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Flash firmware on NIU Andy 3.5E2I AM35E2I043

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How to flash NIU Andy 3.5E2I AM35E2I043?


Why reinstall the firmware?

Errors in the Android OS start to appear regularly.

Some installed applications stop opening.

Many applications from the Play Market do not start.

The phone restarts for no reason.

The phone began to slow down a lot.

You want to update the firmware, as it does not suit you in terms of functionality.





Where can I find the firmware?

On the official website of the phone manufacturer.

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


What should be done before installing the firmware?

Back up your phone's user data.

Insert an SD card into your phone to write the firmware to it.

Find information about your smartphone model.

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

Download Firmware and Place it on the SD card.





Installing TWRP Recovery

Download the Official TWRP App from the Play Market. And install it.

When you start the application for the first time, you need to give consent to future manipulations, as well as to give consent to granting the application Superuser rights and click the 'OK' button.

On the next screen, select 'TWRP FLASH' and give the application root rights.

TWRP

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

After selecting a device, the program redirects the user to a web page to download the corresponding image file of the modified recovery environment. Download the suggested *.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.

Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.

When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.

Transfer the firmware and other necessary files to the SD card.

Insert a memory card into the phone.

To reboot into recovery, you need to enter the menu accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. 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. You will delete all user data from the phone, this will avoid software errors and other problems.

Now you can start flashing. Click 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. Press the OK button.



TWRP

Select the firmware file 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, this is accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.

When the procedure for installing the firmware is completed, the message 'Successful' appears on the screen.





Summary: Design: Classic; DualSIM mode: yes; SIM cards standard: Mini Sim - Regular / Micro Sim; GSM: 850 900 1800 1900; HSDPA: 850 1900 HSPA; Dimensions (H/L/W): 115.5 x 62.8 x 10.7 mm, vol. 77.6 cm³; Display: TFTColor (16M) 320x480px (3.5") 165ppi; Touch screen: yes; Weight: 102 g; Time GSM (talk/stand-by): 18 / 260 hrs. (10.8d); Time UMTS (talk/stand-by): 8 / 217 hrs. (9.0d); Battery: Li-Ion 1300 mAh; Built-in memory: 4 GB; Memory card: MicroSD max. 64 GB; RAM memory: 512 MB; Operating system: Android 4.4; Chipset: Mediatek MT6572M; CPU 1: ARM Cortex A7; CPU 1 frequency: 1000.0 MHz(2-core); GPU Type: ARM Mali-400; GPRS: yes; EDGE: yes; HSDPA: 21 Mb/s; HSUPA speed: 5,7 ...

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