Greetings, I have the following device: Mygica T230 DVB-T/T2/C, although everywhere I see, it is advertised as a good device, I'm unable to render it working. I've tested on 4 different computers, in all the linux systems (gentoo with kernel 4.13.3, rpi2 with kernel 4.9 and odroid with kerne 3.14 + media-build drivers), I'm unable to get it to work properly. useally, it doesn't receives anything and in the few times it does, the connection drops fast. the fourth computer I've tried is a netbook running windows 10 and the device works great. e.g. I plug it into the rpi2, no reception, I move it to the gentoo machine, the same, I then move it to the win10, it works. I'm using the fw from the linuxtv.org website, scan dobe by w_scan shows this: 538000: (time: 00:37.793) signal ok: QAM_AUTO f = 538000 kHz I999B8C999D999T999G999Y999 (0:0:0) QAM_AUTO f = 538000 kHz I999B8C999D999T999G999Y999 (0:0:0) : updating transport_stream_id: -> (0:0:2) QAM_AUTO f = 538000 kHz I999B8C999D999T999G999Y999 (0:0:2) : updating network_id -> (0:4369:2) new transponder: (QPSK f = 0 kHz I0B999C0D0T2G32Y0 (65314:4369:1)) 0x4000 QAM_AUTO f = 538000 kHz I999B8C999D999T999G999Y999 (0:4369:2) : updating original_network_id -> (65314:4369:2) updating transponder: (QAM_AUTO f = 538000 kHz I999B8C999D999T999G999Y999 (65314:4369:2)) 0x0000 to (QAM_16 f = 538000 kHz I999B8C23D0T8G4Y0 (65314:4369:2)) 0x405A new transponder: (QAM_16 f = 0 kHz I999B8C23D0T8G4Y0 (8959:4369:3)) 0x405A but ends up with this: tune to: QAM_16 f = 538000 kHz I999B8C23D0T8G4Y0 (65314:4369:2) (time: 03:56.559) Info: no data from PAT after 2 seconds Info: no data from SDT(actual) after 3 seconds Info: no data from NIT(actual )after 13 seconds retrying with center_frequency = 514000000 tune to: QAM_16 f = 514000 kHz I999B8C23D0T8G4Y0 (8959:4369:3) (time: 04:11.176) ----------no signal---------- tune to: QAM_AUTO f = 514000 kHz I999B8C999D0T999G999Y0 (8959:4369:3) (time: 04:17.276) (no signal) ----------no signal---------- (time: 04:23.333) dumping lists (0 services) dmesg shows this: [ 4.229580] usb 1-1.5.2: new high-speed USB device number 6 using dwc_otg [ 4.370544] usb 1-1.5.2: language id specifier not provided by device, defaulting to English [ 4.387050] usb 1-1.5.2: New USB device found, idVendor=0572, idProduct=c688 [ 4.397366] usb 1-1.5.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 4.451361] dvb-usb: found a 'Mygica T230 DVB-T/T2/C' in warm state. [ 4.740541] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 4.756011] DVB: registering new adapter (Mygica T230 DVB-T/T2/C) [ 4.798511] i2c i2c-3: Added multiplexed i2c bus 4 [ 4.806867] si2168 3-0064: Silicon Labs Si2168-B40 successfully identified [ 4.817327] si2168 3-0064: firmware version: B 4.0.2 [ 4.844102] media: Linux media interface: v0.10 [ 4.863036] si2157 4-0060: Silicon Labs Si2147/2148/2157/2158 successfully attached [ 4.874499] usb 1-1.5.2: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)... [ 4.887326] input: IR-receiver inside an USB DVB receiver as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/1-1.5.2/input/input0 [ 4.906630] dvb-usb: schedule remote query interval to 100 msecs. [ 4.916686] dvb-usb: Mygica T230 DVB-T/T2/C successfully initialized and connected. [ 4.928449] usbcore: registered new interface driver dvb_usb_cxusb [ 9.489093] si2168 3-0064: downloading firmware from file 'dvb-demod-si2168-b40-01.fw' [ 11.266434] si2168 3-0064: firmware version: B 4.0.25 [ 11.280454] usb 1-1.5.2: DVB: adapter 0 frontend 0 frequency 0 out of range (42000000..870000000) [ 11.573770] si2168 3-0064: downloading firmware from file 'dvb-demod-si2168-b40-01.fw' [ 13.350881] si2168 3-0064: firmware version: B 4.0.25 dvb-fe-tool shows this: Device Silicon Labs Si2168 (/dev/dvb/adapter0/frontend0) capabilities: CAN_2G_MODULATION CAN_FEC_1_2 CAN_FEC_2_3 CAN_FEC_3_4 CAN_FEC_5_6 CAN_FEC_7_8 CAN_FEC_AUTO CAN_GUARD_INTERVAL_AUTO CAN_HIERARCHY_AUTO CAN_INVERSION_AUTO CAN_MULTISTREAM CAN_MUTE_TS CAN_QAM_16 CAN_QAM_32 CAN_QAM_64 CAN_QAM_128 CAN_QAM_256 CAN_QAM_AUTO CAN_QPSK CAN_TRANSMISSION_MODE_AUTO DVB API Version 5.10, Current v5 delivery system: DVBT Supported delivery systems: [DVBT] DVBT2 DVBC/ANNEX_A why does my dongle doesn't work? Thanks, Dagg.