Good evening Dawn and Balletmom, I hope you were able to play with your Pleos again. I just found my beloved Pleo (Maris) after several years, still in her sleeping position, but haven't quite found her battery yet, and there's no guarantee she'll wake up after this time. And thanks for the suggestion, Chris.

I just pulled our original Pleo out for our grandson and found the batteries need replacing.  UGH...on a mission now.

Thank you for posting the battery information.  I want to revive our original Pleo for my grandson and realized one of the batteries has corroded.  I will try to order the ones you mention.  I will not be able to solder anything.  Does this mean I can leave the tabs as they are, fold them down, and tape them in place?

Thank you again!!!  I could not even find some overpriced ones online.

hmmmmm... He's not doing anything
And after he just does the same thing as before

-PleoLifeDino

Thank you for replying!
I’m 100% sure he is a ugobe not an RB, there’s no battery in his foot.
I’m going to try the 1.1.1 and the 2.0.1 now

-PleoLifeDino

A second thought just to be sure, when you do an update, you put the SD card in, start your pleo, and when the update is finished it says "Huh?".  You then have to turn the pleo off and remove the SD card. 

I would actually suggest using the OS 1.1.1 or 2.0.1, not the 1.0 for a non-RB pleos.  The POP OS and 1.0 are really more for trying to get a bricked or corrupted OS pleo functioning. 

Do you know for sure if your pleo is one of the original "classic" models, or the newer (but still old) Pleo RB?  It is very important to know this as using the wrong upgrade/downgrade can make a pleo non-functional.

one key way to identify if you have a pleo RB is to look at the feet.  Does one of them have a battery in it?  If so, it's an RB, and you might try replacing that battery.

So, I tried all the different versions but it doesn't do anything, Pleo just stays quiet.
And after, Pleo just does the same thing,
he makes a "HUH?" sound and moves a little.
I don't know what to do!!!???

-PleoLifeDino

The link - http://bobthepleo.com/forums/index.php/topic,5738.msg68279.html#msg68279

Note: This is my second Pleo and I have never seen it work, and the seller said it did the same thing a couple years ago but I assumed it was a battery problem.

And I want to add that I made the battery pack I use with a
6×AA battery holder and 6×1.2v 2000mAh Panasonic eneloop batteries,
the battery pack is working perfectly,
it reads 8.06v when fully charged,
I also added the thermistor from the original battery.
I would think it is software,
and that brings me back to "Reset Pleo with 1.0 downgrade or POP OS?".
I still don't exactly know which software to use or what to do with it,
you can check "Reset Pleo with 1.0 downgrade or POP OS?",
if you have any idea plzzzzz give some feedback.

-PleoLifeDino