The V1.3 firmware had to be changed to match new used SDA, SCL pins for the OLED on this board pictured
#elif defined(TLORA_V1_3)
// This string must exactly match the case used in release file names or the android updater won't work
#define HW_VENDOR HardwareModel_TLORA_V1_1p3
#undef GPS_RX_PIN
#undef GPS_TX_PIN
#define GPS_RX_PIN 36
#define GPS_TX_PIN 13 // per @eugene
#define BATTERY_PIN 35 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
//#define I2C_SDA 4 // I2C pins for this board
//#define I2C_SCL 15
#define I2C_SDA 21 // I2C pins for this board
#define I2C_SCL 22
The Download firmware will give you a Blank screen
Anyone else has the same board?