Huawei Mobile Wifi help please

suethedriver

I have been given a new unopened Huawei mifi  E5330 . It is in a 3 Three box. 
I contacted 3 and they said all their mifi were unlocked .
I have tried to get it working and watched a few you tube vids but still stuck.
I have put in a working sim card with data from my phone ( tesco mobile ) which has an excellent signal in my house.
I would appreciate if someone could talk me through how to get it working please.
When i usb it to my laptop it just comes up with the Three 3 page saying no network coverage ! 
Thankyou

Cisco001

Huawei E5330 is 3G.

suethedriver

So a normal phone sim card is no good then ?    I  get 4g very good signal in my house on my tesco phone sim so i guess it is not compatible if the mifi is only 3g .. ( not very techie !) 

k_man

Does Tesco mobile require custom APN settings?
Many MVNOs (mobile providers that 'piggy back' on main networks) do.

These are often sent over the air following an SMS, but not sure if Mifi support that method, so may need to be set manually.

https://www.tescomobile.com/help/device-help/accessing-the-internet/getting-online

Withbellson

suethedriver said:

So a normal phone sim card is no good then ?    I  get 4g very good signal in my house on my tesco phone sim so i guess it is not compatible if the mifi is only 3g .. ( not very techie !) 

It wasn't the most helpful remark. As k_man has suggested, you need to enter the APN settings manually. You stated that you watched YouTube videos though didn't indicate if you actually did anything.