Dear US users,
We are aware of the recent issues that many users have encountered using the AT&T service.
This is due to the carrier's recent change of policy. Although Unihertz smartphones are all valid 4G devices, they sadly are not certified by US carriers such as AT&T, T-Mobile, Verizon, etc.
Recently, AT&T released a whitelist of smartphone brands that will continue to work on their network after February 2022. Unfortunately, Unihertz products are not among them.
If you are using Unihertz smartphones on the AT&T network, it may not work normally after February 2022. We are sorry for the inconvenience caused, though this has resulted from the carrier's policy change.
Unihertz is trying to get in contact with AT&T and is actively seeking solutions for the problem, but this will take time. So please kindly be patient with us.
Meanwhile, we suggest that you switch to other carriers, such as T-Mobile or Verizon, which are still workable.