Faulty USB flex question - Galaxy S II Q&A, Help & Troubleshooting

Hey all,
bought a used i9100 recently, UK 3 network. Got it cheap as the usb port doesnt work (charge or pc connection).
just got round to changing the part, but the part i bought doesnt work either.
there isnt any signs of water damage, and the person who owned it before me wasnt the diy type, so it hasnt been messed with (still had the original GB 3 branded stock rom on it).
have asked the seller of the usb part for a replacement which will be coming tuesday, but in the meantime i was wondering if anyone knows of any other reason thatd stop the usb port working. is there a chance the mainboard has a fault? everything other than the usb port works, and it doesnt go into drive mode, or phantom charge etc.
cheers

Tried cleaning the port with alcohol? Remove battery and clean with a toothpick. No metals or anything.
What could be wrong? The port, the flex connector even the main board. Replace the usb socket and see. Be careful around the antenna wire when you open it up.
Sent from my digital submersible hovercraft.

f-r said:
Tried cleaning the port with alcohol? Remove battery and clean with a toothpick. No metals or anything.
What could be wrong? The port, the flex connector even the main board. Replace the usb socket and see. Be careful around the antenna wire when you open it up.
Sent from my digital submersible hovercraft.
Click to expand...
Click to collapse
thanks for the reply.
maybe it wasnt clear in the op, but i have changed the part over already. the 'new' part which came didnt work either when i changed it over.
i say 'new' as they appear to be pulls from phones, rather than new parts.
heres the part http://www.ebay.co.uk/itm/251069751004?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
just hoping that i received a faulty replacement part.
will try cleaning the port, sounds like a good idea.

This is one people said worked in another thread.

received the replacement from the seller today, and all is working. nice to have usb working finally

Related

[Q] HELP!!! broken black wire/connector inside HD2

Hello all.
While I was taking my HD2 apart to replace a cracked screen (glass digitizer) I accidentally broke the connector off one of the wires. The wire is black and a few inches long with a silver and round press on connector on each end. It attaches to the board that houses the vibrator motor and runs down the right side of the phone (if you were looking at it face down and partially disassembled).
Unfortunately, I lost the metal piece that broke off the wire (the thing is tiny!), so I can't just solder it back on. Any idea on where I can buy a replacement? I've spent about 6 hours today on ebay and google to no avail. Searching for "HD2 black wire" and anything similar is hardly efficient, but that's all I know about it.
Any help appreciated.
Thanks,
Chris
Good question, I think I damaged the cable to the volume buttons so it would be cool if someone has an adress where we can get spare parts except LCD and Digitizer..
this guy on ebay seems to be selling an HD2 in parts. you might find what you need here:
http://stores.ebay.co.uk/Right-Click-Enterprises/_i.html?_nkw=hd2&submit=Search&_sid=131407386
Thanks, I sent that guy a message and hopefully it'll work out.
Anyone else have a source?
connector of my hd2 is also broken HTC says that the mainboard must be change and I have to pay € 230 because that is my responsibility
I think you have damaged your coaxial cable connector for wifi and bluetooth. Google will help you perhaps.
I believe that my wifi/bluetooth cable is broken, as I have no wifi or bluetooth signal since dropping my phone as reported in a previous post of mine. Can anybody advise me on the difficulty of undertaking this repair myself, does it involve complete disassembly of phone, any soldering etc. If this is the case I don't feel confident enough to do this so does anybody know of someone who does this sort of repair, I have found the cable on e bay for £7 and it looks like it has push on connectors ?
if the connectors on the boards are not broken then all you need is the coaxial cable with connectors on the two end. you need not disassemble the whole set, just open the back cover, connect one end of the cable to mother board and other end to the rigid flex board and that's it.
WiFi and Bluetooth not working
raincybercafe said:
if the connectors on the boards are not broken then all you need is the coaxial cable with connectors on the two end. you need not disassemble the whole set, just open the back cover, connect one end of the cable to mother board and other end to the rigid flex board and that's it.
Click to expand...
Click to collapse
Do you think that this is my problem as since I dropped my HD2 I have no wifi (unless sat ontop of router) or bluetooth or fm radio, is it easy to get to the coax cable by removing back cover, whereabouts is it ?
raincybercafe said:
if the connectors on the boards are not broken then all you need is the coaxial cable with connectors on the two end. you need not disassemble the whole set, just open the back cover, connect one end of the cable to mother board and other end to the rigid flex board and that's it.[/QUOTE
Fixed it, opened up phone and spotted that at one end of the black wire the connector was not pushed onto the motherboard securely, I pushed it home and hey presto, wifi and Bluetooth now working, phew, Thanks for your help !
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Click to collapse

usb/charging port

has anyone gone through issues with their usb port? this is going to be my third time fixing it, if i even fix it at all. buying boards just for the usb is pretty frustrating since i usually havre to buy a complete phone for it. i actually have just the usb ports themselves but it didnt work out too well the first time. very small soldering. anyone else had theirs go bad more than once?
micro usb port fix
yes, it takes insane soldering skills to fix one. but instead of buying a phone just for the port you can get a replacement micro usb port on ebay for a few bucks. once you solder the new one on you can coat the pins on the board with a hot glue gun or any other solid adhesive for strength. once the job is done try to remember phone ports are delicate and should be handled with care and you wont have a problem again.

Broken USB?

Hey all,
I thought my USB port was broken given that it didn't charge and I couldn't connect it to the PC.
So I bought a nice one and replaced it.... no dice. Still doesn't work. However, the odd thing is, I also bought a USB jig and that does work. Anyone got any clue what could be going on?
Cheers
Maybe the wrong USB board, there's a couple of different ones, best way to work it out is match up with the one already in the phone. Search for similar threads in Q&A over the past few mths; there's been detailed discussions (and pics from memory) of which board is which.
Check on this thread.....
http://forum.xda-developers.com/showthread.php?t=2335961
it might help.......
Sent from my rooted, de bloated, stock JB powered S2 via PhilZ kernel and XDA developers app
USB Connectivity Problem
mirey said:
Hey all,
I thought my USB port was broken given that it didn't charge and I couldn't connect it to the PC.
So I bought a nice one and replaced it.... no dice. Still doesn't work. However, the odd thing is, I also bought a USB jig and that does work. Anyone got any clue what could be going on?
Cheers
Click to expand...
Click to collapse
As you said that even after replacing the port.... it didnt work. And it worked out after you connected it to your new USB jig. This means that there might be a problem with the original USB wire which comes with phone when you Buy it. It might even be a problem with the Connectivity Board in the phone as it must have been damaged. I'm not really sure about this but it might even be a problem with software... Maybe you should have tried to atleast wipe the whole system... maybe then you would get to know more about the problem.
Cheers
heh, yeah, I did check that and ordered a 2.2, but they sent me a 2.3.
However, I stuck my old 2.2 one back in, and tried it with the jig, and the jig works :S
So no my USB doesn't work, but the USB jig does... that's really got me confused
EDIT: Yeah, I did think about software, so I tried to install a different ROM and then I got scared and thought I bricked the phone (it didn't like that wrong USB version was there I guess). I'll see how that goes.
I tried a different cable. The weird thing is it sort of slowly died, and I had to stick the cable in at a weird angle and stuff, so that's why I thought it was the USB port.
As I understand it, there are 5 (?) connectors in the socket. Each connector when paired with the common or ground contact (probably the shielding on the outside of the socket) will perform a different task (that's probably an over simplification of the sockets functionality.........but you get the idea)....eg/ data transfer in, data transfer out, charging, jig resetting, usb docking, usb otg.....that sort of thing.
When you get the situation you're in, it simply means that the relevant connector for the required task is damaged or worn out.....but that doesn't mean that ALL the connectors are affected.... ..that is why some functions work while others don't.......
Sent from my rooted, de bloated, stock JB powered S2 via PhilZ kernel and XDA developers app

USB will only charge, no data connection

So I got a new Galaxy Note with a busted screen, and I combined the two (my no audio one) to make a working phone. Now the new Frankenstein phone has audio, the screen is perfect, and all is good. Except I can't connect it with USB to my computer. It charges over USB, but when I connect to my computer I get an error that the USB device has malfunctioned. I swapped the USB board with the spare I had, but it doesn't work still. I've tried a few different cables, different PC's, and enabled USB debugging, and it doesn't work in either download (odin mode) or regular mode.
Any ideas?
Maybe it's the USB cable.
ddochi11 said:
Maybe it's the USB cable.
Click to expand...
Click to collapse
I've tried a ton of different cables. No dice.
ericcorp said:
I've tried a ton of different cables. No dice.
Click to expand...
Click to collapse
I'm gonna post here for later reference also.
Same exact issue.
Was your USB port confirmed working on your no sound device recently before the swap?
I bought a new replacement to swap in. I'll keep you updated if it works for me.
5 different cables, 4 different PC's. Only one authentic Samsung cable out of 5. Maybe that's my issue, but I dunno.
I bought this thing used. I just need rooooooot..... :crying:
So I fixed it. Turns out the connector on the motherboard that the USB daughter board ribbon cable connects to was dirty. I took some rubbing alcohol on a q-tip and cleaned it off. Right after that it worked perfectly.
ericcorp said:
So I fixed it. Turns out the connector on the motherboard that the USB daughter board ribbon cable connects to was dirty. I took some rubbing alcohol on a q-tip and cleaned it off. Right after that it worked perfectly.
Click to expand...
Click to collapse
Replacing my micro usb port fixed my issue. The downside is... I broke my sound in the process.
I wish I could just leave well enough alone sometimes. At least I'm rooted on JB now. :cyclops:
EDIT: Apparently my phone only likes my old USB module and not the new one as far as sound is concerned. "yay"
Every time I need Odin, I have to swap usb also.
maybe this shud work for u , it worked for me
http://canvas2update.blogspot.nl/2014/11/not-connecting-as-usb-storage-only.html
I think that what you need
https://www.youtube.com/watch?v=R6p0Eg-yq3A

[Q] HTC EVO LTE Charging issue.

Ok, im trying to figure out why this phone wont charge or connect to pc via usb. I have done testing on the port, and it appears the port is good. and it seems to be making good contact with the board. I have posted pics of the port and the area that connects to the board. I have checked the continuity from a cut usb cable i have, plugged it in port and have good continuity across all the pins of the port. My question is, are the pads on the other side of the pcb points for the usb port? becuase i have no continuity on any of the points with any pin in the cable. the phone turns on, i bought a brand new battery and screen for the phone, i got it for free from someone and it was completely shattered. I have about 75 dollars invested in it. It works perfectly, completely virgin no root or unlocked bootloader. Running the latest update.
I also posted a pic of the jtag pads, there is no continuity on any of those either to the USB. Nor any other pad on the board anywhere. And i think thats odd, there should be one somewhere.
Sorry if i posted this in the wrong area, mods can move it if they need to.
Derfus said:
Ok, im trying to figure out why this phone wont charge or connect to pc via usb. I have done testing on the port, and it appears the port is good. and it seems to be making good contact with the board. I have posted pics of the port and the area that connects to the board. I have checked the continuity from a cut usb cable i have, plugged it in port and have good continuity across all the pins of the port. My question is, are the pads on the other side of the pcb points for the usb port? becuase i have no continuity on any of the points with any pin in the cable. the phone turns on, i bought a brand new battery and screen for the phone, i got it for free from someone and it was completely shattered. I have about 75 dollars invested in it. It works perfectly, completely virgin no root or unlocked bootloader. Running the latest update.
I also posted a pic of the jtag pads, there is no continuity on any of those either to the USB. Nor any other pad on the board anywhere. And i think thats odd, there should be one somewhere.
Sorry if i posted this in the wrong area, mods can move it if they need to.
Click to expand...
Click to collapse
Some more pics..
You try a diffent usb cable? I've tried some of the white ones and they never seem to connect to the pc.
ADM818 said:
You try a diffent usb cable? I've tried some of the white ones and they never seem to connect to the pc.
Click to expand...
Click to collapse
Oh yea, ive done all the obvious things to try and figure it out. When i got it, they said it just quit charging, so i figured it was the battery, so i bought a brand new battery, which came charged, and a new screen, since it was shattered. It turns on, works perfectly, but it will no charge or connect to pc. ive tried 4 or 5 different cables, and ive wiggled and bent and pushed and pulled and everything else on them to try and get a sign of connectivity. So far ive come up with nothing.. This appears to be a common problem with this model, i guess i should have researched it more before i spent so much on parts for it.
Maybe the circuit board is fried.
ADM818 said:
Maybe the circuit board is fried.
Click to expand...
Click to collapse
Theres no visible damage to the board, no water damage, nothing is broken, im having a hard time diagnosing it
Derfus said:
Theres no visible damage to the board, no water damage, nothing is broken, im having a hard time diagnosing it
Click to expand...
Click to collapse
My usb port took a dump too once. Had to replace the phone.
Sent from my EVO using xda app-developers app
jlechner said:
My usb port took a dump too once. Had to replace the phone.
Sent from my EVO using xda app-developers app
Click to expand...
Click to collapse
As in the port lost connection to the board/broke? or this same situation, where it just quit working for no reason? The port is working as it should, and making good connection with the board. I'm stumped. If the port was broken, i could replace the port, no problem, but im 100% positive the port is not the issue here.
Derfus said:
As in the port lost connection to the board/broke? or this same situation, where it just quit working for no reason? The port is working as it should, and making good connection with the board. I'm stumped. If the port was broken, i could replace the port, no problem, but im 100% positive the port is not the issue here.
Click to expand...
Click to collapse
I didn't get into it as deep as you, but my phone would charge yet would not work over data (connected to pc). Repair store was stumped too.
Sent from my EVO using xda app-developers app
jlechner said:
I didn't get into it as deep as you, but my phone would charge yet would not work over data (connected to pc). Repair store was stumped too.
Sent from my EVO using xda app-developers app
Click to expand...
Click to collapse
Very interesting. I guess i will have to break down and buy another motherboard, i can get the whole phone on ebay for around $60 with broken screens. think thats my best bet.,
Derfus said:
Very interesting. I guess i will have to break down and buy another motherboard, i can get the whole phone on ebay for around $60 with broken screens. think thats my best bet.,
Click to expand...
Click to collapse
Did you figure out what happened to it? Mine suddenly developed a problem last week and would appear to be charging (charging light on) but it does not really charge. The port looks ok.

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