Hello, good morning to the mobile forum. There is no sub forum of the Noblex Joy N501 brand so I post here. Already run out of memory. I never put an SD. Well, now buy one, place it and recognize it. I want to know the steps, to format it, if it is necessary to do it, and how to pass the folders of images / videos and several that occupy 8gb to the SD. I have activated since I bought the option of Development Options and within it only the USB Debugging and Verify applications by USB are activated. I am from Argentina, maybe out of here this brand and model is not known. I do electronic, but I'm neophyte on cell phones. Thank you all.