Mobile data

[josh5]

Lost my mobile about 4 months ago, got a lend of a mobile to use, o2 sent me out a new sim, with the same number, but my mobile data hasnt worked since, costing 30 a month, and i cant use it, 02 dont have a clue, phoned them and called in to local store.

[MI5]

@josh5 

Check your apn https://community.o2.co.uk/t5/Android-Devices-Samsung-HTC-Sony/Connecting-Android-Phone-to-Data-Serv... or just reset your network settings.

Is the new sim the correct type for your account?

[gmarkj]

Have you tried all of this @josh5?
Put your sim in another phone - does data work on the other phone?
Put another sim in your phone - does data work on your phone?
Was either the lost phone an iPhone and the replacement not (or the lost one not and the replacement is)?
Have you checked your network settings match the ones on the link below:
https://lowdown.carphonewarehouse.com/how-to/o2-apn-settings/40702/
If you have tried all of the above, then please come back and let us know...