# Firmware description

```

├─GPS_ reset_test       # GPS reset procedure for t-beam-v1.x
├─NMEA_Reset            # GPS reset procedure for t-beam-v1.x
├─T3_SleepTest          
├─hardware_test         # Used to detect whether the hardware is normal
│  ├─H594_LoRaS3_1.0
│  ├─lora32_v1.0_433
│  ├─lora32_v1.0_868
│  ├─lora32_v1.0_915
│  ├─lora32_v1.3_868
│  ├─lora32_v1.3_915
│  ├─lora32_v2.0_433
│  ├─lora32_v2.0_868
│  ├─lora32_v2.0_915
│  ├─lora32_V2.1_433
│  ├─lora32_V2.1_868
│  ├─lora32_v2.1_915
│  ├─t-beam-v1.1
│  │  ├─SX1262
│  │  ├─SX1268
│  │  ├─SX1276
│  │  └─SX1278
│  ├─t-beam-v3.0
│  └─T3_V1.8_2.4G
└─ 

```

###  To write firmware, please check the corresponding link below

[Flash firmware in Mac OS](https://github.com/Xinyuan-LilyGO/LilyGo-Document/blob/master/MacFlashBin.md)

[Flash firmware in windows](https://github.com/Xinyuan-LilyGO/LilyGo-Document/blob/master/WinFlashBin.md)