Latest Facebook 34 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.3; en-us; ZTE-Z669 Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 Z669
Mozilla/5.0 (Linux; U; Android 4.3; en-us; SCH-R530X Build/JSS15J) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 Galaxy S III LTE
Mozilla/5.0 (Linux; U; Android 4.3; en-us; HUAWEI C8816D Build/HuaweiC8816D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 C8816D
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; HUAWEI Y320-U10 Build/HUAWEIY320-U10) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 Ascend Y320
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/34.0.0.1.267;] 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/34.0.0.43.267;] Android 4 Z740G
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; LG-E455g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 E455g
Mozilla/5.0 (Linux; U; Android 4.1.2; en-gb; HTC Desire 300 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 Desire 300
Mozilla/5.0 (Linux; U; Android 4.1.1; en-us; ZTE-Z993 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 Z993
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; LG-LW770 Build/IMM76I) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 LW770
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; LG-LU6200 Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 LU6200
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; LG-AS730 Build/IMM76L) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 AS730
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; Huawei-U8687 Build/HuaweiU8687) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 U8687
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; HUAWEI M868 Build/HuaweiM868) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 M868
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/34.0.0.43.267;] Android 4 H868C
Mozilla/5.0 (Linux; U; Android 4.0.3; en-ca; HTC-X710a Build/IML74K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 4 X710a
Mozilla/5.0 (Linux; Android 5.1; ZTE Blade L5 Build/LMY47I; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/95.0.4638.74 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 5 Blade L5
Mozilla/5.0 (Linux; Android 5.1.1; SCL-AL00 Build/HuaweiSCL-AL00; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/43.0.2357.121 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 5 Honor 4A
Mozilla/5.0 (Linux; Android 5.0; Lenovo A1000 Build/S100; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/43.0.2357.121 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 5 A1000
Mozilla/5.0 (Linux; Android 5.0.2; vivo V1 Build/LRX22G; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/48.0.2564.106 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/34.0.0.43.267;] Android 5 V1