, I'd call T-Mo / Samsung and get a replacement.
2 - If I liked my phone and wanted to make it better, I'd root it and flash a custom ROM. It likely would take care of the issue, as it clearly is not a hardware thing (well, I say clearly).
Worst case with #2, ODIN back to stock and then do option 1.

possible solution
also it says "USB connected" even when cable is unplugged? I had similar problem.. I tried everything, flashing, changing batteries.. none of that was useful. Then I find some post on some forum that says it might be corrosion, so i scratched my USB with thin wire and everything worked fine, but also scratching USB I was doing one more thing. In my opinion, I think that it's not corrosion. I think that USB is slightly bent (middle part of it), try to bent it in other direction, possible that it's too close to edge. That solved my problem. Tell me if this helpful for you, sorry about my english

we87 said:
Anybody? Any ideas?
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did you ever figure out? im in the same boat...
admirh said:
also it says "USB connected" even when cable is unplugged? I had similar problem.. I tried everything, flashing, changing batteries.. none of that was useful. Then I find some post on some forum that says it might be corrosion, so i scratched my USB with thin wire and everything worked fine, but also scratching USB I was doing one more thing. In my opinion, I think that it's not corrosion. I think that USB is slightly bent (middle part of it), try to bent it in other direction, possible that it's too close to edge. That solved my problem. Tell me if this helpful for you, sorry about my english
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i think i can get what you are saying, cleaning the usb port on the phone right??
BUT how does this affect turning the phone on?? if usb port is rusty, it will only affect charging, not turning the power on?

I experienced this identical issue last fall -- the USB would always say it was connected, wouldn't startup unless connected to actual USB, but otherwise worked fine.
Take your phone apart and look at the solder joints on your microUSB port... mine all had cracks in them or had broken free. I re-flowed the solder while holding the port down and it resolved my issues. (put on some flux, and run a hot soldering iron across the joints, clean up... it's not very difficult. just be sure you don't short out any of the pins.) I also added additional solder to the four points that just hold the mircoUSB to the circuit board. It's been rock solid since

Rahhstah said:
I experienced this identical issue last fall -- the USB would always say it was connected, wouldn't startup unless connected to actual USB, but otherwise worked fine.
Take your phone apart and look at the solder joints on your microUSB port... mine all had cracks in them or had broken free. I re-flowed the solder while holding the port down and it resolved my issues. (put on some flux, and run a hot soldering iron across the joints, clean up... it's not very difficult. just be sure you don't short out any of the pins.) I also added additional solder to the four points that just hold the mircoUSB to the circuit board. It's been rock solid since
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that sounds very difficult actually.. as I dont own any of the tools
anywhere cheap to recommend?

lazi punk said:
that sounds very difficult actually.. as I dont own any of the tools
anywhere cheap to recommend?
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See if there is a TV or electronic repair place still in business in your area. Or post an ad on CL asking someone with knowledge and skill to do it. Be careful they aren't an idiot just wanting 20 bucks and happen to own a soldering iron.

lazi punk said:
that sounds very difficult actually.. as I dont own any of the tools
anywhere cheap to recommend?
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Click to collapse
you could see if Cell Phone Repair/ is near you and describe to them what you want to do.

I would go through these guys they are top notch helped me when i soft bricked my wife's phone. He even convinced me that i could fix it myself when i was ready to send it to them for a jtag.
They can replace the usb plug if thats the issue.
http://mobiletechvideos.mybigcommerce.com/samsung-vibrant/

I would test to see if my battery is bad first before i went about resoldering, it could easily be a bad battery.

Xdogg said:
I would go through these guys they are top notch helped me when i soft bricked my wife's phone. He even convinced me that i could fix it myself when i was ready to send it to them for a jtag.
They can replace the usb plug if thats the issue.
http://mobiletechvideos.mybigcommerce.com/samsung-vibrant/
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thank you for the response. I definitely think the usb port is an issue. what is a jtag? haha
ferhanmm said:
I would test to see if my battery is bad first before i went about resoldering, it could easily be a bad battery.
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No my stock battery is charging and i did buy a separate battery. same issue.

[Q] asus vivo tab smart fix

i bought my tab like 1 month ago and in the second day i bought it my cat droped it down from the desk to the floor breaking the digitizer i gave it to the company to replace it and i waited 1 month and they told me that they coudn't find the replacement part when i got home i but it to charge but nothing happent called them asked them if they had opend it nope they havn't then i opend it i found the usb power cable was cutt off if any one has picture on how it was or has the layout of the cable to the micro usb could u please show it to me so i can fix it and i can send pictures so other need to open and fix it know how thanks

... What?

ahmedoso said:
i bought my tab like 1 month ago, and in the second day i bought it my cat droped it down from the desk to the floor, breaking the digitizer.
I gave it to the company to replace it, and i waited 1 month, and they told me that they coudn't find the replacement part. when it got home i put it to charge but nothing happend.
Called them asked them if they had opend it. nope they havn't then i opend it.
i found the usb power cable was cutt off.
if any one has picture on how it was or has the layout of the cable to the micro usb, could u please show it to me so i can fix it and i can send pictures so other need to open and fix it know how thanks
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The last paragraph is beyond my repair powerz.
I think he needs a new USB cable.

I didn't catch a word of that.
Use punctuation if you want help because otherwise we don't have a clue what your on about

mcosmin222 said:
The last paragraph is beyond my repair powerz.
I think he needs a new USB cable.
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i bought another ribbon cable with 22 pins and while soldering it to the board of the usb the solder on it made bridges in some places and other places the solder came out it and dosn't adhere to the board any more so i am asking for the layout of the board so i can directly solder the ribbon cable to the micro usb pins

ahmedoso said:
i bought another ribbon cable with 22 pins and while soldering it to the board of the usb the solder on it made bridges in some places and other places the solder came out it and dosn't adhere to the board any more so i am asking for the layout of the board so i can directly solder the ribbon cable to the micro usb pins
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Click to collapse
You do realize those plans are secret, right?

SixSixSevenSeven said:
I didn't catch a word of that.
Use punctuation if you want help because otherwise we don't have a clue what your on about
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Click to collapse
all i want to say is that inside the tab the ribbon cable connecting from the micro usb to the board was cut off and it must be soldered to the micro usb pins i need to know which of them is the data + and data - and the ground i already know the vcc and i think i got the ground right other than that i am in total mess thanks for replaying and srry for my english

mcosmin222 said:
You do realize those plans are secret, right?
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not a single clue they are and if they had good guys that can fix it in egypt i have no proplem the thing is i had it only for 1 day frastration has got into me

/If/ (and that's a big if) it's a single layer board (which I really doubt) you can follow the traces from the pads to whatever. Else, I doubt you'll be able to get it fixed.

netham45 said:
/If/ (and that's a big if) it's a single layer board (which I really doubt) you can follow the traces from the pads to whatever. Else, I doubt you'll be able to get it fixed.
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nope it is not single layer ,But i can fix it if just anyone told me the voltage of them

i do thank you for wanting to help And srry for missing your replay up just saw it now

What a mess.... lol i can only say that ....

tell me about it

Phone charger probably burned my S5 overnight

Hello everyone,
I have a problem with my Samsung Galaxy S5 and I was hoping to find some help here.
When I got up this morning I unplugged my S5 from its charger. However, it was turned off which is usually not the case as I usually don't turn it off. After trying to switch it on for several times and failing with it, I asked Google for help.
What I found after some research was a hint that it might be a problem with either the battery, the charging cable or the mainboard that has been damaged/burned.
Long story short, after some testing (tried a new battery and charging cable) and going to two different repair shops, it turned out it probably is the mainboard. (I'm writing 'probably' because I don't trust those shops 100%. I left my phone at the second shop for about 2.5 hours though, for error diagnostics).
Nevertheless, what I want your help with are these three questions:
1. If there really is a problem with the mainboard, how can I find it all by myself? Is there a way to tell it apart? And is there a way of telling which (more or less) exact part/entity of the mainboard has been damaged?
2. Let's say the mainboard is damaged. Is it possible to fix it? And by fixing I don't mean to just replace the mainboard, but really fixing it. (Ofc I know it might depend on the part that has been damaged, this is why I asked Question #1).
3. Assuming there is no (feasible) way to repair that mainboard. How can I possibly save the data stored on the internal memory? Is there any Software available that can still read the storage? Or do I have to physically move the memory chip to a functioning mainboard, e.g. by soldering?
Any help is appreciated. Thank you in advance!

Eclipsian said:
Hello everyone, I have a problem with my Samsung Galaxy S5 and I was hoping to find some help here...
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My personal opinion would be that one or both of the following may have happened.
1) Bad Charger - Chargers can go bad without any warning that resulted in your battery going dead.
2) Bad Battery - Also can just go bad suddenly or over time.
The motherboard of your device has a type of regulator that will only allow a certain amount of voltage/amperage to pass on to the battery. It's extremely rare for a proper charger to kill a motherboard (unless jumper cables were involved LOL!).
Your best bet is to replace both the battery and the charger but, this is only a suggestion/recommendation.
I wish you the best of luck!
~~~~~~~~~~~~~~~
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Ibuprophen said:
I wish you the best of luck!
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Click to collapse
Thank you very much. Unfortunately using a new battery and a new charger didn't solve the problem. And my charger is still in use for my backup phone, which is a Samsung Galaxy S2, and it's still working fine.
So it appears it really narrows down to some physical damage on the board.
After some more reading I found out that professional data recovery uses eMMC adapters for their SD card slot, as eMMC is downwards compatible to MMC. Unfortunately those adapters come at a cost of 85-230$, which of course is still cheaper than paying for professional data recovery, yet too expensive for having no actual clue how it even works. I still didn't figure out what the data will look like once I get access to the memory chip. Will I have to use an android emulator to get to the data? Will I have to use some special recovery tool to read the memory? Or is the eMMC already formatted in such a way that Windows can easily read it?
Anyway, what I'll try now is the cheapest method that came to my mind: mounting the eMMC on some sort of USB stick, that I found on aliexpress for 5$+shipping (it's called "USB3.0 eMMC 153 169 U disk PCB NS1081 main controller without flash memory for recycle emmc emcp chips").
I hope this will suffice to read the memory, somehow.
Any comments on this?

Eclipsian said:
Thank you very much. Unfortunately using a new battery and a new charger didn't solve the problem. And my charger is still in use for my backup phone, which is a Samsung Galaxy S2, and it's still working fine.
So it appears it really narrows down to some physical damage on the board...
Click to expand...
Click to collapse
Unfortunately Motherboards can go bad suddenly too but, there's a few options.
Option 1) You can try buying a USB JIG from eBay for $3-5, it's a tool designed to force your device into download mode. It isn't guaranteed to work but if it does you can flash the firmware. If it doesn't then you only lose $5.
Option 2) You can see if there's a friendly and helpful individual at an official service center for your device for a JTAG service. Though it isn't guaranteed to work but, some may do it for nothing while others can charge up to $50 +/-. The fees are all individually determined by them. Some have the JTAG service there while others require it to be shipped to another shop to repair them and then ship it back to you.
Option 3) You can always purchase another compatible motherboard and put the new one in your device. This is an option you can do yourself if you're careful.
These options/suggestions are the best that I can think of at this time and I hope one of those will work out for you.
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

[Q] Charging ways - Charge jumper

I have a OnePlus 5 with broken usb-mic connector on the motherboard (FPC). I'd like to restore the charging functionality and, at best, also the usb (data + data -) line. There is a schematic for the FPC pin assignment? There are other place on the board where I can find 5v,gnd,data+,data- line (maybe a jtag or a service hole/plate)?
I also have a spare connector but there's not enough space to re-solder and some plates are gone with the broken connector, so I'd like to find an alternative way.
Thanks

fraschized said:
I have a OnePlus 5 with broken usb-mic connector on the motherboard (FPC). I'd like to restore the charging functionality and, at best, also the usb (data + data -) line. There is a schematic for the FPC pin assignment? There are other place on the board where I can find 5v,gnd,data+,data- line (maybe a jtag or a service hole/plate)?
I also have a spare connector but there's not enough space to re-solder and some plates are gone with the broken connector, so I'd like to find an alternative way.
Thanks
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Honestly, resoldering would not help, and since are pretty much left with no alternative but burn chunks of money, I don't know what you expect from here?

vdbhb59 said:
Honestly, resoldering would not help, and since are pretty much left with no alternative but burn chunks of money, I don't know what you expect from here?
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I can't understand what You're talking about.
The question (I suppose in the correct section) was easy: There are pins or plates (except the fpc connector) on the OnePlus 5 Board to power it?
For the pourpose I have in mind (a Tasker bridge device) the solder solution would be great, if possible. Seems strange that in the whole board there's not an alternative +5v and a GND to power it. But, after a week and with only Your (non contributing) answer I think I have to get the circuit tester and route some points myself.
I'd rather prefer no answers If the only one I get is about the circumstances and not about the point.
Thanks anyway

fraschized said:
I can't understand what You're talking about.
The question (I suppose in the correct section) was easy: There are pins or plates (except the fpc connector) on the OnePlus 5 Board to power it?
For the pourpose I have in mind (a Tasker bridge device) the solder solution would be great, if possible. Seems strange that in the whole board there's not an alternative +5v and a GND to power it. But, after a week and with only Your (non contributing) answer I think I have to get the circuit tester and route some points myself.
I'd rather prefer no answers If the only one I get is about the circumstances and not about the point.
Thanks anyway
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Sorry to say if you see it that way. I know what I wrote was correct, and I was just resonating your point that there is no way out. Not sure if you seem to have seen it differently and rather why??

vdbhb59 said:
Sorry to say if you see it that way. I know what I wrote was correct, and I was just resonating your point that there is no way out. Not sure if you seem to have seen it differently and rather why??
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There's always a way out, maybe it could be difficult or expensive, that's not the point. We're talking about a connector, not a more complex component.
Banally, the first way is by following the 5v from usb cable to fcp connector, (as described in a youtube video about OP5T) and check if that plate is still there, then, if not, if there is another point of the same line or a scratchable spot.
The question was about existent schematics and/or other people experience about this or similiar. Things that can make everything easier or confirmed.
So:
- The "repair" is achievable? Absolutely Yes if the fpc plate is not damaged (by making a bridge); probably Yes if damaged.
- The "repair" makes sense? Yes, for my purposes
I can't see Your point and Your statement, as I already know there's a way (that I've asked to be confirmed or already experienced) .