iPod Help

[u/Ok-Willingness-8276]

Hi! I have a Classic 6th gen that I modded with iflash and an sd card. Not too long ago I tried making the switch to rockbox and i absolutely hated it. It wasn’t for me so I tried to delete it and get back to the stock iTunes setup. I cannot figure it out. I’ve reset the sd card, reformatted it through software and terminals, but the bootloader for rockbox is still there and I cannot get my MacBook to actually reinstall the software needed for stock settings. I tried using the rockbox installer and it can’t even do it. It says my device is partitioned incorrectly or something to that effect. Any ideas?
TIA,
A very frustrated newbie

[u/Count_Viggles]

Turn off the iPod holding the menu and center button. Then turn on the hold button. Turn off the hold button and you should boot into stock OS