Latest Facebook Lite 17 user agents:

User Agent Platform Device
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[FBAN/EMA;FBLC/es_MX;FBAV/17.0.0.5.130;] Android 4 Optimus L7 II
Mozilla/5.0 (Linux; U; Android 4.1.2; es-la; GT-S6810M Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/es_LA;FBAV/17.0.0.5.130;] Android 4 Galaxy FAME
Mozilla/5.0 (Linux; Android 6.0; VFD 300 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.124 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/17.0.0.5.130;] Android 6 Smart Mini 7
Mozilla/5.0 (Linux; Android 5.1; vivo V3 Build/LMY47I; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/43.0.2357.121 Mobile Safari/537.36[FBAN/EMA;FBLC/en_US;FBAV/17.0.0.5.130;] Android 5 V3
Mozilla/5.0 (Linux; Android 4.4.2; Karbonn A5s Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/es_LA;FBAV/17.0.0.5.130;] Android 4 A5s