First, you must download the [[https://github.com/irdkwia/various-keitai-assemble|Various Keitai]] Assemble GitHub repository. We will be using the assemble_sh902i.py script as well as the tools in the utils folder. Concatenate all pieces of the file. Examples:\\ Windows Command Line copy /b SH700iS_LRS13B7-f1.bin + SH700iS_LRS13B7-f2.bin SH700iS_LRS13B7-f1f2.bin \\ Copy the concatenated file into the various-keitai-assemble project. Then use the following command: python assemble_sh902i.py .bin output_dir