[Android Q&A, Help & Troubleshooting] hackwerk:
From screen info (Cursor Location)(blue line on the exact edge):

Top Y = 0 (!)

Bottom edge Y = 1280 (!)

Gap Y = around 630 - around 690 (and other way around)(always different, only occurs when very gentle and slow)(points 0/1 so no multitouch etc)

Conclusion is that the extreme values can be touched now at the edges and SEEM spot on! Strange thing however is that now in the middle TOUCH is SPOT ON but going up from the middle it gets more and more ABOVE my finger and going down from the middle its gets more and more lower than my finger?! At top a few (3?) mm above fingertip, at bottom a few mm under.

From the logs:

Of course the X values are variable and not important, and the [p] is also variable and always 0 or 1 or 2.

Top (Y = 0):

<4>[ 5536.130348] (0)[77:mtk-tpd] DATA high 4, low 235

<4>[ 5536.130388] (0)[77:mtk-tpd] RAW cinfo->x[0] = 366, cinfo->y[0] = 1259, cinfo->p[0] = 2, point_num=1

<4>[ 5536.130421] (0)[77:mtk-tpd] CAL cinfo->x[0] = 366, cinfo->y[0] = 1399, cinfo->p[0] = 2, point_num=1

<4>[ 5536.130453] (0)[77:mtk-tpd] cinfo->x[0] = 366, cinfo->y[0] = 1399, cinfo->p[0] = 2, point_num=1

.

Bottom (Y = 1280):

<4>[ 5559.338735] (0)[77:mtk-tpd] DATA high 0, low 107

<4>[ 5559.338771] (0)[77:mtk-tpd] RAW cinfo->x[0] = 559, cinfo->y[0] = 107, cinfo->p[0] = 2, point_num=1

<4>[ 5559.338803] (0)[77:mtk-tpd] CAL cinfo->x[0] = 559, cinfo->y[0] = 118, cinfo->p[0] = 2, point_num=1

<4>[ 5559.338836] (0)[77:mtk-tpd] cinfo->x[0] = 559, cinfo->y[0] = 118, cinfo->p[0] = 2, point_num=1

Button 1 & 2 & 3:

<4>[ 5564.454873] (1)[77:mtk-tpd] DATA high 0, low 1

<4>[ 5564.454888] (1)[77:mtk-tpd] RAW cinfo->x[0] = 88 (or 89 etc), cinfo->y[0] = 1, cinfo->p[0] = 2, point_num=1

<4>[ 5564.454902] (1)[77:mtk-tpd] CAL cinfo->x[0] = 88 (or 89 etc), cinfo->y[0] = 1, cinfo->p[0] = 2, point_num=1

<4>[ 5564.454915] (1)[77:mtk-tpd] cinfo->x[0] = 88 (or 89 etc), cinfo->y[0] = 1, cinfo->p[0] = 2, point_num=1

<4>[ 5565.087052] (1)[77:mtk-tpd] DATA high 0, low 1

<4>[ 5565.087084] (1)[77:mtk-tpd] RAW cinfo->x[0] = 327 (or 328 or 330 etc), cinfo->y[0] = 1, cinfo->p[0] = 2, point_num=1

<4>[ 5565.087117] (1)[77:mtk-tpd] CAL cinfo->x[0] = 327 (or 328 or 330 etc), cinfo->y[0] = 1, cinfo->p[0] = 2, point_num=1

<4>[ 5565.087149] (1)[77:mtk-tpd] cinfo->x[0] = 327 (or 328 or 330 etc), cinfo->y[0] = 1, cinfo->p[0] = 2, point_num=1

<4>[ 5566.624187] (1)[77:mtk-tpd] DATA high 0, low 1

<4>[ 5566.624224] (1)[77:mtk-tpd] RAW cinfo->x[0] = 628 (or 627 etc), cinfo->y[0] = 1, cinfo->p[0] = 2, point_num=1

<4>[ 5566.624257] (1)[77:mtk-tpd] CAL cinfo->x[0] = 628 (or 627 etc), cinfo->y[0] = 1, cinfo->p[0] = 2, point_num=1

<4>[ 5566.624289] (1)[77:mtk-tpd] cinfo->x[0] = 628 (or 627 etc), cinfo->y[0] = 1, cinfo->p[0] = 2, point_num=1

Gap happening (swipe downwards & swipe upwards):

<4>[ 5549.329864] (1)[77:mtk-tpd] DATA high 2, low 120

<4>[ 5549.329883] (1)[77:mtk-tpd] RAW cinfo->x[0] = 294, cinfo->y[0] = 632, cinfo->p[0] = 2, point_num=1

<4>[ 5549.329897] (1)[77:mtk-tpd] CAL cinfo->x[0] = 294, cinfo->y[0] = 702, cinfo->p[0] = 2, point_num=1

<4>[ 5549.329910] (1)[77:mtk-tpd] cinfo->x[0] = 294, cinfo->y[0] = 702, cinfo->p[0] = 2, point_num=1

<4>[ 5549.346146] (1)[77:mtk-tpd] cinfo->x[0] = 294, cinfo->y[0] = 702, cinfo->p[0] = 2, point_num=0

<4>[ 5549.407824] (1)[77:mtk-tpd] DATA high 2, low 173

<4>[ 5549.407863] (1)[77:mtk-tpd] RAW cinfo->x[0] = 299, cinfo->y[0] = 685, cinfo->p[0] = 0, point_num=1

<4>[ 5549.407896] (1)[77:mtk-tpd] CAL cinfo->x[0] = 299, cinfo->y[0] = 761, cinfo->p[0] = 0, point_num=1

<4>[ 5549.407928] (1)[77:mtk-tpd] cinfo->x[0] = 299, cinfo->y[0] = 761, cinfo->p[0] = 0, point_num=1

---

<4>[ 5551.068607] (0)[77:mtk-tpd] DATA high 2, low 121

<4>[ 5551.068630] (0)[77:mtk-tpd] RAW cinfo->x[0] = 295, cinfo->y[0] = 633, cinfo->p[0] = 2, point_num=1

<4>[ 5551.068647] (0)[77:mtk-tpd] CAL cinfo->x[0] = 295, cinfo->y[0] = 703, cinfo->p[0] = 2, point_num=1

<4>[ 5551.068663] (0)[77:mtk-tpd] cinfo->x[0] = 295, cinfo->y[0] = 703, cinfo->p[0] = 2, point_num=1

<4>[ 5551.083417] (0)[77:mtk-tpd] cinfo->x[0] = 295, cinfo->y[0] = 703, cinfo->p[0] = 2, point_num=0

<4>[ 5551.160339] (1)[77:mtk-tpd] DATA high 2, low 175

<4>[ 5551.160378] (1)[77:mtk-tpd] RAW cinfo->x[0] = 305, cinfo->y[0] = 687, cinfo->p[0] = 0, point_num=1

<4>[ 5551.160411] (1)[77:mtk-tpd] CAL cinfo->x[0] = 305, cinfo->y[0] = 763, cinfo->p[0] = 0, point_num=1

<4>[ 5551.160443] (1)[77:mtk-tpd] cinfo->x[0] = 305, cinfo->y[0] = 763, cinfo->p[0] = 0, point_num=1

Conclusion: It loses my touch for a moment when very slow and/or gentle (point num 0)?! Bad screen (in the middle) or?!

Need more? I am so excited :P