iPhone 17 Pro Max SMS signal issues and slow 5G connection

Hi,

I changed android to iPhone 17 pro max and I have connection issues with new iPhone.

actually I don’t have any problems with android devices. However, after I changed iPhone, group text messages with pictures are receiving badly. The images are broken like old style tv without signal(gray mosaics withe rainbow mosaics together). Or I cannot see pictures preview (empty white blank or blurry). Also, 5G is painfully slow, even access this site, choosing the products page, picture is X mark(not loading). Additionally, also I cannot post easily thru the 5G connection. The system showing the try again in few moments.

How can I improve the sms signal (not iMessage) and stabilize 5G connection?


Thank you.


[Re-Titled by Moderator]

Original Title: How to improve signal?

iPhone 17 Pro Max, iOS 26

Posted on Oct 1, 2025 10:00 AM

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1 reply

Oct 1, 2025 4:39 PM in response to seongmin49

seongmin49 wrote:

Hi,
I changed android to iPhone 17 pro max and I have connection issues with new iPhone.
actually I don’t have any problems with android devices. However, after I changed iPhone, group text messages with pictures are receiving badly. The images are broken like old style tv without signal(gray mosaics withe rainbow mosaics together). Or I cannot see pictures preview (empty white blank or blurry). Also, 5G is painfully slow, even access this site, choosing the products page, picture is X mark(not loading). Additionally, also I cannot post easily thru the 5G connection. The system showing the try again in few moments.
How can I improve the sms signal (not iMessage) and stabilize 5G connection?

Thank you.

[Re-Titled by Moderator]
Original Title: How to improve signal?

all of those features are your phone carrier, report the issue to them.

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iPhone 17 Pro Max SMS signal issues and slow 5G connection

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