How to Transfer Color Block Jam Progress to a New Phone

What should happen on the old device?

Confirm the current progress and the documented sync or account requirements before changing devices. Do not assume that installing the same app automatically transfers every local state.

How do you verify the new device?

Open the game, check the visible level and progress, and confirm that the expected board is available. Only then should you retire the old installation or clear local data.

What if progress is missing?

Stop before starting a new sequence that could overwrite the state. Review the saving and multi-device instructions and collect device/account context for support.