# Network operator error

**URL:** <https://mangoh.discourse.group/t/network-operator-error/4185>\
**Category:** Uncategorized\
**Created:** [April 1, 2020, 4:53pm UTC](https://mangoh.discourse.group/t/network-operator-error/4185 "2020-04-01T16:53:50Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![SeongBeom27](https://avatars.discourse-cdn.com/v4/letter/s/76d3ee/32.png) [@SeongBeom27](https://mangoh.discourse.group/u/SeongBeom27)\
**Post date:** [April 1, 2020, 4:53pm UTC](https://mangoh.discourse.group/t/network-operator-error/4185/1 "2020-04-01T16:53:50Z")

</div>

I bought new mangoh yellow.

I use sierra USIM , so Network Operator have to be SK but,

Current Network Operator: KOR LG Uplus

root@swi-mdm9x28-wp:~# cm radio  
Power: ON  
Current Network Operator: KOR LG Uplus  
Current RAT: Module not registered on network, RAT not available  
Status: Registration was denied, usually because of invalid access credentials (LE\_MRC\_REG\_DENIED)  
Signal: Strong signal strength (4)  
PS: Packet Switched Not registered (LE\_MRC\_REG\_NONE)

band problem??

I did it bellow command

AT!ENTERCND=“A710”

AT!SELRAT=06

AT!BAND=02,“KOR LTE”,0000000000000000,0000000000000010,0000000000

AT+CGDCONT=1,“IP”,“m2m-router.lguplus.co.kr”

AT+CFUN=1,1

---

<div class="post-metadata">

**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\
**Post date:** [April 2, 2020, 1:28am UTC](https://mangoh.discourse.group/t/network-operator-error/4185/2 "2020-04-02T01:28:51Z")

</div>

i think you need to use LGU+ PRI FW.  
But currently there is no such FW can be downloaded…

---

<div class="post-metadata">

**Author:** ![SeongBeom27](https://avatars.discourse-cdn.com/v4/letter/s/76d3ee/32.png) [@SeongBeom27](https://mangoh.discourse.group/u/SeongBeom27)\
**Post date:** [April 2, 2020, 4:16am UTC](https://mangoh.discourse.group/t/network-operator-error/4185/3 "2020-04-02T04:16:26Z")

</div>

I solve this problem thank you!!

---

<div class="post-metadata">

**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\
**Post date:** [April 2, 2020, 4:31am UTC](https://mangoh.discourse.group/t/network-operator-error/4185/4 "2020-04-02T04:31:38Z")

</div>

BTW, how did you solve?

---

<div class="post-metadata">

**Author:** ![SeongBeom27](https://avatars.discourse-cdn.com/v4/letter/s/76d3ee/32.png) [@SeongBeom27](https://mangoh.discourse.group/u/SeongBeom27)\
**Post date:** [May 2, 2020, 5:18am UTC](https://mangoh.discourse.group/t/network-operator-error/4185/5 "2020-05-02T05:18:12Z")

</div>

just waiting!! that’s at all