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Last modified by Mengting Qiu on 2025/07/29 15:24
From version 49.2
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:
331 331  
333 +1. Overwrite Certificates:
332 332  
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:
333 333  
338 +AT+CACERT=123456}
334 334  
340 +AT+CLICERT=123456}
341 +
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 +
335 335  == 4.2  For -CB /-CS model ==
336 336  
337 337  === 4.2.1 Upgrade the firmware to configure TLS firmware to set the certificate ===