> For the complete documentation index, see [llms.txt](https://enless.gitbook.io/centre-aide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enless.gitbook.io/centre-aide/guides-installation/documentation-en/products/editor-2/troubleshooting.md).
# Troubleshooting
Troubleshooting
Need help with your TX T&H E-INK AMB? Access our FAQ below or ask the assistant your question
I can't connect my sensor to my LoRa Easy receiver
If you cannot connect your sensor to your LoRa Easy receiver, first check that the product switch is set to LoRa mode before powering the sensor.
If not:
1. Set the switch or jumper to the LoRa position (position 0)
2. Press the push button so that the mode change is taken into account.
{% hint style="info" %}
Also check that the sensor's LoRa ID has been correctly declared on your receiver.
{% endhint %}
When I remove the battery from my sensor, it keeps working. How can I turn it off completely?
The fact that the sensor continues to work even when the battery is removed is explained by the fact that it includes a supercap that acts as an energy reserve. It may be that this supercap has stored enough energy to power the product for a while, even when the battery is removed. If you want to turn the product off completely, you must drain the supercap. The procedure is described below: \
How do I decode the battery status of my sensor in the Modbus table of the LoRa Easy receiver?
The battery status must be decoded in the "Status" register.
Here, the value read is 0004 (hexadecimal). Convert this hexadecimal value into 16-bit binary.
0004(hex) = 00000000 0000**01**00 (binary)
Bits 3 and 2 **in red** are the ones that provide information on the battery level:
**00** = 100%\
**01** = 75%\
**10** = 50%\
**11** = 25%
How do I decode the battery status of my sensor in the BACnet objects of the LoRa Easy receiver?
The battery status must be read in the "Battery level" object.
The battery alert level is given on 4 levels:
**0** = 100% remaining\
**1** = 75% remaining \
**2** = 50% remaining \
**3** = 25% remaining (battery replacement planned)
I can't connect my sensor to my LoRaWAN network
If you cannot connect your transmitter to the network, first check that the switch is set to WAN mode before powering the sensor.
{% hint style="info" icon="circle-info" %}
The **change** of the switch position is only **taken into account** when the product is **unpowered**. Make sure your product is completely unpowered before adjusting the switch.
{% endhint %}
{% hint style="warning" %}
It is absolutely necessary to declare the sensor by entering its LoRaWAN keys on your network backend or on your gateway interface **BEFORE connecting the battery**.
{% endhint %}
Decoding my sensor's frames when I use it in LoRaWAN mode
To decode frames from an Enless LoRaWAN sensor, please use our decoding assistance tools: On which port should downlinks be sent in LoRaWAN?
Downlinks should be sent on port number 1.
What is a Spreading Factor?
The Spreading Factor (SF) in LoRaWAN is used to define how a sensor sends its data. The lower the SF (e.g. SF7), the faster the message is sent, with low battery consumption, but over a shorter distance. Conversely, a high SF (e.g. SF12) makes it possible to send data much farther, even with obstacles, but the transmission is slower and uses more energy. This can be compared to a person speaking quickly to someone nearby, or slowly and enunciating to be heard from far away. The choice of SF is therefore a compromise between radio range, battery life, and transmission speed.
How can I change the transmission period of my sensor in LoRaWAN mode?
Changing the transmission frequency of a transmitter in LoRaWAN is done by Downlink.
The Excel file below allows you to decode frames and generate configuration Downlinks:
**Example**: We want to change the transmission period of a 600-023 transmitter to 15 minutes.
Step 1: Please open the attached Excel file and go to the worksheet for the transmitter in question.
Step 2: Please change the period and press "Enter" to validate.
Step 3: A new Downlink taking the new period into account will be generated. Please copy this downlink and paste it into the appropriate field on your gateway. Downlinks should be sent on **port 1**.
How do I switch from one LoRaWAN network to another?
To switch a sensor from one LoRaWAN network to another, you do not need to physically intervene on the sensor. You simply need to remove it from the old LoRaWAN network, then declare it on the new LoRaWAN network.
Indeed, every 24 hours, transmitters send a LinkCheckReq message which must be confirmed by a LinkCheckAck from the network. As long as the LinkCheckReq messages are confirmed by a LinkCheckAck, the transmitter will not send a new JOIN. If the transmitters are still declared on the old LoRaWAN network, they remain connected to it. However, if they are declared on the new LoRaWAN network and are no longer provisioned on the old one, the switch to the new LoRaWAN network is carried out.
\***JOIN:** this is a LoRaWAN network access phase that makes it possible to dynamically renew the network parameters between the end device and the LoRa Server.
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