EC200U QuecPython Firmware Recovery After Encrypted Firmware Deployment

In the EC200U, I combined the firmware and scripts and encrypted them according to the procedure described in the link below. I then uploaded the encrypted firmware to the module, and everything worked correctly.

However, after reverting the module by flashing the standard QuecPython firmware again, I am experiencing an issue where the file system indicates that the device is not connected, even though the EC200U is physically connected to the computer.

Is there a way to perform a factory reset or complete recovery of the EC200U so that the module can be restored to its original QuecPython state and the QuecPython firmware and file system can function normally again?

Any guidance on the correct recovery or flashing procedure would be greatly appreciated.

Please view the images below

Dear customer

your test steps are as follows:

1, flashing the firmware with merged encrypted scripts. It work fine.

2, fiashing the QPY_OCPU_V0005_EC200U_CNAA_FW. It work abnormal.

am i correct?

if so, could you send the firmware with merged encrypted scripts to me .let me try on my side