Download Android KitKat 4.4.4 ColorOS 2.0 for Ecoo E04 Aurora smartphone from here or here. Download stock firmware from here. Download another Ecoo firmware from here.
Firmware details
Archive： ColorOS2.0-ECOO_E04_2GB_3GB_ BETA_20150328
Model: Ecoo E04 Aurora smartphone
Project: oppo6752_14053
Build number: oppo6752_14053-user 4.4.4 KTU84P eng.root.1423802871 dev-keys
Firmware details
Archive： ColorOS2.0-ECOO_E04_2GB_3GB_ BETA_20150328
Model: Ecoo E04 Aurora smartphone
Image: ColorOS2.0-ECOO_E04_2GB_3GB_ BETA_20150328.zip
Image file size: 799 MB
Platform: Mediatek MT6732Image file size: 799 MB
Project: oppo6752_14053
Build number: oppo6752_14053-user 4.4.4 KTU84P eng.root.1423802871 dev-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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