Hi,
I have the same display;
Running the kbv graphic tester, I have found that the ID for mine is 0x9329.
The ID read by the program is not the correct ID.
Here is the testpattern code with the ID edited, so it should run.
I have set the monitor baud at 115200.
/*
generate testcard similar to BMP
*/
#include <Adafruit_GFX.h>
#if defined(_GFXFONT_H_) //are we using the new library?
#include <Fonts/FreeSans9pt7b.h>
#define ADJ_BASELINE 11 //new fonts setCursor to bottom of letter
#else
#define ADJ_BASELINE 0 //legacy setCursor to top of letter
#endif
#include <MCUFRIEND_kbv.h>
MCUFRIEND_kbv tft;
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#define RGB(r, g, b) (((r&0xF8)<<8)|((g&0xFC)<<3)|(b>>3))
#define GREY RGB(127, 127, 127)
#define DARKGREY RGB(64, 64, 64)
#define TURQUOISE RGB(0, 128, 128)
#define PINK RGB(255, 128, 192)
#define OLIVE RGB(128, 128, 0)
#define PURPLE RGB(128, 0, 128)
#define AZURE RGB(0, 128, 255)
#define ORANGE RGB(255,128,64)
#include <stdio.h>
uint16_t ID;
uint8_t hh, mm, ss; //containers for current time
uint8_t conv2d(const char* p)
{
uint8_t v = 0;
if ('0' <= *p && *p <= '9') v = *p - '0';
return 10 * v + *++p - '0';
}
void setup(void)
{
Serial.begin(115200);
Serial.println("===testcard_kvb ID = 0x9329 By TomGeorge 2021===");
tft.reset();
ID = tft.readID();
Serial.print("ID read from the TFTLDC = 0x");
Serial.println(ID, HEX);
// if (ID == 0xD3D3) ID = 0x9481; // write-only shield
// if (ID == 0xD3D3) ID = 0x9486; // write-only shield
ID = 0x9329;
Serial.print("Working TFT ID = 0x");
Serial.println(ID, HEX);
tft.begin(ID);
tft.setRotation(1);
tft.fillScreen(BLACK);
#if defined(_GFXFONT_H_)
tft.setFont(&FreeSans9pt7b);
#endif
hh = conv2d(__TIME__);
mm = conv2d(__TIME__ + 3);
ss = conv2d(__TIME__ + 6);
}
void loop(void)
{
int16_t x, y, dx, dy, radius = 108, idx;
uint16_t w, h, len, mask;
uint16_t colors[8] = { BLACK, WHITE, YELLOW, CYAN, GREEN, MAGENTA, RED, BLUE };
uint16_t height, width;
width = tft.width();
height = tft.height();
tft.fillRect(0, 0, 7, 3, WHITE);
tft.fillRect(313, 0, 7, 3, WHITE);
tft.fillRect(0, 237, 7, 3, WHITE);
tft.fillRect(313, 237, 7, 3, WHITE);
for (y = 0, w = 18, h = 3; y < 240; y += 13 * w + h) {
for (x = 25; x < 320 - 18; x += 2 * w) {
tft.fillRect(x, y, w, h, WHITE);
}
}
for (x = 0, w = 7, h = 18; x < 320; x += 17 * h + w) {
for (y = 21; y < 240 - 18; y += 2 * h) {
tft.fillRect(x, y, w, h, WHITE);
}
}
tft.fillRect(7, 3, 17 * 18, 13 * 18, GREY);
for (x = 7, y = 0, w = 1, h = 240; x < 320; x += 18) {
tft.fillRect(x, y, w, h, WHITE);
}
for (x = 0, y = 3, w = 320, h = 1; y < 240; y += 18) {
tft.fillRect(x, y, w, h, WHITE);
}
tft.fillRect(26, 22, 17, 99, TURQUOISE);
tft.fillRect(26, 120, 17, 99, PINK);
tft.fillRect(44, 22, 17, 35, AZURE);
tft.fillRect(44, 184, 17, 35, ORANGE);
tft.fillRect(260, 22, 17, 35, AZURE);
tft.fillRect(260, 184, 17, 35, ORANGE);
tft.fillRect(278, 22, 17, 99, OLIVE);
tft.fillRect(278, 120, 17, 99, PURPLE);
for (dx = radius; dx > -radius; dx--) {
w = sqrt(radius * radius - dx * dx);
y = 120 - dx;
dy = (y - 3) / 18;
mask = 7;
colors[0] = (dy == 3) ? DARKGREY : BLACK;
switch (dy) {
case 0:
case 1: idx = 1; len = 0; break;
case 2: idx = 0; len = 0; break;
case 3: idx = 0; len = 13; mask = 1; break;
case 4:
case 5: idx = 2; len = 38; break;
case 6:
case 7:
case 8: idx = 0; len = 0; break;
case 9: for (idx = 2; idx < 8; idx++) {
//dy = 0xFF >> (7 - idx);
dy = (idx - 2) * 51;
colors[idx] = tft.color565(dy, dy, dy);
}
idx = 2; len = 38; break;
case 10: idx = 1; len = 0; break;
case 11:
case 12: colors[2] = YELLOW; idx = 2; len = 0; break;
}
if (len == 0)
tft.fillRect(160 - w, y, w * 2, 1, colors[idx]);
else {
if (mask == 1) idx = 1 + (w) / len;
dy = w % len;
for (x = 160 - w; x < 160 + w; idx++) {
tft.fillRect(x, y, dy, 1, colors[idx & mask]);
x += dy;
if (x + len > 160 + w) dy = w % len;
else dy = len;
}
}
}
for (x = 72, y = 129, dx = 5, dy = 0; dx > 0; x += 2 * dx) {
tft.fillRect(x, y, dx, 36, WHITE);
dy += dx * 2;
if (dy >= 36) {
dy = 0;
dx--;
}
}
tft.fillRect(160 - 8, 5 * 18 + 3, 17, 3 * 18, BLACK);
for (x = 3 * 18 + 7, y = 6 * 18 + 3, w = 1, h = 18; x < 160 + 108; x += 18) {
tft.fillRect(x, y, w, h, WHITE);
}
tft.fillRect(160 - 108, 120, 108 * 2, 1, WHITE);
tft.fillRect(160, 5 * 18 + 3, 1, 3 * 18, WHITE);
tft.fillRect(108, 2 * 18 + 3, 6 * 18, 18, WHITE);
// tft.fillRect(108, 10 * 18 + 3, 6 * 18, 18, BLACK);
tft.fillRect(160 - 8, 11 * 18 + 3, 17, radius - 18 * 9 / 2, RED);
tft.setCursor(160 - 36, 24 + ADJ_BASELINE);
tft.setTextColor(BLACK);
tft.setTextSize(1);
tft.print("320x240");
tft.setCursor(109, 43 + ADJ_BASELINE);
tft.setTextColor(BLACK);
tft.setTextSize(1);
tft.print("ID=0x");
tft.print(ID, HEX);
tft.setTextColor(WHITE, BLACK);
// tft.setFont(NULL);
// tft.setTextSize(2);
while (1) {
if (++ss > 59) {
ss = 0;
mm++;
if (mm > 59) {
mm = 0;
hh++;
if (hh > 23) hh = 0;
}
}
char buf[20];
sprintf(buf, "%02d:%02d:%02d", hh, mm, ss);
tft.fillRect(108, 10 * 18 + 3, 6 * 18, 18, BLACK);
tft.setCursor(128, 187 + ADJ_BASELINE);
tft.print(buf);
delay(1000);
}
}
I hope this works for you as well.
Tom... 
PS. Sorry for the image quality, not my best phone.
