The device is good .but if u want to change its ROM u did not get from any trusted site.and also u face problems on rooting this device and customizing ur device.so my opinion is not to buy this one. Guys I already faced this problems so I told u. Plz chose another one. Think u.Plz type on ur redmi prime*#*#4636#*#* n u will get phone information 1, phone information 2.click on ur jio 1 r 2, u will get one page just slide up u c I n bracket LTE, GSM/WCDMA click on bracket u have to select TD-SCDMA, GSM/WCDMA, LTE if not last second select n com bak, turn of radio u c there is no signal towers on ur phone, then again u turn on radio u will get signal bars u can c there hd on signal bar, come back to home screen u can do calls n enjoy.