I have to be root to run Blackmart Alpha?
To use the application you do not need the root but for normal operation it is advisable to always have the latest version of Android.
Why in some cases the download is slow?
Unfortunately this is a known problem, the servers are overloaded with users, in some cases, just close and reopen the application.
Why some applications are downloaded but not installed?
In the Blackmart Alpha market also has some applications that are not compatible with your Android, in this market are all applications for each type of smartphone or tablet Android.