Troubleshooting the UML290 Verizon USB Modem

Steps to troubleshooting the UML290 Verizon USB Modem.

1) Unplug the modem from the computer and turn the computer TOTALLY off. Restart it and than try again.

2) How many bars of signal does VZ access manager show?

3) What colour is the light on the side of the modem? The colour codes are:

      No light - device has no power or has gone bad

      Solid Blue  - Connected to PC and is connected to network.

      Red - Connected to PC but has no service.

4) Check for an outdated Antivirus and remove it. This is often the "trouble maker" when the computer doesn't recognize the modem or will not connect.
Go to Control Panel>System Security>Action Center, Drop down the
security bar and see what antivirus program it shows. Go to Control Panel>Software>Add/Remove
programs and uninstall.

5) Re-install VZ Access Manger.
First of all remove the modem. Once removed, go to Control Panel > Programs and Features and look for VZ Access Manger. Right-click on it and press uninstall. It will guide you through the uninstallation process. Once done, go back to the list of programs and look for PANTECH UML290 Driver. Uninstall it as well. Once it has uninstalled turn the computer totally off and than restart the computer. Do not insert the modem yet but insert the cd that would've come with the modem as well. Press Run when prompted and click on Software. Go to UM290 VZ Modem > Select the proper folder. Double click on the file and it will guide you through the installation process. Once done, reboot again. Once the computer is up and running insert your modem and open VZ Access Manager and try connecting.

6) Does the modem light up when you plug it in? Does the computer ding when you insert it? Or show the little icon that allows you to eject it safely? If it doesn't it's very likely the modem has gone bad.

7) You get an error saying Unknown Error (code: 2107) or when you hit connect on the VZaccess manager it starts connecting and than throws the following error message. "Windows Mobile Broad Band is not working, Error code MBNOX80548212".

  A) Open VZAccess Manager and go to Help > WWAN Device Info

  B) Verify that the modem has and uses Firmware Version LO290VWBB12F.248
Note: If it doesn't than it shouldn't throw this specific error in the first place but it's worth double checking.

  C) Close that window and go back up beside Help to Options > Preferences > Connect. Select "LAN Adapter" in the drop down box below "Device Operating Mode" and press Yes.

  D) It'll take a little for it to reconfigure the modem. Once it is done it will show a prompt that says "To complete the device operating mode switch, VZAccess manager will now be closed."

  E) Once it's closed unplug the modem and plug it back in.

  F) Re-open VZAccess Manager and hit connect. You should be connected!

8) Try locking the modem to only connect 2G or 3G:

     When mobile broadband users are experiencing signal strength issues, the most common assumption is that an antenna or amplifier is needed. While antennas and amplifiers can certainly be very helpful, Verizon mobile broadband users have one other step they can take to help lock in their 3G signal: they can set their modem to only connect to Verizon's 3G network and ignore the 2G network. This can be very helpful in situations where there are multiple towers that the modem is trying to connect to, and one (or more) of them is only broadcasting 2G (AKA 1xRTT or NationalAccess) - by telling your modem to only connect to 3G, you can stop it from jumping over to towers that only have the slower 2G service. Depending on your individual signal situation, this may not solve your problems completely (you may still want an antenna - if you're not sure, do a site survey ), but it can stop the annoying pattern of switching back and forth between high-speed 3G and slow 2G service!

Below are the instructions to set your Verizon modem to 3G-only mode:

Open VZAccess Manager with your card inserted, but do NOT connect to the internet.
Hold Control + D
You will be prompted to enter a password. Enter: "diagvzw"
Select "Settings" from the menu
Select "HDR Only" for "preferred operating mode", as shown below (This is the only setting that should be changed)

Save settings, then close and restart VZAM.
Once you restart VZAM, your modem will only be able to connect to 3G/EVDO. If you travel to an area where only 1xRTT coverage is available, you can easily change your settings back by following the steps above and selecting "automatic" as your "preferred operating mode".

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