If help is needed here is a Troubleshooting guide you can check out.
Background and Identification
This BLU Studio 5.5 is a D610a model that features: two unique SIM card slots, a 5.5” touch screen, 5.0 MP back facing, auto focusing, camera with an LED flash, and a VGA (.3 MP) front facing camera. It has a sleek front design and a curved back cover available in five different colors: black, white, yellow, blue, and pink.
To distinguish from similar models such as the BLU Studio 5.0 or 5.5 HD, take a look and you will notice that the BLU logo is not on the front of the device - a common feature in other models. Similarly, the locations of the front camera , being at the left uppermost corner of the screen, and the main buttons, at the very bottom edge of the screen are also unique to this model.
The device was released October 1, 2013 with a starting price of $179.99.
Body: 157 x 79.5 x 9.5 mm (6.18 x 3.13 x 0.37 in)
Screen: 480 x 854 pixels, 5.5 inches
Weight: 184 grams
Camera: 5 MP Rear / VGA (.3 MP) Front, 30 FPS video
Battery: 2250 mAh, Li-Ion
USB: Micro, 2.0
Storage: 4 GB
RAM: 2 GB
OS: Android 4.2 Jelly Bean