Stuck in DFU mode
 

i have dell d505 with truemobile bluetooth 300 and while i setup the orginal driver it start to upgrade the firmware but some program coz the notebook restart and now the blue led do not turn on and when want to setup the driver again keep tells me F2+Fn to turn the module on but nothing happen
eve with the last widcomm 5 tells me no hardware found and i try to use
dfu wizard but keep giveng me this
dfu mode error
:firmware upgrade mode could not be controlled
and in hardware mang. under bluetooth section gives me:
1- bluetooth bus enumerator
2- dell trumoblie bluetooth module in firmware upgrade



any help?

If it's a dongle, take it out and out it back in.

If it's built into the laptop, try restarting.

it is bulit in but i try restarting many time any another solution?

I'd try disabling the DFU device in Device manager, restarting and re-enabling maybe?

still the same
any idea?

can you try turning it back to normal with the firmware upgrade program?

At the very worst, you'll need to re-install Windows or do a repair install.

http://www.michaelstevenstech.com/XPrepairinstall.htm

thank u but firmware upgrade program not work for me as i mensioned before and i use fresh copy of windows 2 time and nothing change.

no other solution?

any help?

See if this helps you.

http://66.249.93.104/search?q=cache:...dfu+mode&hl=en

same problem
 

I'm trying to solve just the same situation - I found that there is a driver pack from Dell which includes firmware file (R77162 ...in svcpack directory), now I'm seeking for way to flash it in.
Firmware flasher in appropriate trhread (http://forum.gsmhosting.com/vbb/showthread.php?t=166014) doesn't work...

now what?
 

I found the flasher and tried to upload Dell firmware using it - it shows different vendor error. Please advise working firmware for this BT, or how to disable vendor check (to be able to flash dell firmware by force).
I tried the actual one in firmware upgrade thread, one included with flasher and none worked (0 of ... bytes loaded -> file verification failed)

Complete
 

Heureka

I used firmware flasher from driver pack version A02 (after installation in \bluetooth software\bin\btdfuapp.exe) and firmware included in complete A05 version (R77162 ... svcpack directory).
Easy as killing bunnies with axes.