Error for device Great-Will TR05

Error log:

2023-03-25 16:50:37  INFO: [T3c525552: gt06 < 177.25.211.143] 78780d01086508004295066300057c8f0d0a
2023-03-25 16:50:37  INFO: [T3c525552: gt06 > 177.25.211.143] 7878050100059ff80d0a
2023-03-25 16:50:39  INFO: [T3c525552: gt06 < 177.25.211.143] 78782717170319103209cd0228bf4404d179ed00580002d4177e510000974606600c02000000000244a20d0a
2023-03-25 16:50:39  INFO: [T3c525552] error - readerIndex(44) + length(1) exceeds writerIndex(44): PooledSlicedByteBuf(ridx: 44, widx: 44, cap: 44/44, unwrapped: PooledDirectByteBuf(ridx: 44, widx: 44, cap: 2048)) - IndexOutOfBoundsException (... < Gt06ProtocolDecoder:628 < *:1410 < ExtendedObjectDecoder:72 < ... < WrapperContext:102 < ...)

Another:

2023-03-25 16:49:06  INFO: [T70e01a0f: gt06 < 177.25.222.142] 79790020940a0865080042950663072423362052860389551095260221797808000461ec0d0a
2023-03-25 16:49:06  WARN: Failed to store position - Data truncation: Incorrect datetime value: '1970-01-01 00:00:00' for column 'fixtime' at row 1 - MysqlDataTruncation (... < QueryBuilder:469 < DatabaseStorage:95 < DefaultDataHandler:47 < ...)

I configured port as 5023.
Model device: Great-Will-TR05

I don't know if this port is correct.

What should I do?

Do you have the protocol documentation?

I don't have.
I searched online, but I didn't found.
I will ask the company about it.
Thanks so much.

The problem is that there are a lot of variations of GT06 protocol with small differences. Without the documentation it will be hard to support this one.

In this case, it is likely that this device won't work without a change in the traccar.
Right?
Because I am testing best device to work and maybe it is not a good choice.
Thanks Anton.

It seems like it won't work without server changes. It might be possible to implement support for basic GPS data, assuming that part matches other protocols. If you're interested in sponsoring that work, send us an email.

I have the same problem. Did you find a solution?