Develop Bugs

[Q] Download mode doesn't detect any USB connection whatsoever (drivers installed)

Hi,
after getting my Note 2 LTE back from repair (they changed the mainboard, speaker, vibrator and USB port) I'm now trying to root it using Odin 1.85 (have tried 3.07 too) and CF Auto Root. The problem is that neither the phone nor the PC detects any USB connection at all while in download mode, ie. it doesn't even pop up with a driver request or anything. Device manager doesn't show any change in devices either. In this case the old "nothing happens" truly applies...
I've tried with going into download mode with voldown+home+power and with 'adb reboot download', with the only difference between the two is that when using ADB it doesn't display the white text in the upper left corner.
The PC runs Windows 7 (I used this same machine to root the phone when I got it back in November, and I haven't changed anything on it, other than the usual software updates). I've tried two cables that both work when connecting the phone while booted normally. The one I'm using now worked fine to transfer about 1 GB of pictures back to the memory card.
It's running the latest 4.1.2 (JZO54K.N7105XXDMC3) and is fully charged.
EDIT: I've now tried with uninstalling Kies and the Samsung USB drivers completely but the problem remains.
Thanks,
Magnus

Note 2 Android 4.1.2 download mode connect to PC
I have the same problem. Although your post is old, yet unanswered, I'm not sure if im posting correctly, or must create a new thread.
I connected my Note 2 to PC-USB during download mode. Also no action, but device manager showed a yellow triangle, while Odin running and pointing to a file for rooting.
I read in a post once that upgrading to Android V4.1.2 prevents rooting. How can I degrade it?
Phone connects successfully in normal mode.
Samsung Galaxy Note 2, SGH-T889 of T-Mobile (locked to carrier). Android V4.1.2
Tried on 2 PCs with Windows 8.
Also tried turning phone on to Download Mode after plugging it to USB.
I tried unlocking it, the unlocking software required phone to be rooted first!

[Q] USB Problems help

hi i have a i9250 -root android 4.3
this morning
1- when i tried to connect my phone to pc i get repeatedly message no recognized but if few time connect and disconnect it phone start on pc
2- phone wake up whiteout any touch or button
3- battery don't get charge properly
i check usb cabal and use another one same problem
factory rest
re-flash rom
nothing work im afraid it's from phone mini usb port

Strange connection problem

Hi
Since this evening I have a very strange problem that bother me and I don't know how to fix it.
My Galaxy N7100 won't be reconized by the pc!
When I plug in my phone I Windows does nothing.
But what's very strange is that I still can use ODIN on the PC.
I tried to connect my N7100 to my brothers laptop and it also won't be reconized.
Windows don't do anything, like there's nothng in the USB port.
The problem has started when I tried to update SuperSu to 1.97 then I've got a message that it fails and that I must reboot my device, so I did.
Su binary wasn't updated so I donwgraded SuperSU to 1.94 again but I lost my root. So I flashed back to stock rom. And that the problem happened.
I can flash my N7100 back to stock again and again, but my problem isn't solved.
My Note isn't recongized on both Windows pc, it acts like no device has inserted, it does nothing!
Strangely ODIN works!
How can I fix this?
I realy want my usb connection between Windows and my note back

[Q] Note II GT-N7100 USB connection problem

Hello,
I'm an average user just following the creative work on XDA since I had my htc HD2 lion.
I hope you can help me
I have international galaxy note 2 GT-N7100
I rooted it long before 4.3 update and it was working great.
I updated through Kies without uprooting, it showed error at the end and switched to phone recovery and was updated to 4.3 and worked great.
Device status showed modified for a few days then showed official.
I tried to Root it using a method without pc but failed and showed patched kernel error.
Then I updated to 4.4.2 OTA from the phone and it worked fine and shows official status.
The problem now is the micro USB can not recognize pc] (it does not show USB icon and connected as MTP in the notification bar) and can not be recognized by pc (it does not even show USB device not recognized) , also can not recognize OTG storage ( it detects the OTG cable but not the flash disk.
I have tried everything related to all components including pc, drivers, cables, and all are working very fine with my Galaxy S3 including connection, drivers, Kies and Odin recognition.
I hope one of the senior developers can help me.
I would be very grateful to any one who can offer a solution

my friend is having the same problem. Whenever he connects his note 2 in any pc , his phone only charge and no usb. if you have found any solution then please let me know.

Try replace your usb cable.

[Q] USB stopped working after failed odin flash

Hi, I recently tried using a stock image with odin for my galaxy tab pro 8.4. Odin started flashing but failed when sending system.img.
I tried this process twice and got the same result even using a different USB port in may computer and a different cable but, after the second try (and as the first one I disconnected the computer and restarted into download mode), the tablet usb stopped working.
When I connected it in my first two tries, I got the typical windows sound when you connect anything in the usb, now I dont get anything and not even in the device manager. I tried with another computer and got the same problem, no usb connected sound and nothing in device manager.
My device is now stuck in odin mode. If I try to reboot normally I get into download mode but with the message "Firmware upgrade encounterd an issue. Please select recovery mode in Kies & try again".
I have tried deleteing de drivers and installing kies but still nothing.
Can you help me please?

Nevermind
MarcoZM1978 said:
Hi, I recently tried using a stock image with odin for my galaxy tab pro 8.4. Odin started flashing but failed when sending system.img.
I tried this process twice and got the same result even using a different USB port in may computer and a different cable but, after the second try (and as the first one I disconnected the computer and restarted into download mode), the tablet usb stopped working.
When I connected it in my first two tries, I got the typical windows sound when you connect anything in the usb, now I dont get anything and not even in the device manager. I tried with another computer and got the same problem, no usb connected sound and nothing in device manager.
My device is now stuck in odin mode. If I try to reboot normally I get into download mode but with the message "Firmware upgrade encounterd an issue. Please select recovery mode in Kies & try again".
I have tried deleteing de drivers and installing kies but still nothing.
Can you help me please?
Click to expand...
Click to collapse
For anyone facing this, you have to wait for the tablet to run out of battery and then connect it again to the computer. It will be detected as before.