[Q] Galaxy s2 keeps disconecting usb from pc! - Galaxy S II Q&A, Help & Troubleshooting

Hello. I have a problem. When i connect my SGSII to my pc it connects and disconect, and it repeats every second. I cant use usb mode. Charger works good, it charges ok via charger and usb. but problem is i cant connect my phone to pc. I tried to make factory reset,tryed on another pc and other usb cable but it doesnt helps. Please guys i need help.
My problem looks like this: http://www.youtube.com/watch?v=WEqL32bVEpQ

which udb mode is the phone in media or mass storage ?
try deleting and reinstalling the usb drivers.

me
i tried both usb modes and reinstall usb drivers, still doesnt help!

Related

[Q] USB Device not recognized

Cant connect to Kies as it says USB device not recognized, used to but not anymore, dont see this problem in the S2 thread, anyone?
Currently using Win7 64
Thx
Same thing happened to me. I just reinstalled making sure all other programs were closed and I haven't had the problem since.
Hope this helps.
Install Kies .
Reboot phone
Start Kies
Connect Let KIES find phone .
Turn KIES off from taskbar .
Turn USB debugging on phone connect USB mass storage mode and let windows find driver .
That do work try all the other posts same subject for an alternative .
jje
No go
Tried all of the above, still no go, could it be my micro usb port on the phone is busted? When i tried connecting as Mass storage it says usb cable is connected, pls remove cable.
cablesguy said:
Tried all of the above, still no go, could it be my micro usb port on the phone is busted? When i tried connecting as Mass storage it says usb cable is connected, pls remove cable.
Click to expand...
Click to collapse
No thats just incorrect user settings .
Remove cable go to settings Applications Turn on USB debugging .
And?or turn usb mass storage mode on via settings Wireless and network USB settings then connect cable .
jje
JJEgan said:
No thats just incorrect user settings .
Remove cable go to settings Applications Turn on USB debugging .
And?or turn usb mass storage mode on via settings Wireless and network USB settings then connect cable .
jje
Click to expand...
Click to collapse
Yup, I did. I removed cables and turned on USB debugging, and tried the mass storage mode, upon connecting it says cable connected and to remove.
I'm getting this problem once I'm in Download mode. It's worked before... why would it stop?
Any tips?
I have the same problem
I seem to have the same problem I connect my phone via USB and get a USB Device Not Recognized message but MTP application opens on the phone. This has only just happened I have had it working before since I had the phone on 2 computers and have tried to different cables now it does not work on either computer. If any one has had any luck I would love to know how you fixed it.
Samsung Galaxy S2 - USB Device not recognized.
Hey Guys,
I have the same problem. I've even tried going into "Recovery" Mode and then running odin.. Still no luck. It just does not recognize the phone.
I tried a different cable but still no luck.
Guys,
i had had the same problem until i started to use the original USB cable(came with the phone).
Have a good luck!
Kirby
Got the same usb problem, different pc's, driver, cables nothing works.
After three month of use no Kies Odin ore mass storage us....big problem
any news info on this? seems to be quite common, though I only get it with stock roms, custom roms dont seem to have this issue
Cables Guy; I'm trying to figure out if I'm having the same problem as you. Does your phone charge when plugged in? Because mine does not.
i think in your case it might be the usb port in the phone itself, if nothing that you plug works well.
I believe there is an issue with kies/MTP and windows drivers for the rest though.
For me my phone doesnt get detected o nmy onboard USB but it does on the usb3 pccard i have.
any good news to solve this problems?
i got the same problem and worst case is my phone cannot detect sim
I had the same problem.. I just switched back to the original cable that came with the phone & problem was solved..
Sent from my SGH-T989D using XDA App
cablesguy said:
Cant connect to Kies as it says USB device not recognized, used to but not anymore, dont see this problem in the S2 thread, anyone?
Currently using Win7 64
Thx
Click to expand...
Click to collapse
whats your phone kernel? and are u able to connect to pc as usb storage? or did u flash anything weird before?

[Q] USB problem

Yeah, so i've read plenty of topics about USB problems, but none gave me the
anserw.
I'm running Villain ROM 3.0. I just cant connect my phone to the computer (Mac).
It work well before also after flashing Villain.
What i tried:
1. connecting my phone without usb debuging ->phone gives the sound and report in the notification bar : "MTP - initializing" then "USB Connected, MTP-connected" But it does not gives a connection with my mac.
2. Connecting my phone with usb debuging ->phone gives the sound, but nothing happens. nothing in the notification bar neither on the computer. It's strange becouse before it was making the same sound and giving me the info in the notification to connect.
3. I've also tried KIES air it works fine. i can see my phone content, but when im trying to send one file (130mb) there is no reaction to this.
Also some time ago i was able to get usb working by simply choosing usb debuging and restarting phone.
But now i have no acces to my storage
Please help
I have a similar problem.
When I connect my SGSII to my PC (with USB Debugging On) I see 2 Removable Drives in Windows' Explorer. If I click on either one I get the "Please Insert Disk". If I connect to the same USB with USB Debugging off, then Kies Starts but does not connect.
Now the weird bit, if I do the same thing in the next USB port, then everything works fine.
Going back to the first USB slot then the problem reappears.
The 2 USB slots are next to each other and go back to the same controller on the motherboard. I have removed Kies and reinstalled Kies. I have uninstalled all the drivers. I have even changed the USB cable. When I plug a USB External Hard Drive into either USB, it works fine.
Maybe the phone just likes the one connection per computer. I'll have to test that out in my work's PC.
Update:
managed to get a microUSB cable and tested it on my work's PC. Exact same situation. Both PCs run Windows XPpro.
Has anyone else noticed this?
Now, when you said that, i checked with my second usb por, and everything works fine .
So thanks for your help. One working with sgs2 usb port is enought for me

Vibrant not conecting to PC :/

Hi i bough a vibrant SGH-T959
I am triying to root it but it wont conect to my pc
the guy i bought it from told me the phone was rooted before but he restord it before he sold it to me. eany ways i have try all the USB ports in my pc
and have try 2 diferent pc too, tried diferent cablesn and i have install the drivers in all of the other computers. i put it on debuging mode and the computer simply doesent recognise it. i tryUSBDeview and i dont see samsung drivers eanywhere but i know i have them install in fact i have re enstalled them and nothing
the phone charges but dosesent get detected by the computer
eany help will be apreciated thanks
Download Samsung kies. It will install Samsung drivers for you.
Link: http://www.samsung.com/us/kies/
Sent from my SGH-T959 (Samsung Vibrant)
I have tried that and nothing :/
Try turning USB debugging off and try again...
By the way, you're on stock 2.1 correct?
Sent from my SGH-T959 (Samsung Vibrant)
i have try that and nothing
i have try easytether driver
the msi program and all sort of things
and im in 2.2
So USB debugging won't work. Kies/Sammy drivers won't work. I have a radical idea. Maybe your computer won't recognize the drive as a Mass Storage device b/c the drive letter got deleted somehow. This has happened to me on a few phones when flashing-fantastic.
Try this and see. It is for XP but I suspect there are similar solutions if you are on W7.
ill chek it out but i have try my phone in 3 direrent computers and nothing :/
the strange thing is when i plug it in to the PC it only charges
but when i plug it in to de AC adater it goes into debuging mode 0.o
Now i turned debuging off and turned mass storage on
and when i plug it to charge it says USB connected phone conected to computer 0.o
Try these steps:
1. Disconnect your phone from your PC
2. Setting
3. Wireless & Network
4. USB
5. Click the last option (don't remember)
6. Reconnect your phone again
Good luck
orphan22 said:
Now i turned debuging off and turned mass storage on
and when i plug it to charge it says USB connected phone conected to computer 0.o
Click to expand...
Click to collapse

[Q] Galaxy S2 GT-I9100 won't connect to PC via USB

I'm having an issue with my Samsung Galaxy S2 GT-I9100 (running on stock Jellybean 4.1.2) no longer connecting to the PC via USB. It had been working fine up until a few days ago.
When I connect the USB cable, it only charges the phone. It doesn't show that it is connected in MTP mode and no USB options appear in the pull down notification bar. I tried locating the phone on the computer in Windows Explorer and the Device Manager, but it wasn't there at all. There also wasn't any unrecognised device in the Device Manager.
I’ve tried the following:
Using different USB cables. Tried two official Samsung cables, a Belkin charge/sync cable and a generic cable
Plugging into different USB ports on 3 different PCs/notebooks (running on Windows 7/8)
Turning on/off USB debugging mode on the phone
Going into Settings>Wireless and networks>USB utilities. After tapping "Connect storage to USB", it will prompt to connect a USB cable even though it is already plugged in.
Booting the phone in safe mode and connecting the USB cable
Installing the latest version of KIES. I had never used the software before but gave it a try. KIES wouldn't detect the phone
Uninstalling and reinstalling the latest Samsung drivers
Dialling *#7284# for the PhoneUtil options and checking it was PDA mode under the USB option.
Turning off the phone, removing then re-inserting the SIM card and battery
Cleaning the micro USB port on the phone
I have not made any changes to the phone (or PCs), so I'm not sure what has happened for the USB connection to stop working.
Your assistance would be much appreciated.
That is very weird. Are sure you didn't change the USB connection type?
danielbe said:
That is very weird. Are sure you didn't change the USB connection type?
Click to expand...
Click to collapse
Definitely sure.
I'm wondering if maybe the micro usb port is damaged, even though there's no problems charging the phone.
That is very possible, the port can be damaged in a way that only allows charging.
Hey guys, My micro-usb was damaged so i changed it with a new one... It didn't work and phone was charging instead of Mass Storage or Debugging mode !
I thought its fake and a bad quality micro-usb so i changed it again and still have the same problem.
I have the same computer, same cable and everything is same, even the programs which i installed in both phone and pc are same, but it wont connect to pc.
My moms phone can be connected with my cable.
Ok, before i change the Micro-Usb, it was fine but not charging as good as normal. I mean at least i was able to upgrade or downgrade my android version )
Can anyone help me ? I already did a factory reset and removed the SD card. No lucks ... ( i also tried other cables and other computers, but the problem is ONLY with my damn phone )
I'm running Android 4.0.3 KH3

Galaxy S3 SHV-E210K can't use USB connection

I just bought an old Galaxy S3 SHV-E210K android 4.4.4. Everything work fine, but I can't connect to my computer through USB port. When I plug in USB port, my phone only charge, have none notifications about USB connection ( same as my PC).
So i tried:
- Hard reset my phone
- Change my cable, USB port, computer ...
- Install, reinstall kies with drivers
- USB debug mode on, off
- Try to use *#7284# and *#0808# but nothing happend. ( for more information I can't use *2767*3855# too)
- Try to root with kingroot, ROMmanager, ... but can't. It seem like my phone block all these apps
- Try to find OEM unlocking but there's no option in developer options
Please help, i read all articles but nothing solve my problems I'm so hopeless
Have you connected the phone to the motherboard usb port and then installed kies then stopped the kies processes?. You can also uninstall the kies program while keeping the drivers.
shivadow said:
Have you connected the phone to the motherboard usb port and then installed kies then stopped the kies processes?. You can also uninstall the kies program while keeping the drivers.
Click to expand...
Click to collapse
No i havent. After i had installed kies with driver, i pluged in usb port. Nothing happened
Have the phone already connected so it can find it correctly..
If it still isn't detected by the computer, the USB port could be damaged.
audit13 said:
If it still isn't detected by the computer, the USB port could be damaged.
Click to expand...
Click to collapse
I changed computer too. Any ideas ?
Try connecting the phone while it's in download mode.

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