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    MrVivona Junior Member

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    I have a Rosen Navagation unit installed in a Santa Fe that has issues with touchscreen calibration that may also affect Prius Rosen units. My Rosen model number ends in P11, just like latest Rosen nav unit used in the Prius. Unfortunately for me, I cannot find any other Rosen users in the Hyundai forums. Fortunately for me, there seems to be a lot of them here in the Prius forum. So, let's see if we can help each other out with a problem you may also have, but not be aware of. I am trying to find out if it is a system-wide software bug, or an isolated issue. Read on.

    1. First, go to the Radio mode, touch Menu, Settings and touch the greyed out Keypad in the upper right corner of the screen. A keypad will appear. Enter 7253 and press Enter. The installer settings will appear. Set the RDS switch to ON, or RBDS, if it is not already set. This sets your FM radio to display the Song Title and Artist on stations that broadcast RDS (USA stations). To check RDS, exit the Settings menu and go to an FM station and see if the title and artist of the song appears on the screen. If not, check other stations, not all broadcast RDS data. Once you see that you are getting RDS, go to the next step.

    2. Next, check if your touchscreen is calibrated. It is easiest to see screen calibration on the Phone screen. Use a blunt pointed object, like a toothpick, to touch the phone dialpad buttons to see if they react exactly as they are displayed. If you find that you can touch between the buttons and still get a response from an adjacent button, or worse yet, the edge of one button activates the adjacent button, then your touchscreen is out of calibration. See the attached picture for an example of an out of calibration touchscreen. If it is out, go to the Main Menu and look for a Touch setting. Follow the on-screen instructions to touch each “+†until you have calibrated the screen.

    3. Go back to the Phone screen and test calibration again. It should be much better.

    4. Turn the ignition switch to OFF to fully power down the Rosen. Then turn it back to ACC to power it back on. Did RDS information disappear from the FM radio screen? If so, you have the problem. Turn RDS back on per Step 1 above, then power the radio OFF and ON again with the ignition switch. Check your touchscreen calibration per step 2 above. Did it go out?

    The software bug is simply stated as: Calibrating the touchscreen causes RDS to turn off after turning the unit OFF and ON. Turning RDS back on causes the touchscreen to go out of calibration after turning the unit OFF and ON.

    That concludes part one of the test. Please post your results.

    If I get responses here, I will post how to test your navigation touchscreen calibration. It is most likely a lot further off than the audio screens were, and will create problems particularly when you use the keyboard to enter addresses. The test I will post will demonstrate if you have a software bug that loses Nav touchscreen calibration.

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    MrVivona Junior Member

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    Hmmm. It is interesting that there have not been any responses yet. Perhaps a quicker test will temp a few Rosen users to reply. :)

    The next time you use your Rosen, just switch to the nav mode, but don't start a route. Then, display the map and touch the screen with a stylus, or your fingernail. A red circle should appear on the map exactly where you just touched the screen. Try several places all over the map. If the red circle always appears exactly where you touched, your screen is calibrated. If not, it isn’t. See the attached picture for an example of a touchscreen that is out of calibration. Note how the red circle is about ½†to the left of the stylus touch.

    Then, post your results here. Was it calibrated, or not? It is just as important to know if your screen is calibrated as it is to know if it isn’t. If this turns out to be a common problem with Rosen units, I can help get a bug fix.

    Thanks!

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    rrg Member

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    I'm not a Rosen owner.

    Can the losing of setting be from a loose ground or a loose constant power.

    I say software bug if all is well connected.
    From the company get new firmware.

    my2cents.
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    MrVivona Junior Member

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    The problem is consistently repeatable.

    For the navigation screen, you run through the calibration procedure and the screen is properly calibrated. You simply turn the unit off, then back on, and the screen is back out of calibration attempt. Checking the SD card in a card reader on a PC shows that a new touch.cfg file had been written to the card with each calibration, so the calibration procedure is writing the file, but upon reboot, the Rosen does not properly read the touch.cfg file, and the screen is back out of calibration.

    For the audio touchscreen, you calibrate and the screen is properly calibrated. You then shut down and power up the Rosen and RDS is disabled, but the screen is still calibrated. You turn RDS back on and the screen stays calibrated until you power off and on. Then it comes up with RDS still enabled, but the touchscreen is out of calibration again. So, something about RDS and touchscreen calibration is in conflict such that upon bootup, one or the other can load, but not both.

    It certainly seems like a software bug. However, those that have dealt with Rosen will know that they are very hard to convince that they have a problem. I have been trying to get them to fix this problem but cannot get them to act on it. The original installer says they have no idea what to do other than swap out the unit if Rosen approves a swap under warranty.

    So, if I can show Rosen that this problem is a characteristic of all P11 units, they will have motivation to fix the firmware. Lacking an official Rosen user forum, the only place I have found a lot of Rosen users is in Prius Chat. You represent a more technically aware group of users and it seems a lot of you have installed Rosen nav units. If this indeed is a common problem of P11 units (the recent model used in the Prius) then I will have the evidence to pressure Rosen to develop a firmware fix and we all win. But if no Prius Rosen users respond, that can't happen.
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    Kentwang Junior Member

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    I got my Rosen in Jan of last year.
    Couple months ago, my Rosen malfunction. I reset it with a ball point pen. After that my RDS is on but no name show. I had been trying to get the name back but no luck.
    I am in bed now, I may try to check it tomorrow (if I remember). :D
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    MrVivona Junior Member

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    Rosen tech support would never say if they had actually fixed the touchscreen problem in firmware. They simply sent me a replacement unit and the new one has the exact same defect as the previous unit. So, that indicates to me that it is most likely that all Rosen Primo (P11) models have a firmware bug that causes the touchscreen to not stay calibrated.

    I do not think Rosen will fix the firmware unless many users complain and I don't see that happening, particularly among the Prius users here since not even one has taken the time to check his unit and post the results. I guess no one really cares if touchscreen responses are not lined up with the icons on the screen. True?
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    priusdvx New Member

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    I just tested in my new unit, installed yesterday, Sept 7. The bug appears fixed
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    MrVivona Junior Member

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    michinnom Junior Member

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    mine works perfectly, but overall, rosen = junk. i do not recommend it. the gps system is slow and buggy. i keep having to rely on my backup garmin too often. their customer service is also junk. this company needs to learn a lesson...damn fools

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