unknown usb identifier

[kinski]

I've got an 'old' XDA II (PH10B), and I don't want to miss it. My problem is the USB connection. Due to unknown circumstances, the USB chip has lost the identifier, so that I can't synchronize with USB connection due to unknown device. Serial, bluetooth and irda still works. Is there any possibility to restore the USB-identifier back into the PDA. I've restored the rom and radio via serial, but it doesn't fix the usb-problem

[raju-007]

You may change your USB sync cable. Your problem may be solved

[kinski]

That was my first trial!
The problem is exactly described above. and it has nothing to do with async ,pc, cable or something else.

[perfp]

You may change your USB sync cable. Your problem may be solved


Thank you. I never would have thought of that, since the phone is charging.:confused:

But changing the cable actually worked :)

[quantico2708]

i kind of have the same problem . my device freezes when i connect it via USB to computer .

Actualy it does not freeze when Advanced USB functionality option in Settings is on ... but ActiveSync does not start ...and nothing happens .

The funny part is that it worked ...some time ago and i tried to connect it to another computer and it works .

the only thig i haven`t try is to reinstal windows on my computer

[Jadel]

Try plugging it into another USB spot on your computer. The cable and phone obviously work, which suggests that maybe the USB hub on the computer doesn't have enough power to charge and function. This usually happens when using front panel USBs. Try the rear USB ports.

[mihai_nightrideer_86]

i'm having the same problem as quantico said:(

"""my device freezes when i connect it via USB to computer .
Actualy it does not freeze when Advanced USB functionality option in Settings is on ... but ActiveSync does not start ...and nothing happens .
The funny part is that it worked ...some time ago and i tried to connect it to another computer and it works .""""

well....mine did worked untill one month ago,and then suddenly had this problem..:D

the problem is not the computer that i'm sure,i have tested on a friend's computer and problem persists..and i have reinstalled my os from 32 bit xp to 64 bit xp and active sync works fine,cause i have another device a hp 6915 and it's ok...

the cable seems to be the main problem,but now i'm not sure...i have tested the pins with a ohm meter in the both ends of the cable and it doesn't seem to be somethin wrong..apparently..i will reinvestigate:confused:

then i thought the problem was my rom(3 monts ago when i bought the phone did upgrade from wm 2003 to wm6.1 using Shekhar's rom which had a few bugs, and so decided now to go with the latest,Ather's dark edition 6.1 which so far works like a charm(best recomended for hima)...but again problemo not solved..

i still think that the cable or the back connector might have a problem,but here in romania is hard to find a qtek 2020 data cable and also a cheap one so...untill anyone has some brilliant ideas :eek:..i'm just charging my phone from usb

[mihai_nightrideer_86]

i have retested the cable with the ohm meter at both ends and cable is fine ,no broken pins,no shortcircuits...

i have pluged the usb cable into the pda moterboard connector and tested the usb at one end of the connection and on the mainboard of the pda at other end(phone dissasambled no power) all tests indicated that the fizical connection between the usb and motherboard pda is fine,and no other shortcircuits or broken connection..

that leads to another conclusion...there is an internal pda circuit or chip mailfunction of the usb function due to hardware or software problem that i cannot explain..typically for those models.....

those problems are not new,a lot of mp3 players after a while crash like that with usb device mailfunction or card readers or usb hubs.. but why?:confused:

so...we're back at the start of this thread:(

[aaike]

It seems that I have the same problem with my qtek. Some strange things happened. Unpredictable disconnections with usb. As above, I updated several month ago with the Ather WM6.1 rom. But the strange usb disconnections still exist. I bought a new usb cable. No change.

Since today the qtek doesn't charge either anymore trough any pc or in my usb charger in the car.

I guess something went wrong inside the pda...

[10mg]

I had problems with win7 and usb drivers. Came across these and it allowed me to flash roms. As i was having connectivity problems I thought these may help

[quantico2708]

the cable is not the problem ...because i tried on another computer ..and it worked ...
the problem is the XP ...and the drivers

[adr1st]

I had problems with win7 and usb drivers. Came across these and it allowed me to flash roms. As i was having connectivity problems I thought these may help
its it win 7 32bit or 64 bit?
im using win 7 x64 still have the problems :mad: