HP 50g ROM upgrade using a SD card

Takes less than 3 minutes!

Double Click the above > button.  Buffering will takes about 10 seconds, depending on your internet connection. More options available from Google Video.

Here is the procedure:

1. Download the HP50g ROM update.

2. Copy the files: ?????.bin and update.scp that should be located in the zip folder into a SD card formatted in FAT File System (not FAT32).
3. On the calculator, Press and hold the + and - Button and press on the RESET button using a paper clip or other blunt object.
4. Release the RESET button, wait 2 second and release the + and - keys. Your calculator screen should display the update and self test menu.
5. Insert the SD card (upside down) in the calculator.
6. Press on 1 (Update ROM CODE)
7. Press on 2 (Update from SD CARD)
8. The calculator should start updating the ROM (you will see flashing messages telling you about the update process). This should take around 1 minute.
9. When the upgrade is finish (the calculator displays: "Update Finish, waiting for reset"), press the reset button, your calculator has been upgraded.

On Step 7 if you get the message "NO CARD, OR ERROR", your SD Card maybe a capacity that is greater than the calculator (with boot version 3.19 or smaller) can handle or SD is not formatted to FAT File System.  Try using a smaller capacity SD Card or reformat the card to FAT File System.  Read this posting.

Using PC to reformat SD card to FAT File System:

• Right click on the removable disk.
• Select Format.
• On the Format Removable Disk Dialog, change File System to "FAT".
  
• Click the "Start" button.

This procedure is applicable for HP49g+.