I'm trying to flash a BL602C20 (from a basic RGBW controller) with Openbeken.
It's connected via an USB-Serial adapter and powered by an additional AMS1117-3,3V to ensure stable power supply.
I can write the bootloader fine, but erasing to write the firmware fails every time. I tried different baud rates, too. Using the BK7231 Easy UART Flasher tool.
Here's the output:
Any ideas please?
Edit: Solved... I tried with the BLDevCube app and it worked first try.
It's connected via an USB-Serial adapter and powered by an additional AMS1117-3,3V to ensure stable power supply.
I can write the bootloader fine, but erasing to write the firmware fails every time. I tried different baud rates, too. Using the BK7231 Easy UART Flasher tool.
Here's the output:
Now is: Wednesday, 31 December 2025 13:31:57.
Flasher mode: BL602
Going to open port: COM7.
Port ready!
Sync attempt 0/1000 ... OK!
Command fail!
Flash ID: 5E401580
Flash size is 2MB
Eflash loader is already uploaded!
Writing boot...
Erasing from 0x0 to 0x10000
Erase pending...
Starting flash write 65536
.0..4092..8184..12276..16368..20460..24552..28644..32736..36828..40920..45012..49104..53196..57288..61380..65472.
Hash matches 330D7EBF8709EB425BE083DEC50DA987399B363AA7C1E87132B2A629AB05BCC4!
Done flash write 65536
Reading firmwares/OpenBL602_1.18.233.bin...
Erasing from 0x10000 to 0xCE000
Erase pending...
Erase pending...
Erase pending...
Erase pending...
Erase pending...
Unknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, PUnknown response, DUnknown response, OUnknown response, KAny ideas please?
Edit: Solved... I tried with the BLDevCube app and it worked first try.
