Thanks to the launch of Reliance Jio 4G SIM, 4G data services are now available at lower prices comparatively, in fact, free for Jio users until December 31.
But, what about those who don't have a 4G capable phone? Can't they avail these services? Well, there's one thing you can do to make your phone 4G capable.
Open your phone's dialer and start typing this code *#*#4636#*#
On running the above code you'll land into a testing screen where you'll see four options phone information, battery information, usage statistics, and Wi-Fi information.
Click on ‘phone information.'
Scroll down until you see ‘set preferred network type.'
From the preferred network type, select LTE/GSM/CDMA auto (PRL)
Now, scroll down and hit the update button.