The phones of the Chinese company ZTE are very attractive for their low price, available to absolutely everyone. They have quite good technical characteristics and high quality, so it is not surprising that smartphones from this manufacturer are very popular in the market.
However, no matter how good these devices are, their owners usually have to reflash their mobile device sooner or later. The standard Chinese firmware of the ZTE phone raises a lot of complaints, and over time it starts to glitch and slow down.
The main thing to know in such a situation is that reflashing ZTE gadgets is not at all difficult and costs absolutely nothing. To do this, it is enough to spend half an hour of your time and download just a few programs. We will tell you how the firmware on the ZTE v815w works in a detailed guide.
Before flashing, make sure your phone is at least 50% charged, and also back up all data on it.
Algorithm of actions
First of all, you need to download the firmware for the ZTE v815w on the official website. Our instructions are only suitable for installing official firmware. To install custom firmware, you first need to install custom recovery - we will consider this issue in other articles.
Now let's figure out how to flash a phone. We do the following:
- Download the firmware downloaded above (update.zip file) to the SD card;
- If the phone works, we try to update through the menu item Settings - Update - Update using memory card.
- If the smartphone does not turn on, we enter Recovery Mode: to do this, when you turn on the phone, you need to hold down the volume + button;
- Press the volume down key to select “apply update from SDcard”. To enter it, press the volume +;
- Select the previously downloaded firmware file update.zip.
- Press the power key to start. We make the installation. The system will ask you if you are ready to delete all data from your smartphone (this is inevitable when changing firmware). We agree and wait.
- After a couple of minutes, the process will complete successfully. You will return to the service menu, from which you can exit with the power button. You can turn on the phone and carry out its initial setup.
The phone will turn on for the first time in a few minutes. Don't worry: when you change software, the system always takes longer to boot. In the future, the smartphone will load and reboot faster - as usual. If the installed software suits you and the phone works better after reinstalling it than before, then congratulations - you yourself solved the problem and installed a new firmware on the gadget.
To begin with, Zte is the second largest telephone product company in 2011. The lines of smartphones from this manufacturer are distinguished by a good price-quality ratio.
The Zte v815w smartphone was released in September 2014, but the phone is still relevant due to the powerful processor for such models. The processor frequency is 1000 MHz, the RAM is 512 MB, the screen diagonal is 4 inches. The phone is especially suitable for those who are tired of modern fashionable "paws".
The manufacturer maintains the phone, releases updates as long as it sells well, after which we will have to update the device ourselves. It is true that you should install an alternative firmware only in that situation if the problems with the phone cannot be solved otherwise.
What do you need to flash Zte v815w to android 5.1?
1.First, it's worth downloading drivers for your phone. If you are downloading an archive, then extract the contents to any folder, let's say on your desktop.
2. We connect a PC and a smartphone using a USB cable.
3. We go to the Device Manager.
4. In the "other devices" folder, select your phone.
5.Click on the name of the phone with the right mouse button and select "update drivers"
6.Select to install drivers manually, in the field that opens, specify the path to our folder into which the drivers were unpacked.
Next, you need to install the SP FlashTool program and download the firmware image for our smartphone to any folder on your PC.
The next step is to disconnect the phone from the computer, launch Flashtool and click on "Scatter-loading"
You should select a file from the archive with firmware"MT6572_Android_scatter.txt".
Then mark all items except PRELOADER, СACHE, USRDATA.
Then click Download, reinstall the mobile battery, and then connect the phone to the computer.
A “Download OK” message will appear, which means you can unplug the USB cable and restart your smartphone.
How do I update the software?
We provide you with different ways to update the software, namely: update using a memory card or update "over the air".
To update "over the air", you need to connect to a wireless Wi-Fi network or GSM Internet connection and check for updates in the settings.
What should I do if the operating time of the device does not coincide with the operating time declared by the manufacturer?
A smartphone is a complex electronic device that includes the functions of a pocket computer and a cell phone, and consumes a large amount of energy to operate these functions. The main amount of energy is spent on the operation of the display module and the GSM transmit-receive path. The brightness of the display is automatically set to maximum in very bright environments (sunny day) or manually set by the user. Maximum brightness consumes maximum power. During GSM operation and stable and stable reception "at maximums", the device consumes a minimum amount of energy to maintain communication. In case of an unstable and weak network signal, the machine needs more power to maintain communication. In the case of "Search Network" in an area with no network, the device consumes the maximum amount of energy, which is spent on searching for the nearest base stations. To reduce the energy consumed by the phone, you need:
1. Disable GPS if not required.
2. Disable mobile internet if not needed.
3. Disable or remove unnecessary unused applications. they are active and consume the internal resources of the apparatus.
What should you do if the phone freezes, does not turn on or reboots?
Most of the time, third-party software or programs are responsible for restarting or freezing.
1. Initially, we recommend that you restore the default factory settings (after saving the information you need). If the phone turns on, select the "factory reset" option in the device menu. If the device does not turn on, turn on the device in "Recovery mode" and select "wipe data / factory reset". The way to enable "Recovery mode" is described below in the paragraph "How to enter Recovery mode?".
2. If a factory reset does not help, update the software. The ways to update the software are described in the section "How to update the software?".
3. If the software update does not help, please contact your nearest ZTE Authorized Service Center.
How do I back up my data, notebook or Back-up?
There are 3 ways to back up:
1. In the phone settings in the "Restore and reset" submenu, check the box for restore.
2. You can transfer the necessary information to your computer using a USB cable.
3. You can back up using a third party program.
What if I forgot my password or pattern to unlock the screen?
If you have forgotten your pattern or digital password to unlock the screen, you need to perform a reset to factory settings: 1. Turn on the device in "Recovery mode" and select "wipe data / factory reset". 2. If the procedure is not followed, it is required to contact a ZTE Authorized Service Center.
How to use wireless networks (Wi-Fi, BT)?
1. Turn on Wi-Fi in the device settings. Click on the Wi-Fi icon and you will be taken to the Wi-Fi network management screen.
2. The device will automatically start searching for active Wi-Fi networks in the access zone from 5 to 50 meters to the access point (depending on the power of the access point).
3. Select the network you need and click on it. If your wireless network is protected by a password, enter it.
4. After connecting to the desired network, the Wi-Fi icon will appear on the main screen of the device.
How to turn on the distribution of the Internet on the phone (USB modem or WiFi router)?
There are two ways to enable tethering on your phone. The first way is to enable sharing as a USB modem, the other is to enable sharing as a WiFi router. Make sure that your device has access to the Internet in order to distribute it:
1. USB modem - the method is used to distribute the Internet to a computer. Connect your phone to your computer using a USB cable and allow data access. "Settings-> Wireless networks-> More" Modem mode - check the USB-modem checkbox. "Then the phone will start distributing the Internet to the computer. To stop the distribution, uncheck the USB-modem or simply disconnect the cable connection.
2. WiFi router - make sure you have a stable internet connection via a mobile network or USB. "Settings-> Wireless networks-> More" Modem mode - check the "WiFI access point" checkbox. To secure your wireless connection, tap the hotspot icon then tap WiFi hotspot. In this menu, you can set a name and password for your wireless WiFi connection. Your phone will start working as a WiFi router. To stop distribution, uncheck "WiFi router"
How can I quickly see the charging status?
Press the power button while charging. The battery charge status will be shown on the main screen of the phone.
Why is the volume of free memory of the device less than stated by the manufacturer?
Unlike a processor, which has its own built-in memory, other devices, such as a video processor, an audio processor, and other devices included in the element base of the device's central board consume user memory resources. A certain amount of memory is reserved in advance for internal needs, but in case of an overflow, the user memory is used.
What types of device lock can I use?
There are 3 types of screen lock. Select one of the lock types in Settings -> Security -> Screen lock.
1. Locking with a pattern
2.Pin-code lock 3.Password lock
What is the operating temperature of ZTE phones?
The operating temperature ranges from (-10C) to (+ 50C).
What does ROOT mean?
ROOT is "administrator rights". ROOT allows you to modify system files, change the system, install test programs and perform other actions. ROOT rights are hidden from users, but can be activated if necessary.
Be careful, careless handling of ROOT rights can harm your operating system.
How to enter Recovery mode?
In the off state, simultaneously hold down the volume button (increase +) and the power button.
What if the battery is not 100% charged?
The battery of the device is designed in such a way that it dissipates part of the charge received and can subsequently be recharged. This feature is designed to protect the battery and increase its performance. If the battery does not charge more than 80%, contact an Authorized ZTE Service Center.
How can I add a Google account to the device?
1. When you turn on the smartphone for the first time, you will be prompted to register a new Google account or use an existing one. But this is not a mandatory procedure.
2. To add an account at any time you can register a new or use an existing account: Settings-> Accounts and "add account".
How do I enable USB debugging? How do I get access to the Developers menu?
Enter "Settings-> About phone-> Click on" Build number "several times. Then you will have access to the" For developers "submenu. In this submenu" USB debugging "and other functions for developers are available
How do I connect my phone to a PC?
Follow the steps below to install the driver (automatically).
1. Connect your phone to your computer.
2. When connected, select "Virtual Disk" or "Virtual CD" depending on the model.
3. An additional disk should be detected in the computer, run "Autorun.exe" on it and install the driver
4. If the drivers are not installed, go to "Settings-> For Developers" and enable the "Disk driver". (10 times click on "Build version"
5. When you enable (USB Debugging), the driver will also be automatically installed.
What do the letters E, G, H mean?
When the phone's data transfer is active, the following symbols appear on the status bar (indication of signal reception, battery capacity, etc.):
- E means active work of the EDGE protocol
- G means active work of the GPRS protocol
- H means the active work of the HSDPA protocol, which is part of WCDMA
Official firmware Android 4.4 [stock ROM file] -
ZTE custom firmware -
If custom or official firmware on ZTE has not yet been added here, then create a topic on the forum, in the section, our specialists will promptly and free of charge help, incl. with backup and manuals. Just do not forget to write a review about your smartphone - this is extremely important. This page will also show the firmware for the ZTE V815W. Please note that this ZTE model requires an individual ROM file, so you should not try firmware files from other devices.
What custom firmware are there?
- CM - CyanogenMod
- LineageOS
- Paranoid Android
- OmniROM
- Temasek's
- AICP (Android Ice Cold Project)
- RR (Resurrection Remix)
- MK (MoKee)
- FlymeOS
- Bliss
- crDroid
- Illusion ROMS
- Pacman ROM
Problems and disadvantages of a smartphone from ZTE and how to fix them?
- If the V815W does not turn on, for example, you see a white screen, hangs on the splash screen, or the notification indicator only blinks (possibly after charging).
- If it freezes when updating / freezes when it is turned on (needs a flashing, 100%)
- Doesn't charge (usually iron problems)
- Doesn't see the SIM card (SIM card)
- The camera does not work (mostly hardware problems)
- Sensor does not work (depending on the situation)
Hard Reset for ZTE V815W
Instructions on how to Hard Reset on ZTE V815W (factory reset). We recommend that you read the visual guide, which is called on Android. ... 
Reset codes (open the dialer and enter them).
- *2767*3855#
- *#*#7780#*#*
- *#*#7378423#*#*
Hard Reset via Recovery
- Turn off the device-> go to Recovery
- "Wipe data / factory reset"
- "Yes - delete all user data" -> "Reboot System"
How do I log into Recovery?
- hold down Vol (-) [volume down], or Vol (+) [volume up] and the power button
- a menu with the Android logo will appear. Everything, you are in Recovery!
Factory reset on ZTE V815W can be done in a very simple way:
- Settings-> Recovery and reset
- Reset settings (at the very bottom)
How to reset your pattern
How to reset your pattern if you have forgotten it and now you cannot unlock your ZTE smartphone. On the V815W model, the key or PIN can be removed in several ways. You can also remove the lock through a factory reset, the lock code will be deleted and disabled.
- Reset graph. blocking -
- Password reset -
