B05-BL-A60 Sonoff Teardown

did you backup original firmware before flashing?

that 'single download option' should not be used with the release binary, it is for flashing back full bootable flash files/backups.

If you can get Easy Flasher running in your OS (Mono?) then you can do the whole lot within Easy Flasher https://github.com/divadiow/BK7231GUIFlashTool

no, i've no backup, but i've others new bulb...
i'm a little bit lost...
with BL602 we don't use lab dev cube software ?
i've try to flash bulb with easyguiflashtool but i've always problem to enter flash mode
(i've allready flash lsc action plug whitout problem...)

Added after 4 [minutes]:

i've try with https://openshwprojects.github.io/EasyGUIFlashTool/
and that's the logs "Unsupported operation: _newZLibInflateFilter" :

[18:47:50] Opened file: OpenBL602_1.18.270.bin (776676 bytes)
[18:47:50] Saved firmware: OpenBL602_1.18.270.bin
[18:48:02] Port opened at 9600 baud.
[18:48:08] === Sunday, 2026-03-08 ===
[18:48:08] === Web, flasher built on 2026-02-24 15:47 #52 ===
[18:48:08] === Starting Firmware Write on port ? ===
[18:48:08] Platform: BL602
[18:48:08] Firmware: OpenBL602_1.18.270.bin
[18:48:08] Loading firmware: OpenBL602_1.18.270.bin ...
[18:48:08] Firmware loaded: 776676 bytes
[18:48:08] Now is: 2026-03-08 18:48:08.
[18:48:08] Flasher mode: BL602
[18:48:08] Going to open port.
[18:48:08] Port ready!
[18:48:08] Attempting DTR/RTS auto-reset into boot mode...
[18:48:09] Sync attempt 0/1000
[18:48:09] ... OK!
[18:48:09] BootROM version: 1 (1)
OTP flags:
00000000 00000000 00000000 00000000
00000011 00000000 00000000 00000000
00111101 10011101 10000010 01001100
10111001 01111100 00010111 00000000
Chip type: BL602
[18:48:09] Unsupported operation: _newZLibInflateFilter
[18:48:09] Write operation finished.

you can use BLDevCube, it's just slightly easier with Easy Flasher

for BLDC this needs to be the config type with these files selected:



use the .toml file from here https://www.elektroda.com/rtvforum/topic4126885.html#21583616

thank a lot !
i'll try and back to give the result ....

Added after 11 [minutes]:

ok, i've installed mono on ubuntu 20.04
and now the result ...
the boot pin is high, what more can I do?

Backup name has not been set, so output file will only contain flash type/date.
Now is: Sunday, 08 March 2026 19:11:37.
Flasher mode: BL602
Going to open port: /dev/ttyUSB0.
Port ready!
Sync attempt 0/1000 ... failed, will retry!
Sync attempt 1/1000 ... failed, will retry!
If doing something immediately after another operation, it might not sync for about half a minute
Otherwise, please pull high BOOT/IO8 and reset.
Sync attempt 2/1000 ... failed, will retry!
Sync attempt 3/1000 ... failed, will retry!
Sync attempt 4/1000 ... failed, will retry!
Sync attempt 5/1000 ... failed, will retry!

what baud? tried others?

Many many thanks !
with your screenshot i've sucessfully flashed sonoff B05-BL-A19 bulb with DevCube
now all is working fine...
have a good day !

Added after 14 [minutes]:

ok, again one thing to resolve...
color are not OK, when i choose green on web i've blue on bulb, and all others colors are mixed...

thank again

I think you'd benefit a lot from reading the full topic and guide. Look, I think this hint may help with swapped colors order:

p.kaczmarek2 wrote:

https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/commands.md LED_Map command

>>21857957 it's OK now,
i've use this command BP5758D_Map 2 1 0 3 4
last thing i've checked flag 12 but light don't keep brightness or color when reboot

regards

Added after 45 [minutes]:

it's strange in startup menu i've no possibility to change values...

Hello
could you explain how using BP5758D_Current command ?
number are they Hex or decimal ? and how limit the current ?
thank a lot