by arnazir
New Member

Can't send with sim1 error 21

I keep getting the message error21 when I try and send a message. I thought it was my phone (moto g2). Just swopped to a new phone....Moto g4.... It's still happening.... Helppppp!!

by Grand Master
Grand Master

Re: Can't send with sim1 error 21

Check your message centre no. for EE is +447958879879.

If you think I helped please feel free to hit the "Thumbs Up" button below.

To phone EE: The local rate landline number +44 207 362 0200 or Freephone +44 800 079 8586 - Option 1 for Mobiles; Option 2 for 4G WiFi; Option 3 for Home Broadband & EE TV.

ISPs: 1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC => 2014: EE 20 Meg WBC
EE Employee

Re: Can't send with sim1 error 21

Hi and welcome to the community.


Has the above advice helped at all?


Many thanks,



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