: Since this is an EMMC dump, you will likely need a programmer like the RT809H or TNM5000 to flash this directly to the chip via the ISP interface or by removing the chip.
Since you are looking for "part10.rar," the file is likely part of a split archive (e.g., 001 to 010). You can try searching file aggregators for the exact string: : Since this is an EMMC dump, you
Use a search operator like RT2842P639 "part10.rar" on Google to find the specific thread where the full set was posted. Important Technical Reminders: : Since this is an EMMC dump, you