Congratulations to Cicadaman & co. for getting Froyo running on the Nook Color! Visit the nook Color portal!
See Rooting new hardware FIRST if you have a nook original with a 1003* serial# or above.
Recalibrate the NookColor touch screen
From nookDevs
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Part of the NookColor portal
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Sometimes the nook will start seeing "phantom touches" or inaccurate touches, or not respond to reasonable touches. To see it an action, use MultiTouch Test; it shows the phantom red dot jumping around your finger. When that happens you need to recalibrate the touch screen.
Credit to IO-monster for finding this.
From a command prompt on a pc connected to a rooted nook type:
adb shell echo 2 > /sys/bus/i2c/devices/2-0022/forcecal
wait 10 seconds then type
dmesg
You should see messages about calibration like:
cyttsp:Calibration successful ttsp_forcecal_store: Forcing TP calibration NOW. ttsp_forcecal_show:ttsp_forcecal_show: ttsp_forcecal_show:ttsp_forcecal_show: tpfwver=00
If you got the "Calibration successful" message you did everything right. Now type:
reboot
If the calibration isn't yet good enough, there are three "tricks" to try.
- do the echo command while having a finger on the screen lightly
- cover the screen with plastic wrap and issue the echo command
- do the echo command with the screen facing down. This makes it SUPER sensitive.
