yes the recovery.img from previously should work fine.
Follow along with the video below to see how to install our site as a web app on your home screen.
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Quote taken from here:Captain_Throwback said:If you'd prefer to root/NAND unlock using Revolutionary, you can substitute the Froyo ROM file (in Step 10) with a Gingerbread ROM file (any version up to 4.54). The latest version unlockable with Revolutionary can be found here.
- theMikMik