# Reset default of AT!NVPLMN

**URL:** <https://forum.sierrawireless.com/t/reset-default-of-at-nvplmn/29449>\
**Category:** MC/EM Series\
**Created:** [April 4, 2023, 4:57pm UTC](https://forum.sierrawireless.com/t/reset-default-of-at-nvplmn/29449 "2023-04-04T16:57:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![vjchkins](https://avatars.discourse-cdn.com/v4/letter/v/f0a364/32.png) [@vjchkins](https://forum.sierrawireless.com/u/vjchkins)\
**Post date:** [April 4, 2023, 4:57pm UTC](https://forum.sierrawireless.com/t/reset-default-of-at-nvplmn/29449/1 "2023-04-04T16:57:04Z")

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in EM9191 i have set the AT!NVPLMN. Is there any way to reset it?  
modem is set a MCC,MNC pair using AT!NVPLMN doest it mean this modem will work only on that PLMN ? any way to revert ?

Thanks.

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [April 4, 2023, 5:17pm UTC](https://forum.sierrawireless.com/t/reset-default-of-at-nvplmn/29449/2 "2023-04-04T17:17:01Z")

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have you tried with different operator and see if it only locks to particular PLMN?

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<div class="post-metadata">

**Author:** ![vjchkins](https://avatars.discourse-cdn.com/v4/letter/v/f0a364/32.png) [@vjchkins](https://forum.sierrawireless.com/u/vjchkins)\
**Post date:** [April 5, 2023, 5:22pm UTC](https://forum.sierrawireless.com/t/reset-default-of-at-nvplmn/29449/3 "2023-04-05T17:22:42Z")

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Thanks for the input @jyijyi , The is one think i should try.

I dont have a different carrier sim currently to try. i will have to try that out. will update once i try with different carrier other than the one in which i locked it out.