Hi guys, first sorry to my english, i am from czech.
I have a problem with phone. when i power off, phone still charging ( charging logo still reebot). i change USB port a problem not solved. i using stock 4.1.2 rom. please help me
Either you bought the wrong USB board when you replaced it (there are 3 revisions, use a revision different to the one already in the phone, and you don't fix the problem), or there's something else wrong hardware-wise, more than likely a component or two on the motherboard.
It might also be as simple as the battery, try another if you haven't already.
MistahBungle said:
Either you bought the wrong USB board when you replaced it (there are 3 revisions, use a revision different to the one already in the phone, and you don't fix the problem), or there's something else wrong hardware-wise, more than likely a component or two on the motherboard.
It might also be as simple as the battery, try another if you haven't already.
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Click to collapse
thanks, ok i find a right revision. I buy new battery, when i buy a usb flex. And where a show a riht revision? on motherboard?
It's printed on the board the USB port is attached to. Search for similar threads, it's been discussed a lot on here this year, there are threads which have pics & all the details you need.
Related
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
Hello, just asking for a bit of advice. I just replaced my usb port on my galaxy S2 although when I plug it into my computer it isn't recognized. I've double checked everything I can think of including the flex cable itself to make sure it was plugged in properly. It is neither recognized on the pc nor does it charge the battery. The microphone works so I'm sure the replacement part is working in some capacity. Would anyone have any advice on this issue? If nothing else I'm going to try and get another replacement sent.
Slywolf15 said:
Hello, just asking for a bit of advice. I just replaced my usb port on my galaxy S2 although when I plug it into my computer it isn't recognized. I've double checked everything I can think of including the flex cable itself to make sure it was plugged in properly. It is neither recognized on the pc nor does it charge the battery. The microphone works so I'm sure the replacement part is working in some capacity. Would anyone have any advice on this issue? If nothing else I'm going to try and get another replacement sent.
Click to expand...
Click to collapse
Could easily be a drivers issue/conflict. Click the link in my signature and go to the section for 'if computer won't recognise' and try the things listed there. I know you're not trying to flash with Odin but same thing applies.
Hopper8 said:
Could easily be a drivers issue/conflict. Click the link in my signature and go to the section for 'if computer won't recognise' and try the things listed there. I know you're not trying to flash with Odin but same thing applies.
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Click to collapse
I also tried plugging the phone into the wall using a usb converter and it still doesn't charge. I've also tried on multiple computers without any luck. I also took my galaxy s2 apart again and put it back together to make sure I didn't make any mistakes so after trying all these options I believe it's most likely a faulty replacement part and will get a replacement from the seller.
Slywolf15 said:
I also tried plugging the phone into the wall using a usb converter and it still doesn't charge. I've also tried on multiple computers without any luck. I also took my galaxy s2 apart again and put it back together to make sure I didn't make any mistakes so after trying all these options I believe it's most likely a faulty replacement part and will get a replacement from the seller.
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Click to collapse
Ah that's different. When you said in OP that it 'didn't charge the battery' I thought you meant that it didn't charge only when plugged into PC. My bad. Hope that you get a refund/replacement without hassle :good:
I reckon you've bought the wrong revision of the board. Did you check the existing board in the phone & see what revision is printed on it, and order the exact same part. If you just lob on eBay & search for 'Samsung Galaxy SII I9100 usb port' there's every chance you're going to get the wrong part.
MistahBungle said:
I reckon you've bought the wrong revision of the board. Did you check the existing board in the phone & see what revision is printed on it, and order the exact same part. If you just lob on eBay & search for 'Samsung Galaxy SII I9100 usb port' there's every chance you're going to get the wrong part.
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Click to collapse
Spot on there are different rev numbers on the part: 1.5, 2.2, 2.3 and 2.4. You need to make sure that the rev number corresponds with the original part otherwise your mic may not work or you have no signal etc..
I replaced mine not knowing this and don't know what the original Rev number was. I bought the phone in sept 2011 in the uk- does anyone know what the rev numbers were in the phone at this time? Thanks
I think it started when I spring cleaned the inside of my desktop system unit and accidentally plugged the front usb 2.0 connector (my pc is very old) to the motherboard in reverse. I didn't recognize it until I tried charging my phone through the front usb but my phone didn't charged at all and it suddenly got very hot instead.
After that, my phone won't charge through wall or usb anymore. It only displays that the phone is charging but the battery percentage is not really increasing. I already tried replacing the battery and also tried using a different wall charger and it's still the same. For now, I've been using an external battery charger since it's my only choice and I can't afford to buy a new phone.
Can somebody help me identify what parts were damaged and I need to replace in order to fix the problem? Do I need to buy an entire board replacement just to fix this?
BTW, I'm using i9100 Intl.
Thanks in advance.
Replace USB board/port; quick/easy/cheap (<US$15) to do yourself. KeithRoss39 has a guide in General which will enable you to get it done; there's a link to it in Hopper8's Odin Troubleshooting guide stickied in General if you can't find it with a search.
MistahBungle said:
Replace USB board/port; quick/easy/cheap (<US$15) to do yourself. KeithRoss39 has a guide in General which will enable you to get it done; there's a link to it in Hopper8's Odin Troubleshooting guide stickied in General if you can't find it with a search.
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Click to collapse
Thanks for the response.
Are you sure it's only the USB board/port that I need to replace? btw, file transfer is perfectly working, charging is the only problem.
USB board malfunction has become a common fault with this phone (and to be honest, all Samsung phones). The board rarely dies completely all of a sudden, almost always shows a couple of faults but works OK in other ways.
Fairly sure this will fix your problem, and given how cheap it is, you might as well try it before you start spending serious money taking it to a service centre or local mobile repair shop. If that's not the problem, it's likely something else on the motherboard but as to exactly what, that's impossible to say without the phone in front of us.
Replace the USB board & see, given you've tried different batteries & charges, it points to the board/port.
The fact that your phone is functioning normally when you insert an externally (fully) charged battery would indicate that the problem isn't with the motherboard.
The USB charger/port board is connected to the motherboard and is pretty much the only part of the phone that separates the motherboard from the charger. As @MistahBungle says, everything points to that board being faulty, and replacing it really does cost pocket change and is something that is relatively easy to do.......
BTW....here is a link to the guide that mb mentioned....
http://forum.xda-developers.com/showthread.php?t=2335961
Make sure you read the first post in full before you begin....
Sent from my Markox powered KitKatted S2
Thank you. I'll give it a shot.
Whenever i connect my phone with USB to PC (windows 10) , it first alert as connected and then again for disconnected and then again connect and disconnect again and again. SO i am not able to transfer any data as MTP/Mass storage mode doesn't work as PC finally doesn't recognize it .
It's not Software problem It's Hardware one. So all solution related to flashing new ROM /factory reset didn't worked.
Already replaced USB cable and tried on different PC with same results even with correct drivers installed.
So it's fault in USB port , so swapped with friend's Galaxy S2 USB Board completely and again same problem.
I tried when i dissembled it but then there was no GSM network and same usb problem. assembled it back , GSM connection came but again same USB problem.
Though it charges but doesn't connect and shows properly on device manager also. Also sometimes it does detect AC charger as USB , then i disconnect and connect again , then it shows normal AC charger connected.
What's the real problem as even replacement USB board also giving same problem ? Is it problem with motherboard ?
HELP , it's very irritating.
Probably not the motherboard....My guess is the wrong version of the usb board.....There are 4 different 'revisions' of this board for the international i9100.
My guess is you brought the wrong one.
See this thread for details......
http://forum.xda-developers.com/showthread.php?t=2335961
http://i.imgur.com/rVnFwJM.jpg
keithross39 said:
Probably not the motherboard....My guess is the wrong version of the usb board.....There are 4 different 'revisions' of this board for the international i9100.
My guess is you brought the wrong one.
See this thread for details......
http://forum.xda-developers.com/showthread.php?t=2335961
http://i.imgur.com/rVnFwJM.jpg
Click to expand...
Click to collapse
So are you sure it's just 100% USB problem not motherboard ? if yes then i can get it replaced by Local repair shop in less than INR.400 ($5.97) where he will make me sure it works well.
Sounds like a nice deal right ?
EDIT- I just checked the both my old board and the replacement board from my friend's S2 are same Rev no. 2.3 .
But still same issue though his phone might have USB problem.
Can you make sure it's just the USB board problem and motherboard has no role in it. ? so that i can just get the board replaced without any tension ?
My 'gut instinct' is still telling me that it's the usb connector........
IMO, this type of connector is pathetically fragile and simply cannot withstand repeated connection/disconnection over long periods of time. I have owned a number of devices that rely on a micro USB port, and on over 50% of them, either the port or the plug on the end of the supplied charger/connection lead has failed (and I treat my devices with care).
I have never heard of a motherboard causing these types of issues and I've been active on the S2 forums for nearly 4 years, so I've seen a *lot* of posts....having said that, it can't be entirely ruled out....The S2 is now 5 flagship devices out of date, and I guess that those devices that remain in service will start to exhibit new faults that only age can reveal.....
It's up to you if you want to replace the usb board, but bearing in mind the relatively inexpensive cost of the part (compared to the cost of the motherboard), it's as good a place to start diagnosing the issue as any....it's what I'd be doing if i were in your place......
http://i.imgur.com/rVnFwJM.jpg
keithross39 said:
My 'gut instinct' is still telling me that it's the usb connector........
IMO, this type of connector is pathetically fragile and simply cannot withstand repeated connection/disconnection over long periods of time. I have owned a number of devices that rely on a micro USB port, and on over 50% of them, either the port or the plug on the end of the supplied charger/connection lead has failed (and I treat my devices with care).
I have never heard of a motherboard causing these types of issues and I've been active on the S2 forums for nearly 4 years, so I've seen a *lot* of posts....having said that, it can't be entirely ruled out....The S2 is now 5 flagship devices out of date, and I guess that those devices that remain in service will start to exhibit new faults that only age can reveal.....
It's up to you if you want to replace the usb board, but bearing in mind the relatively inexpensive cost of the part (compared to the cost of the motherboard), it's as good a place to start diagnosing the issue as any....it's what I'd be doing if i were in your place......
http://i.imgur.com/rVnFwJM.jpg
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Click to collapse
Thanks , will get the USB board replaced and will let you know how that goes ..
actually i have the same issue
i replaced usb board two times and that changed nothing (one was a new replacement, second that i use now it's an used original board )
still can't use my i9100 with pc
most things i can manage without a pc but still... sometimes it would be easier
Hello, a friend is having problems charging his "MiPad 4".
We have tested with several cables and several chargers (including the original 5V-2A), but the charging current does not pass on average 250mAh.
I'm sure it's not a ROM problem because it started to happen from one moment to the next.
I have tried several versions of Xiaomi.eu but it does not change anything.
I'm thinking that the board that controls the charge, where the USB-C port is, may have been damaged.
I'm looking for the replacement part but I can not find it (attachment jpg).
Has anyone had this problem or something similar?
Regards!!!
hugomoya said:
Hello, a friend is having problems charging his "MiPad 4".
We have tested with several cables and several chargers (including the original 5V-2A), but the charging current does not pass on average 250mAh.
I'm sure it's not a ROM problem because it started to happen from one moment to the next.
I have tried several versions of Xiaomi.eu but it does not change anything.
I'm thinking that the board that controls the charge, where the USB-C port is, may have been damaged.
I'm looking for the replacement part but I can not find it (attachment jpg).
Has anyone had this problem or something similar?
Regards!!!
Click to expand...
Click to collapse
Hi, I had the same problem and I need to buy this board somewhere.
Could you find it somewhere?
Regards
can someone help me, I need to buy this board
Hi. My new Xiaomi Mi pad4 has the same problem!!! It's charging speed is very very low and the problem is not from charger and cable ( I have tried 5 different and original and working chargers and cables). I had to open my brand new Tablet and noting was wrong. I'm suspicious if this little board which has the type C USB has problem Since when I connect the Tablet to any PC it says that Usb can not be recognized. Can anyone help me to find this little board on internet?? Or any suggestion???