[Taishar]

From personal experience, you can't go from Olipro 2.40 to Nuespl 2.47 directly. When I tried it, the phone would reboot, then get stuck on a screen that said Nuespl 2.07... I'd leave it there forever, and nothing would happen. After resetting, it would be back to Olipro 2.40.

To get to Nuespel 2.47 I had to flash back to a official sprint rom, run the Nuespl relocker to return it to default, and then use the Nuespl 2.47. Once my phone was back to stock condition, it flashed over to the Nuespl perfectly.

It was kind of a hassle. Not sure if there was any benefit going from Olipro 2.40 to Nue 2.47, but what's done is done :-p