User's Manual

https://www.cnthinkpower.com
data
meaning
1
01
Message type
2
02
Packet identifier
3
002C
Payload length
4
01
Protocol major version
5
06
Protocol minor version
6
0F
IMEI length
7
383637373330303531393933353738
IMEI(867730051993578)
8
06
Model length
9
544C39303441
Model(TL904A)
10
11
Firmware version length
11
522D312E302E32382E3230323130393330
Firmware version(R-
1.0.28.20210930)
12
00
Password length
13
798A
CRC-16-CCITT
Ex2:05590012016108E72A010D743C8843EB47D20000000032B4
Message type:
①
Packet identifier:
②
Payload length:
③
Payload data:
④,⑤,⑥,⑦
CRC-16-CCITT:
⑧
The data is decomposed and parsed in order:
data
meaning
①
05
Message type
②
59
Packet identifier
③
0012
Payload length