Mikrotik 951G-2HnD + Modem YOTA 4G LTE

Hello! I’m trying to run Modem YOTA 4G LTE on Mikrotik 951G-2HnD with no success. Device doesn’t appear in system->resources->usb. No interface is created
I tried to reset firmware, tried to use more powerful power supply (24V 1,2A). Tried to install lte package.
Some info on router:

RouterOS v6.40.4 (stable)
Model		951G-2HnD
Serial Number		4699025310F9
Firmware Type		ar9344
Factory Firmware		3.10
Current Firmware		3.41
Upgrade Firmware		3.41

And here is router log:

[admin@MikroTik] > log print        
00:25:49 system,info router rebooted 
00:25:58 wireless,info wlan1: pre-shared key authentication not enabled, disable WPS 
00:25:58 interface,info lte1 link up 
00:25:58 interface,info lte1 link down 
00:25:59 interface,info lte1 link up 
00:26:12 interface,info lte1 link down 
00:26:12 interface,info lte1 link up 
00:26:14 interface,info lte1 link down 
00:26:15 interface,info lte1 link up 
00:26:25 wireless,info 98:5F:XX:XX:XX:XX@wlan1: connected 
00:26:25 interface,info lte1 link down 
00:26:26 interface,info lte1 link up 
00:26:27 interface,info lte1 link down 
00:26:27 interface,info lte1 link up 
00:26:28 interface,info lte1 link down 
00:26:28 interface,info lte1 link up 
00:26:28 interface,info lte1 link down 
00:26:29 interface,info lte1 link up 
00:26:29 interface,info lte1 link down 
00:26:30 interface,info lte1 link up 
00:26:30 interface,info lte1 link down 
00:26:30 interface,info lte1 link up 
00:26:31 interface,info lte1 link down 
00:26:32 interface,info lte1 link up  
00:26:32 interface,info lte1 link down 
00:26:33 interface,info lte1 link up 
00:26:33 interface,info lte1 link down 
00:26:34 interface,info lte1 link up 
00:26:34 interface,info lte1 link down 
00:26:35 interface,info lte1 link up 
00:26:35 interface,info lte1 link down 
00:26:36 interface,info lte1 link up 
00:26:37 interface,info lte1 link down 
00:26:38 interface,info lte1 link up 
00:26:38 interface,info lte1 link down 
00:26:38 interface,info lte1 link up 
00:26:39 interface,info lte1 link down 
00:26:39 interface,info lte1 link up 
00:26:39 interface,info lte1 link down 
00:26:52 system,info,account user admin logged in from 192.168.88.254 via web 
00:26:53 system,info,account user admin logged in via local

Then I tried to check modem with anoter router:

RouterOS v6.40.4 (stable)
Model		RouterBOARD 962UiGS-5HacT2HnT
Serial Number		6F120781F3DA
Firmware Type		qca9550L
Factory Firmware		3.34
Current Firmware		3.41
Upgrade Firmware		3.41

Modem is detected successfully and “lte1” interface is created:

Device		1:2
Vendor		Yota Devices LTD
Name		Modem YOTA 4G LTE
Serial Number		usb_serial_num_0
Vendor ID		0x15a9
Device ID		0x002d
Speed		480 Mbps
USB Version		2.00
Ports		0

Does it mean that 951G doesn’t support this modem? Do you have any suggestions?

Finally I got it working via ordinary usb hub (it has buit-in ethernet, but no external power). Is there something I don’t know about mikrotik usb? Or it is just a bug?
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