An important audio file was deleted when the application that created the file was updated.
We made a raw image of the phone's internal flash-drive. The image is 15G.
The phone is a Huawei Ascend P7-L10.
We have tried to undelete the file using Recuva and Sluethkit.
We have also tried to data carve all audio with PhotoRec.
We were able to find the complete filename and path by grepping the image, but we were not able to find any pointers to the data blocks.
Your task is to either recover the addresses of file's data blocks and reconstruct as much of the file as possible
or work with the filesystem's inodes and recover the data using standard tools (e.g. Sluethkit's blkls).