Latest Facebook Lite 27 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.2.2; pt-pt; GT-I9105P Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/pt_PT;FBAV/27.0.0.2.67;] Android 4 Galaxy S II Plus
Mozilla/5.0 (Linux; Android 5.0.2; SM-G360F Build/LRX22G; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/27.0.0.2.67;] Android 5 Galaxy Core Prime