How to use 4g jio sim in 3g mobile(Tamil and English) HD
How to use 4g jio sim in 3g smartphone..firth to dial *#*#4636#*#* and next click to phone information and next click LTD/WCDMA(PRL) or (LTD/WCDMA/GSM(PRL)........AND GET NET IN YOUR MOBILE......enjoy
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