Start with these three steps
Check the history first
If there was liquid, impact, unusual heat or suspected battery damage, stop experimenting and describe it to a specialist. Ordinary restart advice may not fit that situation.
Separate known facts from guesses
Record the last successful use and anything already observed: a screen image, sound, vibration or computer message. Do not repeatedly reconnect it to collect more clues.
Identify what is actually missing
Check accessible copies from another trusted device and name the files you cannot find. Keep the original phone while you decide how to address that gap.
Use guidance that matches the situation
Apple provides model-specific restart guidance for an unresponsive iPhone. Consult that official page for an otherwise intact device rather than mixing button sequences from unrelated models. Apple's separate safety guidance says to discontinue use when phone or battery damage is suspected.
Set a decision point before beginning any troubleshooting. If the documented step fails, decide whether you need a working phone urgently or access to unique local files. You can arrange an everyday replacement while keeping the original for assessment.
Why the original device matters
Apple's Data Protection system encrypts stored files using a hierarchy of keys and hardware encryption. In practical recovery cases, DRL may need to restore operation of the original hardware sufficiently for normal unlocking and extraction.
Keep that hardware and any parts removed during earlier work. Ask an assessor to distinguish evidence of a fault from a proposed next step. For example, a recommendation to investigate power circuitry is not confirmation that your photographs can be extracted. Request an explanation of what must become possible before the missing files can be checked.
Sources: [3] Apple [4] Data Recovery Lab NZ
Make the handover useful and private
Prepare a brief with the last known working date, incident history, earlier repair attempts and your three most important recovery targets. Describe the targets by app, date range or filename where practical. You do not need to send personal file contents just to explain their importance.
DRL's intake asks whether credentials are available, with any required secret handled separately. Request access only as the owner or an authorised representative. Identify who can approve work and receive data. If the device belongs to an employer, obtain that authority before submitting it.
Ask about the decision after assessment
DRL publishes a written-quote process with possible separately approved costs. Before sending a phone, read the current fee policy and ask how it applies if you decline the quote or the attempt cannot deliver useful data.
Also ask what you will learn from assessment, what counts as a useful partial result, and how extracted files would be delivered. Compare the answer against your missing-data list. Keep the scope and your approval in writing.
Sources: [7] Data Recovery Lab NZ
A realistic view of recovery
- A black screen alone cannot establish either recoverability or permanent data loss.
- Hardware work does not remove encryption requirements or guarantee access to every file.
Your questions, answered
Does a computer recognising the phone mean the files are available?
Should I try several recovery programs?
Can I send a phone that someone else owns?
Need help with the original iPhone?
Describe the model, what happened and which data matters. Data Recovery Lab NZ is an external specialist; ask it to confirm the assessment route for your exact device.
Sources & further reading
Primary and specialist guidance checked 27 October 2026. Features and instructions depend on the model and operating system.