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iPhone Won’t Turn On · Diagnosed by Post · UK-Wide

iPhone won’t turn on?

A £40 diagnostic finds out why — and comes off the repair.

Black screen, boot loop, stuck on the Apple logo, or completely dead? A phone that won’t turn on is rarely “gone”. It’s usually a battery, a screen, a charging fault or software — and each has a very different price. We find out which, then quote.

✓ Real diagnosis, not a guess· ✓ £40 comes off the repair· ✓ Free return if unrepairable
An iPhone with a black screen, held in a hand
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4,000+Devices repaired
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12-monthWarranty
Next-dayReturn postage
Apple-trained& certified

Which kind of “won’t turn on” is it?

These all get described as “dead”, but they point to different faults. Pick the closest match in the quote tool — it helps us prepare the right diagnostic.

⚠ If the phone rings, vibrates or makes sounds when you plug it in but the screen stays black, the phone is on — the screen has failed. That’s a screen repair at the normal fixed price, not a diagnostic.

How much does it cost to fix an iPhone that won’t turn on?

There’s no single price because there’s no single cause. It starts with a fixed £40 diagnostic: we check power, battery, charging circuit, screen and software, and tell you exactly what it needs. Go ahead and the £40 comes off that repair’s normal fixed price. If it’s beyond economic repair, that’s all you pay, and we return the phone free — or buy it from you for parts.

£40 diagnostic — deducted from the repair

If the cause is the screen, battery or charging port, you pay that repair’s normal fixed price with the diagnostic taken off. If it’s software, the diagnostic usually is the repair.

Start a diagnostic quote →

If you already know it’s the screen or battery, quote that repair directly instead. Run the quote tool — it confirms the exact repair in under 2 minutes.

The four things that make an iPhone “dead”

Most phones that arrive as “won’t turn on” leave as one of these four repairs. The diagnostic is how we find out which — without guessing at your expense.

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Often it’s the screen

A phone that vibrates or rings but shows nothing has a dead display, not a dead phone. Fixed at the normal screen price — see the screen repair page.

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A battery that won’t wake

A worn or swollen battery can drop below the voltage the phone needs to boot. Replaced at the normal battery price, health restored.

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A charging fault

If no power is getting in, nothing turns on. A blocked or failed port — or a damaged charging circuit — is diagnosed before anything is replaced.

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Software recovery

Boot loops, failed updates and “iPhone disabled” are often recoverable with a restore. You’ll lose data unless you have a backup — we tell you before we start.

A real specialist — not a faceless mail-in factory

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One technician, end to end

The same technician carries out and tests your repair from quote to return — no hand-offs, no queue.

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Genuine parts available

Apple Self Repair trained, Samsung & Google certified. Genuine and quality aftermarket — your choice, clearly priced.

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12-month warranty

Every repair covered for a full year. If anything isn’t right, we sort it.

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Fully by post, UK-wide

Free next-day return postage, wherever you are in the UK.

From quote to fixed in three steps

1
Get your quote

Use the quote tool or message us. Exact price, no surprises.

2
Post it in

Prepaid label sent once agreed. We keep you updated and test everything.

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Back fast

Repaired, tested and returned with free next-day postage and a 12-month warranty.

Dead iPhone? Let’s find out why.

Get an exact quote in under 2 minutes.

Common questions

Both are genuine options here. The diagnostic tells you the real repair cost so you can decide. If you’d rather not repair, we buy iPhones that won’t turn on in any condition and pay by bank transfer the same day it arrives.

If the fault is hardware — screen, battery, charging — no, your data is untouched. If the phone needs a software restore, the data is wiped unless you have an iCloud or computer backup. We always tell you before a restore.

Some board faults are repairable, some aren’t economical. Either way you get a straight answer. If it can’t be fixed, the £40 is the only charge and the phone comes back free — or we buy it for parts.

Usually the same day the phone arrives. You get a WhatsApp message with what we found and the price, and nothing is done until you say yes.

iPhone won’t turn on — diagnosis and repair by post across the UK

Cell Devices is a Guildford-based specialist that diagnoses and repairs iPhones that won’t turn on, for customers across the United Kingdom by post. Whether the phone is completely dead, stuck on the Apple logo, caught in a boot loop or showing a black screen, our technicians check the power and charging circuit, the battery, the display and the software for a fixed £40 — then quote the repair that’s actually needed, with the diagnostic deducted.

Repair it or sell it?

Both are on the table. If the repair makes sense you get a fixed price with the diagnostic taken off. If it doesn’t — or you’d simply rather move on — we buy iPhones that won’t turn on in any condition and pay the same day, usually more than automated buyers who reject dead phones outright.

Why choose a specialist?

You deal with one experienced repairer from start to finish — not a counter queue or an anonymous mail-in factory. With over 4,000+ devices repaired, Apple Self Repair training, and Samsung and Google certification, Cell Devices combines big-chain credentials with genuine personal service. Get an instant quote, or explore all repair services.