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Last modified by Mengting Qiu on 2025/07/29 15:24
From version 52.2
edited by Mengting Qiu
on 2025/07/29 15:20
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To version 44.1
edited by Mengting Qiu
on 2025/03/06 13:42
Change comment: Uploaded new attachment "image-20250306134213-1.png", version {1}

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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 -
333 -To effectively "clear" existing certificates, users may overwrite them with arbitrary data by following these steps:
334 -
335 -**Scenario A:** Clearing Existing Certificates
336 -
337 -1.Flash the certificate-provisioning firmware: **[[Set up TLS certificate - Dropbox>>https://www.dropbox.com/scl/fo/1ykfsesmr3702tj3kp663/AOOyH1GiVEOGR41gASuiDk0?rlkey=1q7a1b5yvjgt87d16w8tt0cum&st=vdy765ut&dl=0||data-sider-select-id="830d1b64-cb24-48b3-91e4-49da5c3f0783"]]**
338 -
339 -2. Use the standard AT commands (AT+CACERT, AT+CLICERT, AT+CLIKEY) to write non-certificate data (e.g., random strings like 123456).
340 -Example:
341 -
342 -AT+CACERT=123456}
343 -
344 -AT+CLICERT=123456}
345 -
346 -AT+CLIKEY=123456}
347 -
348 -
349 -
350 -2. Check for success responses after each command:
351 -
352 -* Expected output:
353 -
354 -[[image:1753772253801-330.png||height="495" width="620"]]
355 -
356 -* If you get "Failure", retry or check module connectivity.
357 -
358 -3. Later, when you have real certificates, overwrite the dummy data with actual certificates.
359 -
360 -
361 361  == 4.2  For -CB /-CS model ==
362 362  
363 363  === 4.2.1 Upgrade the firmware to configure TLS firmware to set the certificate ===
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373 373  
374 374  Methods to Update Firmware:
375 375  
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 +
376 376  * Update through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART_Access_for_NB_ST_BC660K-GL/#H4.2UpdateFirmware28Assumethedevicealreadyhaveabootloader29]]**.
377 377  
378 378  === 4.2.2 Configure certificate ===
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438 438  
439 439  After successful execution, as shown in the following figure.
440 440  
441 -[[image:image-20250306134213-1.png]]
407 +[[image:image-20240528174502-15.png]]
442 442  
443 443  Display (% style="color:blue" %)**"Successfully configured CA certificate."**(%%) If the configuration is successful, otherwise it is considered configuration failure.
444 444  
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561 561  Display(% style="color:blue" %)** "Successfully configured client private key."**(%%) If the configuration is successful, otherwise it is considered configuration failure.
562 562  
563 563  
564 -==== 4.2.2.4 Re-upgrade the firmware ====
530 +==== 4.2.2.4 For -CB /-CS model Certificate setting error/change certificate ====
565 565  
566 566  
567 -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]].
568 -
569 -
570 -==== 4.2.2.5 For -CB /-CS model Certificate setting error/change certificate ====
571 -
572 -
573 573  (% data-sider-select-id="7c5a8abc-e707-467b-ac02-db0a89098320" %)When you set the wrong certificate or you need to re-set another certificate.
574 574  Please use the following three commands：
575 575  
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