How to Update and Upgrade Coocaa 32S3U Software and Firmware? | 32S3U Software Download File

By Jesson Balaoing -

This will fix the A2Z local channel no sound and casting problem on your Coocaa 32S3U Coolita Smart TV. Issue such as, Android mobile phone can't connect to Smart TV (Coocaa 32S3U) or hard to connect to the TV using Cast feature. It is not limited to Android but also with iPhone Airplay feature via Access Point.

Tools Needed:

  1. 16GB USB Flash Drive (Fat32)
  2. Laptop or Desktop Computer
  3. WinRAR
  4. Software: Security (736MB )

Ø  aml_sdc_burn.ini

Ø  signed_aml_upgrade_package.img


Coocaa 32S3U Sys Info after Update



The updated software for Coocaa 32S3U Coolita Smart TV comes with Software Version: Ver C.2.1.4.4_921D_SA,Git e09618, Nov 30 2023 09:55:00.

Software Download Information and Link:

You can download the updated software for Coocaa 32S3U Coolita Smart TV here >>> Coocaa 32S3U Coolita Smart TV Software and Firmware

How to Update and Upgrade the Coocaa 32S3U Firmware and Software?

  • Download the Software and Firmware with filename "Security.7z" from the link above
  • Extract the downloaded file .7z file with filename "Security.7z" using WinRAR.
  • Format your USB Flash Drive to "FAT32".
  • Open the folder "Security" and copy "aml_sdc_burn.ini" and "signed_aml_upgrade_package.img" into your USB Flash drive root directory. Please refer to the image below for your reference.

  • Insert the USB Flash drive containing the  Coocaa 32S3U Coolita Smart TV Software and Firmware into your TV USB port located at the back, adjacent to the Antenna port.
  • Press and hold the power button of the your Coocaa 32S3U Coolita Smart TV while inserting the plug to the power supply. Keep pressing the power button until the Coocaa Logo appears.
  • When the "upgrading software appears" please do not turn off the Coolita TV. Please refer to the image below for your reference.

The whole software and firmware, update and upgrade process will took for a few minutes. Coocaa 32S3U Coolita Smart TV will automatically turn off and turn when the progress bar reach 💯%.

How to Download Coocaa 32S3U Coolita Smart TV Software and Firmware?

  • Click the link provided above: "Software Download Information and Link:"
  • Click the down arrow on your browser. Please see image below for your reference.
Web page open with a message " 高安-Security.7z (241) is too large for Google to scan for viruses. Would you still like to download this file?
  • Click on Dowload anyway. Please refer to the image below for your reference.
  • Finally the Download Started. Please refer to the image below for your reference.

Once the download is completed, downloaded filename should be "高安-Security.7z", it is a compressed file. To extract the .7z file you need to download WinRAR apps here: https://www.win-rar.com/start.html?&L=0

How to extract .7z file?

Select the 高安-Security.7z, right click and click on Extract All..., please refer to the image below for your reference.
Select a Destination and Extract Files. To extract click "Extract", please refer to the image below for your reference.
The total size of extracted .7z file is 736MB. Open the folder "高安-Security" >>> "高安-Security" and copy "aml_sdc_burn.ini" and "signed_aml_upgrade_package.img".

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