How do I reprogram a non reprogrammable fan?

I just got one of those light up fans that display letters while they spin, and it says on the box that it was programmable, but it seems it was only programmable by the person assembling it, because there is no way to change the letters that I can see. I was just wondering if anyone knew how to open it up and reprogram what it says.

jkoyne6 years ago
How do you reprogram the message if the fan only has one button but has a 4 pin port?
caitlinsdad7 years ago
Similar to this

- There are three red buttons located on one side of each fan (shown above), and a single "On/Off" button on the opposite side.
- To activate the fan, push the single button.
- Once the fan is on, you can then program a custom message.
- To program a message, push and hold the middle of the three red buttons labeled "PROGRAM" until you see the cursor appear on the fan blade.
- Press the top red button to scroll through the alphabet.
- Once you've decided on a letter, press program to go to the next character space.- The bottom red button allows you to choose symbols such as !, @, #, %, etc. as well as numeric characters 0 - 9.
- When you are finished with your message, push and hold "PROGRAM" for 2 seconds to finalize.
- To program another message, simply push the "PROGRAM" button (do not hold) and the fan will appear blank.
- Repeat above steps to program up to 4 custom messages!

If not, then it was probably mispackaged and sold in dollar stores.  You would have to figure out how to access the chip inside which may only work with the message burned into the chip's memory.  Maybe some spots on the circuit board that look like they would be attached to external switches or input and then you could experiment.
martzsam (author)  caitlinsdad7 years ago
It only has an on/off switch. I got the fan at a "Beat the Heat" promotion at JPL. I think it just has a chip that has the information burned in as you put it. But it could also have a reprogrammable chip. I'm gonna have to open it up to find out. Thanks for the reply though!