SST26VF016B - What happens in read/write/erase conditions during power interruptions?
If power is interrupted during page programming, the sector (that contains the page) can get corrupted due to a program disturb error. After a power-cycle, erase the sector and re-program the whole sector. If power is interrupted during sector/block/chip erase, then a power-cycle is needed after which the sector/block/chip needs to be erased again respectively. If power is interrupted during read, then there is no corruption. Do a power-cycle and perform read again.