Latest Facebook Lite 15 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.1.2; es-la; LG-P708g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/es_LA;FBAV/15.0.0.18.141;] Android 4 P708g
Mozilla/5.0 (Linux; U; Android 4.1.2; es-la; LG-E450 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/es_LA;FBAV/15.0.0.18.141;] Android 4 Optimus L5 II
Mozilla/5.0 (Linux; U; Android 4.1.2; es-la; LG-E440g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/es_LA;FBAV/15.0.0.18.141;] Android 4 Optimus L4 II
Mozilla/5.0 (Linux; U; Android 4.1.2; es-la; G527-U081 Build/HuaweiG527-U081) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/es_LA;FBAV/15.0.0.18.141;] Android 4 Ascend G527
Mozilla/5.0 (Linux; U; Android 4.1.2; es-es; LG-E425g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/es_ES;FBAV/15.0.0.18.141;] Android 4 E425g
Mozilla/5.0 (Linux; U; Android 4.1.1; es-es; ZTE-Z993 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/es_ES;FBAV/15.0.0.3.141;] Android 4 Z993
Mozilla/5.0 (Linux; Android 6.0; LG-H420 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/49.0.2623.105 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/15.0.0.18.141;] Android 6 Spirit
Mozilla/5.0 (Linux; Android 6.0.1; Xperia T Build/MOB30Z; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/51.0.2704.106 Mobile Safari/537.36[FBAN/EMA;FBLC/es_LA;FBAV/15.0.0.18.141;] Android 6 Xperia T
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[FBAN/EMA;FBLC/es_LA;FBAV/15.0.0.18.141;] Android 5 Q5 Urban
Mozilla/5.0 (Linux; Android 4.4.2; LG-X130g Build/KOT49H.V10a) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/es_LA;FBAV/15.0.0.18.141;] Android 4 L45
Mozilla/5.0 (Linux; Android 4.4.2; HUAWEI P7-L10 Build/HuaweiP7-L10) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/en_GB;FBAV/15.0.0.18.141;] Android 4 Ascend P7
Mozilla/5.0 (Linux; Android 4.4.2; ASUS_Z007 Build/KVT49L) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/ru_RU;FBAV/15.0.0.18.141;] Android 4 ZenFone C