Spectre X2 (12-a050na) Touch response inverted on Y-axis.

[nouriassafi]

hi all,

I've been fixing a cracked touch screen on a Spectre X2 this past week, and I managed to get the exact same touch screen digitizer assembly replacement (part number 830345-001) from overseas and installed it nicely into the display panel ...

Although it works, the touch response is inverted on the Y-axis now, so touch on the top left corner and you have the Windows Start menu, touch on the top right corner and you have the Action Centre popping up.

Having faced the daunting task of replacing the touch screen digitizer assembly, it is painfully surreal to lose the correct touch responses. 

There should be an easy way to solve this problem by updating the firmware of the touch screen which shows as VID 0x04F3 PID 0x02220; a Taiwanese ELAN Microelectronics' product.

I have run the following commands:

IAP.exe -c -G 7 -p %PID% -V %VID% 

FW ID= 0x2ab1

IAP.exe -c -G 3 -p %PID% -V %VID%

BC ver= 0x6b21

Chip Num= 2

FW ver= 0x5712

IAP.exe -c -G 5 -p %PID% -V %VID%

Test ver= 0x0016

IAP.exe -c -G 6 -p %PID% -V %VID%

WHCK ver= 0x0000

Would very much appreciate if you could point me in the right direction.

[MKazi]

@nouriassafi

Let me take a moment to thank you for posting on the HP Support Forums. I came across your post and would like to help. 

I understand that you have got the screen replaced for your HP Spectre x2 - 12-a050na laptop. I read that the touch response is inverted on the Y-axis now. 

The evidence points towards the touchscreen itself. I have checked the HP website but could not find a firmware update to fix this kind of an issue. 

However, I recommend you to perform the following steps as they might help:

• Please download and install the drivers from this HP link.
• You may restart the laptop once the installation is complete.

Now you may test the touchscreen and if the issue persists, I suggest to run a  hardware test on the touchscreen:

• Hold the power button for at least five seconds to turn off the computer.

• Turn on the computer and immediately press the F2 key repeatedly, about once every second.

• The HP PC Hardware Diagnostics (UEFI) main menu is displayed.

• Select component tests.

• Please initiate a test on the Touch Screen - Quick interactive test to determine if the touch screen is functioning correctly. Click Touch Screen, then Run once.

I the issue persists then you may contact the original place who replaced the screen and ask for the screen replacement again. 

I hope this information helps. Keep me posted for any further questions. Cheers! 

[nouriassafi]

Unfortunately, I get the inverted touch response from within the BIOS. It has nothing to do with my Windows installation.

In an ideal world a replacement based on part number should work flawlessly. Alas this is not an ideal world.

I find myself at the mercy of HP. May I at least request the release of the touchscreen firmware?

[MKazi]

@nouriassafi

I have escalated your concern to HP’s Support Team in your region to have it reviewed for available options, if any. You should be contacted within 4 business days (Excluding holidays & Weekends).

Response times may vary by region. Please send a Private Message, if you aren’t contacted within 4-5 business days.

[Hubermx]

I have this same problem. The point-click check in the BIOS clearly demonstrates that the touch screen is inverted along the y-axis. Up is down, and vice versa. Do you know if this case was resolved? 

[nouriassafi]

There are two versions of the touch screen both under the same part number ie 830345-001.

You need to check the touch flex cable that comes with your original screen before replacing the dispaly panel assembly. Mine originally came with an HPNGDM-1201403 V1.0 touch screen. However, I replaced it with an FP-ST120SI000AKM-03X touch screen and, as a result, got the inverted touch response.

Hope this helps.

[Hubermx]

Yes, that is indeed my problem too. Thank you very much for promptly responding, I should still have time to settle a return with my vendor.