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Last modified by Mengting Qiu on 2025/07/29 15:24
From version 49.3
edited by Mengting Qiu
on 2025/07/29 13:58
Change comment: There is no comment for this version
To version 49.7
edited by Mengting Qiu
on 2025/07/29 14:05
Change comment: There is no comment for this version

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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 Overwriting Certificates on -NB/-NS Models ====
325 +==== 4.1.2.5 Overwriting Certificates on -NB/-NS Models Certificate Management for -NB/-NS Models ====
326 326  
327 327  
328 +
328 328  The -NB/-NS modules (BC660K) do not support clearing certificates via AT commands or firmware updates.
329 329  
330 330  To effectively "clear" existing certificates, users may overwrite them with arbitrary data by following these steps:
... ... @@ -331,9 +331,20 @@
331 331  
332 332  1. Overwrite Certificates:
333 333  
335 +Use the standard AT commands (AT+CACERT, AT+CLICERT, AT+CLIKEY) to write non-certificate data (e.g., random strings like 123456).
336 +Example:
334 334  
338 +AT+CACERT=123456}
335 335  
340 +AT+CLICERT=123456}
336 336  
342 +AT+CLIKEY=123456}
343 +
344 +2. Upload Valid Certificates (Optional):
345 +
346 +After overwriting, users may proceed to upload new valid certificates if needed.
347 +
348 +
337 337  == 4.2  For -CB /-CS model ==
338 338  
339 339  === 4.2.1 Upgrade the firmware to configure TLS firmware to set the certificate ===