If you have installed mtd-utils.....
then nandtest (with no switches) is an easy way to erase SPI (-k to retain data)
something like......nandtest /dev/mtdblock0...... it does take ~15m though
then nandtest (with no switches) is an easy way to erase SPI (-k to retain data)
something like......nandtest /dev/mtdblock0...... it does take ~15m though