It is called safe mode, we have an try in FAQ for that:
https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/faq.md
![[BK7231T] My HTTP server, configurator, MQTT support from Home Assistant [BK7231T] My HTTP server, configurator, MQTT support from Home Assistant](https://static2.elektroda.pl/img/preloader2.svg)
https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/faq.md
![[BK7231T] My HTTP server, configurator, MQTT support from Home Assistant [BK7231T] My HTTP server, configurator, MQTT support from Home Assistant](https://obrazki.elektroda.pl/2557368300_1694785821_thumb.jpg)
31_ota.ld
Debug/obj/uart_bk.o: In function `bk_printf':
C:\CodeProjects\OpenBK7231Tsdk\platforms\bk7231t\bk7231t_os/beken378/driver/uart/uart_bk.c:119: undefined reference to `__wrap_vsnprintf'
Debug/obj/role_launch.o: In function `rl_write_bssid_info':
C:\CodeProjects\OpenBK7231Tsdk\platforms\bk7231t\bk7231t_os/beken378/func/joint_up/role_launch.c:60: undefined reference to `__wrap_sprintf'
Debug/obj/ethernetif.o: In function `low_level_init':
C:\CodeProjects\OpenBK7231Tsdk\platforms\bk7231t\bk7231t_os/beken378/func/lwip_intf/lwip-2.1.3/port/ethernetif.c:140: undefined reference to `CFG_GetOpenBekenHostName'
C:\CodeProjects\OpenBK7231Tsdk\platforms\bk7231t\bk7231t_os/beken378/func/lwip_intf/lwip-2.1.3/port/ethernetif.c:144: undefined reference to `__wrap_sprintf'
Debug/obj/mem.o: In function `mem_overflow_check_raw':
C:\CodeProjects\OpenBK7231Tsdk\platforms\bk7231t\bk7231t_os/beken378/func/lwip_intf/lwip-2.1.3/src/core/mem.c:108: undefined reference to `__wrap_snprintf'
C:\CodeProjects\OpenBK7231Tsdk\platforms\bk7231t\bk7231t_os/beken378/func/lwip_intf/lwip-2.1.3/src/core/mem.c:119: undefined reference to `__wrap_snprintf'
Debug/obj/str_arch.o: In function `os_snprintf':
C:\CodeProjects\OpenBK7231Tsdk\platforms\bk7231t\bk7231t_os/beken378/os/str_arch.c:79: undefined reference to `__wrap_vsnprintf'
collect2.exe: error: ld returned 1 exit status
make[1]: *** [application.mk:778: application] Error 1
make[1]: Leaving directory '/cygdrive/c/CodeProjects/OpenBK7231Tsdk/platforms/bk7231t/bk7231t_os'
make: *** [Makefile:5: mp] Error 2
make: Leaving directory '/cygdrive/c/CodeProjects/OpenBK7231Tsdk/platforms/bk7231t/bk7231t_os'
./b.sh
./build_app.sh apps/template_demo template_demo 1.0.0