OK Guys...After fidgitting for hours on this with the bits & pieces
on this forum & on others...here's how I got it to finally work:
A- I have a Pentax Opio S hence I had to get the "fwdc110p.bin" file here:
Optio S4, S4i & S5i shall use another file. Don't really know for
S4 but for S4i & S5i, there on the Pentax customer service website
B- Drop this file on your SD Card at the root directory (same level as
DCIM folder) or as described by the following link and then close your
camera to OFF:
Attention: Do not load this file yet onto the camera i.e. the menu+power on procedure, follow step C first...
C- Open the now infamous "Secret Menu" in order to re-initialize your camera prior to re-installing the new firm ware:
Simultaneously press MENU + Flash symbol button + Power ON...a white screen with data written in black should show.
Then a sequence of buttons must be pressed: 2 times the focus button
(flower, mountain, MF symbols button) followed by 2 toggles to the
Right of the "OK" button...then press MENU once and voilà...ze Secret
Menu appears !
Using the down toggle of the OK button, go to "SYSTEM INITIAL" and press OK. Press another OK to re-initialize your camera.
Once this has been completed, turn your camera off.
D- Load the firm ware by opening your camera with the MENU+Power ON
procedure...finally this should be posting "Complete" after the
"Loading" message, instead of the "Error!" that we initially kept on
Your camera should be working perfectly ! Only thing, is that you will
have to redo your personal settings on it from scratch...but hey, this
is much better than to wait for months to get your camera back from
Pentax and save that money for your next photogenic trip !