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v5.3.0 transport detection has no fallback when the port cannot be enumerated (virtualised serial devices) — stub upload then fails (ESPTOOL-1370)

Type: Bug

Status: Open.

#1181 In espressif/esptool;

· keithshawlab opened on Aug 17, 2026

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

Type: Bug

Status: Open.

#1170 In espressif/esptool;

· Daniel-Abdi opened on Jun 16, 2026

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

Type: Feature Request

Status: Open.

#1102 In espressif/esptool;

· shipljos opened on Jul 17, 2025

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

Type: Bug

Status: Open.

#1099 In espressif/esptool;

· j4k0xb opened on Jul 6, 2025

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

Type: Feature Request

Status: Open.

#1085 In espressif/esptool;

· RELOC-DEV opened on May 2, 2025

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

Type: Feature Request

Status: Open.

#903 In espressif/esptool;

· ESP32DE opened on Aug 1, 2023

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

Type: Bug

Status: Open.

#890 In espressif/esptool;

· wibbit opened on Jun 19, 2023

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

Type: Feature Request

Status: Open.

#861 In espressif/esptool;

· paravoid opened on Mar 18, 2023

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

Type: Feature Request

Status: Open.

#768 In espressif/esptool;

· HiGeek131 opened on Aug 12, 2022

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

Status: Open.

#423 In espressif/esptool;

· jeremyherbert opened on Apr 10, 2019

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

Status: Open.

#377 In espressif/esptool;

· bitmandu opened on Nov 20, 2018

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

esp32

Type: Feature Request

Status: Open.

#235 In espressif/esptool;

· projectgus opened on Sep 19, 2017