Fastboot Variables Inspector
The Variables tool queries and displays hardware variables and configuration parameters from the bootloader (equivalent to running fastboot getvar all).
Viewing Variables
- Connect the target device in Fastboot mode via USB OTG.
- In Dioxamine, navigate to Fastboot > Actions > Variables.
- Dioxamine will send the
getvar allcommand and present a list of all exposed variables.
Common Fastboot Variables
| Variable | Description |
|---|---|
product | Hardware codename of the target device (e.g. husky, taro, marlin). |
current-slot | Active A/B boot partition slot (a or b). |
slot-count | Number of partition slots supported by the device (2 for A/B devices, 1 for legacy A-only). |
unlocked | Current bootloader state (yes = unlocked, no = locked). |
secure | Indicates if Secure Boot is active. |
battery-voltage | Current battery voltage in millivolts (useful if device battery is depleted). |
max-download-size | Maximum packet size the bootloader accepts during image flashing in bytes. |
version-bootloader | Internal bootloader firmware version string. |
version-baseband | Cellular modem / baseband firmware version string. |
UI Controls
- Refresh (Top Right): Tap the refresh button to re-query the variables from the target device.
- Copy: Long press on any variable to copy its key and value to your clipboard.