# EM7511 not connected to any network

**URL:** https://forum.sierrawireless.com/t/em7511-not-connected-to-any-network/25042
**Category:** MC/EM Series
**Created:** [September 28, 2021, 8:13am UTC](https://forum.sierrawireless.com/t/em7511-not-connected-to-any-network/25042 "2021-09-28T08:13:06Z")
**Posts on this page:** 7
**Page:** 2

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### Author: ![abhilashsl](https://avatars.discourse-cdn.com/v4/letter/a/eada6e/32.png) [@abhilashsl](https://forum.sierrawireless.com/u/abhilashsl)
#### Post date: [September 29, 2021, 9:42am UTC](https://forum.sierrawireless.com/t/em7511-not-connected-to-any-network/25042/21 "2021-09-29T09:42:22Z")

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but i dont have any -p flag /dev/cdc-wdm0

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### Author: ![abhilashsl](https://avatars.discourse-cdn.com/v4/letter/a/eada6e/32.png) [@abhilashsl](https://forum.sierrawireless.com/u/abhilashsl)
#### Post date: [September 29, 2021, 9:45am UTC](https://forum.sierrawireless.com/t/em7511-not-connected-to-any-network/25042/22 "2021-09-29T09:45:21Z")

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ls: cannot access ‘/dev/cdc-wdm\*’: No such file or directory

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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: [September 29, 2021, 9:56am UTC](https://forum.sierrawireless.com/t/em7511-not-connected-to-any-network/25042/23 "2021-09-29T09:56:14Z")

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how about doing the fw upgrade command without -p flag

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### Author: ![abhilashsl](https://avatars.discourse-cdn.com/v4/letter/a/eada6e/32.png) [@abhilashsl](https://forum.sierrawireless.com/u/abhilashsl)
#### Post date: [September 29, 2021, 10:04am UTC](https://forum.sierrawireless.com/t/em7511-not-connected-to-any-network/25042/24 "2021-09-29T10:04:36Z")

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fwdwl-litearm -d /dev/ttyUSB0 -t 1 --fwpath “./” --cwe SWI9X50C\_01.14.02.00.cwe --nvu SWI9X50C\_01.14.02.00\_GENERIC\_002.035\_000.nvu  
bash: fwdwl-litearm: command not found

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<div class="post-metadata">

### 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: [September 29, 2021, 10:51am UTC](https://forum.sierrawireless.com/t/em7511-not-connected-to-any-network/25042/25 "2021-09-29T10:51:45Z")

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did you download the SDK?

e.g.  
\MBPL\_SDK\_R20\_ENG4-lite.bin.tar\MBPL\_SDK\_R20\_ENG4-lite.bin\SampleApps\lite-fw-download\bin

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<div class="post-metadata">

### Author: ![abhilashsl](https://avatars.discourse-cdn.com/v4/letter/a/eada6e/32.png) [@abhilashsl](https://forum.sierrawireless.com/u/abhilashsl)
#### Post date: [September 30, 2021, 4:51am UTC](https://forum.sierrawireless.com/t/em7511-not-connected-to-any-network/25042/26 "2021-09-30T04:51:53Z")

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yes download the MBPL\_SDK\_R20\_ENG4

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<div class="post-metadata">

### 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: [September 30, 2021, 5:26am UTC](https://forum.sierrawireless.com/t/em7511-not-connected-to-any-network/25042/27 "2021-09-30T05:26:19Z")

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then you should be able to run ./fwdwl-litearm

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