The Hewlett-Packard UN2400 Gobi Wireless Modem is a Qualcomm WWAN Adapter that is installed in a Mini-PCI Express slot. It offers various features and supports multiple frequencies for different network technologies.
Features
- Chipset: Qualcomm Gobi 2000
- USB ID: 05c6:9204 (loader)
- USB ID: 05c6:9205 (modem)
- EV-DO/CDMA (800 & 1900Mhz)
- GSM/GPRS/EDGE (850, 900, 1800 & 1900MHz)
- HSPA/UMTS (800, 850, 900, 1900 & 2100MHz)
- GPS, AGPS
- Up to 2Mbps download, 76Mbps upload (HSPA/UMTS)
- Up to 1Mbps download, 8Mbps upload (EV-DO)
Firmware
The firmware for the Hewlett-Packard UN2400 Gobi Wireless Modem is not publicly downloadable. It consists of three files: amss.mbn (firmware stage 1), apps.mbn (firmware stage 2), and UQCN.mbn (firmware stage 3 - includes configuration and carrier-specific settings).
To obtain the firmware files, you can either extract them from the pre-installed Lenovo Windows installation or use Wine to execute the Qualcomm Gobi 2000 Wireless WAN Driver installer. The default location for the firmware files is C:\Program Files (x86)\QUALCOMM\Images\Lenovo\.
Choosing the Right Firmware
The firmware images are located in different directories based on the supported carriers. Each carrier has its own directory, and the revision can be found in every file. If your carrier is not listed, the default firmware and the generic UMTS firmware should work as their revisions match.
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The firmware for the Hewlett-Packard UN2400 Gobi Wireless Modem must be loaded prior to using the device. It can be loaded automatically via udev using the gobi_loader application. The firmware image files (amss.mbn, apps.mbn, and UQCN.mbn) should be placed in /lib/firmware/gobi/ directory.
Modem
After the firmware is loaded, the modem is exposed over USB as id 05c6:920It can be accessed as a character (ttyUSB) device, and normal dial-up software can be used to create a 3G connection.
GPS
The Hewlett-Packard UN2400 Gobi Wireless Modem also supports GPS functionality. The GPS port can be accessed as /dev/ttyUSBTo enable or disable GPS, specific commands can be sent to the port. The GPS feature can be used for time synchronization and for GPS-based applications.
Carrier Specific Configurations
Each device is intended to be used with a specific carrier and is shipped with firmware to support that carrier. However, other carriers may work by loading a different firmware version. It is important to check the compatibility and availability of firmware files for specific carriers.
Troubleshooting
If the modem enters a strange state and refuses to load the firmware, there are a few troubleshooting steps that can be taken. Disabling WWAN in the BIOS and then enabling it again or performing a complete power reset by removing the AC adapter and battery pack can help reset the modem.
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The Hewlett-Packard UN2400 Gobi Wireless Modem may be found in various ThinkPad models. It is important to note that some models may require an AT&T or Verizon service contract for full functionality. Additionally, some models may have the option to upgrade to the Gobi 2000 WWAN module.
AT&T Service Contract ThinkPads:
- ThinkPad AT&T® Gobi 2000 Broadband Option 78Y1398
Verizon Service Contract ThinkPads:
- ThinkPad Gobi 2000 Broadband Option 78Y1399
Gobi 2000 WWAN Upgradable ThinkPads:
- (List of ThinkPad models)
The Hewlett-Packard UN2400 Gobi Wireless Modem is a versatile WWAN adapter that provides high-speed mobile connectivity and GPS functionality. With the right firmware and carrier-specific configurations, it can be seamlessly integrated into compatible ThinkPad models for reliable wireless connectivity on the go.
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