Flash-drive recovery: when the fault is on the board
Mark's data recovery experience includes replacing USB controller components on flash drives and removing storage chips to read them separately. This is work on the electronics themselves. It is one reason an unreadable drive needs assessment before deciding whether the files are lost.
Experience beyond recovery software
The work has included replacing small components on circuit boards and removing MMC storage chips for reading in separate equipment. His wider recovery experience includes mechanical hard drives with seized platters and circuit-board swaps. These are methods used on different faults, rather than a procedure that fits every drive.
The first question is what has failed and which approach is suitable for that device. Replacing a controller or removing a chip does not guarantee usable files. The device design and the condition of its storage matter, and an assessment may find that recovery is not practical.
Preserve the device and explain what matters
If important files are missing and the drive is unreliable, stop using it and discuss recovery before trying more repairs. Do not format it in response to a computer prompt. Avoid heating, opening or soldering it yourself. Keep all parts if it has already been damaged or opened.
Describe what happened and any recovery attempts already made. Say which files matter most and whether another copy exists. A drive's replacement price says little about the value of its contents, so agree the assessment and any further work separately.
Discuss the chances and the next step
Across his recovery work over the years, Mark estimates a success rate of around 75%. The faults and devices vary widely, and some cannot be recovered. An assessment is needed to discuss the options for your device and agree on any further work.
If files are recovered, check the ones that matter to you and make separate backup copies. The ACSC guidance below explains backup options. Recovering files and trusting the original device for continued use are separate decisions.