case about nRF54LM20B & (protection-set All)

Question

Hi, 
 1. How to set read protection and how to verify read protection for nRF54LM20B? 2. The test DK is PCA10184 0.7.0. 3. My test is as follows: Read protection will never take effect. 
 
 Microsoft Windows [版本 10.0.26200.8457]
(c) Microsoft Corporation。保留所有权利。

C:\Windows\System32>nrfutil device recover
v Recovered 1051802619
C:\Windows\System32>nrfutil device recover
v Recovered 1051802619
C:\Windows\System32>nrfutil device erase
v Erased 1051802619
C:\Windows\System32>nrfutil device protection-set All
v Protection was set on the Application core of 1051802619
C:\Windows\System32># 例：从 0x20000000 读取 16 字节，按 8bit 宽度显示
'#' 不是内部或外部命令，也不是可运行的程序
或批处理文件。

C:\Windows\System32>nrfutil device read --address 0x20000000 --bytes 16 --width 8
1051802619
0x20000000: 46 D4 EB 8B BB 72 3E FB 7A 33 DD 46 A5 2E 97 DF |F....r>.z3.F....|



C:\Windows\System32>nrfutil device protection-set All
v Protection was set on the Application core of 1051802619
C:\Windows\System32>nrfutil device read --address 0x20000000 --bytes 16 --width 8
1051802619
0x20000000: 46 D4 EB 8B BB 72 3E FB 7A 33 DD 46 A5 2E 97 DF |F....r>.z3.F....|



C:\Windows\System32>nrfutil device protection-get
serial_number: 001051802619
 core: Application
 access status: Debug access is enabled (status value: None)
 erase protection: false


C:\Windows\System32>nrfutil device protection-get
serial_number: 001051802619
 core: Application
 access status: Debug access is enabled (status value: None)
 erase protection: false


C:\Windows\System32>nrfutil device read --address 0x20000000 --bytes 16 --width 8
1051802619
0x20000000: 07 D4 CF 07 BB 70 3E F9 7A 33 DD 46 B5 8E 87 DF |.....p>.z3.F....|



C:\Windows\System32> 
 Best regards, 
 Peter.Min