Libreboot: both chips fail to write properly

[inland sage]

so i got a thinkpad t480s and im trying to libreboot it
using a pi pico using (this guide)[https://m.youtube.com/watch?v=iGKhsjvlSBQ] and i tried before with the cheaper black SOIC clips with the softer plastic but they broke pretty quick, had a lot of bad writes with them and idk if i damaged the chips or what :3
i got the more expensive $30 blue one ppl are recommending and i get better contact but

• thunderbolt chip fails verification somewhere around 0x37xxx
• bios chip fails to erase near the end (0xff0000)
  idk what to do im scared i damaged my chips :3 i dont have the tools to like put a new one on tho so im looking for other solutions

they consistently fail around the same places

[inland sage]

actually

i ran and stopped flashprog midway through alot

yah

[inland sage]

like it took either way too long to read or way too long to write and like

by way too long i mean like 10 mins

i think i’ll buy some shit to properly microsolder and remove and reattach new chips properly