normal flash boot log
Baud rate 74880 is what the ESP8266 bootloader uses. The apps on top of the Espressif SDK (e.g. Arduino sketch) talk at 115200 if not specified otherwise.
*the normal reset boot * == CORRECT
ets Jan 8 2013,rst cause:2, boot mode:(3,6)
load 0x40100000, len 28740, room 16
tail 4
chksum 0xef
load 0x33333333, len 858993459, room 4
boot mode:(3,6) → GPIO0 is LOW (indicating flash mode, not normal run mode). This means the ESP8266 is still in flashing mode, and won't run user code.
the prog mode boot
flash boot mode
ets Jan 8 2013,rst cause:2, boot mode:(1,6)
ets Jan 8 2013,rst cause:2, boot mode:(1,7)

download mode
ets Jan 8 2013,rst cause:2, boot mode:(1,6)
or
rl\0l湠|\0宭鄚?l?b|巶?抮抌?b岒nn瀕nn溾?bpp寧lrlrl
module default boot log
ets Jan 8 2013,rst cause:2, boot mode:(3,6)
load 0x40100000, len 1856, room 16
tail 0
chksum 0x63
load 0x3ffe8000, len 776, room 8
tail 0
chksum 0x02
load 0x3ffe8310, len 552, room 8
tail 0
chksum 0x79
csum 0x79
2nd boot version : 1.5
SPI Speed : 40MHz
SPI Mode : DIO
SPI Flash Size & Map: 32Mbit(512KB+512KB)
jump to run user1 @ 1000
AIT firmware bootload mode
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Ai-Thinker Technology Co. Ltd.
ready
or in 74880 baud rate output
2nd boot version : 1.5
SPI Speed : 40MHz
SPI Mode : DIO
SPI Flash Size & Map: 32Mbit(512KB+512KB)
jump to run user1 @ 1000
rf[112] : 03
rf[113] : 00
rf[114] : 01
SDK ver: 1.5.4(baaeaebb) compiled @ May 17 2016 19:23:54
phy ver: 972, pp ver: 10.1
mode : softAP(46:17:93:0a:04:4d)
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
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rf[113] : 00
rf[114] : 01
SDK ver: 1.5.4(baaeaebb) compiled @ May 17 2016 19:23:54
phy ver: 972, pp ver: 10.1
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custom flash firmware
rl\0l湠|\0宭鄚?l?b|巶?抮抌?b岒nn瀕nn溾?bp寧lrlrlp騨??l寽bn鈢l?巄岒nn頫0l寧l`?nnl`nr帓抧b?lr拻nb?l?l寽?l宭`鼈n?
mounting FS...
mounted file system
read your my_device ID ESP_574524 from json
*WM: Adding parameter
*WM: server
*WM: Adding parameter
*WM: port
*WM: Adding parameter
*WM: user
*WM: Adding parameter
*WM: pass
*WM: Adding parameter
*WM: my_device
*WM:
*WM: AutoConnect
*WM: Connecting as wifi client...
*WM: Using last saved values, should be faster
*WM: Connection result:
*WM: 0
*WM: SET AP STA
*WM:
*WM: Configuring access point...
*WM: ESP_Relay_Board
*WM: AP IP address:
*WM: 192.168.4.1
*WM: HTTP server started