No – a SOIC8 clip works for 90% of cases. Desolder only if the clip cannot reach due to nearby components (rare on 5480).
You cannot flash a raw .bin file via a USB drive using the standard Dell recovery (Ctrl+Esc). You need a hardware SPI programmer. Here is the professional workflow. dell 5480 bios bin
The 5480 (and its cousin, the 5490) uses a 16MB or 32MB Winbond SPI flash chip. If a Windows update fails, a docking station glitches, or the laptop suddenly loses power during a firmware update, the Boot Block gets destroyed. The laptop cannot find the "map" to turn on the CPU or RAM. No – a SOIC8 clip works for 90% of cases
You generally need to manually flash a .bin file when the standard recovery methods have failed. Common scenarios include: You need a hardware SPI programmer
The most common method is using an external programmer device, such as a CH341A Programmer or a higher-end tool like a RT809H.