How does Vivoy27 Unicom 2g replace 4g

Vivoy27 is a mobile 4G mobile phone, which supports mobile 4G(TD-LTE), mobile 3G(TD-SCDMA) and Unicom 2G/ mobile 2G(GSM), but does not support using Unicom's 4G network. If you want to upgrade your Unicom 2G package to meet the requirements, you can directly log in to the homepage of Unicom's online business hall, click self-service > business > package handling, select the required 4G package, and then click "change" for self-handling. The resources in Unicom's 4G package can be automatically switched under the 2G/3G/4G network, so if the mobile phone only supports the 2G/3G network, it can also be used normally.

Note: From 0: 00 on the last day of each month to 8: 00 on the following month 1 day, old users of 2G3G cannot apply for 4G packages temporarily.