Repeat RTCWDT_RTC_RESET issue

[axellin]

Hi
One of my esp32-wroom-32E device hit below issue.
Can someone help to tell what was wrong?
(The device was working yesterday, not sure what's wrong. it keep rebooting now).

rst:0x10 (RTCWDT_RTC_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:528
load:0x40078000,len:12888
load:0x40080400,len:3180
0x40080400: _init at ??:?

csum err:0x5d!=0x2c
ets_main.c 384
ets Jul 29 2019 12:21:46

rst:0x10 (RTCWDT_RTC_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:528
load:0x40078000,len:12888
load:0x40080400,len:3180
0x40080400: _init at ??:?

csum err:0x5d!=0x2c
ets_main.c 384
ets Jul 29 2019 12:21:46

rst:0x10 (RTCWDT_RTC_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:528
load:0x40078000,len:12888
load:0x40080400,len:3180
0x40080400: _init at ??:?

csum err:0x5d!=0x2c
ets_main.c 384
ets Jul 29 2019 12:21:46

[axellin]

The device works after reflash application firmware.
But I'm wondering if this device is OK or something is already damaged?
Does "csum err" mean part of the hw is damaged?

[ESP_Sprite]

Csum err generally means that the application in flash is corrupted somehow.