Dell Venue 3840 Quick Start Guide

To perform a factory reset, go to Settings > Backup & reset > Factory data reset. Confirm by tapping 'Reset tablet' and then 'Erase everything'. Ensure data backup before proceeding.
First, ensure the tablet is charged by connecting it to a power source. If it still doesn't turn on, perform a hard reset by pressing and holding the power button for 10 seconds.
Reduce screen brightness, close unused apps, turn off Wi-Fi/Bluetooth when not in use, and enable battery saver mode in the settings.
Go to Settings > About tablet > System updates. If an update is available, follow the on-screen instructions to download and install it.
Swipe down from the top of the screen, tap on the Wi-Fi icon, select your network, and enter the password if required.
Restart the device, ensure the screen is clean, and remove any screen protectors. If the issue persists, perform a factory reset or contact support.
Yes, you can expand the storage by inserting a compatible microSD card into the card slot on the side of the tablet.
Connect the tablet to the computer using a USB cable. Select 'File Transfer' mode on the tablet and access the device storage on your computer.
Close unnecessary apps, clear cache data in Settings > Storage, and ensure the device software is up to date. Consider a factory reset if the problem persists.
Press and hold the power button and the volume down button simultaneously until you hear a shutter sound or see a flash on the screen.