# I can't registered radio (USIM)

**URL:** https://forum.legato.io/t/i-cant-registered-radio-usim/4552
**Category:** Uncategorized
**Created:** [July 11, 2019, 2:32am UTC](https://forum.legato.io/t/i-cant-registered-radio-usim/4552 "2019-07-11T02:32:51Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![SeongBeom27](https://avatars.discourse-cdn.com/v4/letter/s/76d3ee/32.png) [@SeongBeom27](https://forum.legato.io/u/SeongBeom27)
#### Post date: [July 11, 2019, 2:32am UTC](https://forum.legato.io/t/i-cant-registered-radio-usim/4552/1 "2019-07-11T02:32:51Z")

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I use WP8548 module and sierra USIM

I finished getting started almost! but… last problem is regisetered radio

when i command

cm radio off  
cm data pdp ipv4  
cm radio on  
cm radio rat GSM  
cm radio

i can see this select

- Not registered and not currently searching for new operator (LE\_MRC\_REG\_NONE)

wait few minutes… it doesn’t change … help i don’t know this problem

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### Author: ![raf](https://avatars.discourse-cdn.com/v4/letter/r/848f3c/32.png) [@raf](https://forum.legato.io/u/raf)
#### Post date: [July 11, 2019, 5:56am UTC](https://forum.legato.io/t/i-cant-registered-radio-usim/4552/2 "2019-07-11T05:56:25Z")

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Hi @SeongBeom27,

What’s your output from these two commands?

`cm sim`  
`cm sim info`

Also, what hardware are you using the WP8548 module in?  
Is it a mangOH board, and if so, which one (Green, Red)?

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### Author: ![plu](https://avatars.discourse-cdn.com/v4/letter/p/e19b73/32.png) [@plu](https://forum.legato.io/u/plu)
#### Post date: [August 1, 2019, 7:52am UTC](https://forum.legato.io/t/i-cant-registered-radio-usim/4552/3 "2019-08-01T07:52:37Z")

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Hi @SeongBeom27,  
could you please give more detail about your configuration : hardware platform/firmware inside device?  
and check as Raf suggested the CM SIM commands?  
Best Regards