<div dir="ltr">Hi Aleksander,<div> </div><div>Thanks for your reply.</div><div> </div><div>Please find the output below (sorry it's a bit long):</div><div> </div><div>pi@okamoto:~ $ sudo qmicli -d /dev/cdc-wdm0 --nas-get-system-selection-preference --verbose [29 Jun 2020, 22:52:06] [Debug] [/dev/cdc-wdm0] Opening device with flags 'auto'... [29 Jun 2020, 22:52:06] [Debug] [/dev/cdc-wdm0] automatically selecting QMI mode [29 Jun 2020, 22:52:06] [Debug] [/dev/cdc-wdm0] created endpoint [29 Jun 2020, 22:52:06] [Debug] QMI Device at '/dev/cdc-wdm0' ready [29 Jun 2020, 22:52:06] [Debug] [/dev/cdc-wdm0] Assuming service 'nas' is supported... [29 Jun 2020, 22:52:06] [Debug] [/dev/cdc-wdm0] Allocating new client ID... [29 Jun 2020, 22:52:06] [Debug] [/dev/cdc-wdm0] sent message... <<<<<< RAW: <<<<<< length = 16 <<<<<< data = 01:0F:00:00:00:00:00:01:22:00:04:00:01:01:00:03 [29 Jun 2020, 22:52:06] [Debug] [/dev/cdc-wdm0] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 15 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 1 <<<<<< tlv_length = 4 <<<<<< message = "Allocate CID" (0x0022) <<<<<< TLV: <<<<<< type = "Service" (0x01) <<<<<< length = 1 <<<<<< value = 03 <<<<<< translated = nas [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] received message... <<<<<< RAW: <<<<<< length = 12 <<<<<< data = 01:0B:00:80:00:00:02:00:27:00:00:00 [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] received generic indication (translated)... <<<<<< QMUX: <<<<<< length = 11 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "indication" <<<<<< transaction = 0 <<<<<< tlv_length = 0 <<<<<< message = "Sync" (0x0027) [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] Sync indication received [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] received message... <<<<<< RAW: <<<<<< length = 24 <<<<<< data = 01:17:00:80:00:00:01:01:22:00:0C:00:02:04:00:00:00:00:00:01:02:00:03:02 [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 23 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 1 <<<<<< tlv_length = 12 <<<<<< message = "Allocate CID" (0x0022) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Allocation Info" (0x01) <<<<<< length = 2 <<<<<< value = 03:02 <<<<<< translated = [ service = 'nas' cid = '2' ] [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] Registered 'nas' (version unknown) client with ID '2' [29 Jun 2020, 22:52:07] [Debug] Asynchronously getting system selection preference... [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] sent message... <<<<<< RAW: <<<<<< length = 13 <<<<<< data = 01:0C:00:00:03:02:00:01:00:34:00:00:00 [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 12 <<<<<< flags = 0x00 <<<<<< service = "nas" <<<<<< client = 2 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 1 <<<<<< tlv_length = 0 <<<<<< message = "Get System Selection Preference" (0x0034) [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] received message... <<<<<< RAW: <<<<<< length = 116 <<<<<< data = 01:73:00:80:03:02:02:01:00:34:00:67:00:02:04:00:00:00:00:00:10:01:00:00:11:02:00:08:00:12:08:00:80:03:40:00:00:00:02:00:14:02:00:FF:00:15:08:00:85:00:00:00:E0:01:00:00:16:01:00:00:18:04:00:02:00:00:00:19:04:00:00:00:00:00:1A:08:00:21:00:00:00:00:00:00:00:1C:07:00:06:08:02:01:09:05:04:1D:04:00:00:00:00:00:1F:04:00:02:00:00:00:20:04:00:03:00:00:00 [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 115 <<<<<< flags = 0x80 <<<<<< service = "nas" <<<<<< client = 2 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 1 <<<<<< tlv_length = 103 <<<<<< message = "Get System Selection Preference" (0x0034) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Emergency mode" (0x10) <<<<<< length = 1 <<<<<< value = 00 <<<<<< translated = no <<<<<< TLV: <<<<<< type = "Mode Preference" (0x11) <<<<<< length = 2 <<<<<< value = 08:00 <<<<<< translated = umts <<<<<< TLV: <<<<<< type = "Band Preference" (0x12) <<<<<< length = 8 <<<<<< value = 80:03:40:00:00:00:02:00 <<<<<< translated = gsm-dcs-1800, gsm-900-extended, gsm-900-primary, wcdma-2100, wcdma-900 <<<<<< TLV: <<<<<< type = "Roaming Preference" (0x14) <<<<<< length = 2 <<<<<< value = FF:00 <<<<<< translated = any <<<<<< TLV: <<<<<< type = "LTE Band Preference" (0x15) <<<<<< length = 8 <<<<<< value = 85:00:00:00:E0:01:00:00 <<<<<< translated = 1, 3, 8, 38, 39, 40, 41 <<<<<< TLV: <<<<<< type = "Network Selection Preference" (0x16) <<<<<< length = 1 <<<<<< value = 00 <<<<<< translated = automatic <<<<<< TLV: <<<<<< type = "Service Domain Preference" (0x18) <<<<<< length = 4 <<<<<< value = 02:00:00:00 <<<<<< translated = cs-ps <<<<<< TLV: <<<<<< type = "GSM WCDMA Acquisition Order Preference" (0x19) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = automatic <<<<<< TLV: <<<<<< type = "TD SCDMA Band Preference" (0x1a) <<<<<< length = 8 <<<<<< value = 21:00:00:00:00:00:00:00 <<<<<< translated = a, f <<<<<< TLV: <<<<<< type = "Acquisition Order Preference" (0x1c) <<<<<< length = 7 <<<<<< value = 06:08:02:01:09:05:04 <<<<<< translated = { [0] = 'lte ' [1] = 'cdma-1xevdo ' [2] = 'cdma-1x ' [3] = 'td-scdma ' [4] = 'umts ' [5] = 'gsm '} <<<<<< TLV: <<<<<< type = "Network Selection Registration Restriction" (0x1d) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = unrestricted <<<<<< TLV: <<<<<< type = "Usage Preference" (0x1f) <<<<<< length = 4 <<<<<< value = 02:00:00:00 <<<<<< translated = data-centric <<<<<< TLV: <<<<<< type = "Voice Domain Preference" (0x20) <<<<<< length = 4 <<<<<< value = 03:00:00:00 <<<<<< translated = ps-preferred [/dev/cdc-wdm0] Successfully got system selection preference Emergency mode: 'no' Mode preference: 'umts' Band preference: 'gsm-dcs-1800, gsm-900-extended, gsm-900-primary, wcdma-2100, wcdma-900' LTE band preference: '1, 3, 8, 38, 39, 40, 41' TD-SCDMA band preference: 'a, f' Roaming preference: 'any' Network selection preference: 'automatic' Service domain preference: 'cs-ps' GSM/WCDMA acquisition order preference: 'automatic' Usage preference: 'data-centric' Voice domain preference: 'ps-preferred' Registration restriction: 'unrestricted' Acquisition order preference: lte, cdma-1xevdo, cdma-1x, td-scdma, umts, gsm [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] Releasing 'nas' client with flags 'release-cid'... [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] Unregistered 'nas' client with ID '2' [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] sent message... <<<<<< RAW: <<<<<< length = 17 <<<<<< data = 01:10:00:00:00:00:00:02:23:00:05:00:01:02:00:03:02 [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 16 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 2 <<<<<< tlv_length = 5 <<<<<< message = "Release CID" (0x0023) <<<<<< TLV: <<<<<< type = "Release Info" (0x01) <<<<<< length = 2 <<<<<< value = 03:02 <<<<<< translated = [ service = 'nas' cid = '2' ] [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] received message... <<<<<< RAW: <<<<<< length = 24 <<<<<< data = 01:17:00:80:00:00:01:02:23:00:0C:00:02:04:00:00:00:00:00:01:02:00:03:02 [29 Jun 2020, 22:52:07] [Debug] [/dev/cdc-wdm0] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 23 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 2 <<<<<< tlv_length = 12 <<<<<< message = "Release CID" (0x0023) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Release Info" (0x01) <<<<<< length = 2 <<<<<< value = 03:02 <<<<<< translated = [ service = 'nas' cid = '2' ] [29 Jun 2020, 22:52:07] [Debug] Client released [29 Jun 2020, 22:52:07] [Debug] Closed </div><div> </div><div>Regards,</div><div>Leo</div><div> </div><div> </div></div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Jun 28, 2020 at 2:54 PM Aleksander Morgado <<a href="mailto:aleksander@aleksander.es">aleksander@aleksander.es</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hey Leo, > It's the BroadMobi BM806U (Qualcomm MDM 9225) and I suspect it was taken out from a D-Link DWR-921 C3: > > <a href="https://openwrt.org/toh/d-link/d-link_dwr-921#tab__revision_c3" rel="noreferrer" target="_blank">https://openwrt.org/toh/d-link/d-link_dwr-921#tab__revision_c3</a> > > It only has the cdc-wdm0 and wwan0 ports. > > I was able to enable the LTE-FDD band 1, 3 and 8 earlier but now stuck with preferred mode = none. > > Please let me know if you need any additional information. > I'm afraid I don't recall seeing an issue like that before :/ It could really be some missing TLV in the Set System Selection Preference or something like that. Could you run the --nas-get-system-selection-preference qmicli command with --verbose to see which TLVs the Get command sends? -- Aleksander <a href="https://aleksander.es" rel="noreferrer" target="_blank">https://aleksander.es</a> </blockquote></div>