Cell signal strength flactuate or no signal ever since upgrading from iOS 15 to iOS 16

Before upgrading from iOS 15 to iOS16, my iPhone X is working perfectly fine. However, ever since I upgrade to iOS 16 onwards, my signal strength will keep disappearing and the sometime full bar or drop to 1 bar or to 3 bar or 2 bar at the same spot within 10 mins. Sometimes it even reboot my phone and when on, no signal. Have been upgrading for the past two iOS 16 upgrade … now with the iOS 16.4, is worst. Totally no signal and can only rely on wifi. Sometimes, cell signal will come back and flactuate and eventually no bar.


do note have change SIM card and use different mobile carrier as well as replace new battery which is now 100% for battery health. But nothing helps and hope next upgrade will resolve my mobile signal problem

iPhone X, iOS 16

Posted on Apr 5, 2023 07:25 AM

Reply

Similar questions

4 replies

Apr 5, 2023 09:29 AM in response to steveqj

Many users who have updated to iOS 16 and above must have a similar issue if the issues stated by you are due to the iOS.

Unless you state what the issue is many in this forum may not be able to respond positively to the issue you are facing. 



With the limited information that you have provided, It is hard to even guess the problems faced by you. 


You may get faster and better responses to your query by --> Writing an effective Apple Support Commun… - Apple ...



Please re-post with detail so that someone else can help.



Apr 15, 2023 04:22 AM in response to steveqj

steveqj wrote: "The repair man mentioned there is nothing wrong with the hardware when replaced the battery."

stevegi ~ Check that repair man's credentials here:


Repair Provider Verification - Official Apple Support


...Does he get a big ✅? Because Apple says: "Using nongenuine batteries might also result in unexpected behavior after installation, device software updates, or while charging. Using nongenuine batteries might also lead to safety issues." Source:


About genuine iPhone batteries


...Found by searching Apple's Knowledge Base.


õ¿õ¬

Apr 6, 2023 09:57 AM in response to steveqj

Thank you for taking the time to read. I'm talking about my mobile signal strength on my iPhone X. My phone had no problem when using iOS 15 as well as iOS16.1.


However, the moment I upgraded to iOS 16.2, my mobile signal strength tend to drop from 5 bar to only 3 bar and always fluctuate between 3 bar and no signal strength and also reboot the phone by itself. It persist even when i upgrade to iOS 16.3.


However, when i upgraded to iOS 16.3.1, things start to goes back to normal in which the mobile signal strength at most maximum 3 bar and it doesn't drop to 0 and restart the phone by itself.


But now upgraded to iOS 16.4, my mobile signal strength totally gone. Only have to restart my iPhone a few times, when the phone turns back on, it displayed my mobile signal strength on full bar but will drop to 3 bar and then no signal within a minute. I also had tried to insert other mobile carrier sim card in which unable to detect any signal unless i reboot the iphone a few times before i get full signal before drop to no signal.


Hence now my mobile phone can only connect to wifii in order to use the apps.


FYI, i had changed a new battery on my iPhone X (as to rule out is a battery problem). The repair man mentioned there is nothing wrong with the hardware when replaced the battery. Mentioning most probably is the software causing the problem especially i had mentioned him about what i had experience from iOS 15 to iOS 16.4.


Now i hope i can reformat my iPhone X to iOS 15 but i know it can't be done. Hence, i hope the next iOS upgrade will be able to solve or fix my mobile signal strength problem as now i totally cannot use the phone to surf the net using mobile data or make any phone call (even though i had tried to use different mobile carrier's sim card).


FYI, the sim card if placed on iphone 6 or samsung, there is no issue. Furthermore, i had went to mobile operator to replace a new sim card already.


Hence, Hope if anybody have any solutions or alternative to resolve my mobile issues (if they had same issue as me) beside waiting for the next iOS upgrade.


Thank You

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Cell signal strength flactuate or no signal ever since upgrading from iOS 15 to iOS 16

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.