# EM7355 not detecting 4G

**URL:** <https://forum.sierrawireless.com/t/em7355-not-detecting-4g/8942>\
**Category:** General wireless topics\
**Created:** [December 6, 2016, 1:39am UTC](https://forum.sierrawireless.com/t/em7355-not-detecting-4g/8942 "2016-12-06T01:39:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![saintofinternet](https://avatars.discourse-cdn.com/v4/letter/s/b5e925/32.png) [@saintofinternet](https://forum.sierrawireless.com/u/saintofinternet)\
**Post date:** [December 6, 2016, 1:39am UTC](https://forum.sierrawireless.com/t/em7355-not-detecting-4g/8942/1 "2016-12-06T01:39:35Z")

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hi,

i am from India and my Thinkpad L440 has a EM7355 card in it.

somehow it cannot detect 4G signal here. i am using Vodafone SIM card. it works max on 3G…

help requested…

regards,  
-siddharth

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**Author:** ![Moderator1](https://avatars.discourse-cdn.com/v4/letter/m/9fc348/32.png) [@Moderator1](https://forum.sierrawireless.com/u/Moderator1)\
**Post date:** [December 7, 2016, 5:42am UTC](https://forum.sierrawireless.com/t/em7355-not-detecting-4g/8942/2 "2016-12-07T05:42:53Z")

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Hi,  
Issue related to EM73xx is out of this forum scope. You can contact Sierra wireless technical support team.

Regards,  
Moderator