Are you sure that these chips are MT25QL128(AVA1ESE0SIT) and are not faulty?
I'm asking because chip does not respond for any SPI commands.
It does not respond for Register Status, Device ID etc.
On chip is only designation:
6RA15
RW126
CB75
Here is datasheet: https://www.micron.com/~/media/document ... _aba_0.pdf
On page 2 is only part number ordering information but there is any information about designation on the chip.
I'm not sure if it is really MT25QL128 because designation mark is different and chip does not communicate via standard SPI.