
eSIM Loss of Signal: Causes and Effective Solutions
, by Sim Du Lịch AVIRO, 5 min reading time

, by Sim Du Lịch AVIRO, 5 min reading time
eSIMs are becoming increasingly popular in the modern world, especially with international travelers, due to their convenience, speed, and the fact that they don't require removal and reinstallation like physical SIMs. However, many users experience issues with their eSIMs losing signal, having a weak signal, or no service, which affects their user experience. In this article, My SIM will help you understand the causes and effective solutions to ensure a stable connection anytime, anywhere.
eSIM losing signal/weak signal
Source: Canva
Many users wonder if eSIMs have a weaker signal than physical SIMs. The answer is no. An eSIM is merely a form of electronic SIM information storage within the device and does not reduce signal quality. However, because it is a new technology, a weak eSIM signal or loss of signal can be due to incorrect device configuration, software errors, or being in an area with a weak signal.
When your eSIM has no signal, you may encounter many inconveniences such as being unable to make calls, access 4G/5G networks, or even lose communication while traveling. This is especially likely to happen when you are in areas with weak signals such as basements, elevators, rural areas far from the city center, or tall buildings with signal-blocking structures.
Source: Canva
Understanding the impact of an eSIM losing signal is essential, but more importantly, you need to understand the root causes of this situation. Identifying the correct cause will help you choose the appropriate solution, avoiding wasted time trying ineffective measures. Below are common reasons why an eSIM may experience signal loss or a weak signal.
One of the most common reasons an eSIM loses signal is being in an area with poor signal, such as remote areas, basements, areas with many tall buildings, or enclosed spaces. Additionally, the network provider may be experiencing technical issues or maintenance, causing signal disruptions.
Some users encounter errors because eSIM activation is not complete or the network settings are incorrect for the network provider. Selecting the wrong frequency band or enabling the wrong network mode (e.g., only 2G or 3G) can also lead to a weak signal or no service.
Outdated operating systems (especially older iOS or Android versions) can cause conflicts that prevent eSIMs from functioning stably. Some conflicting apps can also affect network signals.
It may sound simple, but many people accidentally turn on airplane mode without realizing it, causing their phone to lose connection to the mobile network.
Although eSIMs do not require a slot like physical SIMs, the modem inside the device can malfunction, leading to signal loss. This is a rare case, but you should consider it if you have tried other methods without success.
Some eSIMs may have technical errors during the download or setup process. In this case, you will need to replace the eSIM with a new one from your service provider.
Source: Canva
Once you have identified the cause, depending on the specific situation, you can apply the methods below to restore the signal quickly and effectively.
Get out of basements, enclosed spaces, or weak signal areas to ensure your phone can reconnect. You can ask people around you if they are experiencing similar issues to determine if it's due to the area or your device.
Check your phone to see if airplane mode is on. If it is, turn it off and wait a few seconds for the phone to automatically reconnect to the mobile network.
Go to Settings > Software Update to ensure you are running the latest version of iOS or Android. Many connection issues can be resolved with these updates.
This is a simple yet effective method that many people use. Restarting helps the device refresh its network connection and resolve temporary errors causing signal loss.
Go to Settings > General > Reset > Reset Network Settings. This action will not delete your data, but you will need to re-enter Wi-Fi passwords and reconfigure VPNs (if any).
A low battery can reduce device performance, affecting signal reception. Additionally, if you are using a phone case that is too thick or contains metal, remove it to help improve the signal.
If you have tried all the above methods and still have no signal, contact your network provider (e.g., My SIM) for assistance. We are always ready to help you check, troubleshoot, and reissue an eSIM if needed.
An eSIM losing signal can cause many inconveniences, but most can be resolved quickly if you understand the causes and solutions. From checking airplane mode, updating software, to resetting eSIMs or contacting the provider – all are easy to do. Additionally, if you are looking for a stable, easy-to-use travel eSIM solution with dedicated support, check out our My SIM eSIM packages on our website!