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ESP32-S3 Hard resetting RTC WDT

Posted: Sat May 31, 2025 12:05 am
by lsheaf
Hey guys

I just had a new board made with an ESP32-S3. I've tried everything practical but I keep getting

Leaving...

Hard resetting with RTC WDT...

and serial monitor is spazzing out with "no bootable app partition"

I'm completely lost at this point.


mode:DIO, clock div:1


load:0x3fce2820,len:0x118c


load:0x403c8700,len:0x4


load:0x403c8704,len:0xc20


load:0x403cb700,len:0x30e0


entry 0x403c88b8


E (26) boot: No bootable app partitions in the partition table

Re: ESP32-S3 Hard resetting RTC WDT

Posted: Sat May 31, 2025 7:22 am
by Sprite
Did you flash anything to the chip?

Re: ESP32-S3 Hard resetting RTC WDT

Posted: Mon Jun 02, 2025 11:42 pm
by lsheaf
Did you flash anything to the chip?
Yes I flashed it multiple times and different ways. Using esptool app and online web version.
I have a feeling this is simple but I've never seen this before.

Re: ESP32-S3 Hard resetting RTC WDT

Posted: Sat Jun 07, 2025 11:50 am
by Sprite
Maybe you're only flashing the app to the ESP32? You need to also flash the secondary bootloader and the partition table.

Re: ESP32-S3 Hard resetting RTC WDT

Posted: Sat Jun 21, 2025 8:16 pm
by lsheaf
Okay so i fixed the no bootable partitions error. I'm getting a hard resetting vis RTS pin now with no code output on the serial.
I've tried various different USB-C cables with the same results.