Err21002 Miracle Box

Optional: Map persistent communication ports using a Virtual Serial Port Driver to link COM1 and COM2 manually. 4. Switch to Custom Download Agents (DA)

For devices featuring an integrated, inbuilt battery, standard cable disconnection is insufficient. Disconnect the mobile phone from the computer hardware. Remove the rear back cover panel of the device carefully. err21002 miracle box

You're looking for information on the "Err21002 Miracle Box". Here's what I found: Optional: Map persistent communication ports using a Virtual