Chapter 2. Development environment
2.4.17 The encrypted device cannot be re-flashed via the flash download tool. What could
be the reason?
CHIP: ESP32 | ESP32-S2
• Currently, an encrypted device cannot be flashed again using the
supports one-time encryption of plaintext.
2.4.18 When updating ESP32 firmware through UART interface based on esptool serial
port protocol, can I add a new app partation?
• The partitions in flash depend on the data in partition_table.bin. If partition_table.bin can be updated, the
storage space of other data, such as bootloader.bin and app.bin, can be redivided to create an app partition.
2.4.19 I am using ESP8266 to download the firmware via flash download tool. After
downloading the firmware, there is no programming output log, and the serial
port printed the following messages. What could be the reason?
ets Jan
8
2013,rst cause:1, boot
ets_main.c
• Please check whether the hardware wiring is correct. See
• Please check whether the download offset address of bootloader.bin is correct. The offset
address downloaded from bootloader.bin of ESP8266 is "0x0". If the offset address is
wrong, the flash cannot be started.
2.4.20 Why does my USB driver failed to be recognized by the Windows7 system?
• Please download and install the USB Serial JTAG driver <https://dl.espressif.com/dl/idf-driver/idf-driver-esp32-
usb-jtag-2021-07-15.zip> manually for the Windows7 system.
2.4.21 After using the ESP32-WROVER-E module to download the program, the follow-
ing log is printed after powered on. What could be the reason?
rst:0x10 (RTCWDT_RTC_RESET) ,boot:0x37(SPI_FLASH_BOOT)
【2020-12-11 15:51:42 049】invalrd header:0xffffffff
invalrd header:0xffffffff
invalrd header:0xffffffff
• Generally, it is because the GPIO12 was pulled high. It is recommended to pull it low and see the
results. Please see
2.4.22 When using the Flash Download Tools to flash ESP32-C3 via USB, 8-download
data fail occurs repeatedly. How can I solve it?
• Please erase the chip completely first before flashing
• This problem has been solved in V3.9.4 and above versions
Espressif Systems
mode:(3,7)
ESP32 Boot Log
Guide.
21
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flash download
tool. It only
Boot mode wiring
instructions.
Release master
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Do you have a question about the ESP and is the answer not in the manual?