Click the (gear wheel) located on the upper-left navigation ribbon. Under the chip configuration menu, map your primary Flash Downloader files: Assign fdl1.bin to the FDL1 field. Assign fdl2.bin to the FDL2 field. 3. Map Binary Image Partitions

You have a full .bin backup of a phone and need to convert it into a format the SPD Upgrade Tool can read.

Launch the ResearchDownload.exe binary from your extracted archive folder. Ensure you run the application with administrator privileges to allow unrestricted access to temporary system folders. 2. Load the Chip Configuration

The process involves "packaging" the individual binaries into a new structure. 1. Prepare Your BIN Files

Repeat this for other partitions like boot , recovery , and system . Note that some files may need to be renamed to .img format, while others can stay as .bin . : Go to the Options tab and uncheck Repartition . Build the Packet : Click the Packet button. Enter a Product Alias (phone model) and Product Version .

These are the official flashing utilities provided by UniSOC/Spreadtrum. They include the necessary backend engines used to read, edit, and package firmware files. 3. SPD Factory Tool or PacConverter

For each remaining partition (system, recovery, boot, etc.), double-click the corresponding row under the "File Name" column and select the appropriate .bin or .img file.

Converting a .bin file to a .pac file is a common requirement for technicians working with devices, such as Android smartphones and smartwatches.

The standard utility for "packeting" separate firmware components into a single .pac file.