Download Android Oreo 8.1 firmware for KOOLNEE Rainbow Smartphone

Posted in Jun 23, 2018 in Firmwares, no comment

This firmware is for KOOLNEE Rainbow Smartphone with Mediatek MTK6580 as CPU. You can now buy it from for only $67 with free shipping world wide.

Download Android Oreo 8.1 firmware for KOOLNEE Rainbow Smartphone from here, here or here.


Firmware details
Archive: T939W_V2_P_DJY_D27_20180428
Model: KOOLNEE Rainbow Smartphone
Image file size: 512 MB
Platform: Mediatek MT6580
Project: t939w_v2_p_djy_d27_koolnee_gms
Config_version: V1.1.2
Image:  T939W_V2_P_DJY_D27_20180428
Inside archive: firmware + SP_Flash_Tool_v5.1812 + MTK_Driver_Auto_Installer_SP_Drivers_20160804.exe
Build number: full_t939w_v2_p_djy_d27_koolnee_gms-user 8.1.0 O11019 1524909227 release-keys


Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.

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