It sounds like you're asking for a technical deep-dive feature on a very specific niche topic: MT6589 Android scatter files combined with emmctxtnnlin — likely a typo or shorthand for emmctxt and nnlin (NAND linear parameters) in MediaTek's proprietary format.
The term EM_MC_TXT_NNLIN refers to a specific header format within the scatter text file. mt6589 android scatter emmctxtnnlin exclusive
Physical Start Addresses: Where each block of data begins on the NAND/eMMC chip. It sounds like you're asking for a technical
Pro tip: If you see this flag in a scatter file, never flash userdata using dd or generic partition tools. EMMC: Embedded Multi-Media Card (the storage standard)
SP Flash Tool: Use a version compatible with MT6589 (v3.x or v5.x are usually best).
18;write_to_target_document19;_IUbuaYr7OrDGkPIP8PXneA_20;55; 0;10c9;0;bd3;
Format All + Download: Use this only as a last resort, as it will wipe your IMEI and NVRAM (causing "Invalid IMEI" errors). 4. Connecting the Device