To ensure no data are lost, the best thing is to do nothing. If the hard disk is making funny noises or sometimes does not work, then connection via IDE-USB adapter CANNOT help, a new mains adapter CANNOT help, and data retrieval software CANNOT help. Solving difficult cases requires know-how, experience, and special equipment.

- What can I do myself?

- Can free data retrieval software help?

- Does changing the circuit board help?

- My friend has tried, what can I do now?

- Put the hard disk in the fridge?