3 days ago i flashed my sgs with Ultibread v1.3
Today i decided to flash back 2.2.1 firmware, but all of my 3 computers (10 usb ports) couldn't recognize my phone.
Try to search any solve of this problem, but no one tutorial has not helped.
What did i do?
uninstall all of samsung usb drivers
clean register of all garbage with "samsung"
reboot my computer 3 times
download latest samsung usb drivers v1.3.2000.0 (25.jan.2011)
get out battery for 15 minutes
try plug in other usb port
take computer, wich never connected my phone, install latest drivers (see previous step) and connect sgs to him...
In all cases, the result is one: Unknown USB Device.
System can load and "debug mode" switched on.
Please, help me...
My PC forgets my SGS on a regular basis. When I plug the USB into my phone it is usually a good 50/50 if it recognizes it.
I have found the best way to deal with it is to reboot the phone while it is still connected by USB to the PC. When the phone comes back up with the USB connected, the PC always discovers it right away.
Also avoid connected through a USB hub if possible, that always gives me trouble.
Omg! Solved.
Ultibread v1.3 and, maybe, 1.4 got issue with check in debug usb mode.
And without this check - windows can't recognize phone.
Solution:
turn on debug usb mode in settings, then put out battery when phone is ON.
Then you can get in download mode.
Case closed
Hi to all!
From Yesterday i have i sudden problem i never had.
When i connect my i9000 does not anymore show the 2 drives (usb storage of both internal external sd) on my computer.
I use Glitch kernel with latest cm7 kang.
When i connect the phone via usb to the pc,sometimes i get the erroe usb device not recognised (win 7 x64), and connects and disconnects randomly(always showing the error),other times doesnt do anything.
I tried cleaning the port,different pc usb port,different pc's, factory reset,different cable,older versions of glitch kernel or cm7.
Formatted also boot and system folders(of course also wipe data etc).
Installed kiss,boot the pc with phone off and then on.
Tried win7 x64 drivers.Sometimes i get on windows unknown device that i cannot find drivers that accepts.
On off usb debug mode and restart.
Nothing seems to work for me.
So id like to ask.....Should i try to go back on stock(firmware+kernel)?
And how is it done???
Or maybe its the port fault?
Any ideas?Noone?
Could someone please tell me how to go back on stock?
First to stock kernel then to stock firmware?
Thanks
The "device not revognised" error is related to USB debug mode, unless you have installed Google USB drivers.
Its not supposed to occur with debug mode=off.
Going back to stock (Leaked JVU) is explained here:
http://forum.xda-developers.com/showthread.php?t=1431596
Thanks for the link.
Going back to stock worked for a friend of mine,which came today(he has the same phone with cm7.2 rco and glitch kernel but with usb port working)by simpling entering on download mode and flashing with odin.Drivers installed (from samsung drivers folder,after installing kies)
On my phone,on download mode,or it doesnt say anything or i get on pc the message uknown device,cannot install etc.If i try to manual push the drivers it says the device cannot start.
So it must be a hardware related problem no??
In this case ,because i am still on warranty,is there any other way (for example via cwm) to put stock firmware and kernel in order to claim warranty?
Many thanks for your posts.
Okay a little backstory:
I was on an early version of CM9 but as i am selling the phone i decided to put a more stable version of it on there and downloaded CM7 -stable.
I flashed this in CWM and it worked fine.
I gave it a quick test and noticed all the google apps were missing, most importantly the market. So i booted into recovery and realised i had forgotten to put the zip on the SD card.
I then went into mounts and mounted USB, nothing happened...
From that point onwards the phone would not talk to the PC. even if i booted up into the phone, it would just show it as charging. I could not find any options in the menus for USB options.
After some extensive reading, i tried a few things, none of them had worked. I found a post mentioning some kernels have issues with USB, so i downloaded the recommended one and flashed it in CWM.
After rebooting, CWM was now orange and not blue and the option to flash from external card has gone.
I have also done some digging and there is a good posibility that the kernal that i flashed was for the GT I9000 (which is the american one, right?)
So as it is at the moment:-
I can get into CWM.
I can get into download mode through the 3 button combo.
I can get into download mode using home made jig.
I can boot the phone, but it boot loops.
I can not get the phone to be detected on the pc.
Things i have checked:
Cable will connect other phones.
Tried different cable to be sure.
Phone used to be detected, but downloaded drivers through kies again to be sure.
Closed Kies using task manager.
Nothing is coming up in network connections in device manager when phone is connected.
I'm out of ideas now, so £10 PayPal donation for anyone that comes up with the solution to fix it
If i can get it detected, i can use Odin to flash what i want.
Sounds like a drivers problem. You may need the 'Google driver' developer.android.com/sdk/win-usb.html
When I had bootloops when I first installed CM9 I used heimdall to flash a the stock CM9 kernel. This gave me back CWM.
heimdall flash --kernel 'kernel.zip'
In the commandline.
Thanks for that,
I already had the Google USB drivers from when i installed the SDK to make some apps.
So i then gave Heimdall a try (Graphical Version), it seemed to suffer the same problem.
Reporting "Failed to detect compatible download-mode device."
I seem to remember the GUI saying I didn't have the correct drivers and it downloaded them for me.
The other thing worth a try is changing the USB port and reinstalling the correct drivers on that port.
I've not seen anything like that, it has not asked me for any drivers.
It's like the phone is not connected at all. nothing will detect it, i have even tried it on another PC.
Sorry, I'm not sure what you mean by installing on a port.
Well sometimes changing USB port will allow you to install new drivers. Although if you've tried it in another computer and it doesn't work then changing port may not help.
Does the phone appear in device manager when it's connected and in download mode?
Nope. Not coming up at all in the device manager. It didn't when it was booting fine. And it still doesn't in download mode. :-( I'm thinking the usb connector on the phone might be faulty.
But it was working up until trying to mount the USB in CWM
Sent from my GT-N7000 using XDA App
I don't suppose you have access to a Linux PC do you? Windows USB drivers are notoriously sucky. If you could plug it into a Linux PC and type 'lsusb' at a command line, that would at least show you that the device is really there.
I think I have a spare pc kicking around that I could use. I'll give it a go when I get home tonight.
Sent from my GT-N7000 using XDA App
Remove all the drivers completely from device manager for Samsung, then install fresh drivers and connect the cable when in download mode, hopefully it will recognize it
Are you sure the connector is clean? e.g. maybe there's dust in it.
I had that problem once, the connector was full of fabric fibers from some coat's pocket I had the phone in.
Suggestion 1 (Linux): I installed ubuntu, did not detected anything to even install any drivers. Detected my new phone fine.
Suggestion 2 (Uninstall drivers from device manager): I could not find any drivers named with the name Samsung in there.
Suggestion 3 (Clean port): I have some compressed air that i sprayed inside, it does look pretty clean and will continue to charge but still not connection on the pc.
To install the drivers for heimdall you have to run zdiag from inside the driver folder. Had to do this earlier on, the phone the other appeared as something other than Samsung composite usb or whatever it normally says
I tried this, and it displayed 9 devices after selecting show all. I seemed to recognise all of the items in the menu.
To be sure, I then disconnected the phone and re ran it to see if one of the items were missing, but it was the same number.
I too had problem with the usb connection on my i9000, and I was pretty sure my usb connector on the phone is somewhat damaged since it sometimes can only go to charging mode without being detected by my pc as a usb device. CWM instal is fine but ODIN can only detect the phone without able to flash the rom to the phone. The flashing will always stuck at the message "Setting Up Connection", I waited for 15 minutes and the flashing will eventually died. I retry the odin flash for 40 to 50 times and eventually the flashing will go through one time. Tried heidmall command line and the result is the same.
I have problem with Odin in the past. I bought a new laptop, running Win7 64 bit. Installed Samsung Kies to install the correct USB drivers for the phone. Then made sure that Kies wasn't running in the background. So tried using Odin. Odin was detecting the phone, but it was hanging at initialising connection. Odin was working fine on my old laptop running Win7 32bit. Long story short, I was having a few issues with my new laptop, reinstalled Win7 64bit, now Odin is working fine, have flashed the phone a few times using the new computer.
After flashing which kernel you started facing this problem?
Wipe ur phone,re-flash CM7(flash the nightly 181,it's completely stable),uninstall KIES,uninstall old usb drivers,install these usb drivers http://forum.xda-developers.com/showthread.php?t=961956 ,check that USB storage mode is set as Mass Storage and then connect your phone. Also try enabling/disabling USB debugging
lovedonator said:
After flashing which kernel you started facing this problem?
Wipe ur phone,re-flash CM7(flash the nightly 181,it's completely stable),uninstall KIES,uninstall old usb drivers,install these usb drivers http://forum.xda-developers.com/showthread.php?t=961956 ,check that USB storage mode is set as Mass Storage and then connect your phone. Also try enabling/disabling USB debugging
Click to expand...
Click to collapse
The point at which i could no longer mount the USB was when i selected "mount usb" from CWM. I later installed a new kernal which downgraded my CWM, removing the install from external SD option.
So I cant flash a re-flash a rom unless i can it onto the phone which without the USB working is near impossible.
Xyis said:
The point at which i could no longer mount the USB was when i selected "mount usb" from CWM. I later installed a new kernal which downgraded my CWM, removing the install from external SD option.
So I cant flash a re-flash a rom unless i can it onto the phone which without the USB working is near impossible.
Click to expand...
Click to collapse
You can directly download the ROM on your internal sd using dolphin browser or opera mobile
I can't do that either as the phone is currently boot looping.
Sent from my GT-N7000 using XDA App
Can you help me guys? My galaxy ace could not connect to pc. It is running on stock rom, android gingerbread version 2.3.3
USB debugging is turned off.
It charges when i connect it to my PC and it also shows "USB connected". but when i click "connect storage to PC" and click ok, it doesn't connect and shows SD card safe to remove, turn off usb storage.
Please help me guys. Thanks!!!
Did you install Kies on PC? or the drivers only?
You have change the cable, thread and did you download some pilot (like kies)?
ve some problem with usb debugging using roms based on 2.3.6.
I've using till days ago a rom based on cm7.2 and I've no problems connecting the phone to the pc, then I've installed S'perience rom based on 2.3.6 and after a little while the phone starts to not connecting the mass storage. After plug the usb cable to the phone the screen to select the option of usb storage is there but when when I select the option the status bar display the message that the sd-card is ready but 2 seconds after, the phone disables the option and starts to prepairing the sd-card and the pc don't recognize the mass storage. Even if I go to the development option and thick the "usb debugging" it selects and deselects at same time.
This issue only occur with roms based on 2.3.6 not on rms based on cm7.2. I've tried two roms 2.3.6 and in the middle one cm7.2.
Anyone have an idea why is it happen and how to resolve that?
Same problem
Same problem with Cyanogenmod 7.2 cm-7-20121021-NIGHTLY-cooper and Firekernel firekernel-09.10.12.
I don't have mass usb storage. When i plug the data cable i only got charge and i don't have activate mass usb storage option. What i can do?
Thnks
Juankof said:
Same problem with Cyanogenmod 7.2 cm-7-20121021-NIGHTLY-cooper and Firekernel firekernel-09.10.12.
I don't have mass usb storage. When i plug the data cable i only got charge and i don't have activate mass usb storage option. What i can do?
Thnks
Click to expand...
Click to collapse
Hi, let's wait till someone can help us