Yes, if you keep the backup made with the fptw64 -d command, you can reinstall it again by specifying the backup file on a further -f command.
Do you know if my warranty been lost even after I recover the original bios? P.S. sorry for the offtopic
-Manufacturer: hp mini 1000 system board id 361a -Motherboard Modelont know ? american megatrends, inc ? -Bios revision:f.10 ? kbc ver. 02.0e -Bios Typeont know -Bios Download Link: dont have one -Current original card (like): broadcom bcm94312hmg -Card to be added (like): atheros ar5b95-h