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Hello good morning I have an external hard drive 2.5 "to stop working for a power failure, the drive letter appeared but windows told me that he had no format, ufs explorer I could recover half of the data until it has ceased to admit, I have misused and lost testdisk partition information and no longer recognizes him, went back to testdisk and nothing still does not recognize the disk, I tried R-Studio, GetDataBack, pc recovery, ontrack recovery and some more without result appears disk without partitions size 0
someone please tell me how to regain the size information, cylinders, heads and sectors of the disk and restore the partition with my data, are very important.
thanks