VFD 820 - Uncategorized ZTE - Free user manual and instructions

Product Type	Smartphone
Brand	ZTE
Model	VFD 820
Operating System	Android 8.1 Oreo
Display	5.5 inches HD (1280 x 720 pixels)
Processor	Quad-core 1.3 GHz
RAM	2 GB
Internal Storage	16 GB (expandable up to 128 GB via microSD)
Rear Camera	8 MP with autofocus
Front Camera	5 MP
Battery	3000 mAh Li-ion (removable)
Dimensions	150 x 70 x 8.5 mm
Weight	150 g
Connectivity	4G LTE, Wi-Fi 802.11 b/g/n, Bluetooth 4.2
SIM	Dual SIM (Micro-SIM, dual standby)
Sensors	Accelerometer, proximity, light
Security	Fingerprint sensor (rear-mounted)
Color	Black
Headphone Jack	3.5 mm
USB	Micro USB 2.0

Frequently Asked Questions - VFD 820 ZTE

How to perform a factory reset on ZTE VFD 820?

Go to Settings > Backup & reset > Factory data reset. Tap Reset phone and confirm. This will erase all data, so backup first.

Does ZTE VFD 820 support 4G LTE?

Yes, it supports 4G LTE for fast internet connectivity. Ensure you have a compatible SIM and proper network coverage.

How to expand storage on ZTE VFD 820?

Insert a microSD card into the dedicated slot. The device supports up to 128 GB additional storage. You can move apps and files to the SD card via Settings > Storage.

How to replace the battery on ZTE VFD 820?

The battery is removable. Power off the device, remove the back cover, and lift out the battery. Insert a new compatible battery and replace the cover.

What to do if ZTE VFD 820 won't turn on?

Try a forced restart by pressing and holding the Power button for 10-15 seconds. If it doesn't respond, charge for at least 30 minutes and try again. If still off, contact support.

How to update Android version on ZTE VFD 820?

Go to Settings > About phone > System updates and check for updates. If available, download and install. Ensure a stable Wi-Fi connection and sufficient battery.

How to take a screenshot on ZTE VFD 820?

Press and hold the Power and Volume Down buttons simultaneously for 2 seconds. The screenshot will be saved in the Gallery.

Is the screen replaceable on ZTE VFD 820?

Yes, the screen can be replaced, but it requires careful disassembly. It's recommended to seek professional repair or use a service center to avoid damage.

How to clean the device?

Use a soft, dry cloth to wipe the exterior. Avoid liquid cleaners. For the screen, use a microfiber cloth. Do not use abrasive materials or solvents.

Does ZTE VFD 820 have a fingerprint sensor?

Yes, it has a rear-mounted fingerprint sensor. To set it up, go to Settings > Security > Fingerprint and follow the prompts.

USER MANUAL VFD 820 ZTE

VFD 820(Vodafone Smart X9) Upgrade Guide (Through an SD Card)

1. Cautions

The software version and pictures in this document are just for reference only. Please use ZTE handset support website provided version to download software.

1) Download the upgrade package.

- Open http://www.ztedevice.com.cn/support and download the upgrade package (update.zip) that matches your phone model. If the downloaded package is not update.zip, unzip the package to obtain update.zip.

- Ensure that your micro SD card is at least 3GB.

Note: Please refer to our current version download size.

2) Remove the SIM card, then back up the data and APPs in your phone before the upgrade.

3) Perform data backup.

Note: You should not remove the SD card during the backup process. To avoid data lost, it is not recommended to cancel the backup process.

4) Verify that the update.zip file in the root directory of the SD card matches the model of the phone. Do not modify the file name and extension name of the files in the upgrade package.

5) Verify that your phone has enough (at least 40%) power. Charge the phone if required. To avoid data lost or upgrade failure, it is not recommended to upgrade your phone through an SD card when the phone is being charged.

6) You should not perform any other operation on the phone during the upgrade process.

7) A normal upgrade should be completed in 5 minutes. If the phone does not reboot or show any response in 5 minutes, you should perform the upgrade process again. If the phone cannot be started, perform a forced upgrade. If the forced upgrade does not work, you should contact an after-sale service

agent for support

2. Upgrade Description

There are two upgrade methods: normal upgrade and forced upgrade. If the phone cannot be started properly, for example, the phone cannot be started, or the phone does not enter standby state, perform a forced upgrade.

If the phone can be started properly and the Settings menu can be selected, perform a normal upgrade.

3. Upgrade Steps

A. Normal upgrade (the primary upgrade method)

1) Download the upgrade package that matches the phone model from ZTE official website (http://www.ztedevice.com.cn/support/), extract update.zip from the package, and copy update.zip to the root directory of the SD card (the file name must be update.zip).

2) Select File Manager>SD Card, verify that the update.zip file in the root directory of the SD card is proper, see Figure 3-1:

Figure 3-1

3) Tap and select Settings > Software Updates, see Figure 3-2.

Figure 3-2

4) Tap and select Settings, then touch SD card update, see Figure 3-3.

Figure 3-3

5) Click Install package:update.zip. Then touch Install. See Figure 3-4

Figure 3-4

6) Click OK to restart the phone and start the upgrade. See Figure 3-5

Figure 3-5

B. Forced upgrade (for the phones that cannot be started or the phones that cannot enter standby state)

1) For a powered-off phone, Press and hold the volume up key and power key until the phone enters Android recovery. In this mode, the volume key can be used to select a menu, the power key can be used to confirm it.
2) Press the Volume down key to select Apply update from SD card, and press the power key to confirm it. The root directory of the SD card is opened.
3) Press the Volume down key to select the update.zip file, and press the power key to confirm it. The phone starts the upgrade process.
4) The phone completes the upgrade process in about 5 minutes. the screen will be displayed: Install from SD card complete, select reboot system now and press the power key to confirm it.

1. (Optional) Restoring the Data

If you have backed up data before upgrading your phone, restore the data. Do not remove the SD card during the restoration process. To avoid data lost, it is not recommended to cancel the restoration process.