Since Wi-Fi works normally, the issue is likely related to the mobile network, SIM, APN settings, or carrier congestion rather than the phone's internet hardware.
• Check that the correct APN is selected for your network provider and reset it if necessary.
• Try switching between 5G and 4G/LTE to see whether one network mode performs better.
• Test the same SIM in another phone at the same location. If mobile data is also slow there, your carrier or local tower may be the cause.
• Check whether your daily/monthly data limit has been reached or whether your carrier has reduced the speed after reaching a usage threshold.
• If the SIM works normally elsewhere, update the Redmi Note 13 software and have the phone's antenna/network hardware checked if the problem continues.
📱Mastermobile
MobileTech
Answering smartphone and mobile tech questions in MobileTech Q&A.