Chosen Solution
Hi, My MacbookAir has been damaged with water. I found at least one part that has been damaged but i can’t find the part number of this part. The marking is C03211 Thanks, Carol
Carol Beaulieu, this is only to identify the part. Anytime you have had water damage, you need to consider other short circuits. The part is reference number U3210 which is a CD3211A0RGPR current-limited power mux.