Actually, use SPIM3 for SX1262 on T-Echo

Display.h

@@ -75,7 +75,7 @@
   #define SCL_OLED 17
   #define SDA_OLED 18
 #elif BOARD_MODEL == BOARD_TECHO
-  SPIClass displaySPI = SPIClass(NRF_SPIM3, pin_disp_miso, pin_disp_sck, pin_disp_mosi);
+  SPIClass displaySPI = SPIClass(NRF_SPIM0, pin_disp_miso, pin_disp_sck, pin_disp_mosi);
   #define DISP_W 128
   #define DISP_H 64
   #define DISP_ADDR -1

sx126x.cpp

@@ -88,8 +88,8 @@
 #define FREQ_STEP_6X (double)(XTAL_FREQ_6X / FREQ_DIV_6X)
 
 #if BOARD_MODEL == BOARD_TECHO
-  SPIClass spim0 = SPIClass(NRF_SPIM0, pin_miso, pin_sclk, pin_mosi) ;
-  #define SPI spim0
+  SPIClass spim3 = SPIClass(NRF_SPIM3, pin_miso, pin_sclk, pin_mosi) ;
+  #define SPI spim3
 
 #elif defined(NRF52840_XXAA)
   extern SPIClass spiModem;