Download Android Lollipop 5.0 stock firmware for Mlais M4 Note smartphone from here or from here. Download another Mlais firmware from here.
Firmware details
Archive: Mlais_M4_20150613
Image: 20150613_c218v13_jbl_hd_3m_note
Archive size: 564 MB
Support: Mediatek MT6752
Project: c218v13_jbl_hd_3m_note
Config_version: V1.1.2
Build number: c218v13_jbl_hd_3m_note-user 5.0 LRX21M 1434162583 test-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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