General

Getting Started

• What is eSIM?
• Which devices support eSIM?
• How is mobile data measured and how much data do I need?
• Why CELITECH?

eSIM Installation

• How can I install eSIM on iPhone?
• How to fix an issue with eSIM activation link?
• How can I install eSIM on Android phone?
• For which countries I need to update the APN for my Android phone?
• What does "No usable data found" mean after scanning the eSIM QR code?
• Why is my eSIM showing "Activating"?

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Service Guide

• Does CELITECH eSIM include a phone number or support hotspot?
• When shall I activate my eSIM?
• How can I check my travel data balance and top up?
• How can I troubleshoot service issues?
• Does TikTok work with the travel eSIM?
• What is the eSIM service Cancellation Policy?

Device Issues

• Can I use travel eSIM with my primary line?
• How can I troubleshoot my device connection?
• What happens if I delete my eSIM from my device?
• How can I check if my mobile phone is unlocked (i.e. not carrier locked)?
• How can I unlock my device?