ESP32 Forum

Posted: **Sun Jun 13, 2021 12:28 am**

Hello. Trying to use OTA,

WiFiClient client;
t_httpUpdate_return ret = httpUpdate.update( client, "http://*******************/v1.bin");

anyway i got this error:

ELF file SHA256: 0000000000000000

Backtrace: 0x40094274:0x3ffbfd00 0x400944ed:0x3ffbfd20 0x401613b4:0x3ffbfd40 0x40090f2d:0x3ffbfd60 0x40085e05:0x3ffd2c20 0x400918e7:0x3ffd2c40 0x40091a46:0x3ffd2c60 0x4017f485:0x3ffd2c80 0x400e4bb1:0x3ffd2ca0 0x400e195c:0x3ffd2cc0 0x400e1bb3:0x3ffd2ce0 0x400e0d75:0x3ffd2d00 0x400e12f6:0x3ffd2d50 0x400e1535:0x3ffd2e40 0x400d57ca:0x3ffd2f00 0x400d5c74:0x3ffd2fa0 0x400d5f57:0x3ffd3040 0x400d6385:0x3ffd30c0 0x400954f2:0x3ffd3150

Rebooting...
ets Jul 29 2019 12:21:46

rst:0xc (SW_CPU_RESET),boot:0x13 (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:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:10124
load:0x40080400,len:5856
entry 0x400806a8

I am with v 1.06.
esptool is version 3.0 if this maters. ( not sure how to update it )

Posted: **Tue Jun 15, 2021 5:55 pm**

Update : If I try with a smaller app size - about 400 kb - the update passing and flashing, but my current app is 1260 kb, and it result this weird "ELF file SHA256: 0000000000000000". What could be the issue ?!

Posted: **Sun Jan 08, 2023 1:51 am**

Have you found any solution ?

Mine is doing the same:

- runs good for 30 - 40 seconds
- crashes with the same error message

Code: Select all

18:12:47.482 -> ELF file SHA256: 0000000000000000
18:12:47.482 -> 
18:12:47.482 -> 
	Backtrace: 
		0x4008f9cc:0x3ffc0fb0 
		0x4008fc45:0x3ffc0fd0 
		0x401853f0:0x3ffc0ff0 
		0x4008add9:0x3ffc1010 
		0x4019ff17:0x3ffbca80 
		0x40186d57:0x3ffbcaa0 
		0x40093081:0x3ffbcac0 
		0x400918d6:0x3ffbcae0
18:12:47.482 ->

- then restart

Posted: **Sun Feb 19, 2023 2:03 am**

I think that as easy as: power supply is too weak. You need a 2.1 amp / 5 V

ESP32 Forum

ELF file SHA256: 0000000000000000 ?

ELF file SHA256: 0000000000000000 ?

Re: ELF file SHA256: 0000000000000000 ?

Re: ELF file SHA256: 0000000000000000 ?

Re: ELF file SHA256: 0000000000000000 ?