Hello @Hemnath and may I extend a Warm Welcome to the Samsung Community Forum Section for Uk and Eu Members 👋
Try a forced reboot by holding down the volume down key and power button simultaneously for more than 7 seconds to restart it. When your phone resets, you will feel it vibrate.
As a process of elimination can you try your sim card in another phone to see if those apps work or not.
I would suggest just to double check the permissions in your apps to ensure they look correct.
The apps that don't seem to want to use mobile data you could try clearing the cache of the app.
Long hold on the app icon and tap on the i and then Storage and Clear Cache.
You could also reset the Network Connections via Settings > General Management > Reset > Reset Network Connections.
A broadsworded option is >
- 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 }
If i can be of any further help please don't hesitate to ask 😎
Daily Driver > Samsung Galaxy s²⁵ Ultra 512Gb ~ Titanium Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
