PlatformIO RP2040 and ST7789 without CS PIN Dark/Black Screen

[Hraefns]

Hi newcomer here, I need help with making this library to work on my RP2040(YD-RP2040) and ST7789(Without CS PIN) using PlatformIO. I can confirm the PIN is correct and the TFT is not faulty because I already tried to do a flashing background test manually without any library.

I tried to set TFT_BACKLIGHT_ON to LOW and it's work because my TFT screen goes complete black, I can see a greyish flash when I press the reset button too, but after that all I see just complete black screen.
EDIT: I see the lights kind of flashing in loop but it's still black (so it's like backlight go darker and go lighter if that make sense) but this only happens if I power up my pico with another pico (because I was trying to debug it), if I power it up directly through USB C I can see a slight flash when I press the reset button but that's all no flashing after that.

I already tried to search the platformIO.ini example and this is what I came up with but still no luck:

[env:ydrp2040]
platform = https://github.com/maxgerhardt/platform-raspberrypi.git
board = vccgnd_yd_rp2040
framework = arduino
board_build.core = earlephilhower
board_build.mcu = rp2040
monitor_speed = 115200

lib_deps = 
    LittleFS
    SPI
    bodmer/TFT_eSPI@^2.5.43
    lvgl/lvgl@8.4.0

build_flags =
    -D PICO_CYW43_SUPPORTED=0 ; To prevent undefined reference __wrap_cyw43_cb_process_ethernet error from building earlephilhower's lib
    -D CYW43_PIN_WL_DYNAMIC=0 ; To prevent undefined reference __wrap_cyw43_cb_process_ethernet error from building earlephilhower's lib
    
    ;###############################################################
    ; TFT_eSPI library setting here (no need to edit library files):
    ;###############################################################
    -Os
    -D USER_SETUP_LOADED=1
    -D ST7789_DRIVER=1

    -D TFT_WIDTH=240
    -D TFT_HEIGHT=240

    -D TFT_SPI_PORT=1
    -D TFT_MISO=-1
    -D TFT_MOSI=15
    -D TFT_SCLK=14
    -D TFT_CS=-1
    -D TFT_RST=12
    -D TFT_DC=11
    -D TFT_BL=10
    -D TFT_BACKLIGHT_ON=HIGH

    -D LOAD_GLCD=1
    -D LOAD_FONT2=1
    -D LOAD_FONT4=1
    -D LOAD_FONT6=1
    -D LOAD_FONT7=1
    -D LOAD_FONT8=1
    -D LOAD_GFXFF=1
    -D SMOOTH_FONT=1

    -D RP2040_PIO_SPI=1
    -D RP2040_DMA=1

    -D SPI_FREQUENCY=27000000
    -D SPI_READ_FREQUENCY=5000000

Here is the simple code I used to test with TFT_eSPI:

#include <Arduino.h>
#include <TFT_eSPI.h>
#include <SPI.h>

TFT_eSPI tft = TFT_eSPI();

int main()
{
    tft.init();
    // tft.setRotation(1);
    tft.fillScreen(TFT_GREEN);

    while (1)
    {
        tft.fillScreen(TFT_BLUE);
        delay(1000);
        tft.fillScreen(TFT_RED);
        delay(1000);
        tft.fillScreen(TFT_GREEN);
        delay(1000);
        tft.fillScreen(TFT_WHITE);
        delay(1000);
    }

    return 0;
}

I don't know if the setup is correct since I'm pretty new to PIO and somehow my earlephilhower will failed without having PICO_CYW43_SUPPORTED & CYW43_PIN_WL_DYNAMIC set to 0. Any help will be really appreciated! :)