# Best eSIM Guide
> Free travel eSIM troubleshooting, setup guides, and country restrictions.

## Core Purpose
We help travelers fix eSIM issues ("No Service", "Stuck Activating"), calculate data needs, and navigate country-specific restrictions (China Firewall, Turkey IMEI blocking). No login required.

## ⚡ Emergency Fixes
- [Troubleshooting Guide](/troubleshooting.html): Fix "No Service" or connection issues in 2 minutes.
- [Pre-Flight Checklist](/pre-departure-checklist.html): Setup steps to do *before* boarding the plane.
- [Device Setup](/device-setup.html): Step-by-step generic activation guides for iPhone & Android.
- [eSIM Device Checker](/device-checker.html): Check if your phone is compatible with eSIMs.

## 🌍 Destination Guides
Detailed guides for network coverage, best providers, and airport tips:
- [Japan](/japan-esim.html)
- [Thailand](/thailand-esim.html)
- [Europe](/europe-esim.html)
- [Mexico](/mexico-esim.html)

### Restricted Regions (Critical Info)
- [China](/china-esim.html): VPN & Firewall navigation.
- [Turkey](/turkey-esim.html): IMEI registration & 120-day block rules.
- [UAE/Dubai](/uae-esim.html): VoIP (WhatsApp Facetime) blocking workarounds.

## 🔧 Tools & Comparisons
- [Data Calculator](/data-calculator.html): Estimate GB needs based on trip duration.
- [Airalo vs Holafly](/airalo-vs-holafly.html): Budget vs Unlimited data comparison.
- [Country Rules](/country-rules.html): Global database of eSIM restrictions.

## 📞 Contact
- [Contact Us](/contact.html): Support for setup questions.
- [About](/about.html): Mission and editorial standards.