Latest Facebook 124 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; HTC X920e Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 4 X920e
Mozilla/5.0 (Linux; U; Android 4.1.2; en-ca; LG-E971 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 4 E971
Mozilla/5.0 (Linux; Android 9; itel W6004 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 9 A56 LTE
Mozilla/5.0 (Linux; Android 8.1.0; vivo 1718 Build/OPM1.171019.026; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 8 V7
Mozilla/5.0 (Linux; Android 7.1.2; vivo 1719 Build/N2G47H; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/96.0.4664.92 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 7 Y65
Mozilla/5.0 (Linux; Android 7.0; TECNO WX3P Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/62.0.3202.84 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 7 WX3 Pro
Mozilla/5.0 (Linux; Android 7.0; TECNO WX3P Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 7 WX3 Pro
Mozilla/5.0 (Linux; Android 6.0; XT1069 Build/MPB24.65-34-3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 Moto G
Mozilla/5.0 (Linux; Android 6.0; STARTRAIL 8 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/56.0.2924.87 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 StarTrail 8
Mozilla/5.0 (Linux; Android 6.0; STARNAUTE3 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 StarNaute 3
Mozilla/5.0 (Linux; Android 6.0; ALE-L21 Build/HuaweiALE-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 P8 Lite (2015)
Mozilla/5.0 (Linux; Android 6.0; 5045X Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/50.0.2661.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 One Touch Pixi 4 5" 4G
Mozilla/5.0 (Linux; Android 6.0; 4034D Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/59.0.3071.125 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 One Touch Pixi 4 4"
Mozilla/5.0 (Linux; Android 6.0.1; vivo 1606 Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.101 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 Y53i
Mozilla/5.0 (Linux; Android 6.0.1; vivo 1606 Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 Y53i
Mozilla/5.0 (Linux; Android 6.0.1; VFD 600 Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 Smart Prime 7
Mozilla/5.0 (Linux; Android 6.0.1; SM-J710MN Build/MMB29K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 Galaxy J7
Mozilla/5.0 (Linux; Android 6.0.1; MotoG3 Build/MPIS24.107-55-2-17; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 Moto G3
Mozilla/5.0 (Linux; Android 6.0.1; HTC M8d Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/46.0.2490.76 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 One M8
Mozilla/5.0 (Linux; Android 6.0.1; H1623 Build/HUAWEIH1623; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/124.0.0.22.66;] Android 6 H1623