(Renova zero pod) I have been experimenting with this last year and another forum member seeked help. During this lockdown period its a bit hard to get supplies and though it would be good to share it here in this thread as well.
remove the silver retainer. Remove complete coil.
Make a new high ohm coil

Pull out the round press tabs and insert coil legs through holes.replace them.you can use the original coil wire if it's in good shape,just re-coil (wrap) it on a screwdriver

Wick it!
Replace the rubber seal.
Wet the cotton with ejuice and
* put it all back together.*
You can drop through the hole in the mouthpiece or use the bottom fill hole.
Remember that this pod is now a dripping pod 2-4drops will be adequate at a time, because it's still an MTL vape.
Hope it helps you. Let me know.

Make a new high ohm coil

Pull out the round press tabs and insert coil legs through holes.replace them.you can use the original coil wire if it's in good shape,just re-coil (wrap) it on a screwdriver

Wick it!

Replace the rubber seal.
Wet the cotton with ejuice and
* put it all back together.*
You can drop through the hole in the mouthpiece or use the bottom fill hole.
Remember that this pod is now a dripping pod 2-4drops will be adequate at a time, because it's still an MTL vape.
Hope it helps you. Let me know.