Latest Facebook Messenger 192 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 8.1.0; SM-J701M Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Galaxy J7 Core
Mozilla/5.0 (Linux; Android 8.1.0; SM-G610F Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Galaxy J7 Prime
Mozilla/5.0 (Linux; Android 8.1.0; JKM-LX3 Build/HUAWEIJKM-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Y9 (2019)
Mozilla/5.0 (Linux; Android 8.1.0; EML-L09 Build/HUAWEIEML-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 P20
Mozilla/5.0 (Linux; Android 8.1.0; CAG-L23 Build/HUAWEICAG-L23; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Y5 Lite (2018)
Mozilla/5.0 (Linux; Android 8.0.0; WAS-LX3 Build/HUAWEIWAS-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 P10 Lite
Mozilla/5.0 (Linux; Android 8.0.0; VTR-L29 Build/HUAWEIVTR-L29; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 P10
Mozilla/5.0 (Linux; Android 8.0.0; SM-J720M Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Galaxy J7 Duo
Mozilla/5.0 (Linux; Android 8.0.0; SM-J600G Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Galaxy J6
Mozilla/5.0 (Linux; Android 8.0.0; SM-J400M Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Galaxy J4
Mozilla/5.0 (Linux; Android 8.0.0; SM-C7010 Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Galaxy C7 Pro
Mozilla/5.0 (Linux; Android 8.0.0; RNE-L21 Build/HUAWEIRNE-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Mate 10 Lite
Mozilla/5.0 (Linux; Android 8.0.0; RNE-L03 Build/HUAWEIRNE-L03; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Mate 10 Lite
Mozilla/5.0 (Linux; Android 8.0.0; LDN-LX3 Build/HUAWEILDN-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Y7 (2018)
Mozilla/5.0 (Linux; Android 8.0.0; FLA-LX3 Build/HUAWEIFLA-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Y9 (2018)
Mozilla/5.0 (Linux; Android 8.0.0; FIG-LX3 Build/HUAWEIFIG-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 P smart
Mozilla/5.0 (Linux; Android 8.0.0; BLA-L09 Build/HUAWEIBLA-L09S; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Mate 10 Pro
Mozilla/5.0 (Linux; Android 8.0.0; ATU-LX3 Build/HUAWEIATU-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 Y6 (2018)
Mozilla/5.0 (Linux; Android 8.0.0; ANE-LX3 Build/HUAWEIANE-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 P20 Lite
Mozilla/5.0 (Linux; Android 8.0.0; ANE-LX3 Build/HUAWEIANE-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/192.0.0.31.101;] Android 8 P20 Lite