Calibrating delay loop... OK. Found SST flash chip "SST25VF032B" (4096 kB, SPI) on buspirate_spi. Reading old flash chip contents... done. Erasing and writing flash chip... Erase/write done. Verifying flash... FAILED at 0x00009180! Expected=0x45, Found=0x43, failed byte count from 0x00000000-0x003fffff: 0x4db Your flash chip is in an unknown state.