Dell Support Drivers & Downloads Driver File Formats

Driver Details

Conexant D400,External USB 56K Modem, v.FW_F1-05-48, A02
Conexant Europa D400 External USB 56K Modem Firmware ver:F10548
Release Date 10/18/2007
Importance: Recommended
Version: FW_F1-05-48,A02

The following formats are available for the file you have selected

Previous Versions

No previous version available.


Conexant Europa D400 External USB 56K Modem Firmware ver:F10548

Level of Importance:Recommended

Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers and software).

Important Information

Install instruction is included in release package.


XPS M1730 (M1730, Late 2007)
Operating Systems
MS Windows Vista 32-bit
MS Windows Vista 64-bit
MS Windows XP
MS Windows XP x64

Applies to

  • Conexant D400 External USB 56K Modem

Fixes & Enhancements

1) Fix for DTMF level problem 2) Improved Vista reinstall issue fix

Installation instructions

Custom Instructions for R165222.EXE:

NVRAM Patch:
1. Configure the communications application program for a DTE rate of between 9600 bps and 115200 bps and hardware
flow control enabled (RTS/CTS flow control).
2. Initiate the download process using the AT** command. The ¡§Download initiated ..¡¨ message appears upon issuing the
AT** command.
3. Send the latest USB loader (USBLOAXX.S37 file) in ASCII or text mode. Once the modem is ready to download the
patch file it will out put the message ¡§Upload NV_ram Data ..¡¨
4. Send the latest controller patch file (F105XX.ptc) in ASCII or text mode. Once the patch is loaded, the modem will
respond with ¡§Upload successfully completed¡¨

Patch Loading Verification:
To verify the modem has successfully loaded the patch, send the command AT-PV. The modem should return the
patch version which consists of 3 bytes (example: F10548).            


To ensure the integrity of your download, please verify the checksum value.

This is an optional process and is not required for the downloading and installation of device drivers from this site.
Not Available
Not Available
Not Available

By downloading, you accept the terms of the Dell Software License Agreement.