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Flash firmware on Huawei U8687 Cronos

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How to flash Huawei U8687 Cronos?


Why reinstall the firmware?

Errors constantly appear in the Android operating system.

Some applications stop opening.

Many programs from the Play Market do not start.

The phone restarts or shuts down randomly.

The phone slows down a lot during operation.

You are not satisfied with the functionality of the stock (official) firmware.





Where can I find the firmware?

On the official Internet resource of the phone manufacturer.

On specialized services where users post custom or official OS.


What should be done before installing the firmware?

Create a backup copy of user data, contacts and photos and transfer it to your computer.

Insert an SD card into the gadget. It must have enough memory for the firmware.

Determine your smartphone model.

Charge your phone fully.

Find and download the archive with Firmware.





Installing TWRP Recovery

Download and install the Official TWRP App from the Play Market.

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, select the 'TWRP FLASH' item and provide the application with root rights.

TWRP

On the main screen of the application, click on the 'Select Device' drop-down list, and select your phone model.

After selecting the phone, the application will redirect the user to a web page to download the modified recovery environment image file. Download the proposed *.img file.

When the file is loaded, you need to 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.

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.

Copy the required files to the memory card. Using a PC or laptop card reader.

Insert a memory card into your phone.

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. Open the menu and select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button.





Firmware via TWRP

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.

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


TWRP

The file selection screen appears. At the very top is the 'Storage' button, select the location where the firmware file is located.

Select the storage to which the files were copied.



TWRP

Find the file we need 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 corrupted 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.

After completing the installation procedure, a 'Successful' message appears on the screen.





Summary: Smart Phone OS: Android OS, v4.0 (Ice Cream Sandwich); Chipset: Qualcomm MSM7225A Snapdragon S1; CPU: 1.0 GHz Cortex-A5; GPU: Adreno 200; Type: TFT capacitive touchscreen; Screen Size: 3.5 inches (~50.2% screen-to-body ratio); Resolution: 320 x 480 pixels (~165 ppi pixel density); Multitouch: Yes; Main Camera: 3.15 MP; Features: Geo-tagging; Video: Yes; Front Camera: No; Card slot: microSD, up to 32 GB (dedicated slot); Internal: 4 GB, 512 MB RAM; Alert types: Vibration; MP3, WAV ringtones; Loudspeaker: Yes; 3.5mm jack: Yes; WLAN: Wi-Fi 802.11 b/g/n, hotspot; Bluetooth: v3.0, A2DP; GPS: Yes, with A-GPS; Radio: FM radio; USB: microUSB v2.0; Sensors: Accelerometer, pr ...

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