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Preparation (Checklist Before Installation)

Hardware

1 x DS Lite / DSi/DSi XL/ 3DS
1 x M3i Zero Card (Slot-1)
1 x USB Micro SD memory card reader
1 x USB firmware writer
1 x Micro SD/SDHC Memory Card

Software (Please Click the Driver / Firmware Name for the Latest Download)

F_CORE_V1.8.2	System V4.9a X
F_CORE.DAT	SYSTEM

Installation

Note:

• All machines are upgradeable: even your machine has already been in firmware 1.4.2. And no need to find another bootable machine to perform the upgrading process. 
• Risk-free: flash card will not be damaged even the upgrading process is not successfully.
   

1. Unzip the firmware ( F_CORE_V1.8.2 ) and driver ( System V4.9a X) downloaded (using Winrar) on your PC
   1. Winrar can be downloaded from www.download.com by searching for Winrar at the Search.
   2. Unzip the files mentioned under the Software Preparation above, you will have one folder and one file as follows.
      

      F_CORE_V1.8.2	System V4.9a X
      F_CORE.DAT	SYSTEM

      
      
2. Select all the unzipped files and copy them to the root of microSD memory card
   
    
3. Insert Micro SD/SDHC card into the M3i
   
    
4. Put the upgrade cable into the M3i. The shinny metal contact of the cable, i.e. the side with the ARROW on it, should face the BACK of the M3i.
   
    
5. Plug the USB port into your PC, or anything that has a port that will give it power
   
6. The M3i should blink for about 15~20 seconds. After it stops blinking, your M3i is flashed.
   
   
    Note:
   LED blinks – in progress
   LED lights off – no power or complete
   LED lights on – error (no "f_core.dat" or wrong file etc.)
   Upgrade In Progress
   
   
7. If the LED light turns RED (without flashing), it means the update is unsuccessful. Please repeat the whole process from step 1 after you checked the following: Possible Reasons For Upgrade Failure
   • Put the upgrade file into sub directory, not the root directory, and the firmware writer can not detect the upgrade file. 
   • USB port can not provide a stable power, please change a stable USB port.
   • There are too many disk defragments in the MicroSD memory card, which needs to be formatted before upgrade. For memory card formatting, please refer to the guide under Format a MicroSD/SDHC card above.