Disclaimer: I am NOT responsible for any damage that may arise from the use of this utility, including, but not limited to bricked phones, computers catching fire or nuclear reactions.
WARNING: Always use the --resize option. As far as I know most devices just stretch the images, but I now consider the default behavior of the replace command to be unsafe, as it does not resize the images by default.
alectrona is a boot logo manipulator programmed that was created with the intention to be device-agnostic. For now it can extract header information, images and "replace" the images on the file, generating a new valid logo.bin.
- Extracts header information and images from boot logo files.
- Replaces images in boot logo files.
- Device-agnostic: in other words, this utility should be able to work with the logo.bin format of any device.
- Free and open source.
- For now, none!
| Codename | Name |
|---|---|
| condor | Moto E |
| otus | Moto E 2015 (2nd gen) |
| falcon | Moto G |
| harpia | Moto G4 Play |
| athene | Moto G4 / Moto G4 Plus |
| lux | Moto X Play |
| oneplus2 | OnePlus 2 |
| oneplus3 | OnePlus 3 |
If you need support for a different device, just open an issue!
For now, to install you need cargo (which comes with rustup). Just follow the installation steps at https://rustup.rs/ and then run cargo install --git https://github.com/pheki/alectrona.git.
Make sure you have rust's bin folder ($HOME/.cargo/bin) on your path.
Note: this program will overwrite files by default, so be careful with your filenames.
There are 4 possible subcommands to use with the alectrona-cli package:
- header: prints the file header
- extract: extracts a single logo from the file
- extract-all: extracts all logos from the file to a directory (folder)
- replace: replaces some logos in the file with provided images
Every one of them can be used with the following syntax:
alectrona -d <DEVICE_CODENAME> -i <ORIGINAL_LOGO_PATH.BIN> <subcommand> ...
Syntax:
alectrona -d <DEVICE_CODENAME> -i <ORIGINAL_LOGO_PATH.BIN> header
Example:
alectrona -d harpia -i logo_original.bin header
Syntax:
alectrona -d <DEVICE_CODENAME> -i <ORIGINAL_LOGO_PATH.BIN> extract <LOGO_IDENTIFIER> --output <OUTPUT_FILE>
Example:
alectrona -d harpia -i logo_original.bin extract logo_boot -o logo_boot.png
Syntax:
alectrona -d <DEVICE_CODENAME> -i <ORIGINAL_LOGO_PATH.BIN> extract-all --output <OUTPUT_DIRECTORY>
Example:
alectrona -d harpia -i logo_original.bin extract-all -o extraction_folder/
NOTE: This does NOT resize images BY DEFAULT, and flashing a boot logo with images with the wrong size may have unexpected results depending on your device. Please be careful.
Syntax:
alectrona -d <DEVICE_CODENAME> -i <ORIGINAL_LOGO_PATH.BIN> [--resize] replace <LOGO_IDENTIFIER INPUT_IMAGE>... --output <OUTPUT_FILE>
For each LOGO_IDENTIFIER INPUT_IMAGE pair, the logo with identifier LOGO_IDENTIFIER will be replaced with the image INPUT_IMAGE. In this case, -r or --resize can be used BEFORE (this will probably change in the future) replace and the images will be resized to the device size.
Example:
alectrona -d harpia -i logo_original.bin replace logo_boot new_boot_logo.png logo_battery new_battery_image.png -o new_logo.bin
As automated tests depend on the original logo.bin found on devices, they won't be published here for legal reasons. But the main tests are basically sanity tests which verify testing if encoding / decoding generates the same files.