Latest Facebook Lite 56 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.2.2; pt-pt; C2005 Build/15.2.A.2.5) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/pt_PT;FBAV/56.0.0.4.89;] Android 4 Xperia M Dual
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/090FPG1[FBAN/EMA;FBLC/pt_PT;FBAV/56.0.0.4.89;] Android 4 One Touch Pop C7
Mozilla/5.0 (Linux; U; Android 4.2.2; fr-fr; GT-I9168I Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/fr_FR;FBAV/56.0.0.4.89;] Android 4 Galaxy Grand Neo+
Mozilla/5.0 (Linux; U; Android 4.1.2; ru-ru; HTC Desire 600 dual sim Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/ru_RU;FBAV/56.0.0.4.89;] Android 4 Desire 600 Dual SIM
Mozilla/5.0 (Linux; U; Android 4.1.2; es-es; LG-E411g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/es_ES;FBAV/56.0.0.4.89;] Android 4 E411g
Mozilla/5.0 (Linux; Android 6.0.1; VFD 600 Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/46.0.2490.76 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/56.0.0.4.89;] Android 6 Smart Prime 7
Mozilla/5.0 (Linux; Android 5.1.1; SM-G531F Build/LMY48B; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.107 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/56.0.0.4.89;] Android 5 Galaxy Grand Prime
Mozilla/5.0 (Linux; Android 5.1.1; SM-G531F Build/LMY48B; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/56.0.0.4.89;] Android 5 Galaxy Grand Prime
Mozilla/5.0 (Linux; Android 4.4.4; SM-J100H Build/KTU84P) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/56.0.0.4.89;] Android 4 Galaxy J1