The ZTE Axon M features the slightly outdated Snapdragon 821 processor, but it is the only handset to feature a dual display folding design with four operating modes nowadays. Sadly, it will only hit the market via AT&T next month.
https://www.notebookcheck.net/Foldable-ZTE-Axon-M-smartphone-now-official.258506.0.html
i have visited several sites to get code to unlock my AT&T ZTE AXON M Z999 but i found that this site http://attunlockportal.com/product/att-zte-axon-m-z999-unlock-code/ is appropriate for unlocking phones and since then i don't have any issues with it.