Padpone 2, locked bootloader, invalied Kernal

Hi,

I've managed to brick my Padpone 2 due to the infamous low battery looping issue. Currently if I boot into either fastboot or recovery (power + volume up/down) the phone stays powered..but only on fastboot, if I try the same on the recovery menu I can't choose any options and the phone...

Padpone 2, locked bootloader, invalied Kernal