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Last modified by Mengting Qiu on 2025/07/29 15:24
From version 49.10
edited by Mengting Qiu
on 2025/07/29 14:15
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To version 41.1
edited by Mengting Qiu
on 2025/03/06 11:39
Change comment: There is no comment for this version

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1 -Dragino -NB/-CB device connection to AWS platform instructions
1 +Dragino NB device connection to AWS platform instructions
Content
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322 322  After completing the certificate configuration, Burn the [[bootloader>>https://www.dropbox.com/sh/u0uzvvnn58yrie4/AAAvvF_KRveNgmDejzp23ziLa/NB-IoT/Bootloader?dl=0&subfolder_nav_tracking=1]] firmware first, then re-burn the original working [[firmware>>https://www.dropbox.com/sh/u0uzvvnn58yrie4/AACREHllkTe0rATD4ZOqddyga/NB-IoT?dl=0]].
323 323  
324 324  
325 -==== 4.1.2.5 Certificate Management for -NB/-NS Models ====
326 -
327 -
328 -The -NB/-NS modules (BC660K) do not support clearing certificates via AT commands or firmware updates.
329 -
330 -To effectively remove existing certificates or test certificate upload functionality, users may overwrite them with dummy data.
331 -
332 -To effectively "clear" existing certificates, users may overwrite them with arbitrary data by following these steps:
333 -
334 -**Scenario A:** Clearing Existing Certificates
335 -
336 -If users want to remove old certificates:
337 -
338 -1. 
339 -Connect to the module via serial/USB and open a terminal (e.g., PuTTY, Tera Term).
340 -
341 -
342 -
343 -Use the standard AT commands (AT+CACERT, AT+CLICERT, AT+CLIKEY) to write non-certificate data (e.g., random strings like 123456).
344 -Example:
345 -
346 -AT+CACERT=123456}
347 -
348 -AT+CLICERT=123456}
349 -
350 -AT+CLIKEY=123456}
351 -
352 -2. Upload Valid Certificates (Optional):
353 -
354 -After overwriting, users may proceed to upload new valid certificates if needed.
355 -
356 -
357 357  == 4.2  For -CB /-CS model ==
358 358  
359 359  === 4.2.1 Upgrade the firmware to configure TLS firmware to set the certificate ===
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369 369  
370 370  Methods to Update Firmware:
371 371  
340 +* (Recommended way) OTA firmware update via BLE: [[**Instruction**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE_Firmware_Update_NB_Sensors_BC660K-GL/]].
341 +
372 372  * Update through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART_Access_for_NB_ST_BC660K-GL/#H4.2UpdateFirmware28Assumethedevicealreadyhaveabootloader29]]**.
373 373  
374 374  === 4.2.2 Configure certificate ===
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376 376  
377 377  After upgrade the firmware, the serial port displays as follows：
378 378  
379 -[[image:image-20250306114107-2.png||height="371" width="744"]]
349 +[[image:image-20240528174330-13.png||height="286" width="568"]]
380 380  
381 381  
382 382  ==== 4.2.2.1 Configure CA certificate ====
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434 434  
435 435  After successful execution, as shown in the following figure.
436 436  
437 -[[image:image-20250306134213-1.png]]
407 +[[image:image-20240528174502-15.png]]
438 438  
439 439  Display (% style="color:blue" %)**"Successfully configured CA certificate."**(%%) If the configuration is successful, otherwise it is considered configuration failure.
440 440  
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557 557  Display(% style="color:blue" %)** "Successfully configured client private key."**(%%) If the configuration is successful, otherwise it is considered configuration failure.
558 558  
559 559  
560 -==== 4.2.2.4 Re-upgrade the firmware ====
530 +==== 4.2.2.4 For -CB /-CS model Certificate setting error/change certificate ====
561 561  
562 562  
563 -After completing the certificate configuration, Burn the [[bootloader>>https://www.dropbox.com/scl/fo/ztlw35a9xbkomu71u31im/AE23WqlQ8CKU4cuy-sP1JkM/Utility/NB-IoT%20Bootloader?rlkey=ojjcsw927eaow01dgooldq3nu&e=1&subfolder_nav_tracking=1&dl=0]] firmware first, then re-burn the original working [[firmware>>https://www.dropbox.com/scl/fo/ztlw35a9xbkomu71u31im/ANd2flSqspRRXl-ksF6gUqk/LTE-M?dl=0&rlkey=ojjcsw927eaow01dgooldq3nu&subfolder_nav_tracking=1]].
564 -
565 -
566 -==== 4.2.2.5 For -CB /-CS model Certificate setting error/change certificate ====
567 -
568 -
569 569  (% data-sider-select-id="7c5a8abc-e707-467b-ac02-db0a89098320" %)When you set the wrong certificate or you need to re-set another certificate.
570 570  Please use the following three commands：
571 571  
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