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  1.    #1  
    I have a Pre3 A with a broken display glass. (It was a small crack in the beginning and then it cracked all over.) But the display still works and the touchscreen too. But I'd like to replace the glass with a complete one that is sitting on another Pre3 B which else is not working at all. I was able to exchange the top display unit. But the new display from Pre3 B is not working. (It might be damaged like the rest of the Pre3 B == is in QHSUSB_DLOAD state).

    But I noticed that Pre3 A still boots with the new display - but there is nothing displayed. I connect to Pre3 A with WOQI commandline and I see processes running there.

    I wonder if I can find out what is damaged at the Pre3 B display unit? Is there some diagnostic tool to checkout the display and the touchscreen via commandline ? Can I check some logfiles that would report errors for a not working display unit?

    Is there any way to take the complete glass from Pre3 B and put it on top of the displays of the Pre3 A?

    ---
    BTW - what is the right command to shutdown the Pre3 from unix commandline? reboot -h ?
    Last edited by MartinH@webos; 01/04/2015 at 11:59 AM. Reason: shutdown question
  2. #2  
    Replacing just glass?

    try this with the "new" panel
  3.    #3  
    Quote Originally Posted by mazzinia View Post
    Replacing just glass?

    try this with the "new" panel
    Thanks for the hint !

    I wonder if the PmTpUpdater is good to repair the Touchsensor or if this could also reset the display ?
    For me the display is totally black and I have no idea if the Touchsensor is still active and working.

    Are there any tools to verify ( diagnose ) what part of the display unit is working or not working?
  4. #4  
    mah, in another thread there were people having issues with "new" displays, not just to the sensor but to the screen itself, from dark to fuzzy to etc..

    trying that command is not going to hurt, at most will say that the screen fw is up to date ( with the -h option, anyway, seems preferable ).
    (searh pmtpupdater to find that thread, is under pre3 and is 2 or 3 pages long, relatively recent)
  5.    #5  
    Quote Originally Posted by mazzinia View Post
    trying that command is not going to hurt, at most will say that the screen fw is up to date
    OK - I tried this:
    stop hidd
    cd /usr/bin
    PmTpUpdater -f
    start hidd

    which led to this:
    calibrating panel...
    error -721096 during transfer (w 1)
    error during calibration

    as you can see here in detail:
    Quote Originally Posted by linux
    root@webos-device:/# ps -A | grep hidd
    ps -A | grep hidd
    1219 ? 00:00:00 hidd

    root@webos-device:/# stop hidd
    stop hidd
    (00171/782990807) hidd (stop) running, process 1219
    (00171/794648522) hidd (stop) pre-stop, (main) process 1219
    (00171/796052331) hidd (stop) stopping, process 1219
    (00171/797181481) hidd (stop) killed, process 1219
    (00171/831239100) hidd (stop) post-stop
    (00171/832337733) hidd (stop) waiting

    root@webos-device:/# cd /usr/bin
    cd /usr/bin

    root@webos-device:/usr/bin# PmTpUpdater
    PmTpUpdater
    id: 0584, family/die: 70, major rev: 12
    installed version: 17
    error -721096 during transfer (w 1)
    error reading version, update must be forced to continue

    root@webos-device:/usr/bin# PmTpUpdater
    PmTpUpdater
    id: 0584, family/die: 70, major rev: 12
    installed version: 17
    error -721096 during transfer (w 1)
    error reading version, update must be forced to continue

    root@webos-device:/usr/bin# PmTpUpdater
    PmTpUpdater
    id: 0584, family/die: 70, major rev: 12
    installed version: 17
    error -721096 during transfer (w 1)
    error reading version, update must be forced to continue


    root@webos-device:/usr/bin# PmTpUpdater -f
    PmTpUpdater -f
    id: 0584, family/die: 70, major rev: 12
    retrieving rom data...
    error -721096 during transfer (w 2)
    unable to retrieve global idac table
    error -721096 during transfer (w 1)
    unable to retrieve local idac table
    error -721096 during transfer (w 1)
    unable to retrieve panel id
    error -721096 during transfer (w 1)
    unable to retrieve scratch data
    programming '/lib/firmware/cy8ctma300e'...
    calibrating panel...
    error -721096 during transfer (w 1)
    error during calibration


    root@webos-device:/usr/bin# start hidd
    start hidd
    (00505/629365315) hidd (start) waiting
    (00505/629670491) hidd (start) starting
    (00505/629853597) hidd (start) pre-start
    (00505/638551107) hidd (start) spawned, process 2761
    (00505/638886801) hidd (start) post-start, (main) process 2761
    (00505/639527670) hidd (start) running, process 2761
  6. #6  
    mmm,

    what happens if you run PmTpUpdater without the -f , now ?
  7.    #7  
    Quote Originally Posted by mazzinia View Post
    mmm,

    what happens if you run PmTpUpdater without the -f , now ?
    still the same as before:
    id: 0584, family/die: 70, major rev: 12
    installed version: 17
    error -721096 during transfer (w 1)
    error reading version, update must be forced to continue
  8. #8  
    sigh. in theory the -f was supposed to force the update, no matter what
  9. #9  
    Cracked Pre3 screen

    those error messages look like yours and

    Cracked Pre3 screen
    the issue solved itself after a while, apparently
  10.    #10  
    Quote Originally Posted by mazzinia View Post
    Cracked Pre3 screen

    those error messages look like yours
    Yes, but in my case the remaining error is specific and I did not find it elsewhere

    error during calibration
    Quote Originally Posted by mazzinia View Post
    the issue solved itself after a while, apparently
    Yes, but for me this above error did not go away. I tried several times and rebooted - without change.
    I assume this indicates some fatal damage.

    ---
    BTW - I find this wiki page about many nice WebOS3_Packages
    WebOS3 Packages - WebOS Internals

    which lists:
    Package: pmtpupdater Description: Touch panel Firmware Updater

    But I wonder if there is more detailed information about these tools somewhere (in git or wiki or ..) ?
  11. #11  
    Quote Originally Posted by mazzinia View Post
    sigh. in theory the -f was supposed to force the update, no matter what
    If this is not HW fault try PmTpUpdater -f many times one by one (like 20, 30 times) maybe it will go through.
    I had a few succesfull firmware updates on TouchPads which were beyond repair, but I haven't tried this on Pre 3.
    Last edited by Sumy; 01/05/2015 at 04:22 PM.
  12. #12  
    Interesting.. I tried repeatedly on a Veer with a non-responsive touchpanel, but never got it to work. Acts like it can't talk to the panel.
  13. #13  
    Quote Originally Posted by Grabber5.0 View Post
    Interesting.. I tried repeatedly on a Veer with a non-responsive touchpanel, but never got it to work. Acts like it can't talk to the panel.
    Rebooting device than immediately running PmTpUpdater -f seems help, but not sure if really as this is kind of weird behaviour but I remember that I had more success when doing so.
  14.    #14  
    Quote Originally Posted by Sumy View Post
    If this is not HW fault try PmTpUpdater -f many times one by one (like 20, 30 times) maybe it will go through.
    I had a few sucesfull firmware updates on TouchPads which were beyond repair, but I haven't tried this on Pre 3.
    I think I tried it about 30 times or so. Will try it a few more times ..

    I just did the same on a good working Pre3 without issues:

    PmTpUpdater
    id: 0584, family/die: 70, major rev: 12
    installed version: 17
    programmed version: 17
    firmware is up-to-date
    retrieving rom data...
    global idac table: 119 117 117 117 119 122 123 126
    9
    local idac table: 13 15 15 15 16 17 19 22 17 18 18
    15 16 15 12 14 13 14 13 13 14 12 16 17 17 17 17 17
    Not sure what these data tables are about.
    I did not get this above response on the damaged Pre3.
    Is this any data that I could transfer over from the good Pre3 to the damaged Pre3?

    And is this tool just about the Touch sensor? Also my damaged display is black. Any tool to test / enable the display ?
  15. #15  
    the tool is about the sensor but in other threads the "faulty" panels in some cases had also screen issues ( image was partial etc ) and the flashing fixed that too. (or so I understood reading)
  16. #16  
    Quote Originally Posted by Sumy View Post
    Rebooting device than immediately running PmTpUpdater -f seems help, but not sure if really as this is kind of weird behaviour but I remember that I had more success when doing so.
    I tried that at least a couple times.. May as well try again right?
  17.    #17  
    Quote Originally Posted by MartinH@webos View Post
    I think I tried it about 30 times or so. Will try it a few more times ..
    I ran the tool several more times. No change.
    I runs for about 8-10 seconds for the job: programming '/lib/firmware/cy8ctma300e'...
    and then returns the error message "error during calibration"

    The PmTpUpdater script has this code line:
    catnip cal -s 64 || { echo "error during calibration"; exit 1; }

    I also tried this code snippet - which I found at John's post:
    Startup Calibration - Touchpad

    stop hidd
    catnip resume
    catnip --i2c-only cal -s 64
    catnip suspend
    start hidd

    no hope:
    catnip --i2c-only cal -s 64
    error -721096 during transfer (w 1)
  18. #18  
    stupid question... you tried reseating the cable ?
  19. #19  
    Seems you can still talk to the chipset, never really had to force the Tounchpanel of the Pre3 (Veer yes), but not the Pre3, the Touchpad has more options with catnip, I would validate your ribbon cable is not torn or connected incorrectly. As this is more likely the issue.
  20.    #20  
    Quote Originally Posted by mazzinia View Post
    stupid question... you tried reseating the cable ?
    I will try to disconnect the flex (metal) cable and connect it again.
    This was the first time I connected such cable and I'm not sure how much pressure it needs.
    Also I did not see and check the other end of the flex cable which is hidden under the slider. I still need to check out how to unmount the Pre3 slider from the back of the display unit.
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