Latest Facebook 231 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; VOG-L29 Build/HUAWEIVOG-L29; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 P30 Pro
Mozilla/5.0 (Linux; Android 9; TECNO KB7j Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Spark 3
Mozilla/5.0 (Linux; Android 9; SNE-LX1 Build/HUAWEISNE-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/75.0.3770.143 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Mate 20 Lite
Mozilla/5.0 (Linux; Android 9; SM-S767VL Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy J7 Crown
Mozilla/5.0 (Linux; Android 9; SM-J810G Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy J8
Mozilla/5.0 (Linux; Android 9; SM-J337V Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy J3 (2018)
Mozilla/5.0 (Linux; Android 9; SM-J330F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy J3 (2017)
Mozilla/5.0 (Linux; Android 9; SM-G892A Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/75.0.3770.143 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy S8 Active
Mozilla/5.0 (Linux; Android 9; SM-A920F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/75.0.3770.101 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy A9 (2018)
Mozilla/5.0 (Linux; Android 9; SM-A705FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy A70
Mozilla/5.0 (Linux; Android 9; SM-A530F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.157 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy A8
Mozilla/5.0 (Linux; Android 9; SM-A505FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/72.0.3626.121 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy A50
Mozilla/5.0 (Linux; Android 9; SM-A505FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/71.0.3578.99 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy A50
Mozilla/5.0 (Linux; Android 9; SM-A305FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/75.0.3770.101 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Galaxy A30
Mozilla/5.0 (Linux; Android 9; MRD-LX1 Build/HUAWEIMRD-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/96.0.4664.45 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Y6 (2019)
Mozilla/5.0 (Linux; Android 9; MRD-LX1 Build/HUAWEIMRD-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.115 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Y6 (2019)
Mozilla/5.0 (Linux; Android 9; MAR-LX1A Build/HUAWEIMAR-L21A; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 P30 Lite
Mozilla/5.0 (Linux; Android 9; MAR-LX1A Build/HUAWEIMAR-L21A; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 P30 Lite
Mozilla/5.0 (Linux; Android 9; KSA-LX9 Build/HONORKSA-LX9; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/88.0.4324.152 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Honor 8S
Mozilla/5.0 (Linux; Android 9; JSN-L21 Build/HONORJSN-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/75.0.3770.143 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/231.0.0.39.113;] Android 9 Honor 8X