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Locking 4G/3G Device in 3G


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#1 Zulu

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Posted 03 April 2012 - 08:28 AM

Is it possible to "lock" a 4G/3G device like a Sierra Wireless 250U in 3G mode so that it doesn't even look for 4G service? If possible, is this something that is device/network specific?

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#2 Bill Adams

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Posted 03 April 2012 - 08:36 AM

If you are using Verizon Access Manager (VZAM), with the device plugged in and the modem active you can hit Ctrl-D and enter the password diagvzm. You will find the setting options there and you can choose the 3G option only.
Some cards like my Pantech have a utility of there own as well at allow this option as well.

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#3 Gord

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Posted 03 April 2012 - 08:36 AM

If you go over to DSL Reports and check out the Sprint or Millenicom forums someone using that device will be able to give you an answer.

Is it possible to "lock" a 4G/3G device like a Sierra Wireless 250U in 3G mode so that it doesn't even look for 4G service? If possible, is this something that is device/network specific?




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#4 Mobile_Matt

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Posted 03 April 2012 - 02:19 PM

I don't believe that the 250U has anyway you can lock it in via the software. If your using a Cradlepoint router you can configure it to lock into either 3G or 4G. For reference on older Sprint cards were compatible with a program called "Sierra Watcher", which allowed you to lock the modem into 3G only.