# I cannot register my O2 (Germany) SIM card with AirVantage

**URL:** <https://mangoh.discourse.group/t/i-cannot-register-my-o2-germany-sim-card-with-airvantage/5793>\
**Category:** mangOH Red\
**Created:** [December 7, 2020, 4:05am UTC](https://mangoh.discourse.group/t/i-cannot-register-my-o2-germany-sim-card-with-airvantage/5793 "2020-12-07T04:05:16Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![reinerkeilig](https://avatars.discourse-cdn.com/v4/letter/r/779978/32.png) [@reinerkeilig](https://mangoh.discourse.group/u/reinerkeilig)\
**Post date:** [December 7, 2020, 4:05am UTC](https://mangoh.discourse.group/t/i-cannot-register-my-o2-germany-sim-card-with-airvantage/5793/1 "2020-12-07T04:05:16Z")

</div>

I’m new and have a mangOH red with a WP7607 (cat 4) and can’t register my O2 SIM card.

After filling in “ICC-ID”, “IMEI” and “WP S/N”, I get “Subscription cannot be found”.

I was able to register the Sierra Wireless SIM card included in the set.

Any suggestions?

---

<div class="post-metadata">

**Author:** ![thibs](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/thibs/32/2056_2.png) [@thibs](https://mangoh.discourse.group/u/thibs)\
**Post date:** [December 7, 2020, 2:14pm UTC](https://mangoh.discourse.group/t/i-cannot-register-my-o2-germany-sim-card-with-airvantage/5793/2 "2020-12-07T14:14:06Z")

</div>

Hi Reiner,  
If you suceeded in registering the device in AirVantage using the Sierra SIM, you can swap to your O2 SIM. It should still work (if your O2 SIM is activated of course).  
.Thibs.