Iphone 15 Pro Max - Weak Signal when eSIM is active

I've bought Iphone 15 Pro Max a couple of weeks ago. I've originally installed a physical sim card and my 4G-5G signal was excellent, better than the 13 Pro Max's. A few days ago, I added a second eSIM from a different carrier and the signal went from excellent to barely have any.


I've tried making calls using the 5G network on Viber, WhatsApp, Teams, Messenger etc. but every time is the same, the line cuts off due to poor signal. If I deactivate the eSIM, the signal becomes excellent again.


Did anyone have any similar issues and found a way to fix it?

iPhone 15 Pro Max

Posted on Dec 22, 2023 02:36 AM

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Question marked as Top-ranking reply

Posted on Dec 22, 2023 02:38 AM

Please check the internet speed and the bandwidth that you are getting. Disable WiFi before running this Field Test.


You may check the current LTE band/5G/4G/3G by dialing *3001#12345#* and pressing the call button and then selecting the Serving cell info option


Bandwidth on the 2nd and 3rd Screenshots.


See the pic below which is self-explanatory

Similar questions

6 replies
Question marked as Top-ranking reply

Dec 22, 2023 02:38 AM in response to _Salsi_

Please check the internet speed and the bandwidth that you are getting. Disable WiFi before running this Field Test.


You may check the current LTE band/5G/4G/3G by dialing *3001#12345#* and pressing the call button and then selecting the Serving cell info option


Bandwidth on the 2nd and 3rd Screenshots.


See the pic below which is self-explanatory

Dec 22, 2023 02:37 AM in response to _Salsi_

If you encounter any challenges with third-party applications, the best course of action is to directly contact the app developer for further assistance. Here's a brief guide on how to do it:


  1. Identify the app developer.
  2. Visit their website or app store listing.
  3. Look for their contact information or support channels.
  4. Clearly describe the issue you are facing.
  5. Provide any necessary information they may need.
  6. Follow their instructions and provide feedback.
  7. Be patient and follow up if needed.


By reaching out to the app developer, you increase your chances of receiving accurate and personalized support for the challenges you're experiencing. To contact an App developer --> How to contact an app developer - Apple Support



How to contact a Web Publisher or the Host


Contacting a web publisher or the host of a website can be helpful for various reasons, such as reporting issues with the website, seeking permission to use content, or addressing copyright concerns. The process may vary slightly depending on the website, but here are some general steps you can follow:


  1. Check the Website: First, visit the website and look for a "Contact" or "About Us" page. Many websites provide contact information there, including email addresses or contact forms.
  2. Web Hosting Company: If you have an issue related to the website's hosting, such as reporting abuse or copyright infringement, you can try contacting the web hosting company. To find the hosting company, you can use online tools like "whoishostingthis.com" or similar services. Once you identify the hosting company, visit their website and look for contact information or support options.
  3. Be Clear and Polite: Whether you are reaching out via email, contact form, or social media, always be clear, concise, and polite in your communication. Clearly state the reason for contacting them and provide any necessary details to help them understand your request or concern.
  4. Give Time for a Response: Allow some time for the web publisher or hosting company to respond. It may take a few days, depending on their responsiveness.


Remember, always be respectful in your communication, and avoid any hostile or aggressive language, as it is unlikely to yield a positive response.


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Iphone 15 Pro Max - Weak Signal when eSIM is active

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