Latest Facebook Lite 43 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.2.2; pt-pt; ALCATEL ONE TOUCH 7041D Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.2 Mobile Safari/534.30[FBAN/EMA;FBLC/pt_PT;FBAV/43.0.0.7.68;] Android 4 One Touch Pop C7 Dual SIM
Mozilla/5.0 (Linux; Android 7.0; ERGO B500 First Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.99 Mobile Safari/537.36[FBAN/EMA;FBLC/ru_RU;FBAV/43.0.0.7.68;] Android 7 B500 First
Mozilla/5.0 (Linux; Android 5.1; STARTRAIL7 Build/LMY47D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/43.0.0.7.68;] Android 5 StarTrail 7
Mozilla/5.0 (Linux; Android 5.1; PMT3508_4G Build/LMY47D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/48.0.2564.106 Safari/537.36[FBAN/EMA;FBLC/ru_RU;FBAV/43.0.0.7.68;] Android 5 PMT3508 4G