Quote:
Originally Posted by CaesarW
But the firmware I used for the jailbreak is a factory firmware.
I'll try upgrading to the latest firmware.
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Correct.
And you know that you have to install a customer-use firmware before you can expect the features advertised to the customer to work (or work correctly).
Since you still have the Q.A. firmware install, dig through the diagnostics, see if you can find the ts test/calibrate routine(s).
Late Edit:
You should also be able to find the results of each of the factory tests as "erased files" on the user visible USB storage.
Use any DOS/WINDOZE FAT-32 un-erase program to find them.
There should be several from where your touchscreen was tested.