Georg Lukas explores the Samsung WB850F camera, which was the first to combine the DRIMeIII SoC with WiFi, offering an uncompressed firmware binary containing a valuable linker dump and symbol names. Lukas delves into reverse-engineering the main firmware to enable WiFi hotspot detection and use samsung-nx-emailservice. The firmware archive reveals various files, with the ‘partialImage.o.map’ file being a crucial treasure trove for understanding the firmware structure. By analyzing the ‘WB850-FW-SR-210086.bin’ header and partitions, Lukas uncovers bootloader stages, firmware data, and possible UI components. Utilizing tools like Ghidra, Lukas maps the firmware to correct memory addresses and deciphers functions to troubleshoot WiFi issues effectively.
https://op-co.de/blog/posts/samsung_wb850f_firmware/