KC868-A6 with rst:0x10 (RTCWDT_RTC_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)

[kupak51]

I'm sorry for not being explicit enough.
The IDE I use is Ardino IDE 2.2.1. The hardware is KC868-A6 V1.3

I have been working with that IDE and that Hardware for a long time in the development of the application I am doing.

Everything was fine, until that error occurred.

ets Jul 29 2019 12:21:46
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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:1
load:0x3fff0030,len:1184
load:0x40078000,len:13260
load:0x40080400,len:3028
entry 0x400805e4
Fatal exception (0): IllegalInstruction
epc1=0x4007d567, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
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The error persists even if I load other sketches, even the basic Arduino example.

What I have done so far as tests:
Since I have another KC868-A6 Hardware, I replaced the one with the problem, with the new one, this new one does not have the fault.

I tested the program with a DEVKIT V1 (ESP32 WROOM 32), and I had no problem.

So I conclude that it is the first hardware that has an equipment failure.

Due to the type of application I am developing, I cannot allow it to fail due to faulty hardware.

What solutions can you provide me, or recommendations to continue using the KV868-A6, since it adapts very well to my needs.

Thanks.