The 3G standard (short for a 3rd generation) is newer generation of wireless technology. in terms of speed and functionality, 3G is much better than preceding 2G networks, that because vivo V21 3G devices give higher speed bandwidth.
Does vivo V21 have 3G Function?
Please note that 3G network is built-in on vivo V21.
Turn ON 3G on vivo V21
To turn On/Off 3G on vivo V21 apply this procedure:
1) Go to Settings
2) Choose Network & internet
3) Hit SIM card & mobile network
4) Select SIM 1 or SIM 2
5) Select Mobile networks
6) Tap your preferred option.
Main Ways to Identify If vivo V21 3G
Actually, there are several manners to tell if 3G function is working on vivo V21 or not. However, these two most popular ways are working on both iOS and Android operating systems:
Way-1
On the top of your vivo V21 screen there will be a small icon refers to 3G.
Way-2
Follow these steps to identify if your vivo V21 is 3G:
1) Dial *#06# on your mobile to know vivo V21 IMEI number.
2) Explore www.imei.info, type your IMEI number and choose Check.
3) You’ll get a report. Look at the LTE section – it will show all the frequencies that are supported by your phone. 3G service works on the 2100MHz frequency, so if you see the number 2100, then your vivo V21 is 3G compatible.
Please note that you can always check the phone’s user guide.
Note: LTE Option on mobile setting commonly refers to 4G connections.
vivo V21 3G – More Info
Understanding LTE:
Long-Term Evolution (LTE) is a standard for wireless broadband communication used for handhelds devices and data terminals. LTE frequencies are:
3G connections: 900 MHz and 2100 MHz (band 1 and 39).
4G connections: 800 MHz (band 20), 1800 MHz and 2600 MHz (band 7 and 38).
5G connections: 700 MHz (band 28) and 3500 MHz (band 78).
Note: LTE Option in mobiles settings generally refers to 4G connections.
Understanding MHz:
MHz (Megahertz) is a unit of frequency equal to one million cycles per second. It is used to measure the transmission speed of electronic devices, including handheld phone communications.
What is Band?
The band is an interval in the frequency domain, delimited by a lower and upper values of transmission capacity over network communication systems. However, in general we are using bandwidth term to refer to the capacity of a network.