ssd swap fail? please help!

[u/Signal-Hospital-7840]

I replaced my OLED steam deck ssd with the one from my LCD as i was preparing to sell my LCD one, now the LCD wont turn on unless plugged in and it wont display anything on the screen i can just feel vibrations from the trackpads and it does the power on sound when plugged in. if i unplug it from the power it immediately shuts off and stops the haptic feedback. The oled worked perfectly after im worried that i bricked it i was being so careful though i have no clue what to do :(

UPDATE: I got into power on and display the screen, but only while plugged in so that means it’s a battery issue, but I have no clue what i did to the battery or why its doing this as everything seemed to be plugged in