hi freinds my telling you a one of the best way to
convert 3G mobile into 4G
|convert 3G mobile into 4G - onlinebap.blogspot.in|
im interested to buy JIO sim for my mobile but my mobile is 3G so jio is is not availabale for my mobile so im converted my 3G mobile into 4G without any accese of ROOT.
so im telling you this step as follows
2. open application.
3. search DEVELOPER menu.
4. convert 3G to 4G click on it.
5. switch off mobilw and start it.
6. now check your mobile data setting and check 4G network.