Flash firmware on ZTE U808
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How to flash ZTE U808?
Why reinstall the firmware?
Errors begin to appear in the Android operating system.
Some installed applications do not open.
Some programs from the Play Market do not start.
The phone restarts or shuts down for no reason.
The phone slows down a lot during operation.
You are not satisfied with the functionality of the stock firmware.
Where can I find the firmware?
On the official website of your phone manufacturer.
On specialized resources where users post custom or official OS.
What should be done before installing the firmware?
Create a backup copy of user data and transfer it to another medium.
Insert an SD card into the gadget. It must have enough memory for the firmware.
Find out the exact model of your smartphone.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Find and download the archive with Firmware. Place it on the SD card.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. Download, install and launch the application..
At the first start, you need to give consent to future manipulations, as well as consent to granting the Superuser rights to the application. Check the checkboxes and press the 'OK' button.
After moving to the next screen, you need to select the 'TWRP FLASH' item and give the application root rights.
On the main screen of the application, the 'Select Device' drop-down list is available, in which you need to find and select the device model for installing the recovery.
After selecting a device, the application will direct the user to a web page to download the appropriate modified recovery environment image file. Download the suggested *.img file.
After downloading the image file, go to the main screen of the Official TWRP App and press the 'Select a file to flash' button. Select the file downloaded in the previous step.
Press the 'FLASH TO RECOVERY' button and confirm that you are ready to start the procedure - press 'OK' in the question window.
The recording process is very fast, and upon completion, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.
Copy the required files to the SD card. Using a PC or laptop card reader, it will be much faster.
Insert a memory card into the device.
To reboot in recovery, it is convenient to use a special item in the Official TWRP App menu, accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. We open the menu, select the 'Reboot' item, and then tap on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically.
Firmware via TWRP
Before flashing, it is recommended to clear the 'Cache' and 'Data' sections. This will delete all user data from the device, but avoid a wide range of software errors and other problems. You must press 'WIPE' on the main screen.
Everything is ready to start flashing. Press the 'Install' button.
On the file selection screen, at the very top there is a 'Storage' button for selecting an SD card.
Select the location where you copied the files..
Find the file we need and click on it. A screen opens with a warning about possible negative consequences, as well as the item 'Zip signature verification'. This item should be checked by placing a cross in the check-box, which will avoid using damaged files when writing to the phone's memory sections.
The procedure for writing files to the phone's memory will begin, accompanied by logging and filling in the progress bar.
The completion of the installation procedure is indicated by the inscription 'Successful'.
Summary: Design: Bar; SIM Quantity: Dual SIM; SIM Types: Standard SIM Card; CPU: Spreadtrum 8825A; Processor: Dual Core, 1.0GHz; Operating System: Android 4.0; RAM: 512MB; ROM: 4GB; External memory: 32GB (not include); Sensor: G-sensor, Light sensor, Gyroscope, compass, CMOS; Support Language: English, Simple Chinese, Traditional Chinese; Screen Size: 4.0 inch; Screen Type: TFT; Resolution: 800 x 480 pixels; Camera Quantity: Single; Back Camera: 2.0MP; Video recording: Yes; Audio: MP3; Picture: JPG, JPEG; E-book: TXT; Ports: 2 x SIM card slots, 1 x TF card slot, 1 x Micro USB, 1 x 3.5mm Earphone port; Battery Types: Detachable; Battery Capacity: 1650mAh; ...
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