I used this phone last one and half year
there are problem of any thinh like hangg and heating its just working as its work when I purchase it
I give you some basis detail about that phone Samsung Galaxy Core Prime 4G smartphone was launched in February 2015. . The Samsung Galaxy Core Prime 4G is powered by 1.2GHz quad-core it comes with 1GB of RAM. . The Samsung Galaxy Core Prime 4G is a dual SIM(GSM and GSM) smartphone that accepts Micro-SIM and Micro-SIM.
if you want to buy a phone in rang of under 10000 I personally suggest you to buy this one