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11-13-2012, 01:32 AM   #1
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K10d : downgrade from 1.31 to 1.10 ?

Hello everybody,

does anyone know how to edit the firmware so I can downgrade my K10d? The hacked firmware does not work on K10 with firmware 1.31.

Thanks

11-13-2012, 03:05 AM   #2
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There's a thread on it here:
https://www.pentaxforums.com/forums/pentax-dslr-discussion/88078-k10d-1-3-1-1-how.html

Chances are that you won't be able to downgrade from 1.31 because the hacked firmware corresponds to 1.30. In any case, you technically shouldn't ever need to downgrade...

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11-13-2012, 03:14 AM   #3
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I have a pentaxiste who have a 16-50mm with SDM not working, discovering it with updating his K10d, he needs the lens within a month, so it could be an answer until he made his 16-50 being repaired.

Already tried the hack firmware, it does not work
11-13-2012, 06:46 AM   #4
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QuoteOriginally posted by Adam Quote
In any case, you technically shouldn't ever need to downgrade...
If you want a lens with broken SDM to be able to focus, there would definitely be a need to downgrade! Partially the reason I keep my old K100d (non-super) laying around.

11-14-2012, 10:13 PM   #5
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i tried the hacks, did not work. I have to send my 16-50 for SDM repair.

I am not going to buy another SDM lens again.
11-17-2012, 12:37 AM   #6
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Does Anybody know who made the hacked firmware ? It may be easy to switch the number in order to allow the downgrade from 1.31
11-17-2012, 01:49 AM   #7
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I've never installed hacked camera firmware so I've no idea if it would work, but just looking at my k-30 1.01 firmware code with HEXEDIT, the version number is in the first line of code and could be edited no problem, making sure you don't change the number of characters in the code, and resaved. Whether the camera would like it, that's the question but I vaguely remember the author of the K10 hacked firmware saying this is all he did.
11-18-2012, 04:29 AM   #8
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I already tried, it does not work enought.

The important is to make the firmware enabling the update. But once done, it needs to be recognized as 1.10

11-18-2012, 04:31 AM   #9
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In fact, there is a way to try to find where is the new code, it needs to shoow side by side a firmware 1.10 not altered and the hacked firmware.
If there is only few differences, it is where the code needed to be change.

But it is fastidious and also not safe as far as even 1.10 firmware may differ from website you get it...
11-18-2012, 07:21 AM   #10
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To correct front/back focus on K10D.

1. Battery 100 % charged.

2. To check the firmware currently loaded in the camera press Menu at the same time you switch the camera on. The LCD screen shows firmware version.

3. If your version is 1.10 go to step 15. If it is later version go to step 4.

4. Use next link to unload two files you will need to change firmware. One is a readme file and the other one is firmware 1.10. Select a folder to store them. http://www.vietzon.com/download/k10e110w.exe

5. Copy the file FWDC162B in the root directory of a previously formatted SD card.

6. Switch the camera off.

7. Insert the SD card.

8. Switch the camera On while pressing MENU. Do not continue if battery is not fully loaded.

9. Choose YES y press OK.

10. LCD shows UPDATING. Do not switch camera off. This process takes 90 seconds.

11. When LCD shows COMPLETED turn the camera off.

12. Remove SD card.

13. Turn the camera on while pressing menu to check firmware version.

14. The firmware file should be deleted from the SD card root directory when the SD card is used to take pictures.

15. Firmware 1.10 is already loaded in the camera. Switch the camera on while pressing PLAY + OK.

16. Pressr Fn>Fn>INFO>MENU

17. Pressing right you will get to DEBUG MODE. Screen blackens.

18. Press MENU and choose PREFERENCES.

19. Press up and choose TEST MODE.

20. Choose AF TEST. Use AF Area test 1.
To correct front focus reduce the value.
To correct back focus increase the value.

21. Make a focus test and repeat steps 18, 19 and 20 if necessary.

22. It is recommendable to make the focus test with different focal lenghts to find a compromise value.

23. Once tests are finished repeat steps 4 to 13 but using the firmware 1.31 file which may be found here Latest K10D Firmware Update : Software Downloads | PENTAX RICOH IMAGING
11-18-2012, 07:32 AM   #11
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The hacked firmware does not work anymore if the K10D has a 1.31 firmware.

The message says :

UPDATE FILE VERSION IS OLD
CANNOT UPDATE....

All my trouble is that the K10 has the 1.31 firmware.

I already used before this firmware to downgrade successfully, but it was before the dark times of 1.31...
11-18-2012, 08:10 AM   #12
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QuoteOriginally posted by clover Quote
The hacked firmware does not work anymore if the K10D has a 1.31 firmware.

The message says :

UPDATE FILE VERSION IS OLD
CANNOT UPDATE....

All my trouble is that the K10 has the 1.31 firmware.

I already used before this firmware to downgrade successfully, but it was before the dark times of 1.31...
There must be something in some K10D units or its settings that prevents the downgrading.

I have had both successful and unsuccessful results.

I unsuccessfully tried to downgrade firmware in a friendīs K10D once.

But I several times downgraded my K10D firmware from 1.31 to 1.10.

I do not own my K10D anymore, so I canīt give you more details on the settings my unit had.

Alvaro.
11-18-2012, 10:20 AM   #13
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did you update your firmware from pentax.jp or PentaxUS ?
11-18-2012, 11:19 AM   #14
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QuoteOriginally posted by clover Quote
did you update your firmware from pentax.jp or PentaxUS ?
I am sorry, I canīt remember.

Alvaro.
03-17-2013, 10:24 PM   #15
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I find Pentax's lack of support disturbing.



Adjusting the autofocus is VERY useful... Especially when its not adjusted correctly from the factory...

Last edited by jkomp316; 03-17-2013 at 10:38 PM.
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