Checking Compatibility
Before diving into troubleshooting, it's crucial to ensure that your device is compatible with eSIM technology. Not all phones support eSIMs, so your first step should be to check your phone's compatibility. Visit eSIM Compatible devices to find a comprehensive list of devices that support eSIM. This resource will provide you with up-to-date information on various phone models across different operating systems, helping you verify if your device can use eSIM.
The "*#06#" Code: This code displays your IMEI (International Mobile Equipment Identity). Some phones might also show an EID (Embedded Identification Document) number if an eSIM is present. However, the lack of an EID doesn't guarantee that your phone doesn't support eSIM.
Understanding eSIM Internet Connection Problems
Despite your eSIM appearing connected, you might face difficulties such as extremely slow download/upload speeds, the persistent appearance of "E" (Edge) instead of 4G/LTE, or a complete lack of internet connection.
These issues can stem from various factors, which we will address along with solutions to ensure you can efficiently resolve them.
Troubleshooting Steps
Before You Start: Preserve Your eSIM
IMPORTANT: Do not delete the eSIM from your phone. If you encounter issues, follow the steps below or contact support for assistance: admin@esimfox.com
1. Verify eSIM Service Area
Service Area Limitation: Ensure you're within the service area of your eSIM. For instance, an eSIM purchased for France will only operate within France. Installation is possible anywhere, but connectivity is region-specific.
2. To Fix iPhone eSIM Not Working:
Ensure Strong Coverage: Before proceeding, make sure your device has a strong network signal. Weak coverage can often be the root cause of eSIM problems.





