CAUTION: Devices OEM lock and unlock state can only be changed 6 times (unlock -> lock -> unlock -> lock -> unlock -> permanent lock). After that, when you lock it again, the OEM will be permanently locked!!!
This section explains how to OEM lock and unlock the device.
The device is OEM locked by default.
Use the µFR Nano Online flasher one-click – Update tool to lock and unlock the device.
This section describes how to OEM lock the device.
This section explains how to OEM Unlock the device.
***Unlocked device restrictions: ESP32 efuse BLK1 and BLK3 are reserved and cannot be used. Also, flash encryption has to be disabled.