Galaxy Note 20 cannot connect to 4G

[chriskillian7]

My phone connects to wifi well. But when I go out, I can't get 4G. When mobile data is turned on, it only shows E... before upgrading or updating the phone it still works fine.
Does anyone have similar problems?
Do you have any way to fix it?
I have tried many different solutions but still have the same problem
Thanks!

[Mark7com]

Try turning wifi off

[Samsung_Moderator · Accepted solution]

Hello, We understand how frustrating it is when your phone is unable to maintain a connection to mobile data.

This article provides the troubleshooting available for poor signal strength. It includes steps such as resetting the network, testing in Safe Mode, and a factory reset. https://www.samsung.com/us/support/troubleshooting/TSG01001598

When troubleshooting is not effective, the Samsung warranty provides repairs for manufacturer defects. To learn more about the warranty, please see this link: https://www.samsung.com/us/support/warranty/

Samsung provides two options for service.

1. Local service center locations: https://www.samsung.com/us/support/service/

2. Ship-in service. The ship-in service is approximately 7-14 days, including shipping times. A loaner device is not provided during this time. You can use the service locator link to create a ship-in service ticket or contact customer service at 1-800-726-7864.

For assistance outside the U.S., please use this link: https://www.samsung.com/us/common/visitlocationsite.html