The battery was confirmed to be unable to charge, and was replaced.A deviation between the stylus and cursor was noted.The display was replaced.The software was reloaded and updated, and the device passed all final functional and systems tests.If information is provided in the future, a supplemental report will be issued.
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Failure analysis was performed on the touch controller printed circuit board assembly (pcba).Visual inspection: no anomalies observed.Benchtop analysis: install the provided touch controller pcba on a known good unit.Stylus doesn¿t align with cursor in the screen.Perform calibration twice and restarted encore programmer twice ¿ touch screen still cannot be calibrated properly, and stylus doesn¿t align with the cursor.Installed a known good touch controller pcba and stylus calibrated properly.Confirmed customer complaint touch screen cannot be calibrated properly due to failing touch controller pcba.Conclusion: complaint confirmed.The touch controller pcba is out-of-spec electrical.If information is provided in the future, a supplemental report will be issued.
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