ESP8285 cannot run into user.bin sometimes

[Nicholas3388]

Hi, My ESP8285 sometimes cannot run into user2.bin when the firmware is upgraded via FOTA. The logs are as follow:

ets Jan 8 2013,rst cause:2, boot mode:(3,0)

load 0x40100000, len 2592, room 16
tail 0
chksum 0xf3
load 0x3ffe8000, len 764, room 8
tail 4
chksum 0x92
load 0x3ffe82fc, len 676, room 4
tail 0
chksum 0x22
csum 0x22

2nd boot version : 1.7(5d6f877)
SPI Speed : 40MHz
SPI Mode : DOUT
SPI Flash Size & Map: 8Mbit(512KB+512KB)
jump to run user2 @ 81000

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As you can see from the logs, the system is about to jump to user2, and then crash immediately and stop running. When I reboot the device by pressing the reset button manually, it will run without problem. This issue happen sometimes. Is there anyone know how to handle this issue?

[Her Mary]

The same user2.bin, sometimes it runs successfully, sometimes it fails? Maybe the log of success running can tell something.

[AgentSmithers]

Are you running Firmware over the air?