Appliance:2RES1VE61NFA2

Brand name: LG Side by Side Refrigerator Official model name: GSJV71PZTE
ThinQ Model ID: 2RES1VE61NFA2
Platform: Thinq2

This is a fridge/freezer.

It communicates with the "AABB" protocol. The specifics are quite similar to the other fridge

Common structures

Status block

Several packets contain a 27-byte block describing the appliance's state.

All bytes have been at least partially identified, although not all of them seem to be used by this model. This would suggest that the same structure might be used for a more capable fridge as well.

Some field names are based on raw JSON responses from the API used by the official LG ThinQ app.

byte index (zero-based)	field	description
0	monStatus	exact meaning unknown 0=FAIL 1=NOT_WORK 2=NORMAL
1	fridge setpoint	Celsius mode: value = 8 - degreesCelsius Fahrenheit mode: value = 44 - degreesFahrenheit
2	freezer setpoint	Celsius mode: value = -14 - degreesCelsius Fahrenheit mode: value = 6 - degreesFahrenheit
3	express freeze	1=off 2=on
4	fresh air filter	1=off 2=auto 3=power 4=replace 5=smart_storage_power 6=smart_storage_off 7=smart_storage_on
5	smart saving mode	1=night_on 2=smartgrid_dd_on 3=smartgrid_dr_on
6	water filter	measured in months ?
7	any door open	1=any open 0=all closed
8	temperature unit	0=fahrenheit 1=celsius
9	smartSavingRun	0=stop 1=run
10	display lock	1=unlock 2=lock
11	active saving	might not be used in this model
12	ecoFriendly	might not be used in this model
13	flex drawer setpoint	not used in this model
14	sabbath mode	0=ff 1=on
15	dual fridge mode	not used in this model
16	express cool	0=off 1=on
17	smart care v2	0=off 1=on the app exposes this as "smart learner mode" ?
18	drawer mode	not used in this model
19	pantry mode	not used in this model
20	voice mode	not used in this model
21	dispenser mode	not used in this model
22	dispenser capacity	not used in this model
23	dispenser unit	not used in this model
24	self care mode	might not be used in this model
25	craftIceMode	0=off 1=3_ice 2=off ?
26	monDataNumber	exact meaning unknown

Packet format

The packets below are described excluding the AA..BB framing. This means that each full packet is 4 bytes longer.

device-to-cloud messages

See also the other fridge.

"10EB" message

This message contains the initial state of the fridge. It consists of a 2-byte header 10EB followed by a 27-byte status block.

Example (whitespace added for clarity):

10EB 0202040107000000010001FFFFFF00FF0001FFFFFFFFFFFFFF0200

"10EC" message

This message notifies of a change in the fridge's state. It consists of a 2-byte header 10EC followed by two copies of the status block. The first copy describes the previous state, the second one - the new state.

Example (whitespace added for clarity):

10EC 0202040107000000010001FFFFFF00FF0001FFFFFFFFFFFFFF0200
     0202040107000001010001FFFFFF00FF0001FFFFFFFFFFFFFF0200

cloud-to-device messages

initial query

The following message needs to be sent before the fridge will produce any useful output:

F0ED1211010000010400

change settings

All the settings appear to be settable with a single complex message.

AA2FF017FFFFFFFFFFFFFFFF01FFFFFFFFFFFFFFFFFFFFFFFF000000FFFF00FFFFFFFF00FFFFFFFFFFFFFFFFFF95BB

The first 27 bytes following the F017 header appear to match the status block precisely. Unchanged fields are set to 0xff.