Latest Facebook Lite 26 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.2.2; pt-pt; A3-A10 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Safari/534.30[FBAN/EMA;FBLC/pt_PT;FBAV/26.0.0.4.133;] Android 4 Iconia A3
Mozilla/5.0 (Linux; U; Android 4.1.2; pt-pt; LG-E460 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/pt_PT;FBAV/26.0.0.4.133;] Android 4 Optimus L5 II
Mozilla/5.0 (Linux; U; Android 4.1.2; pt-pt; GT-S7390 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30[FBAN/EMA;FBLC/pt_PT;FBAV/26.0.0.4.133;] Android 4 Galaxy Trend Lite
Mozilla/5.0 (Linux; Android 6.0.1; SM-J710F Build/MMB29K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/50.0.2661.86 Mobile Safari/537.36[FBAN/EMA;FBLC/en_GB;FBAV/26.0.0.4.133;] Android 6 Galaxy J7
Mozilla/5.0 (Linux; Android 4.4.2; T1-701u Build/HuaweiMediaPad) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Safari/537.36[FBAN/EMA;FBLC/ro_RO;FBAV/26.0.0.4.133;] Android 4 MediaPad T1 7
Dalvik/2.1.0 (Linux; U; Android 5.1.1; oppo r7sm Build/LYZ28N) [FBAN/EMA;UNITY_PACKAGE/1590;FBBV/0;FBAV/26.0.0.4.133;FBDV/oppo r7sm;FBLC/en_US;FBOP/20] Android 5 R7sm