Editing Pokétch App in Platinum (Trainer Counter)

[Muckifant]

I've been playing Pokémon Platinum on an Emulator and one day decided to use the Pokéradar to build a chain for a shiny Starly. That was about a year ago and i didn't know about the Shiny Patches and that you only need a chain of 40 for the highest chance to get them. So i encountered around 120 Starlys in a row until i got a shiny without the chain breaking because i was using savestates.

Now the Trainer Counter App that you use to count the current chain on the Pokétch always shows Starly at the 1st place of the podium for the longest chain. I could never replicate that without savestates.

Is there a known way to edit that specific App so i can get rid of the Starly chain record, or a way to reset Pokétch Apps in general as if you just unlocked them, maybe by editing some hex values? (Another example would be resetting the Pokémon History App, so that it's empty) I tried it with PKHeX by removing the Trainer Counter, saving and then reapplying it, but that won't reset it.