at least five resin
at a upgrade station

at an upgrade station, choose the upgrade you want

when it asks to deposit your resin, hold it out, and pass it to your other hand
then quickly put it back in your backpack.

do it quickly

you can tell if it worked as your resin counter should increase (look at the screen)

• 10 resin min
  
• choose upgrade at station
  
• hold resin out
  
• move it to other hand
  
• put it back in backpack
  
• repeat it quickly