The firmware does NOT work "flash read err"

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Mitchel
Posts: 3
Joined: Sun Jul 14, 2024 4:55 pm

The firmware does NOT work "flash read err"

Postby Mitchel » Sat Oct 05, 2024 8:07 am

After firmware, esp32-solo-1 outputs to the monitor
I didn't include any protections
In menuconfig all Security features off
The chip is new and has never been stitched

Code: Select all

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
flash read err, 1000
ets_main.c 371
I'm trying to reset efuse about the instructions

Code: Select all

....\esptool_py\esptool\espefuse.py burn_efuse FLASH_CRYPT_CNT --port COM13
espefuse.py v3.3.4-dev
Connecting...............
Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting....
Detecting chip type... ESP32

=== Run "burn_efuse" command ===
The efuses to burn:
  from BLOCK0
     - FLASH_CRYPT_CNT

Burning efuses:

    - 'FLASH_CRYPT_CNT' (Flash encryption mode counter) 0b0000001 -> 0b0000011

A fatal error occurred:         FLASH_CRYPT_CNT

Code: Select all

espefuse.py v3.3.4-dev
Connecting...................
Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting....
Detecting chip type... ESP32

=== Run "summary" command ===
EFUSE_NAME (Block) Description  = [Meaningful Value] [Readable/Writeable] (Hex Value)
----------------------------------------------------------------------------------------
Calibration fuses:
BLK3_PART_RESERVE (BLOCK0):                        BLOCK3 partially served for ADC calibration data   = False -/- (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                           = 57 R/W (0x39)
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                           = 50308 R/W (0xc484)
RD_DIS (BLOCK0):                                   Efuse read disable mask                            = 9 R/W (0x9)
CODING_SCHEME (BLOCK0):                            Efuse variable block length scheme
   = NONE (BLK1-3 len=256 bits) -/- (0b00)
KEY_STATUS (BLOCK0):                               Usage of efuse block 3 (reserved)                  = False -/- (0b0)

Identity fuses:
MAC (BLOCK0):                                      Factory MAC Address
   = 1c:9d:c2:e9:98:c8 (CRC 0xb7 OK) R/W
MAC_CRC (BLOCK0):                                  CRC8 for factory MAC address                       = 183 R/W (0xb7)
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                  = 0 R/W (0b00)
CHIP_PACKAGE (BLOCK0):                             Chip package identifier                            = 1 R/W (0b001)
CHIP_PACKAGE_4BIT (BLOCK0):                        Chip package identifier #4bit                      = False R/W (0b0)
MAC_VERSION (BLOCK3):                              Version of the MAC field                           = 0 R/W (0x00)

Security fuses:
FLASH_CRYPT_CNT (BLOCK0):                          Flash encryption mode counter                      = 1 R/- (0b0000001)
UART_DOWNLOAD_DIS (BLOCK0):                        Disable UART download mode (ESP32 rev3 only)       = False R/- (0b0)
FLASH_CRYPT_CONFIG (BLOCK0):                       Flash encryption config (key tweak bits)           = ? -/- (0x0)
CONSOLE_DEBUG_DISABLE (BLOCK0):                    Disable ROM BASIC interpreter fallback             = True R/- (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                                       = True R/- (0b1)
DISABLE_DL_ENCRYPT (BLOCK0):                       Disable flash encryption in UART bootloader        = True R/- (0b1)
DISABLE_DL_DECRYPT (BLOCK0):                       Disable flash decryption in UART bootloader        = True R/- (0b1)
DISABLE_DL_CACHE (BLOCK0):                         Disable flash cache in UART bootloader             = True R/- (0b1)
BLOCK1 (BLOCK1):                                   Flash encryption key
   = ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? -/-
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).
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nopnop2002
Posts: 112
Joined: Thu Oct 03, 2019 10:52 pm
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Re: The firmware does NOT work "flash read err"

Postby nopnop2002 » Tue Oct 08, 2024 11:29 pm

>The chip is new and has never been stitched

It looks like your chip has already been changed to Flash encryption mode.

Code: Select all

Security fuses:
FLASH_CRYPT_CNT (BLOCK0):                          Flash encryption mode counter                      = 1 R/- (0b0000001)
UART_DOWNLOAD_DIS (BLOCK0):                        Disable UART download mode (ESP32 rev3 only)       = False R/- (0b0)
FLASH_CRYPT_CONFIG (BLOCK0):                       Flash encryption config (key tweak bits)           = ? -/- (0x0)
CONSOLE_DEBUG_DISABLE (BLOCK0):                    Disable ROM BASIC interpreter fallback             = True R/- (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                                       = True R/- (0b1)
DISABLE_DL_ENCRYPT (BLOCK0):                       Disable flash encryption in UART bootloader        = True R/- (0b1)
DISABLE_DL_DECRYPT (BLOCK0):                       Disable flash decryption in UART bootloader        = True R/- (0b1)
DISABLE_DL_CACHE (BLOCK0):                         Disable flash cache in UART bootloader             = True R/- (0b1)
This is my Security fuses.

Code: Select all

Security fuses:
UART_DOWNLOAD_DIS (BLOCK0)                         Disable UART download mode. Valid for ESP32 V3 and = False R/W (0b0)
                                                    newer; only
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)
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)
KEY_STATUS (BLOCK0)                                Usage of efuse block 3 (reserved)                  = False R/W (0b0)
SECURE_VERSION (BLOCK3)                            Secure version for anti-rollback                   = 0 R/W (0x00000000)


More information about Flash encryption mode can be found here.
https://github.com/PBearson/ESP32_Flash ... n_Tutorial

>I'm trying to reset efuse about the instructions
Please read this about Disabling Flash Encryption.
https://docs.espressif.com/projects/esp ... e-failures
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Mitchel
Posts: 3
Joined: Sun Jul 14, 2024 4:55 pm

Re: The firmware does NOT work "flash read err"

Postby Mitchel » Fri Oct 11, 2024 5:20 pm

nopnop2002 wrote: Please read this about Disabling Flash Encryption.
https://docs.espressif.com/projects/esp ... e-failures
I followed the instructions and tried to reset FLASH_CRYPT_CNT

But it's write-protected, probably impossible.
Mitchel wrote: FLASH_CRYPT_CNT (BLOCK0): Flash encryption mode counter = 1 R/- (0b0000001)
thanks for the reply, I returned the batch to the seller
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