What is a .DTBO file?
DTBO is a device-tree overlay that patches hardware settings on top of a base DTB.
- Did you know
- Overlays let add-on boards describe their hardware without rebuilding the whole device tree.
- On Android, overlays live in a dedicated dtbo partition so the bootloader can patch hardware without reflashing the base tree.
- Picking overlays by board ID lets one firmware image describe several board variants from a shared base device tree.
- What Analyser reads
- Inspect virtual-machine descriptors (VMware .vmx, VirtualBox .vbox, OVF/OVA), disc images (Nero .nrg, Alcohol .mds/.mdf, CloneCD), embedded firmware (Intel HEX, Motorola S-record, UF2, ELF/AXF, Device Tree Blobs, U-Boot uImage), partition tables (MBR/GPT with GUIDs), Linux filesystem superblocks (ext2/3/4, SquashFS, cramfs, romfs) and Windows imaging (WIM/ESD) - reading headers directly, no upload.
- Depth of analysis
- .DTBO is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .DTBO file
- Drag a .DTBO file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.