agongtri OK Dear Agongtri First Click On Factory Reset And If it was successfully Without Problem Click On Erase After Erase completed Click On Nand Test If it Done Without Problem Too Click On Factory Reset Again so after these All Steps Done go to factory image tab and set platform/vendor on LG Brand and select KDZ Flash File for your Phone (D690) AND Click on Flash/Write or You Can Extract KDZ File With UFI And Flash With Extracted Scatter File That made by UFI But this Time Select MediaTek Platform Instead LG Do these Jobs and Post The Results if its Not Fixed Unfortunately you should change your eMMC With New One
