HOW TO: Convert SDM to ScrewDrive - Pentax

This video describes the process I used to convert my 50-135mm SDM lens to screw drive.
Proceed at your own risk.
Too Much for you? Go here: www.pentaxforums.com/forums/24...
Wanna give it a try? Keep Going.
NOTE: I am not responsible for any damage that my occur to your equipment. Continue at your own risk.
Stuff you need:
PKTether && Pentax DebugMode Files: github.com/blacknight659/pk_t...
(NOTE: PKtether.com site is currently down with malware. Above is a link to the most recent application 05/24/16)
Nopad++ (text editor): notepad-plus-plus.org/downloa...
Pentax Forums Other Links:
www.pentaxforums.com/forums/10...
Justin's Steps
1.) Download PKTether (pktether site)
2.) Download Camera Hack files (drop box)
3.) Download Notepad++
4.) Open Pktether
5.) Place SD card into camera, connect camera to computer (USB cable)
6.) Turn on Camera In PKtether activate DEBUG MODE
7.) Copy Hack Files to SD card
8.) Disconnect camera from USB cable
9.) Power Down Camera, Power back on
You are in Development Menu
10.) Scroll down to "Lens Rom Camera=SD" and hit OK. (it should go black, and then you will see the same screen again)
11.) Power off camera, Move SD card to PC and open it
12.) You are looking for the LENSEEP.LNS file. MAKE A BACKUP of this file - THIS IS LENS COPY SPECIFIC - ONLY YOUR FILE WORKS WITH YOUR LENS!
13.) Open LENSEEP.LNS with Notepad++
14.) Replace ALL instances of "C0" in column "03" with "80". DO NOT REPLACE any instances of "C0" outside of column "03".
15.) Move the new LENSEEP.LNS file to your SD card (replacing the orginal, remember to back up the orginal)
16.) Power Camera on
17.) Scroll to "LENS ROM DAT SD= CAMERA" and hit OK ( you will see "Wait..." and then some text)
NOTE: It failed the first time for me, needed to do it twice
18.) When Complete, lens should be in screw Drive
19.) Disable Debug Mode
A.) Use camera settings Menue Button Scroll left until you see "Test Mode" Disable Debug Mode Hit OK
B.) Connect to PKtether, Click Debug Mode Off

[@Orion795]

It worked with my 16-50. Thanks the video is very very simple to folow!

[@TighelanderII]

OMG....Thank guys so much! My 50-135mm is working again!

[@bienvenueici117]

Wow, thanks a lot. My 50-135mm came back to life. You make my day !!

[@Liamzog]

Followed your steps, worked perfectly. cant thank you enough for this.

[@danigonzalez4299]

Thanks mate! Following the video i just decided to buy a 50-135mm with dead SDM for a bargain price and convert it to screwdrive by myself and it seems it worked very well !

[@hudsonsouthwell4362]

Have been wanting to do convert the DA* 16-50mm SDM for years.... finally after following the steps, got it working on the 1st try!! Thank you

[@NiftyNak]

Thank You!!! Worked through my k_5 for a 16-50 ... only difference is had to exit debug before I could see the results.

[@wiqqle]

Thanks so much. After trying to repair the SDM on my own (and failed) this helped me so much. I tried to convert the SDM to screwdrive like 4 years ago with an k200d and it didn't worked. Now I finally have an working lens. :)

[@glennfitzgerald7865]

I just changed a recent fail 16-50 Pentax and a 50-135 that had been shelved for a while lens to screw drive. I am very pleased with the results and want to thank anyone and everyone who had a hand in making this conversion possible. I used a K-5 body for the conversion.

[@ServetusTrumpsCalvin]

Thank you, so much! I couldn't get any procedure to get into Debug mode on my K70. SDM would only focus on close objects, had to manually focus for landscapes. I borrowed a K-5, attached my DA*16-50 and followed your instructions. Voila!

[@Cespuglio]

Hi, you saved my wonderful 16-50 from being useless for me! Thank You so much!

[@edwindukes]

Justin, finally figured it out. Using Windows 10. I tried clicking on the two files and sliding them over to the card. Didn't work. Then I tried right clicking on the files and 'send to' and that worked. I now am a happy camper with a 16-50 lens that works fast and almost quiet. Never worked so well. Thanks for the video.

[@darkonikolic3509]

Thank you so much. It worked fine.. Now, I can use my favorite lens again.

[@cemkumuk9601]

THANKS MATE...! I REGAINED MY DA*300mm f/4. I WAS NOT ABLE TO USE IT FOR A LONG TIME BECAUSE OF SDM DEFECT. THX A LOT..!

[@Wosper]

Gonna try this on my 16-50 that sdm died on.

[@huntlarry1]

Excellent. Worked on my 16-50 that I recently lost AF altogether. Now to get the it to shutter down to the higher f-stops. Sticking at wide open intermittently.

[@evangeloskalavritinos1624]

Thank you , merci, ευχαριστώ πολύ !!!! Hi, you saved my wonderful 16-50 from being useless for me! Thank You so much!

[@althompson4612]

Worked like a charm!! Thanks!

[@iansmith7286]

Thank you. I have just completed this on my K-5 with Firmware 1.16. There were many more lines to be modified. But it works, my 50-135 has been revived. Anyone attempting this, be very careful. In my version of the lenseep.lns there were extra C0's in the line numbers on the left and also some in columns 05 and 08 that should not be modified. Also if you don't have the usb cable, the nikon cable UC-E6 will work.

[@NoTrail]

Thanks Justy! Very helpful. Worked great!!