Issues

• Fast reflashing without --diff-with: find changed sectors by hashing flash on the device (ESPTOOL-1397)

  espressif/esptool#1193 · Filter by author nebkat opened on Oct 2, 2026
  2

• Relatively slow flashing of 64MB flash (ESP32-P4 rev 1.3) (ESPTOOL-1339)

  Type: Bug
  espressif/esptool#1170 · Filter by author Daniel-Abdi opened on Jun 16, 2026
  6

• Flashing multiple esp chips at the same time with progress (ESPTOOL-1104)

  Type: Feature Request
  espressif/esptool#1102 · Filter by author shipljos opened on Jul 17, 2025
  13

• espefuse burn_key doesn't get saved in virtual mode (ESPTOOL-1094)

  Type: Bug
  espressif/esptool#1099 · Filter by author j4k0xb opened on Jul 6, 2025
  10

• Support for 32-bit addresing with external SPI flash chips (ESPTOOL-1061)

  Type: Feature Request
  espressif/esptool#1085 · Filter by author RELOC-DEV opened on May 2, 2025
  11

• Make the addition of support for new flash chips easier (ESPTOOL-719)

  Type: Feature Request
  espressif/esptool#903 · Filter by author ESP32DE opened on Aug 1, 2023
  4

• esptool fails to write to ESP8266 with PUYA flash chip - The chip stopped responding (ESPTOOL-699)

  Type: Bug
  espressif/esptool#890 · Filter by author wibbit opened on Jun 19, 2023
  18

• License and sources for binaries in test/ (ESPTOOL-650)

  Type: Feature Request
  espressif/esptool#861 · Filter by author paravoid opened on Mar 18, 2023
  2

• Add octal flash mode support to --flash_mode (ESPTOOL-499)

  Type: Feature Request
  espressif/esptool#768 · Filter by author HiGeek131 opened on Aug 12, 2022

• Supply encryption key to write_flash --encrypt (ESPTOOL-133)

  espressif/esptool#423 · Filter by author jeremyherbert opened on Apr 10, 2019
  5

• Shouldn't esptool provide map for system_partition_table_regist()? (ESPTOOL-138)

  espressif/esptool#377 · Filter by author bitmandu opened on Nov 20, 2018

• Support uploading over UART1 with flasher stub (ESPTOOL-118)

  esp32Type: Feature Request
  espressif/esptool#235 · Filter by author projectgus opened on Sep 19, 2017
  3

• Verify flash speed & mode as part of write_flash (ESPTOOL-119)

  Type: Feature Request
  espressif/esptool#228 · Filter by author projectgus opened on Sep 7, 2017

• Flashing ESP8266 HSPI Flash (ESPTOOL-141)

  esp8266Type: Feature Request
  espressif/esptool#98 · Filter by author sskylark opened on Mar 27, 2016
  7