Step 1. A MICRO SD card of 2GB or more should be available. The MICRO SD card made by Sandisk, Kingstone, or Kingmax is recommended.
Step 2. Format the MICRO SD card (This operation is optional).
Step 3. Make sure that there is an UPDATE.APP under the dload. Copy the Main package of dload in PC to dload of SD card.
Traducelo, aunque se creo que se entiende bien.