deleted android system on rooted blu studio x

i rooted my blu studio x , thought i had backed up apps an info to sd card, which i didnt an deleted android system by accident. An all Google's apps began to fail an shut down Now my phone is stuck on black screen, i can turn it off an back on but it just shows the Blu logo an then goes black screen. How do i get the Android System back on Blu studio x without a computer (if possible) if not still need help.