Flash Modes Database

Quad modes (QIO and QOUT) need GPIO 9 and 10. If device uses GPIO 9 or 10 with any function, possibles modes will be only DOUT and DIO.

All devices with an ESP8285 chip supports only DOUT mode because flash is integrated into ESP chip.

Device	Flash ID	Fastest Mode
ESP8285 chips	All	DOUT
ESP-01S	14325e	DOUT
ESP-01S	14301c	Unknown
ESP-01S	14605e	QIO
ESP-01S	1460ba	DOUT
ESP-01S	1640ef	QIO
ESP-12F	1540c8	Unknown
ESP-12F	16400e	QIO
ESP-12F	164020	QIO
ESP-12F	16405e	QIO
ESPDuino	1640e0	QIO
Gosund SP111 v1.1	144051	Unknown
Gosund SP211	144051	Unknown
Teckin SP22	1440a1	QIO
Shelly	1540ef	QIO
Shelly	15701c	QOUT
Shelly	1620c2	Unknown
Wemos	1640c8	DIO