We have used ESP32-WROVER module into one of our Inverter based product in which it was working fine till few days.
But, Suddenly we are getting following issues of board restart issue from boot loader side
So, We are completely stuck due to above issues and only recovered after erasing complete flash only.[2022-01-20 10:45:27.931] ets Jul 29 2019 12:21:46
[2022-01-20 10:45:27.931]
[2022-01-20 10:45:27.931] rst:0x10 (RTCWDT_RTC_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
[2022-01-20 10:45:27.931] configsip: 0, SPIWP:0xee
[2022-01-20 10:45:27.931] clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
[2022-01-20 10:45:27.931] mode:DOUT, clock div:2
[2022-01-20 10:45:27.931] load:0x3fff0018,len:4
[2022-01-20 10:45:27.931] load:0x3fff001c,len:5796
[2022-01-20 10:45:27.931] load:0x40078000,len:7756
[2022-01-20 10:45:27.931] load:0x40080000,len:5876
[2022-01-20 10:45:27.931] csum err:0xb3!=0xab
[2022-01-20 10:45:27.931] ets_main.c 384
[2022-01-20 10:45:27.947] ets Jul 29 2019 12:21:46
[2022-01-20 10:45:27.947]
[2022-01-20 10:45:27.947] rst:0x10 (RTCWDT_RTC_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
[2022-01-20 10:45:27.947] configsip: 0, SPIWP:0xee
[2022-01-20 10:45:27.947] clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
[2022-01-20 10:45:27.947] mode:DOUT, clock div:2
[2022-01-20 10:45:27.947] load:0x3fff0018,len:4
[2022-01-20 10:45:27.947] load:0x3fff001c,len:5796
[2022-01-20 10:45:27.947] load:0x40078000,len:7756
[2022-01-20 10:45:27.947] load:0x40080000,len:5876
[2022-01-20 10:45:27.947] csum err:0xa3!=0xab
[2022-01-20 10:45:27.947] ets_main.c 384
[2022-01-20 10:45:27.947] ets Jul 29 2019 12:21:46
[2022-01-20 10:45:27.947]
[2022-01-20 10:45:27.947] rst:0x10 (RTCWDT_RTC_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
[2022-01-20 10:45:27.947] configsip: 0, SPIWP:0xee
[2022-01-20 10:45:27.947] clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
[2022-01-20 10:45:27.947] mode:DOUT, clock div:2
[2022-01-20 10:45:27.947] load:0x3fff0018,len:4
[2022-01-20 10:45:27.947] load:0x3fff001c,len:5796
[2022-01-20 10:45:27.947] load:0x40078000,len:7756
[2022-01-20 10:45:27.947] load:0x40080000,len:5876
[2022-01-20 10:45:27.947] csum err:0x23!=0xab
[2022-01-20 10:45:27.947] ets_main.c 384
[2022-01-20 10:45:27.947] ets Jul 29 2019 12:21:46
[2022-01-20 10:45:27.947]
[2022-01-20 10:45:27.947] rst:0x10 (RTCWDT_RTC_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
[2022-01-20 10:45:27.947] configsip: 0, SPIWP:0xee
[2022-01-20 10:45:27.947] clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
[2022-01-20 10:45:27.947] mode:DOUT, clock div:2
[2022-01-20 10:45:27.947] load:0x3fff0018,len:4
[2022-01-20 10:45:27.947] load:0x3fff001c,len:5796
[2022-01-20 10:45:27.947] load:0x40078000,len:7756
[2022-01-20 10:45:27.947] load:0x40080000,len:5876
[2022-01-20 10:45:27.963] csum err:0xa3!=0xab
[2022-01-20 10:45:27.963] ets_main.c 384
[2022-01-20 10:45:27.963] ets Jul 29 2019 12:21:46
does anyone has idea like what can be the issue as i have mentioned above? Most probably it is due to power fluctuation due to which some or few section of flash memory has been corrupted but that was recovered after erasing whole flash memory.