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Flash firmware on ZTE Cymbal-T

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How to flash ZTE Cymbal-T?


Why reinstall the firmware?

Errors in the operation of the Android OS begin to appear.

Some installed applications do not open.

Many programs from the Play Market do not start.

The phone turns off for no apparent reason.

The phone slows down a lot during operation.

You want to update your firmware.





Where can I find the firmware?

On the official website of your phone manufacturer.

On specialized services on which developers lay out custom or official OS.


What should be done before installing the firmware?

Back up your contacts and user data and transfer it to your computer.

Insert your SD card into your phone. It must have enough memory to fit the firmware.

Remember your smartphone model.

Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.

Download the archive with Firmware and place it on the SD card.





Installing TWRP Recovery

Install the Official TWRP App via the Play Market. And run this 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.

TWRP

On the main screen of the application, select 'Select Device', and find your phone model.

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.

When the file is loaded, return 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.

Now press the 'FLASH TO RECOVERY' button and confirm your choice, press 'OK'.

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.

Write the firmware and other necessary 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 into recovery, you need 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 click on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically.





Firmware via TWRP

TWRP

Before flashing, you need to clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. This will delete all user data from the device, but avoid a wide range of software errors and other problems.

Now you can start flashing. Press the 'Install' button.


TWRP

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. Press the 'OK' button.



TWRP

Select the firmware file and click on it. A screen opens with a warning about possible negative consequences, you need to check the item 'Zip signature verification', which will avoid using damaged files during recording.

The procedure for writing files to the device's memory will begin, accompanied by the appearance of inscriptions in the log field and the completion of the progress bar.

The completion of the firmware installation procedure is indicated by the inscription 'Successful'.





Summary: GSM frequencies: 850 900 1800 1900; Standard UMTS: 850 1700 1900; Standard LTE: FDD LTE: 1900, 1700, 850, 700; Standard CDMA: 2000 1xEV-DO; Type: Clamshell; Dimensions (W x H x D): 119.90 x 61.00 x 18.30 mm; Weight: 165.00 g; Main display: Color / TFT320 x 480 px (3.50") 165 ppi; Display protection: no; Addidtional display: Mono / LCD128 x 64 px (0.00"); Protection of the secondary display: no; Talk time (max.): 3G: 600 min. (10.0 h); Stand-by (max.): 3G: 144 h (6.0 days); Standard battery: Li-Ion 1800 mAh; Quick battery charging: no; Internal memory: 8 GB; RAM memory: 1 GB; Memory cards: yes, microSD, microSDHC (up to 32 GB); Operating system: Android 5 ...

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