Attempting to learn some of the LCD connector pinout by tracing some signals
from the SPCA552E - those signals which are suggested by the Nokia schematic
showing the same chip.

LCD_D0, coming from SPCA ball D1: L8 trace goes to (3779,1826). L7 trace to
(2404,1833).  Appears to connect to display pin 9 by way of a via in the pad.

LCD_D1, SPCA ball E1: (3802,1816). L7 trace to (2320,1817).
Connects to display pin 10.

LCD_D2, SPCA ball E2: (3808,1841). L7 trace to (2325,1760).
Connects to display pin 11.

LCD_D3, SPCA ball E3: (3906,1855). L7 trace passes through (3695,1701), then
goes to (2325,1703).  The middle tap seems to go to a resistor whose other end
is a copper fill (GND).  Nokia's schematic has a pull-down resistor on this
LCD_D3 net as a mode-select for the SPCA552E.  The display end connects to
pin 12.

LCD_D4, SPCA ball F1: (3791,1774). L7 trace to (2387,1707).
Appears to connect to display pin 13 by way of a via in the pad.

LCD_D5, SPCA ball F2: (3759,1687). L7 trace to (2483,1551).
Connects to display pin 14.

LCD_D6, SPCA ball F3: (3744,1664). L7 trace to (2329,1636).
Connects to display pin 15.

LCD_D7, SPCA ball G1: (3798,1695). L7 trace to (2302,1540).
Connects to display pin 16.

LCD_D8, SPCA ball G2: (3806,1669).
LCD_D9, SPCA ball H1: ball at (3839,1680), no visible connection.
LCD_D10, SPCA ball J1: ball at (3840,1631), no visible connection.
LCD_D11, SPCA ball H2: ball at (3889,1682), no visible connection.
LCD_D12, SPCA ball J2: ball at (3888,1631), no visible connection.

The 4 "unconnected" balls above indeed have invisible microvias in the pads,
visible on L7.  On L7 there is a bundle of 5 traces with LCD_D8 at the bottom
and LCD_D12 at the top.  Vias back to L8:

LCD_D8: (2571,1409), pin 18
LCD_D9: (2544,1408), pin 19
LCD_D10: (2516,1409), pin 20
LCD_D11: (2515,1380), pin 21
LCD_D12: (2569,1298), pin 22

LCD_D13, SPCA ball G3: (3790,1506). L7 trace to (2561,1209), pin 23.
LCD_D14, SPCA ball H3: (3827,1507). L7 trace to (2541,1189), pin 24.
LCD_D15, SPCA ball J3: (3935,1597). L7 trace to (2522,1165), pin 25.

Display connector pinout:

Pin  1:
Pin  2:
Pin  3:
Pin  4:
Pin  5:
Pin  6:
Pin  7:
Pin  8:
Pin  9: D0
Pin 10: D1
Pin 11: D2
Pin 12: D3
Pin 13: D4
Pin 14: D5
Pin 15: D6
Pin 16: D7
Pin 17: connects to copper flood, must be GND
Pin 18: D8
Pin 19: D9
Pin 20: D10
Pin 21: D11
Pin 22: D12
Pin 23: D13
Pin 24: D14
Pin 25: D15
Pin 26: fat trace to (2427,1123)
Pin 27: looks like a possible via-in-pad
Pin 28: fat trace goes through an exposed test point at (3068,1042), then to
	via at (3161,1001)
Pin 29: looks like a possible via-in-pad
Pin 30: connects to copper flood, must be GND