[Tested] Download Firmware / Stock ROM Lenovo K3 Note Music K50a40 All Versions Latest Update

Firmware is a designation for software on a mini media memory on a hardware tool. If your Device encounters issues inclusive of Bootloop, Stuck in Logo, Brick, Total Death, Stock in FRP or any other Software issues, then you need a new Firmware installation to fix the corrupted system.
If your Android device has System problems, I suggest you do not rush to the Service Center, but you also have the opportunity to make improvements by flashing Firmware or Stock ROM.
If you wish to get another Lenovo Firmware, then you can get it on the post "Download Firmware Lenovo Android Devices (All Models)"
If your Android device is Lenovo K3 Note Music K50a40 and is experiencing system damage then dipostingan I have Lenovo K3 Note Music K50a40 Firmware for you to download for the sake of improvement.
After you get the Lenovo K3 Note Music K50a40 Firmware file in this post, then I have also made a post to do Flashing Firmware Lenovo K3 Note Music K50a40  consistent with the format of Firmware and Chipset used each version of the device. If you find a .pac Firmware format then you will need the Spreadtrum Upgrade Tool to do Flashing the Firmware, usually Lenovo K3 Note Music K50a40 device with Firmware .pac are using Spreadtrum Chipset. If your Lenovo K3 Note Music K50a40 tool makes use of Mediatek Chipset (MTK) then you can do Flashing Firmware using SPFT (SmartPhone Flash Tool) software, and if your Lenovo K3 Note Music K50a40 device makes use of Qualcomm Chipset (mbn) then you can do Flashing Firmware using QPST (Qualcomm Product Support Tool ).
To download the Lenovo K3 Note Music K50a40 Firmware, you can find it in the links in the table below:

LENOVO_K50A40_S424_MT6752_20160328.zip	1.7 GB