Esim not working after installation

Tachyon
1

Hello,

I just installed an eSIM from roamify, but it is not connecting.

It just forever shows the following in the logs:

Dec 30 08:01:27 tachyon-f3f1a661 particle-tachyon-rild[865143]: Command: AT+CEREG?, Response:
Dec 30 08:01:27 tachyon-f3f1a661 particle-tachyon-rild[865143]: +CEREG: 2,0
Dec 30 08:01:27 tachyon-f3f1a661 particle-tachyon-rild[865143]:
Dec 30 08:01:27 tachyon-f3f1a661 particle-tachyon-rild[865143]: OK
Dec 30 08:01:32 tachyon-f3f1a661 particle-tachyon-rild[865143]: Command: AT+CEREG?, Response:
Dec 30 08:01:32 tachyon-f3f1a661 particle-tachyon-rild[865143]: +CEREG: 2,0
Dec 30 08:01:32 tachyon-f3f1a661 particle-tachyon-rild[865143]:
Dec 30 08:01:32 tachyon-f3f1a661 particle-tachyon-rild[865143]: OK

I did turn the moden off and on, tried disconnect/connect, tried to set the APN manually.

Ubuntu RoW/ 20.04

Any other ideas?

2

Here are the things I would check:

Is the correct profile enabled for the area? +CEREG: 2,0 suggests that the SIM might not be ready or active.

What are the early logs saying for particle-tachyon-rild?

It might be worth it to run the particle-cell-qxdm log capture. It will generate a large 150MB zip file.

Also note that the APN is case-sensitive.

3

yes, correct profile is active. output as folows:

Tue Dec 30 20:24:48.296 CET 2025: Registering to Cellular Network...
Tue Dec 30 20:24:48.345 CET 2025: ICCID currently active: 89812003919122204789 (Unknown)
Tue Dec 30 20:24:48.345 CET 2025: Active SIM: 1 (INTERNAL)
Tue Dec 30 20:24:48.346 CET 2025: Using APN: "plus"
Tue Dec 30 20:24:48.346 CET 2025: Command: AT+QNVR=5280,0, Response:
+QNVR: "0102000000000000"

OK

Tue Dec 30 20:24:48.377 CET 2025: Command: ATE0, Response:
OK

Tue Dec 30 20:24:48.403 CET 2025: Command: AT+QNVFR="/nv/item_files/ims/IMS_enable", Response: +QNVFR:
00
Tue Dec 30 20:24:48.433 CET 2025: Command: AT+QNVFR="/nv/item_files/modem/mmode/sms_only", Response: Tue Dec 30 20:24:49.264 CET 2025: Command: AT+QNVFR="/nv/item_files/modem/mmo
de/sms_only", Response:
ERROR

Tue Dec 30 20:24:49.264 CET 2025: Command: AT+QNVFR="/nv/item_files/modem/mmode/ue_usage_setting", Response: Tue Dec 30 20:24:50.110 CET 2025: Command: AT+QNVFR="/nv/item_files/m
odem/mmode/ue_usage_setting", Response:
ERROR

Tue Dec 30 20:24:50.110 CET 2025: Command: ATE1, Response:
OK

Tue Dec 30 20:24:50.994 CET 2025: Get Preferred network type: 24 (NR5G TD-SCDMA LTE CDMA EVDO GSM WCDMA)
Tue Dec 30 20:24:50.994 CET 2025: Command: AT+CGDCONT?, Response:
+CGDCONT: 1,"IP","plus","0.0.0.0",0,0,0,0,,,,,,,,,"",,,,0

OK

Tue Dec 30 20:24:51.025 CET 2025: Command: AT+CEREG=2, Response:
OK

Tue Dec 30 20:24:51.062 CET 2025: Command: AT+COPS?, Response:
+COPS: 0

OK

Tue Dec 30 20:24:51.114 CET 2025: Command: AT+CEREG?, Response:
+CEREG: 2,3

OK

Tue Dec 30 20:24:56.146 CET 2025: Command: AT+CEREG?, Response:
+CEREG: 2,3

OK

Tue Dec 30 20:25:01.197 CET 2025: Command: AT+CEREG?, Response:
+CEREG: 2,3

OK

Tue Dec 30 20:25:06.242 CET 2025: Command: AT+CEREG?, Response:
+CEREG: 2,3

OK

….snip

Tue Dec 30 20:29:53.932 CET 2025: Error: Network Registration timed out after 5 minutes!
Please check antenna and APN setting!
Tue Dec 30 20:29:53.967 CET 2025: Processing: STATUS
Tue Dec 30 20:29:53.967 CET 2025: Monitoring status of Cellular Network (CTRL+C to quit)...
Tue Dec 30 20:29:53.972 CET 2025: Signal Strength: 0 (0-31) / -113dBm, RSRP: 0dBm, RSRQ: 0dB, RSSNR: 0.0dB
Tue Dec 30 20:29:54.121 CET 2025: MCCMNC: unknown, LAC: 0, CID: 0, ACT: unknown, CARRIER: unknown
Tue Dec 30 20:29:54.125 CET 2025: data_connection: down

4

Hi,

It looks like your custom APN was loaded ok "plus", but the network is rejecting the device "+CEREG: 2,3". Can you check with roamify if the ICCID is activated?

5

Hi,

I can only check data usage and that the ICCID seems to be ok (zero data used). Also I tried another of their esims in my pixel phone and it worked without issues.

So not quite clear what the issue is. I tried 2 esims from roamify in 2 different countries: Bulgaria and Turkiye. Also I tried another esim from a different provider in Turkiye which kinda worked (very slow ping times), but connected.

I’ll do another attempt in Georgia with a local esim and report back.

Btw: I did see some SIM card errors, but couldn’t reproduce them, so there might be some incompatibility with their esim profiles.