Old part number was SH98 and then SH90. To reset the shaver, press and hold the on/off button for more than 5 seconds. i9000 8000 and 9000 Series. Easy to replace heads -. Fits i9000 Series.
Philips Genuine Replacement Shaver Shaving Heads for 3000 & 1000 Series SH30 UK
Philips Genuine Replacement Shaver Shaving Heads for 3000 & 1000 Series SH30