When you cannot recover files by any Data Recovery programs, it properly means the disk is wiped or not functional. Although a wiped out disk cannot be recovery by data recovery services companies, disks that are not functional may have a try.
Most data recovery services companies would provide a pickup service for the disks you’re about to recover, so choose a place before you call them
You can refer to LC Technology Data Recovery Company, it recovers data from Digital Media, Hard drive, and Optical Media.
They have Live Chat like ours, you can ask for more info before you make the call.
If you want to recovery data from SanDisk, the Non-functional one, you can turn to this company, it’s on their recommendation list.
The LC Technology also has office in Tokyo, Japan, and it will open another office in China Q1 2018.
The alternative data recovery company in Asia is DriveSavers, another recommended data recovery services provider for SanDisk users. Of course, other brands are supported, they are the:
The Industry Leader in Data Recovery and Customer Service
This company actually has many services to provide, no matter you are recover personal data or business info you deleted, formatted or lost accident inadvertently.
And it has many videos and introductions on Youtube. Try to watch them for more info.