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kRaje.1
Associate III
January 9, 2023
Question

HI TEAM i tried to unlock read and write protection of stm32wle5jc controller with external j-link programmer. but now pre-flashed AT command Firmware is deleted. now AT commands are not working. can you please help to resolve this issue.

  • January 9, 2023
  • 1 reply
  • 993 views

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1 reply

Andrei Chichak
Lead
January 25, 2023

A read lock would be worthless if you could just unlock the lock and read the processor. So, what processor manufacturers do is erase the processor on unlock.

You unlocked the processor, you can now put in your new code and lock the processor. Nobody can read out your code and duplicate your product. Clever, no?

Now, if you were expecting to be able to unlock the processor, read out the code, and relock the processor, you've deleted the code at the unlock stage.

This isn't an issue, it's by design. It is for intellectual property protection.

Back to you COACH.

kRaje.1
kRaje.1Author
Associate III
May 24, 2023

hi team i have one doubt. now i want to use LORA RF Module AT commands again in my project so where can i get that AT command related firmware.