820-02016 DFU error 4014 - dead nand?

[luckydip]

Working on a Air 820-02016, had extensive liquid damage around SPI/SOC which I hopefully sorted. Machine powers straight to DFU but when I restore get the 4014 error. Checked all the awake around NAND

PP0V88_AWAKE_NAND, PP1V25_AWAKE_NAND, PP2V5_AWAKE_NAND all present.

Any other power rails to check or dead NANDS? thanks