What is the tpu file and is it necessary?

[RICK SCHU]

I'm upgrading to a newer revision image, but I don't have a TPU for that revision (A4SGE10C). Do I need the TPU file to flash? I have the TPU for my old revision (A4SGC00C).

[calvinc]

no you dont need the .tpu file to flash. just make sure you have the rom image file (.cpu), with or without ram block, it doesnt matter.

calvin.