Check the steps:-
Swipe up from the bottom bezel of your Phone to bring up Control Center.
Tap the Flashlight button at the bottom left.
Point the LED flash on the back of your iPhone at whatever you want to light up.
You don't need to enable VoLTE. Insert the Jio (VoLTE enabled) in any slot. By default, VoLTE will be active. If it is not, you can change the network preferences from Network option in settings.
You can see full specs here: Oppo A83
To Transfer files from your phone to another device.
1. To transfer data from your phone to a Laptop
Use the data cable that came along with your phone. Simply plug in your device and start transferring your data to your laptop.
2. To transfer data from a phone to phone.
There are many ways you can transfer your data like Using the Shareit app(https://play.google.com/store/apps/details?id=com.lenovo.anyshare.gps&hl=en), Bluetooth etc.
Using shareit app: Just download the shareit app on both the phones and open it.then select the app, photo, video you want to transfer from the list and press "Send". It will search for the nearby device. Once the device appears tap on that your file will be transferred
You can check the complete specs of this phone:
Turn on Battery Saver
1. Go to settings.
2. Then tap on Battery option.
3. Then Tap on Battery saver option
4. Then select the percentage at which you want to trigger the battery saver in your phone and you are Done.
You can also check the video below for more description
You can check the complete specs of this phoneOppo A83 Pro
To hide or protect your apps I would suggest you use App lock.Heres how.
Now, whenever you open a locked application, you can either unlock it by simply verifying your fingerprint or by entering the unlock pattern. The fingerprints that you have registered for unlocking your device are the ones that will also work with App Lock.
Here is the video guide to do the same
There are two ways by which you can turn on Bluetooth in you phone
a. Go to settings.
b. Tap on "Bluetooth"
c. Tap the Toggle button to turn on the Bluetooth.
a. Drag down the quick settings bar from the top or bottom (depending on your phone)
b. Tap the "Bluetooth" icon to turn on/off the Bluetooth settings.
You can check more details about the phone here
Go to Settings, Personal, Backup and reset, and select both Backup my data and Automatic restore.
Go to Settings, Personal, Accounts & Sync, and select your Google account.
Select all of the option boxes listed, to ensure that all available data is synced.
To buy a phone on EMI, you must have a credit card with appropriate Credit limit.
Then you can head to any online store like Flipkart and Amazon to buy your phone on EMI.
a. Open the App or website on your phone or PC
b. Then select the phone you want to buy and press buy now.
c. Select the Address and Tap on "Continue"
d. Select the "EMI" option as the mode of payment and Click on Continue.
e. Select your bank
f. Select the EMI time period from the optionsm
g. Enter your card details and make the payment. You can check the price of Oppo A83 Pro
g. Enter your card details and make the payment.
You can check the price of Oppo A83 Pro