Flashtool is a S1 flashing software that can be used to
- Flash original images or rebrand your device
- Flash only some parts of the original image
- Upgrade to the latest release
- Root your phone
- Unlock/Relock your phone and participate to Sony Open source developments
- Install Recovery, Busybox, custom kernels (root needed)
- Clean your Rom by removing unwanted apps (root needed)
- Customize your Rom (installs apps found in the custom/apps folder of Flashtool)
- Edit any text file on the device (root needed)