Latest Facebook 58 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.3; pl-pl; SM-G7105 Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Galaxy Grand 2
Mozilla/5.0 (Linux; U; Android 4.3; es-us; ZTE-Z669 Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Z669
Mozilla/5.0 (Linux; U; Android 4.3; es-us; SM-G350M Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Galaxy Core Plus
Mozilla/5.0 (Linux; U; Android 4.3; en-us; ZTE-Z777 Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Z777
Mozilla/5.0 (Linux; U; Android 4.3; en-us; SM-G3502C Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Galaxy Core Plus
Mozilla/5.0 (Linux; U; Android 4.2.2; ru-ru; HTC Desire 616 dual sim Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Desire 616 Dual SIM
Mozilla/5.0 (Linux; U; Android 4.2.2; es-us; GT-S7580E Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Galaxy Trend Plus
Mozilla/5.0 (Linux; U; Android 4.2.2; es-us; GT-I9080L Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Galaxy Grand
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; Micromax A114 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 A114
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; GT-I9080L Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Galaxy Grand
Mozilla/5.0 (Linux; U; Android 4.2.2; en-in; Micromax A114 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 A114
Mozilla/5.0 (Linux; U; Android 4.2.1; en-us; Micromax A250 Build/JOP40D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 A250
Mozilla/5.0 (Linux; U; Android 4.2.1; en-in; Micromax A210 Build/JOP40D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 A210
Mozilla/5.0 (Linux; U; Android 4.1.2; zh-tw; LG-D684 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 G Pro Lite
Mozilla/5.0 (Linux; U; Android 4.1.2; pt-br; LG-P875h Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Optimus F5
Mozilla/5.0 (Linux; U; Android 4.1.2; pt-br; GT-S5310B Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Galaxy POCKET Neo
Mozilla/5.0 (Linux; U; Android 4.1.2; pl-pl; LG-E986 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Optimus G Pro
Mozilla/5.0 (Linux; U; Android 4.1.2; es-us; ZTE-Z740G Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Z740G
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/58.0.0.28.70;] Android 4 Galaxy FAME
Mozilla/5.0 (Linux; U; Android 4.1.2; es-mx; LG-P714 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/58.0.0.28.70;] Android 4 Optimus L7 II