Unable to flash firmware

[Fredckx]

Hi I have a Heltec Lora32 board that worked fine until now. When I now want to flash firmware with idf.py -p COM3 flash I get a "A fatal error occurred: Timed out waiting for packet content". I read somewhere that more info about the root cause can possibly be obtained via the command "espefuse.py --port COM3 summary". I did this, but I don't know how to interprete the output. Can someone please help me out. Here is the output:

Connecting....
Detecting chip type... ESP32
espefuse.py v3.0
EFUSE_NAME (Block) Description = [Meaningful Value] [Readable/Writeable] (Hex Value)
----------------------------------------------------------------------------------------
Calibration fuses:
BLK3_PART_RESERVE (BLOCK0): BLOCK3 partially served for ADC calibration data = False R/W (0b0)
ADC_VREF (BLOCK0): Voltage reference calibration = 1107 R/W (0b00001)

Config fuses:
XPD_SDIO_FORCE (BLOCK0): Ignore MTDI pin (GPIO12) for VDD_SDIO on reset = False R/W (0b0)
XPD_SDIO_REG (BLOCK0): If XPD_SDIO_FORCE, enable VDD_SDIO reg on reset = False R/W (0b0)
XPD_SDIO_TIEH (BLOCK0): If XPD_SDIO_FORCE & XPD_SDIO_REG = 1.8V R/W (0b0)
CLK8M_FREQ (BLOCK0): 8MHz clock freq override = 50 R/W (0x32)
SPI_PAD_CONFIG_CLK (BLOCK0): Override SD_CLK pad (GPIO6/SPICLK) = 0 R/W (0b00000)
SPI_PAD_CONFIG_Q (BLOCK0): Override SD_DATA_0 pad (GPIO7/SPIQ) = 0 R/W (0b00000)
SPI_PAD_CONFIG_D (BLOCK0): Override SD_DATA_1 pad (GPIO8/SPID) = 0 R/W (0b00000)
SPI_PAD_CONFIG_HD (BLOCK0): Override SD_DATA_2 pad (GPIO9/SPIHD) = 0 R/W (0b00000)
SPI_PAD_CONFIG_CS0 (BLOCK0): Override SD_CMD pad (GPIO11/SPICS0) = 0 R/W (0b00000)
DISABLE_SDIO_HOST (BLOCK0): Disable SDIO host = False R/W (0b0)

Efuse fuses:
WR_DIS (BLOCK0): Efuse write disable mask = 0 R/W (0x0000)
RD_DIS (BLOCK0): Efuse read disable mask = 0 R/W (0x0)
CODING_SCHEME (BLOCK0): Efuse variable block length scheme
= NONE (BLK1-3 len=256 bits) R/W (0b00)
KEY_STATUS (BLOCK0): Usage of efuse block 3 (reserved) = False R/W (0b0)

Identity fuses:
MAC (BLOCK0): Factory MAC Address
= e0:e2:e6:01:5d:40 (CRC 0x23 OK) R/W
MAC_CRC (BLOCK0): CRC8 for factory MAC address = 35 R/W (0x23)
CHIP_VER_REV1 (BLOCK0): Silicon Revision 1 = True R/W (0b1)
CHIP_VER_REV2 (BLOCK0): Silicon Revision 2 = False R/W (0b0)
CHIP_VERSION (BLOCK0): Reserved for future chip versions = 2 R/W (0b10)
CHIP_PACKAGE (BLOCK0): Chip package identifier = 0 R/W (0b000)
MAC_VERSION (BLOCK3): Version of the MAC field = 0 R/W (0x00)

Security fuses:
FLASH_CRYPT_CNT (BLOCK0): Flash encryption mode counter = 0 R/W (0b0000000)
UART_DOWNLOAD_DIS (BLOCK0): Disable UART download mode (ESP32 rev3 only) = False R/W (0b0)
FLASH_CRYPT_CONFIG (BLOCK0): Flash encryption config (key tweak bits) = 0 R/W (0x0)
CONSOLE_DEBUG_DISABLE (BLOCK0): Disable ROM BASIC interpreter fallback = True R/W (0b1)
ABS_DONE_0 (BLOCK0): Secure boot V1 is enabled for bootloader image = False R/W (0b0)
ABS_DONE_1 (BLOCK0): Secure boot V2 is enabled for bootloader image = False R/W (0b0)
JTAG_DISABLE (BLOCK0): Disable JTAG = False R/W (0b0)
DISABLE_DL_ENCRYPT (BLOCK0): Disable flash encryption in UART bootloader = False R/W (0b0)
DISABLE_DL_DECRYPT (BLOCK0): Disable flash decryption in UART bootloader = False R/W (0b0)
DISABLE_DL_CACHE (BLOCK0): Disable flash cache in UART bootloader = False R/W (0b0)
BLOCK1 (BLOCK1): Flash encryption key
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK2 (BLOCK2): Secure boot key
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK3 (BLOCK3): Variable Block 3
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W

Flash voltage (VDD_SDIO) determined by GPIO12 on reset (High for 1.8V, Low/NC for 3.3V).

[ESP_Sprite]

I don't think espefuse helps you here, but the fact that it works while esptool does not indicates something... I'd say the flash in your module may not be working properly. Is there anything connected to the module?