SD Card Formatter version 5.0.3 (build 3023.2.3.14) Developed by Tuxera Inc. FSTYPE:FAT16 FSCLUSTERSIZE:32768 DEVICETOTALBYTES:2002714112 FSTOTALBYTES:2002452480 FSBYTESFREE:2002419712 FSLABEL:STELMAD PROGRESS:0/100 Overwriting the beginning of the device with zeroed data... PROGRESS:42/100 Overwriting the beginning of the device with zeroed data... PROGRESS:44/100 Overwriting the beginning of the device with zeroed data... PROGRESS:44/100 Overwriting the end of the device with zeroed data... PROGRESS:86/100 Overwriting the end of the device with zeroed data... PROGRESS:86/100 Creating SD-compatible partition table... PROGRESS:89/100 Creating SD-compatible partition table... PROGRESS:89/100 Writing root directory... PROGRESS:90/100 Writing root directory... PROGRESS:90/100 Writing file allocation table... PROGRESS:95/100 Writing file allocation table... PROGRESS:95/100 Writing file allocation table... PROGRESS:99/100 Writing file allocation table... PROGRESS:99/100 Writing reserved region... PROGRESS:99/100 Writing boot region... PROGRESS:100/100 Writing boot region... [ERROR] Invalid end of sector signature: 0x0000 [ERROR] fat_check_validate_boot_sector returned error: 22 (Invalid argument) [ERROR] Initializing cached values failed: 22 (Invalid argument) [ERROR] Generated invalid volume. fat_volume_create returned: 22 (Invalid argument)