Ok, after few days of tests I have my Raspberry Pi2 fully working with Geniatech T230c (0572:c689).
This is procedure of installation and configure:
1. Download and install .img CrazyCat (thanks Cat!) LibreELEC version on Raspberry Pi2:
http://cvh.libreelec.tv/LibreELEC/7.0_Jarvis/RPi2_3/
2. Go to System > DVB Drivers and choose CrazyCat CC. Raspberry will reboot.
3. Login to Raspberry via sshfs:
sshfs root@[Raspberry IP]:/ /media/[your linux profile]/SSH
password is: libreelec
4. On Raspberry go to: /storage/.config and make folder "firmware". Put there two firmware files from this post and reboot Raspberry:
https://tvheadend.org/d/1695-august-dvb-t210?r=22723#message-22723
5. Install tvheadend. System > settings > addons > install from repository > LibreELEC Add-ons > Services > Tvheadend 4.2
6. In web browser go to: http ://[Raspberry Pi IP]:9981, next: Configurations > DVB Inputs
This part depends of your DVB-C or DVB-T provider. Is plenty of detailed tutorials how to configure tvheadend server. At final is necessarily to have in "Services" tab list of TV channels. When you click "Play" on left side, you MUST see playing video in VLC on other software. Then you can go further to next steps.
6. Save all "Play" links of channels to your hard drive by chosse: "Save link as..."
7. Make empty playlist.txt file and put into all text from "Play" files downloaded in point 6. Your playlist file should looks:
#EXTM3U
#EXTINF:-1,CHANNEL 1
http://[Raspberry IP]:9981/stream/service/7cd1560e153447d3af363a6bedfc0907?ticket=4C35509E8BDB6D12E50F3D670C5D7E0D3E87D6B4
#EXTINF:-1,CHANNEL 2
http://[Raspberry IP]:9981/stream/service/1535cff0f5109297a009870a3d3fc494?ticket=7CAC2F03ACBDEC6EA0446DB6F6D68A056303DDD8
#EXTINF:-1,CHANNEL 3
http://[Raspberry IP]:9981/stream/service/000fd21ecc1040d8106be855b9bb28ce?ticket=DA439CB79A72AEC80D62C457F2A6FE2709CF7DFD
#EXTINF:-1,CHANNEL 4
http://[Raspberry IP]:9981/stream/service/4488567945ca63180d49356a7ce1b218?ticket=6AC57B90F81C4BE678862D7306D88DA521ACDA5F
#EXTINF:-1,CHANNEL 5
http://[Raspberry Pi IP]:9981/stream/service/dc793f173e2848e7bf30d13095ca8d20?ticket=B9B03C2DA02C0B0C07D775F69CDAAA75D9806ECA
etc.
Please note, that on begining of playlist file is line: #EXTM3U. Save playlist.txt somewhere on your Raspberry Pi.
8. Activate PVR IPTV Simple Client. Go to: System > Settings > install from repository > LibreELEC Add-ons > PVR Clients > PVR IPTV Simple Client. Go to "Configure". In "General" tab set "Local" in Location field. Below in "MCU Playlist path" set location of your playlist.txt file saved in point 7.
9. Activate Live TV. Go to System > Settings > LiveTV and activate. You will see "TV" on main KODI tab with all channels configured from playlist.txt. Thats all!
This is working for DVB-C and DVB-T. All working fine, and honestly I'm impressed how good this working :) CPU has 10-15%. Video is smooth, no lags. Of course Raspberry Pi2 license keys for MPEG2 and WVC activated.
[EDIT]
Problem with EPG. On TV (dvb-c cable plug to TV) i see EPG, but tvheadend doesn't show any EPG information.
I found some helpfull information about EPG with Raspberry Pi:
http://openelec.tv/forum/71-pvr-live-tv/75761-howto-openelec-raspberry-pi-2-tvheadend
This tutorial require external .xml with EPG. I thought, that EPG information are encoded in DVB-C signal.