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Last modified by Mengting Qiu on 2025/07/29 15:24
From version 49.7
edited by Mengting Qiu
on 2025/07/29 14:05
Change comment: There is no comment for this version
To version 48.2
edited by Mengting Qiu
on 2025/07/29 13:37
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 Certificate Management for -NB/-NS Models ====
325 +==== 4.1.2.5 For -NB /-NS model Certificate setting error/change certificate ====
326 326  
327 +When you set the wrong certificate or you need to re-set another certificate.
328 +Please use the following three commands：
327 327  
328 328  
329 -The -NB/-NS modules (BC660K) do not support clearing certificates via AT commands or firmware updates.
330 330  
331 -To effectively "clear" existing certificates, users may overwrite them with arbitrary data by following these steps:
332 332  
333 -1. Overwrite Certificates:
334 334  
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:
337 -
338 -AT+CACERT=123456}
339 -
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 -
349 349  == 4.2  For -CB /-CS model ==
350 350  
351 351  === 4.2.1 Upgrade the firmware to configure TLS firmware to set the certificate ===