Coronas are Newer. They need a crystal oscillator to glitch, trinity's dont. They have slower boot times usually (unless you use a more expensive chip. Or teak the other ones a bit). Corona's have been more reliable in my opinion. 4gb coronas are a pain in the ass sometimes. but 4gb trinity's are the same as all the others.

VMxJASPER wrote i have a jasper rgh and a corona rgh but i dont understand the difference between the trinity and corona

They are just motherboard revisions. As far as the end user of the RGH is concerned they are no different. Since the updated Xell version for Corona was released there is no difference between them functionally.

Trinity and corona are different motherboard types

Corona need extra QSB and an a chip with oscillator to perform the RGH hack

Also apart from corona v1 they have a 4GB NAND they are also newer than the trinity model