Latest Facebook 86 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.3; en-us; ZTE-Z667G Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 Z667G
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/86.0.0.19.69;] Android 4 A47
Mozilla/5.0 (Linux; U; Android 4.1.2; es-us; GT-S6810M Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 Galaxy FAME
Mozilla/5.0 (Linux; U; Android 4.1.2; es-mx; LG-E440g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 Optimus L4 II
Mozilla/5.0 (Linux; U; Android 4.1.2; es-mx; LG-E410g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 Optimus L1 II
Mozilla/5.0 (Linux; U; Android 4.1.2; es-es; GT-I8260L Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 Galaxy Core
Mozilla/5.0 (Linux; U; Android 4.1.2; es-ar; LG-E465g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 E465g
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/86.0.0.19.69;] Android 4 Z740G
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; LG-LG870 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 870
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; HTC One VX Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 One VX
Mozilla/5.0 (Linux; U; Android 4.0.4; es-us; HTC One VX Build/IMM76I) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 One VX
Mozilla/5.0 (Linux; U; Android 4.0.4; es-mx; LG-P970h Build/IMM76L) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 P970h
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; SGH-S730G Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 Galaxy Discover
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/86.0.0.19.69;] Android 4 AS730
Mozilla/5.0 (Linux; U; Android 4.0.3; es-co; LG-E612g Build/IML74K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 4 Optimus L5
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/86.0.0.19.69;] Android 4 PH39100
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/86.0.0.19.69;] Android 4 X710a
Mozilla/5.0 (Linux; Android 5.1; VF-795 Build/LMY47D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/51.0.2704.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 5 Smart Speed 6
Mozilla/5.0 (Linux; Android 5.1; SELFIX_Q5_URBAN Build/LMY47I) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/39.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 5 Q5 Urban
Mozilla/5.0 (Linux; Android 5.1; P8_Energy_mini_TM Build/LMY47I; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/46.0.2490.76 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/86.0.0.19.69;] Android 5 P8 Energy Mini