Touchscreen calibration The touchscreen works inconsistently, and sometimes the wrong numbers come up.

To access the service menu on your Bernina 830, you can follow these steps:

1. Turn off the machine and unplug it from the power source.
2. Hold down the Reverse and Needle Down buttons, then plug the machine back in while holding these buttons.
3. Continue to hold down the Reverse and Needle Down buttons until the service menu appears on the screen.

From here, you should be able to navigate the service menu using the arrow keys on your machine. To access the calibration option, you will need to select the "Touch Test" option from the menu.
Unfortunately, without a working touchscreen, it may be difficult to navigate the service menu. One option may be to try using an external USB keyboard, as you suggested. However, this may not be compatible with the Bernina 830, so it's not guaranteed to work.
If you're unable to access the service menu or calibrate the touchscreen, it's possible that there may be a hardware issue with the machine that needs to be addressed by a professional technician.

Have you tried recalibrating the touchscreen?

To calibrate the screen of the Zumo 550, press and hold the power button for about a minute until the screen calibration appears.

My touchscreen on Garmin nuvi 1390 not working too and .calibration it's help alsoI did twice hard reset my GPS Garmin Nuvi 1390 and nothing happening and after I tried different trick,when I turned GPS off I hold the top left corner screen.The screen exchange for calibrations and I pressed several times according request and my GPS Garmin Nuvi 1390 started work,but repairing company wanna charge me $100 Canadian dollars.I didn't connect GPS to computer

Hi,

Try to calibrate your touchscreen response by going to SETTINGS>PHONE SETTINGS>DISPLAY SETTINGS>CALIBRATION..

Sounds like the calibration for the touchscreen needs to be reset. If you check in the control panel, there should be a ELO shortcut that allows you to calibrate/test the touchscreen. Try running through the calibration and see if the touchscreen behavior improves. If the calibration doesn't fix it, then you may have an issue with the touchscreen itself.

Have you tried restarting the phone

try recalibrating the lcd. to do this, please follow the steps below:

One can incorrectly calibrate the remote by pressing areas on LCD other than the ones marked during the calibration process.

Solution
To re-calibrate a remote which has been incorrectly calibrated, please follow these steps:

1. Put the remote in safe mode.
   1. Remove the battery
   2. Hold down the System Off button on the remote while inserting the battery back into the remote
   3. Continue to hold the System Off button until the remotes LCD has lit up and reads Safe Mode
   4. Let go of the power button
2. Reboot the Remote
   1. Remove the battery once more
   2. Re-insert the battery
3. Follow the calibration wizard on the Remote to re-calibrate it by pressing on the areas indicated.
   

toughscreen driver

We have three TX's in our family with non-working power buttons. I downloaded the program Au Dodo http://www.freewarepalm.com/utilities/audodo.shtml and simply now use the far left button (button 1) as my 'power' button. It works wonderfully.

I haven't found out how to fix the calibration problem, but power on/off has been totally fixed. Good luck for you.

try calibrating the unit