# How to troubleshoot Jimi JC400 video streaming and playback

## Question

How to set up and troubleshoot Jimi JC400 video streaming and playback?

## Answer

Follow these steps in order:

1. Check that the IMEI is correct.

   ![](/files/029e194fa0938a3aa1c81cca7184351b20b060c0)
2. Check that the SIM supports SMS and has working GPRS/LTE.

   Make sure that:

   * the device can receive SMS (if you plan to configure via SMS)
   * GPRS/LTE traffic service is available
   * GSM coverage is sufficient for RTMP traffic

   <div data-gb-custom-block data-tag="hint" data-style="info" class="hint hint-info"><p>SMS service is often not available on M2M SIM cards.</p></div>
3. Check firmware with `VERSION`.

   Supported examples:

   * JC400 (JC400A): `[VERSION]KMC28_JC400_WABA_STD_V4.3.2_220328.1750,[BUILD]2022-03-28 14:50`
   * JC400D: `[VERSION]JC400D_WAVA_DMS_V4.2.13_210716.2013_BUILD_2021-07-16`
4. If the firmware is old, update via the SD card `update.zip`.
   * [Download](https://drive.google.com/file/d/1Y56Tk5Xv3KGh-7J6XPdzs6tQUKqEglca/view?usp=sharing) and copy `update.zip` to the device SD card (don't unpack it).
   * Insert the SD card into the device and power it on.
   * The device updates firmware automatically.
5. Configure the timezone UTC+0 and the APN + server settings.

   EU server IP: `52.57.1.136`

   US server IP: `13.52.37.2`

   Send commands one by one.

   Substitute `{apn}`, `{apn_user}`, `{apn_pass}` (without braces).

   EU:

   ```
   COREKITSW,0#
   SERVER,0,52.57.1.136,47755#
   APN,{apn},{apn},,,,,,{apn_user},,{apn_pass},,,,#
   ```

   US / Latin America:

   ```
   COREKITSW,0#
   SERVER,0,13.52.37.2,47755#
   APN,{apn},{apn},,,,,,{apn_user},,{apn_pass},,,,#
   ```

   If APN user/pass must be blank, leave fields empty:

   ```
   APN,{apn},{apn},,,,,,,,,,,,,#
   ```
6. Retry activation in the UI when online.

   ![](/files/c1f52d919b5c3b6e65cc88f674c19155630fe0ba)
7. If the device is offline unexpectedly, verify it is powered on and has sufficient battery charge.

## If default commands are disabled

If "send default settings" is disabled in Admin Panel, or activation retry doesn't push settings, send the following commands one by one.

Substitute `{IMEI}` with your device IMEI (no braces).

EU:

```
COREKITSW,0
UPLOAD,http://52.57.1.136:7514/upload/{IMEI}
FILELIST,http://52.57.1.136:7514/filelist/{IMEI}
RSERVICE,rtmp.navixy.com:1935/encoder
TIMER,ON,60
ANGLEREP,ON,10
SOSALM,ON,0
UPLOADSW,SOS,ON
UPLOADSW,CRASH,ON
UPLOADSW,RAPIDACC,ON
UPLOADSW,RAPIDDEC,ON
UPLOADSW,RAPIDTURN,ON
SERVER,0,52.57.1.136,47755#
```

US / Latin America:

```
COREKITSW,0
UPLOAD,http://13.52.37.2:7514/upload/{IMEI}
FILELIST,http://13.52.37.2:7514/filelist/{IMEI}
RSERVICE,rtmp.navixy.com:1935/encoder
TIMER,ON,60
ANGLEREP,ON,10
SOSALM,ON,0
UPLOADSW,SOS,ON
UPLOADSW,CRASH,ON
UPLOADSW,RAPIDACC,ON
UPLOADSW,RAPIDDEC,ON
UPLOADSW,RAPIDTURN,ON
SERVER,0,13.52.37.2,47755#
```

## Links

* [Air Console](/docs/admin/devices/air-console.md)


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