Thank you for contacting ZTE.
Our ZTE BLADE can support android 2.2 in hardware, but we haven’t released android 2.2 version for end-user until now.
End-users are advised not to upgrade their phone versions until the software is released formally.
Other upgrade information we recommend you contact your local operator to get some information.
Because we need upgrade android system by the operator's demands.
But i don't undestand, why not to upgrade if hardware support??