Does Samsung j7 pro supports fast charging and vr headset?

Yes,  USB-OTG Connectivity is supported and you can connect your USB Drive to it.Before you connect the drive using OTG cable, you need to enable OTG support on the device.To enable OTG :Open Settings-> Additional Settings-> OTG connection. Here you need to enable the option.Top 10 uses of OTG that will amaze you:You can find complete specifications here: Xiaomi Redmi K20

No, there are no declarations of any IP certification to protect your phone against water damage.What to do if you accidentally dropped your phone in water:You can see detailed product specifications here: Xiaomi Redmi K20

Yes, 4G VoLTE support in obviously there. You will surely experience enhanced voice quality and faster internet browsing and download speed. You can also use its native video calling feature for video calls.VOLTE Explanation:You can find complete specifications here: Xiaomi Redmi K20

No, fast charging is not supported by your device. However, some software level modifications might have been done for quick charging.A short video to manage your battery:You can find complete specifications here: Xiaomi Redmi K20

Xiaomi Redmi K20 has a gyroscope sensor and supports Virtual Reality (VR). With VR you can play 360-degree simulation games, go on a roller coaster rides and watch amazing content that looks like real thing just in front of you. Following are some best VR Games:You can find complete specifications here: Xiaomi Redmi K20

Your device have a non-removable battery and for any assistance related to removing/replacing the battery, you need to visit service center. You can find a service center near you from here.Below video shows How to change non-removable battery:You can look at complete specifications here: Xiaomi Redmi K20

Yes, your device does support 4K video recording.You can see detailed specs here: Xiaomi Redmi K20

Internal memory available in your device is 64 GB. Since it operates on Android 9.0 OS, a significant amount (around 8 GB) is required by the OS and file system . Hence, around 56 GB of internal memory is available for the user to install apps.You can see detailed specs here: Xiaomi Redmi K20

Yes, your device supports VoLTE in both the SIM slots. Since VoLTE works on bands 3,5 and 40 and both the SIM slots supports band 3 and 40. You can use two Jio SIMs at a time.You can go to this link for complete specs: Xiaomi Redmi K20

The device runs on Android 9.0 and supports all OS-specific gestures controls which have been customized and designed to support large screen phones. There are a lot of gesture control including:Navigation gesture controlsDrawing on locked ScreenThree finger Screenshot e.t.c.Long tapping on the icon to show infoSwiping left/right for closureYou can look at its video here: You can check on some Hidden features of your Android here:You can see detailed specifications here: Xiaomi Redmi K20

Phone makers have overtime eased out the way you take a screenshot. Most Popular still being Power-VolumeDown-Combo to capture the screen you are on. New ways include:Gestures to take screenshots (Three finger swipe)Dedicated Android applications (Super Screenshot/Screen Master e.t.c.)Google Assistant (You can even ask Google assistant to take a screenshot for you)Look at 3 awesome ways to take a screenshot:You can see detailed specs here: Xiaomi Redmi K20

Check the steps to insert sim:-Ensure that the device is powered off.Remove the Volume buttons/SIM tray (located on the right edge of the device).Insert the SIM card into the tray.Insert the SIM tray with the word UP facing the display side.A video for your reference:You can find complete specifications here: Xiaomi Redmi K20

To root your phone manually, you need to turn on USB Debugging. Go to Setting, Find kernel version in About.Tap it seven times, at which point you should see the message, "You are now a developer!" With that done, tap Settings, About Phone, Developer Options, and then tick USB debugging." Then tap OK to approve the setting change. Now turn it ON  in fastboot mode and unlock the bootloader.Install a recovery to help you with flashing.Flash a supporting custom ROM and gapps.XDA Developers is a great site to help you with the process, support and Custom ROMs.Check the below video for One click root method that works on many latest devices:You can find all the specs here: Xiaomi Redmi K20

You can simply reset your Android to factory settings through "Backup and Reset" feature available in settings.However, this won't work if your phone has got hanged or you have forgotten the password.Here is a Quick reference to hard reset your phone:Power off your phone (If the phone is hanged, directly perform the next step)Press and hold Volume Down and Power button to enter recovery mode. (Old phone might use home button as well)After the Android logo, you'll be presented by a menu.Select "Wipe Data/Factory reset" from the menu.Press the Power button to confirm.Scroll to "Yes" and confirm with Power button.This will start the Reset Process.You can see the video to perform hard reset here:You can see detailed specs of the phone here: Xiaomi Redmi K20

You can enable Google Assistant by long pressing the Home Button or saying "Ok Google".Google will be there to help you.To Enable "OK Google" voice Recognition you need to follow below steps:Go to the "Google" App.Select "Setting" from the bottom right.Go to "Voice" and then "Voice Match"Choose when you want Google to listen to "Ok Google" and set it up by repeating it 3 times.Make sure, Google Play Services and Google App is up to date.You can see the video on how to enable:You can see detailed specs of the phone here: Xiaomi Redmi K20