How to check the cell ID service on the phone ?

Dear User,

Your device is iOS or Android? it related to version as well

iPhone Field test mode: *3001#12345#*

SAMSUNG Field test mode: *#0011#

Android Field test mode: 

Accessing Field test mode on Android phones is also straightforward. You simply need to find your way to “Settings” > “About Phone”, and your numerical signal strength will be available under either Network or Status, depending on the model of the phone you own.

Below link is Huawei secret mode:

https://consumer.huawei.com/en/community/details/[Tips-&-Tricks]-5-Secret-Menu-Codes-That-Unlock-Hidden-Features-on-Your-Huawei-Smartphone/topicId_5248/

Thanks!

Dear user,

Thanks for reaching out to us. We are sorry for the inconvenience caused. Since you are visiting our Enterprise product page, we would suggest a visit to our page dedicated to personal devices to better solve this question.

We have the Huawei Community support (https://consumer.huawei.com/en/community/list/?forumId=10014), where you can get the answer online and also service hotlines for each country or region. You can get the regional hotline number via https://consumer.huawei.com/en/support/hotline.