Mobile Data is not working after the recent update.

[jerry_j]

Hey Guys,

I am using S23 Ultra, everything was going smooth until I did the October 2024 security patch update. After which, the mobile data has begun not to work properly. It is showing me 4G+ sign on top as usual, and if I connect my phone to my laptop via mobile hotspot, my laptop gets to access internet and do stuff. It is just WhatsApp that is working fine on my phone where I am getting messages and being able to send messages and do video calls as well, rest all apps are not working at all, not even Google.

Can somebody give me a solution?

[BandOfBrothers]

Hi @jerry_j and may I extend a Warm Welcome to the Samsung Community Forum 👋 

I would first suggest a soft reboot by turning the phone Off and On. 

Also tyrn your Mobile Data Off and On. 

Go into Settings > Connections  > Mobile Networks > Network Mode  > Change to 4G if set to 5G. 

If this does not help then try >

• Clear Cache Files from the phone's System Partition Section  > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop or use a Tv's USB Port to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too { Possibly excluding the s²⁴ Series of phone's } 
• Reset your Network Connection via Settings > General Management > Reset > Reset Network Connections > Reboot the phone. 

If this is happening in one area then this could be a network congestion issue or mast issue. 

Samsung Link > https://www.samsung.com/uk/support/mobile-devices/how-to-troubleshoot-mobile-data-issues. 

If you perform a forum search you may find existing threads with some further help or guidence within.  

If i can be of any further help please don't hesitate to ask  😎 

[jerry_j]

Thank you for your time. I tried doing them but none of them worked. I wiped the cache from recovery menu. Still it's not working. 

[Tourbillon De La Vie]

If mobile data wasn't working then you whatsapp wouldn't work either. Check under settings/connections/more connection settings / private dns. Set to off 

[Pratik2]

None of the resolutions provided here are working. Has anyone else tried anything else?

[eashfords]

I'm having this exact same problems since mid October 2024. I have two Samsung devices and s22 and s23 and I am experiencing the exact same thing with both devices they repeatedly keep disconnecting and reconnecting to the mobile network. I'm with AT&T  for mobile service, I have contacted them they have done a network reset probably 20 times since this started it has not helped. AT&T sent me new SIM cards, they have been installed but the issue still exists. They have advised me to contact Samsung I have contacted Samsung on multiple occasions they have sent me to the uBreakiFix store and they have advised me that there's nothing they can do that this is a Samsung issue.  I have gone into both devices and reset the mobile network several times.

I have been a loyal Samsung phone user since Samsung began making cell phones, this needs to be resolved and it needs to be resolved quickly. This issue is putting all Samsung users at risk for safety issues if I'm out on the road and neither one of my devices work and there's something going on with me and I need to make an emergency call or I need to call a family member I may not be able to do that. Also I conduct business on both of my devices I have not been able to keep in contact with customers have not been able to keep in contact with vendors because my calls are going to voicemail the only time my phone will work is whenever I'm on a Wi-Fi connection and I use the Wi-Fi calling option. I'm having this exact same problems since mid October 2024. I have two Samsung devices and s22 and s23 and I am experiencing the exact same thing with both devices they repeatedly keep disconnecting and reconnecting to the mobile network. I'm with AT&T  for mobile service, I have contacted them they have done a network reset probably 20 times since this started it has not helped. AT&T sent me new SIM cards, they have been installed but the issue still exists. They have advised me to contact Samsung I have contacted Samsung on multiple occasions they have sent me to the uBreakiFix store and they have advised me that there's nothing they can do that this is a Samsung issue.  I have gone into both devices and reset the mobile network several times.

I have been a loyal Samsung phone user since Samsung began making cell phones, this needs to be resolved and it needs to be resolved quickly. This issue is putting all Samsung users at risk for safety issues if I'm out on the road and neither one of my devices work and there's something going on with me and I need to make an emergency call or I need to call a family member I may not be able to do that. Also I conduct business on both of my devices I have not been able to keep in contact with customers have not been able to keep in contact with vendors because my calls are going to voicemail the only time my phone will work is whenever I'm on a Wi-Fi connection and I use the Wi-Fi calling option.  We need real help and real solutions!

[eashfords]

I have done the same....I've been to 3 different states since this begin so it's not an area or coverage issue.

This is DIRECTLY related to the last Samsung update, I have 2 phones and they both begin the exact same thing immediately after the update. 

[eashfords]

Right, I have tried every suggestion here multiple multiple multiple multiple times. I am extremely fed up with this issue it's been going on for too long!

[adriantamburini]

This has happened to me for the first time today. 

Using my mobile phone, I called my mobile provider (Telstra) and they have confirmed that there are no outages with the network, they also confirmed that I have not exhausted my data usage for the month and they have found no reason as to why some apps are not working. 

Whatsapp, Youtube, Instagram all work, but Samsung Internet, Google Chrome, Bing, and other apps don't work at all. 

I have followed all the instructions above but still I have no mobile data to these apps. 

What's going on, Samsung???

[AndrewL]

@adriantamburini: Please try heading to Settings > Connections > Data usage > Allowed network for apps > Make sure that 'Mobile data or Wi-Fi' is selected for any of the affected apps. If the issue persists, head to Settings > Apps > Samsung Internet (as an example) > Mobile data > Allow background data usage > On.