Ventoid

Ventoid is an Android utility for preparing Ventoy-style USB drives directly from a phone.

It is built for users who want a clean, open-source path to writing a multi-ISO boot USB without using a desktop app for every change.

What Ventoid does:

- Detects supported USB mass-storage devices connected over OTG
- Requests Android USB permission only when needed
- Writes a Ventoy-compatible MBR or GPT layout
- Writes the Ventoy boot core and EFI image, including the x86_64 Secure Boot chain
- Formats the main data partition as exFAT
- Shows a concise install status and progress bar

Why it is useful:

- No root required
- No ads
- No account
- No analytics
- No cloud dependency

Important:

- Ventoid writes directly to the selected USB drive, so choosing the correct target device matters
- A working OTG adapter or powered hub is required for actual USB writing
- Device compatibility can vary depending on the phone, cable, USB bridge, and flash drive controller

Ventoid is intended for advanced users, repair kits, travel setups, and people who want a portable boot-media workflow from Android.

Ventoid 0.4.0 — Ventoy 1.1.18 and USB management.

- Bundle Ventoy 1.1.18 with refreshed boot assets and signed EFI hashes
- Inspect USB drives and update Ventoy while preserving ISO files
- Block downgrades and offer same-version boot-file repair
- List exFAT images/free space and warn about zero-byte images
- Support drives over 2 TiB with GPT; fix GPT BIOS boot pointers
- Validate reserved space, sample written sectors, and show speed/ETA