Samsung Phone Repairs

Which Galaxy do you have, and why it matters

Samsung releases several phones within the same generation, and they share almost no repair parts. A Galaxy S24 and a Galaxy S24 Ultra use completely different display assemblies and different batteries. The Ultra models in particular are larger, use a different panel and carry a different camera system, so they are quoted separately from the base model every time.

To identify your Galaxy exactly, open Settings, scroll to About phone, and read the Model name and Model number fields. The model number begins with SM followed by a letter and four digits, for example SM-S928B.

If the screen is too damaged to read, the model number is printed in small text on the SIM tray, or under the rear cover on older models. ExpressTech identifies the model on arrival if you are unsure, at no cost.

Galaxy symptoms, what causes them, and which repair each needs

A green, pink or white vertical line down the Galaxy display. This is one of the most common faults Samsung phones develop. It is a failure of the connection between the AMOLED panel and its driver, and it can appear after a drop, after pressure on the screen, or on an ageing phone with no obvious trigger at all.

It does not recover on its own and usually widens over days or weeks. Screen replacement is the only repair for it. See Samsung screen repair.

Cracked glass with the display still working. Worth doing promptly. Once the outer glass is broken, dust and moisture reach the panel underneath, and a straightforward screen replacement can turn into a more expensive repair.

Touch responding in some areas but not others. This is usually digitiser failure inside the display assembly, or a display connector that has worked loose, often after a previous repair elsewhere. ExpressTech diagnoses which of the two it is before quoting.

A faint permanent shadow of the keyboard, navigation bar or status icons. This is AMOLED burn-in, caused by static elements displaying in the same position over long periods. It cannot be repaired or reversed by software, and screen replacement is the only fix. Whether it is worth doing depends entirely on how much it bothers you day to day.

A Galaxy that shuts down above 20% charge, or dies quickly in cold weather. This is normal lithium-ion battery wear. Cells lose usable capacity with age and charge cycles, and cold accelerates the effect, which is why an Irish winter will expose a battery that seems adequate indoors. See Samsung battery replacement.

A Galaxy that only charges at a certain angle, charges slowly, or not at all. In many cases this is pocket lint compacted into the base of the USB-C port rather than a hardware fault, and it can often be resolved without a repair. See Before you book, below. Where the port itself has failed, it is replaceable on most Galaxy models without touching the mainboard.

Blurry photos, a camera that will not focus, or a rattle from the camera. Samsung camera modules use optical image stabilisation, and when the stabiliser fails the phone often rattles audibly when it vibrates and photos come out soft. This is a camera module fault rather than a lens fault, and the module is replaced. See Samsung camera repair.

A Galaxy that has been in contact with liquid. Act immediately rather than waiting to see whether it recovers. See Samsung liquid damage repair, and read the liquid guidance in Before you book below.

Before you book

The checks below are worth doing before booking any Samsung repair. Some of them mean no repair is needed at all, and ExpressTech would rather you did not pay for something you can resolve yourself.

If a Galaxy will not charge: try a different cable and a different mains plug, not a laptop USB port. Then look into the charging port with a torch. Grey compacted fluff at the base of the port is common and prevents the cable seating fully. With the phone powered off, a wooden toothpick used gently will often clear it. Do not use anything metal. If the phone then charges normally, no repair is required.

If a Galaxy is slow or crashing: restart it fully before assuming a hardware fault, then check Settings, Battery and device care, Storage. An Android phone with very little free storage behaves like a faulty one, and clearing space often resolves it entirely.

It is also worth booting into Safe mode, which loads the phone without any apps you have installed. If the problem disappears in Safe mode, the fault is an app rather than the hardware.

If you suspect the Galaxy battery: Samsung does not show a battery health percentage in Settings the way some phones do. Open the Samsung Members app, go to Support and then Diagnostics, and run the battery status check. It reports the battery as Good, Normal or Weak. How the phone behaves matters more than the label: a Galaxy that lasts the day is fine, one that shuts down at 30% is not.

If the Galaxy screen flickers faintly at very low brightness: this is normal AMOLED dimming behaviour and is not a fault. Do not replace a working screen because of it.

If a Galaxy has been in contact with liquid: do not charge it and do not switch it on. Do not put it in rice, which does not draw moisture out of a sealed phone and introduces dust into the ports.

Power the phone off and bring it in as soon as possible. Corrosion inside a wet phone progresses over hours rather than days, and the outcome depends heavily on how quickly it is opened and cleaned.

How a Samsung repair works at ExpressTech

Walking in to the Dublin workshop. ExpressTech is open Monday to Saturday at Dublin 2 and no appointment is needed. Your Galaxy is assessed while you are there, you are given the price and the expected time, and you approve the work before it starts. Samsung screen and battery replacements are usually completed in 2 to 4 hours.

Sending a Galaxy by Collection & Return. ExpressTech collects and returns phones Monday to Friday for €30 flat per shipment, round trip, tracked and insured, door to door. That €30 covers the entire collection-and-return journey for one shipment regardless of how many devices it contains, and the round trip typically takes 3 to 4 working days.

Your Galaxy is inspected on arrival and you are contacted with the findings and the price before any work is carried out.

No additional paid work is ever carried out on your Galaxy without asking you first. If another issue is found during the repair, it is explained clearly and the cost confirmed before anything proceeds. This applies equally to walk-in and Collection & Return repairs.

Parts and quality on Samsung repairs

Samsung screen repairs at ExpressTech use an Original OEM Samsung Display. This is a single quality standard rather than a choice between tiers, because Samsung panel supply does not support a genuine second tier that ExpressTech would be willing to fit. You are not being offered a cheaper alternative, and you are not paying for an upgrade. There is one standard, and it is the right one.

On Galaxy batteries, many high-quality replacement batteries use cells from major manufacturers such as Samsung SDI, ATL or Sunwoda. Where a non-branded option is offered, the part is selected for reliability, fit and performance, not because it is a cheap substitute. The option is explained before any work begins.

ExpressTech is an independent repair specialist by choice, not because it could not be authorised, and does not claim any manufacturer authorisation.

Your data during a Samsung repair

ExpressTech does not access your personal data during standard hardware repairs. Your data is never accessed, transferred or erased unless you explicitly ask for a data-related service. Keep a backup as a general precaution before any repair, because hardware that is already failing can fail further during a repair, at any workshop.

For liquid damage and no-power faults, data recovery cannot be guaranteed by ExpressTech or by anyone else. Any repairer who guarantees data recovery from a liquid-damaged phone is guessing.

After your Samsung repair

Your repaired Galaxy is tested before it is returned to you: display and touch response across the whole screen, charging, cameras, speakers, microphones and the fingerprint sensor where relevant. ExpressTech confirms what was replaced and what was tested when handing the phone back or returning it.

A replaced screen or battery needs no settling-in period and no calibration ritual. Charge and use the phone normally.

One point specific to Galaxy screen replacement: on most models the fingerprint sensor is built into the display itself. When the display is replaced, the sensor is replaced with it, so you will be asked to re-register your fingerprints. That is expected, and takes a minute.

If something is not right after an ExpressTech repair, get in touch rather than waiting. Faults with a part fitted by ExpressTech or with the workmanship are covered by the warranty below, and diagnosing them early is always easier.

Warranty

Every completed repair at ExpressTech is backed by a 12-month warranty on parts and workmanship. It covers faulty parts and workmanship, but does not cover new accidental damage, misuse or unrelated faults after the repair.

Liquid damage repairs are excluded from the 12-month warranty due to the risk of ongoing corrosion. ExpressTech explains this exclusion before any liquid damage work is approved.

When ExpressTech would recommend not repairing a Galaxy

Sometimes the honest answer is that a repair is not worthwhile, and ExpressTech will say so before you commit to anything.

An older Galaxy with extensive liquid corrosion can cost more to attempt than the phone is worth, with no guaranteed outcome. A phone needing a screen and a battery together, on a model several generations old, is often past the point of sensible spend.

Screen replacement is also the single largest cost on a Galaxy, and on mid-range A-series models it can approach the value of the handset. Where that is the case, ExpressTech will tell you rather than take the work.

Common questions about Samsung repair in Ireland

How long does a Samsung repair take? Screen and battery replacements are usually completed in 2 to 4 hours. Liquid damage and no-power faults are diagnostic work, and the time depends on the fault. ExpressTech confirms timing before starting.

Will my Galaxy still be water resistant after a repair? No, and that is true of every repair centre rather than this one. Opening a phone breaks the factory seal permanently. ExpressTech reseals during reassembly, which returns splash resistance, but a repaired Galaxy should be treated as no longer water resistant. The full explanation is on the Samsung liquid damage page.

Can ExpressTech repair a Galaxy locked to someone else's Samsung account? ExpressTech can carry out repairs on a locked phone, but cannot remove the Samsung account lock or Google Factory Reset Protection. No repairer can, and anyone claiming otherwise should be avoided. Removing it requires the original account credentials.

Will ExpressTech repair a Galaxy another shop has already worked on? Usually yes. Tell ExpressTech what was previously done, as it shortens diagnosis.

Do you repair Galaxy tablets as well? Yes. Galaxy Tab repairs are handled separately from phones, because the parts, the process and the turnaround are different. See Samsung tablet repairs.