Latest Facebook Messenger 404 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; vivo 1902 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.117 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 9 Y17
Mozilla/5.0 (Linux; Android 9; S40Lite Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.48 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 9 S40 Lite
Mozilla/5.0 (Linux; Android 9; Mi MIX 3 Build/PKQ1.180729.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.48 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 9 Mi Mix 3
Mozilla/5.0 (Linux; Android 9; itel W5505 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.47 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 9 A36
Mozilla/5.0 (Linux; Android 9; Infinix X652B Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 9 S5 Lite
Mozilla/5.0 (Linux; Android 8.1.0; star_two Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 8 I Star Two
Mozilla/5.0 (Linux; Android 8.1.0; Hisense F27 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 8 F27
Mozilla/5.0 (Linux; Android 8.1.0; CPH1909 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.117 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 8 A5S
Mozilla/5.0 (Linux; Android 8.1.0; CPH1909 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/108.0.5359.128 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 8 A5S
Mozilla/5.0 (Linux; Android 8.0.0 SAMSUNG SM-G925F Build/EEU69693817S: wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/165.0.0.2740.102 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 8 Galaxy S6 Edge
Mozilla/5.0 (Linux; Android 7.1.2; Plume H1 Build/N2G47H; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 7 Plume H1
Mozilla/5.0 (Linux; Android 7.1.1; N9560 Build/NMF26F; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.47 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 7 Max XL
Mozilla/5.0 (Linux; Android 5.1.1; HUAWEI P7-L10 Build/HuaweiP7-L10; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/95.0.4638.74 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 5 Ascend P7
Mozilla/5.0 (Linux; Android 4.4.2; PGN-506 Build/KVT49L) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 4 C7
Mozilla/5.0 (Linux; Android 13; SM-S918B Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 13 Galaxy S23 Ultra
Mozilla/5.0 (Linux; Android 13; SM-M336BU Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 13 Galaxy M33 5G
Mozilla/5.0 (Linux; Android 13; SM-F711U Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 13 Galaxy Z Flip 3
Mozilla/5.0 (Linux; Android 13; SM-E135F Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.47 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 13 Galaxy F13
Mozilla/5.0 (Linux; Android 13; SM-E135F Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 13 Galaxy F13
Mozilla/5.0 (Linux; Android 13; SM-A336B Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.48 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/404.0.0.14.115;] Android 13 Galaxy A33 5G