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Keeps crashing

2026-04-01 08:54:51 Ask

Following your instructions I end up with a boot loop after flashing the astronaut sample:


02:53:53.110 -> ELF file SHA256: 6d78fd7cb

02:53:53.110 ->

02:53:53.210 -> Rebooting...

02:53:53.210 -> ⸮⸮⸮ESP-ROM:esp32s3-20210327

02:53:53.210 -> Build:Mar 27 2021

02:53:53.210 -> rst:0xc (RTC_SW_CPU_RST),boot:0x8 (SPI_FAST_FLASH_BOOT)

02:53:53.210 -> Saved PC:0x4037b61a

02:53:53.210 -> SPIWP:0xee

02:53:53.243 -> mode:DIO, clock div:1

02:53:53.243 -> load:0x3fce2820,len:0x1188

02:53:53.243 -> load:0x403c8700,len:0x4

02:53:53.243 -> load:0x403c8704,len:0xbf0

02:53:53.243 -> load:0x403cb700,len:0x30e4

02:53:53.243 -> entry 0x403c88ac

02:53:53.607 -> Guru Meditation Error: Core  1 panic'ed (StoreProhibited). Exception was unhandled.

02:53:53.673 ->

02:53:53.673 -> Core  1 register dump:

02:53:53.673 -> PC      : 0x42007970  PS      : 0x00060b30  A0      : 0x82001e49  A1      : 0x3fcb5d30  

02:53:53.673 -> A2      : 0x3fc9ce0c  A3      : 0x3fcb1e30  A4      : 0x3fcb5cd8  A5      : 0x00000001  

02:53:53.673 -> A6      : 0x00000000  A7      : 0x3fcb5ea8  A8      : 0x00000010  A9      : 0x08000000  

02:53:53.673 -> A10     : 0x3fca5db8  A11     : 0x019bfcc0  A12     : 0x3fcb0001  A13     : 0x00000000  

02:53:53.706 -> A14     : 0x3fca6d1c  A15     : 0x019bfcc0  SAR     : 0x0000000e  EXCCAUSE: 0x0000001d  

02:53:53.706 -> EXCVADDR: 0x00000010  LBEG    : 0x40056f5c  LEND    : 0x40056f72  LCOUNT  : 0xffffffff  

02:53:53.706 ->

02:53:53.706 ->

02:53:53.706 -> Backtrace: 0x4200796d:0x3fcb5d30 0x42001e46:0x3fcb5d60 0x420d90a5:0x3fcb5d80 0x42018e81:0x3fcb5db0 0x42019711:0x3fcb5e80 0x4202c9ea:0x3fcb5ed0 0x42002776:0x3fcb5f00 0x4200552f:0x3fcb5f20 0x4203a273:0x3fcb5f50 0x4037f2ba:0x3fcb5f70

02:53:53.739 ->


2answers
SpotPearGuest35534
Answer time:
2026-04-01 15:13:58

Hello, please try changing the tools configuration of your Arduino IDE as shown in the picture.

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SpotPearUser3465
Answer time:
2026-04-03 10:25:28

That boot loop looks frustrating! I've seen similar issues with the ESP32S3 after flashing. It might be worth checking your board configuration in the flashing tool, making sure it matches your actual hardware. Also, sometimes a fresh re-download of the astronaut sample can help, just in case the original file was corrupted somehow. This sounds like the kind of problem even my Granny would struggle to diagnose, so don't feel too bad! Hope you get it sorted soon.

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