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Firmware Lava Z1s


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Lava Z1s


OS: Android v11

CPU: 1.6 GHz, Octa Core Processor
RAM: 2 GB
Display: 5 inches, 1600 x 720 pixels
Camera: 5 MP
Battery: 3100 mAh


Before flashing, you need
Create a full backup of the firmware.
The battery must be 100% charged.

1. Flashing your phone using CWM Recovery
2. Flashing the phone using TWRP Recovery
3. Flashing the phone using Fastboot

1. Phone flashing using CWM Recovery
The rich functionality of CWM Recovery www.clockworkmod.com allows you to perform many manipulations with the device, including rolling the firmware. By default, stock Recovery is installed in the devices, which means that first you need to install the ClockWorkMod Recovery utility itself.
The general firmware process described below is for ZIP files. Instructions: - Download the firmware and place it on your phone's SD card.
- Next, turn off your phone.
- Depending on the phone manufacturer, press a specific combination of buttons on the phone body. If you don't know the combination you want, try pressing the following keys.
- Press the buttons: Volume up (or Volume Down) (+Home) + Power together for a while.
- As a result, the smartphone will boot in Recovery mode (engineering recovery menu).
- Use the volume buttons to navigate the menu, and use the Power button to select.
- From the Recovery mode menu select 'Wipe data / factory reset'.
- Use the volume buttons to select 'Yes - delete all user data'.
- Next in the menu, select 'Wipe cashe partition'.
- Use the volume buttons to select 'Yes - Wipe cache' .
- Then select 'advanced' from the menu.
- Use the volume buttons to select 'Wipe Dalvik Cache'.
- Next in the menu, select 'Yes - Wipe Dalvik Cache'.
Go back, press 'Go Back'.
- Then select 'mounts and storage' from the menu.
- From the menu select 'format / system' .
- Next in the menu, select 'Yes - Format' .
Go back, press 'Go Back'.
- Highlight 'install zip from sdcard' .
- From the menu choose 'choose zip from sdcard' .
- Next in the menu, select 'Yes - Install your firmware name' .
- Select 'Reboot system now' with the volume buttons and press the Power button.

2. Flashing the phone using TWRP Recovery
For those who prefer working with the utility in the form of TWRP Recovery, the following instructions for the step-by-step installation of the update in the form of a ZIP archive are offered:
- Upload the file with the firmware image to the SD card of your phone.
- Go to TWRP Recovery. In the same way as in CWM.
- Perform a factory reset by tapping the 'Wipe' option in the main menu. When finished cleaning the phone, return to the original menu by pressing the 'Back' key.
- In the main menu, select 'Install' and find the previously downloaded firmware image. Click on it by dragging the slider to the side.
- The flashing process will take about 2-3 minutes.
- Upon completion, the utility will automatically display a message about successful flashing. By clicking on the item 'Reboot System', reboot the device.

3. Flashing the phone using Fastboot
A universal tool for flashing Android smartphones using a PC is the Fastboot utility. It is part of the SDK Platform Tools, which means it is suitable for a large number of devices.
Before starting the firmware, you need to get access to the system kernel. Very often, many manufacturers block this system parameter, not wanting users to change the system files of their firmware images with their own hands. To do this, you need to unblock Bootloader. To do this, you need to study the detailed instructions for configuring and managing the command line. Before starting the firmware using a computer, do not forget to enable USB debugging of the device in the engineering settings of the device.
- Copy the .zip archive with the image, and place it in the folder with 'ADB'
- Put your device into fastboot mode and write a prompt in the command line: fastbooflash zip filename.zip.
- Wait for the end of the installation and reboot the device.



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