ISDT C4 teardown, fan replacement, how to open

isdt-c4.md

Had trouble finding info on how to open the ISDT C4, until I finally somehow found this video: https://www.youtube.com/watch?v=K6x7sLFgUHc

There's a total of 6 screws. 2 in the battery bay, and 4 under the screen:

Maybe putting this here, will make it easier for google...

Other stuff

Some other cool mods/hacks I found on thingiverse and might try myself at some point:

• Bigger fan: The info on how to open I found in this video/3D build allowing the use of a bigger fan https://www.thingiverse.com/thing:3859494
• Adapter that allows charging 4 18650 at once instead of only 2. "Abuses" the 4 AA ports, overall still a speed benefit though when working with many cells: https://www.thingiverse.com/thing:3051000

What kind of connector does the fan use? Is it a 2-pin Micro JST like this?
https://webshop.domoticx.nl/index.php?route=product/product&path=69_331&product_id=1636

Also, do you think the MF25100V2-1000U-A99 fan would work as a drop-in replacement?
MF25100V2-1000U-A99

It's similar to another model that was recommended on Reddit, but is no longer available in Europe, the MC25100V2-000C-A99.

Thanks!