Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How did I fix the error 21 message! Can't text message!!

  • 1 reply
  • 3 have this problem
  • 10 views
  • Last reply by philipp

CassM
CassM
more options

Every time I try sending a text, an error 21 code comes up, and won't send my messages! Gggrrr! It only happens with texts..I have android phone 4.0...HELP!

Every time I try sending a text, an error 21 code comes up, and won't send my messages! Gggrrr! It only happens with texts..I have android phone 4.0...HELP!

All Replies (1)

philipp
philipp
  • Moderator
more options

Hi CassM, this is a support forum for Firefox and we probably aren't able to help you with issues about your operating system. In this case please rather contact the support of your manufacturer or your provider instead. Thank you for your understanding!