Latest Facebook Lite 42 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.2.2; pt-pt; ME173X Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Safari/534.30[FBAN/EMA;FBLC/pt_PT;FBAV/42.0.0.3.64;] Android 4 MeMO Pad HD 7
Mozilla/5.0 (Linux; U; Android 4.2.2; pt-pt; ALCATEL ONE TOUCH 7041X Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.2 Mobile Safari/534.30 SVN/070FPG1[FBAN/EMA;FBLC/pt_PT;FBAV/42.0.0.3.64;] Android 4 One Touch Pop C7
Mozilla/5.0 (Linux; Android 4.4.2; SM-G313HZ Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/en_US;FBAV/42.0.0.3.64;] Android 4 Galaxy Ace 4 Lite
Mozilla/5.0 (Linux; Android 4.4.2; pt-PT; 4013X Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/42.0.0.3.64;] Android 4 One Touch Pixi 3 4"
Mozilla/5.0 (Linux; Android 4.4.2; Lenovo A328 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/ru_RU;FBAV/42.0.0.3.64;] Android 4 A328
Mozilla/5.0 (Linux; Android 4.4.2; CHM-U01 Build/HuaweiCHM-U01) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/en_US;FBAV/42.0.0.3.64;] Android 4 Honor 4C