WB3L - Calex E27 A60 RGBCCT 429004.1 v2.0 Light Bulb

Hi, This is the dump of the bulb that once used to have an esp chip and be “tasmotizable”. I’ve dumped it with bk7231tools in it’s ‘virgin’ form as I haven’t connected to any tuya app yet. dump_calex_rgbcct_bulb.bin.zip

I’ve tried a couple of already existing profiles (Calex, Generic-Tuya, LSC) but all of them ended up with an error like this:

Using PSK v1 - Received PSK ID version 02
[W 220516 16:53:21 iostream:1406] SSL Error on 12 ('10.42.42.23', 49154): [SSL: DECRYPTION_FAILED_OR_BAD_RECORD_MAC] decryption failed or bad record mac (_ssl.c:1129)

Let me know if I should dump the bin after I connect it to a tuya server as well.

Thanks!!! 😃

[troy-f]

@khalednassar dissection fails on this bin RBL containers: 0x10f9a: bootloader - [encoding_algorithm=NONE, size=0xe470] Traceback (most recent call last): File "bk7231tools.py", line 279, in <module> args.handler(args) File "bk7231tools.py", line 189, in dissect_dump_file output_directory=output_directory, extract=args.extract, with_rbl=args.rbl) File "bk7231tools.py", line 89, in __carve_and_write_rbl_containers fsout.write(__decrypt_code_partition(partition, container.payload)) File "bk7231tools.py", line 51, in __decrypt_code_partition return cipher.decrypt(payload, partition.mapped_address) File "/root/bk7231tools/bk7231tools/crypto/code.py", line 70, in decrypt return self.encrypt(data, stream_start_offset=stream_start_offset) File "/root/bk7231tools/bk7231tools/crypto/code.py", line 59, in encrypt raise ValueError(f"Given data length {len(data)} is not a multiple of block length {self.BLOCK_LENGTH_BYTES}") ValueError: Given data length 58480 is not a multiple of block length 32

[ihrapsa]

Thanks a lot for the profile. It works! 🙂