Submit bug reports and feature requests for the JJOS-XL and 2XL
By softpunch Sat Feb 27, 2021 10:20 pm
I have an older, blue MPC1000. I recently purchased OS2XL and would like to use OS3. But when I try to install it, it just erases OS2XL and leaves only the free JJOS.

Here's what I've done:

•From the free JJOS (3.16), I can only see the file for OS2XL. So, from the load screen of Free JJOS, I installed OS2XL (3.73).
• After installing OS2XL, I reset it and held the erase key.
• In OS2XL, I entered the password and unlocked it.
• From the load screen in OS2XL, I selected the file for OS3 (2.4) and hit Do It.
• The installer pops up, I confirmed it, it erases the flash memory, it rebuilds it, it says it's finished, and it tells me to reboot.
• I reset the MPC, and when it turns back on, all I have is the free JJOS. I don't have OS3 or even OS2XL.

I've tried it a few times. I've tried holding the erase button while I reset, and I've tried holding the tap tempo button while I reset, but the outcome is always the same.

What should I do?
By softpunch Sun Feb 28, 2021 5:33 pm
Never mind!

I thought I had the latest free JJOS, but I had 3.12.

I updated to 3.16, and the OS3 install worked!