Latest Facebook 74 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.4.4; en-us; SM-G9001 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Galaxy S5
Mozilla/5.0 (Linux; U; Android 4.3; en-us; vivo Xshot Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Xshot
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; vivo Y15 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Y15
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; Micromax A47 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 A47
Mozilla/5.0 (Linux; U; Android 4.2.2; en-au; GT-S7275Y Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Galaxy ACE 3
Mozilla/5.0 (Linux; U; Android 4.1.2; pt-br; LG-E465f Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Optimus L4 II
Mozilla/5.0 (Linux; U; Android 4.1.2; es-mx; LG-P659 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 P659
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; ZTE-Z998 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Z998
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; ZTE-Z740G Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Z740G
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; ZTE-Z740G Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.10.69;] Android 4 Z740G
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; SCH-I200PP Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Galaxy Stellar
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; LG-P870 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 P870
Mozilla/5.0 (Linux; U; Android 4.1.2; en-nz; LG-E460f Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Optimus L5 II
Mozilla/5.0 (Linux; U; Android 4.1.2; en-au; GT-S6310T Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Galaxy Young
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; HUAWEI H881C Build/HuaweiH881C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 H881C
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; HUAWEI H868C Build/HuaweiH868C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 H868C
Mozilla/5.0 (Linux; U; Android 4.0.3; en-us; HTC PH39100 Build/IML74K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 PH39100
Mozilla/5.0 (Linux; Android 6.0; HTC6525LVW Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/45.0.2454.95 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 6 One M8
Mozilla/5.0 (Linux; Android 5.0.2; K01B Build/LRX22G; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/50.0.2661.86 Safari/537.36 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 5 Transformer Pad TF303K
Mozilla/5.0 (Linux; Android 4.4.4; SM-G750F Build/KTU84P) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/74.0.0.21.69;] Android 4 Galaxy Mega 2