# EM7455 DW5811E not work

**URL:** <https://forum.sierrawireless.com/t/em7455-dw5811e-not-work/16082>\
**Category:** Uncategorized\
**Created:** [April 16, 2019, 12:02pm UTC](https://forum.sierrawireless.com/t/em7455-dw5811e-not-work/16082 "2019-04-16T12:02:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![znes](https://avatars.discourse-cdn.com/v4/letter/z/3ab097/32.png) [@znes](https://forum.sierrawireless.com/u/znes)\
**Post date:** [April 16, 2019, 12:02pm UTC](https://forum.sierrawireless.com/t/em7455-dw5811e-not-work/16082/1 "2019-04-16T12:02:25Z")

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hi, I’m sorry I don’t speak well english. I’m french.

I bought the module card in the title. My computer is a VOYO V3 VBOOK. i7-6500u. processor x64. windows 10.

I installed the firmware + drive from sierra’s website. but it doesn’t work.

help please (in simple language) ![3](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/d/d3388076d5fa2f8f38c78b74ab674393269f804f.png)