After 2 days of struggling about the USB connection issue, I think maybe I've found the reason... Just write something here so that someone may see this in the future when searching around...
CONCLUSION FIRST:
It's caused by lack of power supply of the USB ports
If you believe me, you can skip the part below and try use a USB port in the back of a desktop and tell me if I'm right
Just leave me some feed back...
---------------------------------------------------------------------------
So here's how I found it...
My observations:
1.Cannot connect to my 2 laptops in all modes and with all drivers I can find, showing "Device not recognized""your device is malfunctioning".
2.If I pull out and back the cable several times, it may recognize at some times. This connection may last for only 1 sec or several minutes, but won't be long and stable since I always stuck in the middle of large file transferring.
3.The e-sata/usb combo port worked better than the other two in the left side.
If it's the problem of driver, then with some of the drivers, it may work better. however, nothing makes a different.
If it's because of system, I have XP on my old one, and Win7 x64 on the new envy 14, and the result is exactly the same
so the observation #2 made me believe that maybe it's a hardware issue, either my phone or my cable is broken. what excluded the phone is that I got a replacement yesterday and the replacement doesn't make a difference. So the only thing left is the cable.
So I brought my phone to the school PC center and used the desktops there. still not recognized when i plug it in one of the usb ports on the front. So I crewed on the desk and finally reached a port in the back, and bang!
It recognized in 2 sec.
So i pull the cable out and connect again.
still 2 sec.
try transfer a large folder to it. lasted 5 mins, finished smoothly.
So I went upstairs to another desktop there.
Exactly the same result!
and both of the two desktops don't have any drivers installed beforehand.
---------------------------------------------------
So now I believe that if you only need to use mass storage, no driver is needed. windows will automatically install an universal usb driver for it and it should work.
All the drivers are ment to get connection in Kies/ADB/downloadmode.
And the reason why some guys never get connection issue may simply because their computer are designed to give more power to the usb ports.
As for my envy 14, all the usb ports i can reach come from a usb hub inside, which has 6 ports connected to. and 3 of them are already used by internal bluetooth chip and etc..
Also...some phones may need less power to activate the storage chip...
So just tell me if I'm right~~~leave your comments here...
This could be possible. I've used devices in the past that would act up randomly before I moved the usb ports around. You could try to use a double head usb and connect that into your phone to confirm your theory. But really, as long as you got it working, good for you.
Samsung Captivate
Firefly 2.0.5
SpeedMod Q Big Mem
JK4 Modem
Interesting theory. I had an old HP Laptop from '05 I used with three usb ports, and the number of usable/recognizable eventually turned into one. I just thought my laptop was acting crazy with windows 7 and drivers... because I now have a tower pc and the connection is solid. I do use a port on the top though, although it's never given me any issues. So...moral of the story is... this phone's usb is kinda funky.
And if you're a n00b and reading this, if your computer EVER says "device cannot be recognized", etc... BEWARE OF USING ODIN3 on this PC! I had a similar mishap right as it was flashing on sbl.bin... I am lucky that I don't have a Super Amoled paper weight.
Yes that's what I'm gonna try~ need to buy one online though, may bring the result back in couple of days.
Motherboard
Always go directly to the motherboard for a hot USB port
I believe that many of the FAQ/Bible threads mentioned using a rear USB port many months ago.
Related
I've looked everywhere and cant seem to find an answer, so i figured i'd start a new thread.
My captivate used to connect to my computer just fine, but there was another computer it would just NOT connect too! Well, after a few months, it stopped connecting to my home computer as well.
I have USB debugging on, the phone is rooted and everything. When I plug it in and mount the USB drives, i get drives J and K on my computer, one for the internal storage, and one for the SD card i have in the phone.
When double clicking any of those drives, it just sits there and reads forever without ever doing anything. I can use the SDK to run "adb devices" and it see's the phone, Odin One Click finds the phone but freezes on reading file line, or just fails all together.
Any ideas?
Try reinstalling the samsung usb drivers and restart your computer, that'd be my first step.
Sent from my SAMSUNG-SGH-I897 using XDA App
You have to be on the touch wiz home screen if you're trying to connect to Kies, otherwise turn on USB debugging and you should be good to go
Sent from my SAMSUNG-SGH-I897 using XDA App
SeenNotScene: I've uninstalled, rebooted, re-installed several times. I've been having this problem for a couple months now and i've tried everything i can think of. It doesnt work
bkhams: I dont even know what Kies is? I always have USB debugging turned on, and once connected i bring down the drop down menu and mount the USB so i can access my phones files as if they were another drive.
I had the same problem, and Samsung peeps told me I had to use the USB cable that came with the phone, low and behold they were right. Connected right away with the USB that came with the phone, could that be your problem?
I had the same problem in the past and it was actually a hardware problem with the Captivate and not anything with the computer. I ended up taking the phone in and they exchanged it for me.
I do not know if yours could be having the same problem, but that was my experience. Frustrating, to say the least.
Hmm... Could be the hardware i guess.. I know its not the cable though because i've only ever used the cable that came with it.
Have you tried connecting to the USB port directly off the motherboard? My connections were "sketchy" at best when using the ports of the top of the computer case. Once I connected directly off the MOBO, zero problems since.
Sloved!
axis01 said:
Have you tried connecting to the USB port directly off the motherboard? My connections were "sketchy" at best when using the ports of the top of the computer case. Once I connected directly off the MOBO, zero problems since.
Click to expand...
Click to collapse
Thank you for suggestions! My front USB connector is probably connected to some internal HUB, not going straight to the motherboard and wont work. Connecting directly to MB USB solve the problem. I am a little bit surprised... but whatever - M$ bull*hits. I spend couple of hours yesterday to find out whats going on. Thank you again!
Hello suddenly my nexus s stopped connecting with data with the pc it only charges, tried with 3 diffrent computers with diffrent os , no menu popping on nexus and nothing connected on the computer(like i didnt connect anything), i removed the battery left it for some time installed stock rom still nothing.It was acting normally for a second and the other it stopped any help appreciated!
Are you sure you're using the cable that came with the phone? I have an LG Wink featurephone here that uses the same connector at the phone end -- its cable will charge my Nexus S (using the computer, obviously, but also when used with either the LG or Samsung charger) but no USB connection happens when I use it. Only the cable that came with my Nexus S provides a USB connection when I connect to the computer. I guess there are pinout differences between the two cables.
If you're sure you're using the right cable, I would guess that it's gone bad if it doesn't work on any computer. You can buy an (overpriced) replacement from Samsung or maybe a cheaper one on eBay or at a retail store. If the latter, be sure the seller lists it as compatible with the Nexus S.
it happened with the original cable ppfff i dont know...
same problem
stavros86 said:
Hello suddenly my nexus s stopped connecting with data with the pc it only charges, tried with 3 diffrent computers with diffrent os , no menu popping on nexus and nothing connected on the computer(like i didnt connect anything), i removed the battery left it for some time installed stock rom still nothing.It was acting normally for a second and the other it stopped any help appreciated!
Click to expand...
Click to collapse
Hi
I have the same problem
I have no idea what the problem could be.
We are not alone with this problem: code.google.com/p/android/issues/detail?id=13553
Now installed stock rom as well but still the same problem.
If i starting the NS in the bootloader mode the phone is not recognized by the computer.
It would be great, if someone knows a solution!
polandy said:
Hi
I have the same problem
I have no idea what the problem could be.
We are not alone with this problem: code.google.com/p/android/issues/detail?id=13553
Now installed stock rom as well but still the same problem.
If i starting the NS in the bootloader mode the phone is not recognized by the computer.
It would be great, if someone knows a solution!
Click to expand...
Click to collapse
I've been trying to get help with this for weeks. No one is even responding to my posts. I thought it was something OBSURDLY simple, such that people didn't even want to waste their time responding to me.
Seeing same problem, No connetion via USB
Posted problem in General,, http://forum.xda-developers.com/showthread.php?t=1104245
Tried different cords, different computers and operating systems,, did cold start several times on phone (removed battery) still no luck, I am running totally stock
Curious do any of you have the Google Music Beta?? (maybe a over zealous rights thing?)
just tried it with a Win 7 machine that had never seen it before and it said it could not recognize the device,, me thinks that the MS device driver DB is messed up buy some recent Win update??
i sent it to samsung to change my usb slot because after connecting to pc and nothing happen when i went to charge the phone it took 5 hours to get to 30% so iam almost sure that mini usb slot malfunctions
stavros86 said:
i sent it to samsung to change my usb slot because after connecting to pc and nothing happen when i went to charge the phone it took 5 hours to get to 30% so iam almost sure that mini usb slot malfunctions
Click to expand...
Click to collapse
My phone charges just fine. And my USB connectivity was fine until I manually installed 2.3.4.
~I had usb connection problems after upgrade to 2.3.4 a bit different but I managed to get the USB back by formatting the SD card.
see here
Acnescar said:
~I had usb connection problems after upgrade to 2.3.4 a bit different but I managed to get the USB back by formatting the SD card.
see here
Click to expand...
Click to collapse
I was on 2.3.3 when this happened, i tried to flash 2.3.4 then and again it didnt work but the strange thing is that when i was moving the mini usb the first times up and down it was shown for a moment as a broken usb device.Then this stopped and was not shown at all on the computer and finally the phone charged super slow when connected to electricity
Beginning to believe that it is a physical prob with USB connector on phone. It seems to start/stop charging when wiggling usb on phone but no mounting. Doe anyone know best way to resolve , T-mobile but bought from Best Buy? so to Best Buy? FOR SUPPORT /EXCHANGE? suggestions?
I've seen loose connections before. My suggestion ain't the cheapest but the plug, on the cable end, shouldn't wiggle. I went to a corporate sprint store, the ones that actually have working display phones, and got their usb to micro usb data cable. The thing with that cable is when you plug it in the phone side, it goes into the jack firmly. You can almost feel the little locking tabs click into place. There should be no play or wiggle with that cable as long as there's no damage or abuse with the jack on the phone. IMO, that's a good data cable. It's never given me problems before.
Also, sometimes the cable is only wired for charging. A true data cable will be wired correctly and be able to both charge and transfer data. Usually the cables that come with the phone are crap quality. I don't know if my suggestion will help but it won't hurt to have a good cable for data transfer and flashing. The last thing you want is a flaky connection from a cheap cable when you're flashing roms. Russian roulette with bricking a phone in a worse case situation.
Did you try reboot the computer and the phone? How about a different usb port? How about unplug any other usb device in case it's conflicting for some unknown reason? It sounds like so many people with windows 7 are having problems. Usually always happens with a new os that's released. Xp, for flashing devices and programming different hardware devices, has never given of a problem. I have a small partition with xp on it just for that purpose only.
off to Samsung for repair for me...
After time on phone with them and a factory reset belief is that the usb connector is defective. BTW Best Buy just hands off to Samsung 1-800 #
So Back to a barely functional G-1 for a while, glad I could find it!
So is Samsung or the carriers replacing or fixing units?
My USB data died shortly after 2.3.4 ota update.
Wifi FTP is fine for data transfer but I want USB debug to work...
Shame on google and Samsung, this bug has been around for months.
no shame on anyone...
I went through a factory reset with Samsung on phone that isolated the problem to what is apparently a loose usb connector, nothing to do with software... only hassle is sending it in for repair, as` mentioned problem needs to be dealt with Samsung customer service (not carrier or Best Buy), they were fine on phone...
So this issue started a few days ago. Any time I plugged my phone in it would constantly connect and disconnect from the pc. I've tried multiple usb cables, ports, and the 3 PCs I have with the same result on each. Now when I plug it in, it is no longer being recognized by the PC, Odin, ADB, etc... It will charge but that is it.
I have a warranty replacement coming to me however I need to be able to get this one back to stock... Any suggestions?
Before anyone asks, NO it has never been wet, dropped, damaged in any way, set on fire, caught in a land slide, earthquake, what have you.. The phone itself functions perfectly fine. All drivers are up to date, none of my PCs configurations have changed. I have one I use specifically for app development and not even that one will see the phone.
I had the same problem. I used a different cable and it all worked better....now with that said it happened again so I flashed my phone back to stock and all was well.
Then went to flashing ROMS.
Sent from my SAMSUNG-SGH-I727 using xda premium
Really check out the micro usb cable. A bad cable will just about always allow a device to charge, but data transfer is another story. If you really have tried a few micro USB cables, then it the problem relies elsewhere. Try restarting both phone and PC, and if neither works, sounds like you have a busted port on the Skyrocket.
Thank you both for your responses. I am a PC technician so I followed my usual troubleshooting steps to figure this out. I narrowed it down to either all of my cables are bad (not a chance) or the phone is just f**ked (likely). Ah well ill have to try to use another way to force the stock firmware and recovery on here. Lol
HTC = Hate The Consumer
I use my old Nokia OEM USB cable. Connects with the right number of pins on the USB connection end. I'd check your USB cables for # of pins . Skyrocket uses 5 I believe. Also that there is sufficient power to your USB ports. Aka avoid front USB ports which could only be 4 pin....
Sent from my I727 rocket on Marz! @[email protected]
When you plug the usb cable in, do you see the usb icon at the top left of your screen? I have to pull that window down to tell it to connect to pc, then confirm it again before mine connects. Mine doesn't auto connect on its own.
I see you've been a member for a few years so if its not connecting, that really sucks man. Hope you get it figured out.
Sent from my SAMSUNG-SGH-I727 using xda premium
Your phone is a ghost.
Sent from my HTC One X
Not running the AOKP ROM are you? The R3 build had an issue with this, and all AOKP will disable USB to PC if you enable 'fast charge' under ROM Control...
Good luck :S
According to what I've been reading you can try using the *#7284# code and setting the USB portion from PDA to MODEM and then back to PDA and it would kickstart the connection. No dice for me though. Ive been through 7 different USB cables already.. I am not about to go and buy one just to keep playing with it my other phones connect just fine using the same cables. No, I am running the latest Sky ICS
I have a SCH-I915 (Verizon) which is not recognized by any machine that it gets plugged into. There's no unknown device, no beep of a usb connection, it does beep like a charger has been connected (and gets the red x on the battery icon, indicating the amperage is insufficient), but the PC doesn't recognize there's an interactive device on the other end. I have spent 3 days combing the forums. I can assure everyone, it is NOT a driver issue. For one thing, the same laptop that flashed the wrong firmware and unlocked the bootloader is among those who can't see it. It also isn't visible to the best buy samsung rep or he'd have flashed it for me. I've also used anycut to manually select mass storage or samsung kies. Neither work. After reading many, many MANY posts on devices not being recognized, it seemed to me the ultimate fix for most of the people with these symptoms was a new cable. I just bought a cable and it's the same. The original does me no good, neither does the new one (which is an insignia from best buy). The maddening thng is, it was working FINE (apart from being unusable...but it was able to be connected to any way you like) just a few days ago. It was the factory reset from within the 4.1.2 OS that seems to have changed something. My idea (which may be entirely off base, since I don't actually know the USB protocols is, the tablet gets plugged in and either is supposed to say "I'm here" or the PC asks "who are you?" After that would be steps on establishing what device it is, etc... I think this initial handshake is what's broken. The PC thinks it's got a usb fan or whatever, the tablet thinks it's connected to a crappy charger.
So I've got a couple questions
1) Do they make charging cables which are distinct from the data transfer cables?
2) Has anyone used one of these insignia cables? Was it fine for you?
3) Is there any other nuclear option I can deploy myself? I don't have much faith in those best buy guys. (On a side note, I was allowed to use the guy's laptop to try and get it to work and if I had had a thumb drive, I'd have all the cool imaging software they have...but it was not to be.)
Does it shows up when connected in recovery or download mode?
Sent from my Nexus 4 using XDA Premium HD app
No it doesn't
No matter the computer I'm attaching to, nor whether it's in download, recovery, or fully up, the connection appears to only be seen by one side.
So, my phone won't quick charge, nor will it connect to pc. Keep getting the divice not recognized and has malfunctioned. Stock everything, cause I can't unlock the bootloader to flash it. 7.0 android. Things I've tried, brand new cables, the charging block is the one that came with the phone. 3 different pcs, windows 7 to 10. USB Debugging, the secret enter code in dialer to the menu to enable hisense or whatever USB setting, enabling it USB to hisense in advanced (its not hisense its something, can't remember its the oem exe) various drivers and Android drivers.. I've tried it all almost. It's not beyond me to take the phone down and replace the port but I'd rather not if it's a common correctable issue. I reset this phone twice to see if a reset would fix it.. Nothing. Anyone else with the issue or something like it? Just wanna root this thing.. This is a "new to me" phone so probably why they sold it if it's the actual port jacked up, it's not a big big deal as my g3 was overheating and dying and I got this for $80.. Figure I came out on top cause the USB c boards are cheap enough. But I hate the glued together stuff cause you never get it exact when throwing it together or at least I don't. Big hands. So... Here is to hoping it's software. Phone works 100% other than that I like it.
Yeah, I know this. Quick charge won't work on the block. I'm not concerned with quick charge on my pc.. I'm concerned with connecting to my pc period. I can't connect at all. The bootloader is locked because I can't connect to pc to unlock it. So to recap. Quick charge will not work on the block at all so I lack being able to quick charge, and I cannot connect to a pc via USB. I have tried all the fixes I can think of in my original post with no success unless I missed something?
I'm thinking I'm gunna have to tear this phone apart and replace the dang port... Lol. Too easy.