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Mirrors are welcome!
1. CF-Root 6.4 with CWM required
2. Back up your rom (in CWM)
3. Download the XXDLI3 Nandroid backup (google drive mirror), extract it and put it in /sdcard/clockworkmod/backup/ (don't change the folder name!)
4. Restore the backup
5. Install XXDLI3 Modem in CWM.
6. Wipe Data / Cache (Factory Reset)