Troubleshooting

Topic	Replies	Views	Activity
Help! My Notecard is not connecting to the Cell Network! NOTE: An updated version of this guide is available here: Diagnosing Cellular Connectivity Issues ▶ Summary ▶ Version This guide assumes you can communicate with the Notecard locally with serial, USB, or I2C and you can…	4	2102	May 13, 2022
About the Troubleshooting category	0	712	November 24, 2020
I2C Connection Issues with ESP32 MCU and Notecard WiFi	8	51	April 16, 2026
Satellite (re)connecting	3	14	April 13, 2026
I cant get data to transmit from LoRa Notecard but its connecting to the Notehub	2	21	March 23, 2026
Syncronizing timmig of event upload cellular-coverage	4	27	March 16, 2026
Alternatives to AWS SQS (Access Key) Routes	4	92	February 25, 2026
NTN transmission problem	3	27	February 18, 2026
Discrepancy between template size and card.usage.get reported size python	1	12	February 11, 2026
Change DFU Mode Remotely	3	30	February 10, 2026
Notecard firmware not sorted by reverse creation date	2	31	January 14, 2026
Outboard DFU woes: "DFU image is not valid 9(0) {odfu-fail}"	3	51	November 21, 2025
I2C and UART degradation	6	77	November 10, 2025
Failed to reset Notecard Exception Issue python	6	69	October 23, 2025
Session Close/Open Behavior while Swan sleeps	9	95	October 20, 2025
GPS not locking when in periodic mode (but does in continuous)	4	54	August 14, 2025
GPS attempt requiring initial cell connection	5	53	August 13, 2025
Error condition spotted on v8.1.4 LTS - mutexLock nested! file.c:216. mutex:127 in _health.qo firmware-release , lts	8	82	August 4, 2025
Wifi Notecard connecting followed by 'Firmware Exception and Timeout'	7	134	August 1, 2025
NOTE-WIFI works with our I2C setup, NOTE-ESP fails to work on I2C	9	108	July 10, 2025
Failed to aquire I2C lock while trying to put Swan to sleep with CircuitPython	2	42	June 27, 2025
Communication Failure from WIFI to Cellular	7	62	June 13, 2025
Anyone experienced this before?	1	32	June 12, 2025
[Wireless for Opta] Constant I2C errors	5	126	June 10, 2025
Utilizing ESP32-S3 USB-UART in tandem with UART0 for Notecard Comms	8	384	May 23, 2025
Inconsistent rsp when following the RPI tutorial	2	40	May 20, 2025
Only one of multiple Notes is successfully routed	24	274	May 13, 2025
Is there an easy way to determine if Notecard is seeing an external SIM?	2	51	May 7, 2025
I2C error encountered during I2C transmit hook execution	5	187	May 5, 2025
Serial connection	3	52	April 30, 2025

Help! My Notecard is not connecting to the Cell Network!

NOTE: An updated version of this guide is available here: Diagnosing Cellular Connectivity Issues ▶ Summary ▶ Version This guide assumes you can communicate with the Notecard locally with serial, USB, or I2C and you can…