If your LTE (4G) data is suddenly slow, here are some possible reasons and troubleshooting steps to fix it:
If many people are using the same network in your area, it can cause network congestion and slower speeds. Try to wait and try again later.
Low signal strength:
If your phone is not receiving a strong enough signal, it can lead to slower speeds. Try moving to an area with better network coverage or moving closer to a window or outside.
Your network service provider may throttle your network speed if you have exceeded your data usage limit or if you are in an area with high network usage. Check with your provider to see if this is the case.
If your phone is old or outdated, it may not be able to support the latest network technologies, leading to slower speeds. Consider upgrading your phone hardware if it’s outdated.
If you have many apps running in the background, they may be using up your phone’s resources and causing slower speeds. Close any unused background apps.
If there are software issues on your phone, such as outdated software or bugs, it can cause slower speeds. Check for any software updates and install them.
If your phone’s cache is overloaded, it can slow down your phone’s performance, including its network speed. Clear your phone’s cache.
SIM card issues:
Try removing your SIM card and reinserting it, or try using a different SIM card to see if it improves the speeds.
If the problem persists, you may want to contact your network service provider to check for any issues on their end or consider changing your provider.