Database Users

USB device is not recognized error.

Hi all,
I'm experiencing the above problem. It started last week when I tried to reflash the firmware to a third party firmware. The unit could power up as normal, wifi, bluetooth all working fine but not the USB. I've tried installing a utility which switches the mode from RNDIS to USB but it still failed .. hard resetting the device does not help either. Is there a way that I could revive the USB connection? I couldn't sync my contact etc at the moment with my PC.
BTW, currently I'm on Onyx Jr. 4.1.2. I could not update to any firmware due to this and I don't have microSD to SD converter which I could use to copy the firmware to the microSD.
TA.

Disconnect sync cable. Reconnect to different usb port on computer. Right click ActiveSync in taskbar. Click connections. Make sure "Allow USB connections" is checked. If above fails, uninstall usb adapter in device manager, reboot computer. It'll reinstall with stock drivers after reboot.

It may happen due to faulty USB cable. Try and use another cable and on some other computer and check

I've tried all that I could think off including removing activesync and reinstalling it back. I've few miniUSB lying around and I've tested many of them but my notebook just did not want to recognized the htc touch. I've tried using those cables with my wife's tytnII and they worked .. could it be the hardware problem inside htc touch itself?

Tried with a new USB cable found in my newly bought GPS and if I reseat the cable properly, my notebook could recognised the htc touch. So I guess a new cable does help.. thanks all for the help.

Can't connect my viewpad 10s...unknown device problem

Ok...here is my story. I have a really big problem. I have the 10s(same is the advent vega) for about 3 weeks and i couldn't manage to connect it to my computer. I bought a male to male usb cable and when i plug in the tab and do the 2 sec back, 2 sec power thing my computer sees the tab as a unknown device. I tryed all the usb ports on my computer and nothing. I have xp but i tried on two other computers with win 7 and the same thing. I tried to update the driver from device manager ...tried to uninstall and search for new device and the same thing. I tried everything.... read all tutorials tried every usb driver... I ''broke '' my tablet and it won't boot now ...the backlight just starts and it turns off.So I need to connect my tab now badly.... so if someone could help....
Once more.....things i tried:
every usb port on comp
diffrent windows and computers
usb driver update
audi
vega tools
10000000 times to get in to the recovery mode (hoping that the comp would show the apx device)
I didn't get a usb cable with my device so i had to buy one..i found a male to male cable
So if anyone knows a way to help me with my unknown device problem... please do... i'm really sad that my tab is ''dead'' have it for a couple of weeks...

Do you have the device USB drivers?
I can send you the drivers and you can try to see if it works with your device , Not sure if it will fix the problem but you can try.
PM me your email and I will send you the file

same problem here, onluy "Unknown device".
Have the right drivers and tried to manuell select the drivers, but it won't work, see screenshot

I had the same issue, BUY ANOTHER CABLE, IF POSSIBLE DIFFERENT BRAND.
That solved my issue, believe it or not the cable was broken. This will work in case you have all the drivers and entered into recovery mode correctly.
Give it a try.

Hi!
I used to have the same problem with my Viewpad 10s whenever I came from stock version. What I found out was that the driver for advent vega must be a bit different from viewsonics.
Try to use the ones on viewsonics site and then try to flash...
...if not maybe its really a cable problem!
Cheers

[Q] Quantum Connection issues?

i just got a quantum for work, when i plug it in via the micro usb cable it recognized it, installed drivers and all looks good under device manager.
the issue i get is when i try to plug the phone in to update it via zune, i get a "connection error" please unplug, restart the device and try again. i've tried different computers (both running 7x64) different usb cables, even did a factory reset on the phone to no avail.
anyone have any idea?

Pc not detecting android but charging

Hi Basically plugged my S4 i9505 in via usb. Nothing shows in my computer, but phone remains charging. I have tried uninstalling and reinstalling all samsung usb drivers but it does nothing. Tried installing kies/older usb drivers, still no luck. Regardless of if there are drivers or not on my pc, there is no detection what so ever. My pc is detecting my second S4 I9505 perfectly. Anyone know the solution to this?

majorr92 said:
Hi Basically plugged my S4 i9505 in via usb. Nothing shows in my computer, but phone remains charging. I have tried uninstalling and reinstalling all samsung usb drivers but it does nothing. Tried installing kies/older usb drivers, still no luck. Regardless of if there are drivers or not on my pc, there is no detection what so ever. My pc is detecting my second S4 I9505 perfectly. Anyone know the solution to this?
Click to expand...
Click to collapse
Tap 5 times buildnumber in settings menu under: about phone to open developer settings. Enable USB debugging. Now you can choose what to do when phone is plugged in pc.

lekiaM said:
Tap 5 times buildnumber in settings menu under: about phone to open developer settings. Enable USB debugging. Now you can choose what to do when phone is plugged in pc.
Click to expand...
Click to collapse
USB debugging is Enable still nothing happen

USB debugging is not required in order to have the phone recognized by the computer.
Have you tried different USB cables and USB ports? Is the phone detected on other computers?

i had the same problem.... and we found out that the pins or the usb connection sh1t from the phone doesn`t make good contact. si try to push a little but or force up and down the usb cable to the usb from phone maybe you will manage to find a stable connection or something.
when i connect to phone to the pc i have to hold the usb cable connected to the phone in a weird position. that works for me

USB device not recognized"

SOS Help
after replacing the motherboard, my phone now with his new motherboard (used) is not recognized on the computer
when plugged by usb cable it does charge but there is no data changing possibility, as windows pop message say "USB device not recognized"
and I can't even detect it in ODIN with download mod to flash a new firmware or so
tried with different usb cables
different computer
different windows version
mobile is already on MTP+ADB in usb settings
any ideas please ?

I have the same problem here, have you solved it?...