Lenovo K910L is Qualcomm based devices that support Firehose protocol
Replacing eMMC of this type of devices is easy using UFI.
Just follow step by step how to do that below
Prepare blank eMMC. We using samsung KMVTU000LM-B503(16Gš BGA 153.
Factory format eMMC, don't forget to make Nand Test, and resolder eMMC to board.
Assembly the phone.

Open Ufi Android ToolBox, go to Qualcomm tab, don't forget to alway set Brand and Model and Firmware Correctly.
Firmware available in support and ready for flashing.

After device fully working, now Root the devices, enable Diagnostic Port for repair Imei
To enable diagnostic port, use Read button in Service tab. Repair Imei by writing Qcn file.
Qcn file also already available in support server.

Congratulation UFiXERS, you just revive Lenovo K910L.
