1.) Power your phone off, then back on.
2.) If you still see a No SIM error, do not remove the sticker from you SIM card, please contact the 24/7 KnowRoaming Support Team: firstname.lastname@example.org or 1-888-357-7347
|Contact our Customer Support 24/7 on WhatsApp by adding +1-888-357-7347 to your contacts.|