PT5-V2.01.29 can't upgrade to V3.04.09.
There is no firmware update for PT5 V2. V2.01.29 is the latest firmware of PT5 V2. V1, V2, and V3 represent the hardware version number. We only have two generations of PT5. But in fact, the PT5 on sale now is the third generation of PT5. V2 can't upgrade to V3.