Samsung Phone Repairs | Galaxy Screens, Batteries, Foldables and Liquid Damage

AMOLED image retention: why does it happen, and can it be fixed?

Most mid-range and high-end Samsung phones, such as Galaxy S and Note models, use AMOLED panels. Each pixel emits its own light, delivering excellent picture quality and contrast. However, prolonged static images, such as navigation bars, status bars or map icons, may age some organic LEDs prematurely, causing image retention or burn-in. This is a characteristic of AMOLED panels. Once established, it usually cannot be reversed by software or cleaning; replacing the display is the only effective solution. Lower brightness, automatic screen-off and avoiding prolonged static images can help delay burn-in.

Will screen replacement affect under-display fingerprints and the camera?

Most Samsung models use under-display fingerprint recognition, with the sensor beneath the panel. Screen replacement therefore requires careful handling of flex cables and the sensing layer to preserve sensitivity. Professional repair goes beyond appearances: fingerprint unlocking, camera focus and ambient light sensing should all be tested before returning the device. For iPhone screen replacement advice, see iPhone screen replacement.

Does your Samsung need a new battery? Check with Samsung Members

Samsung states that battery condition can be checked using Phone diagnostics in Samsung Members: open the app, tap Support, tap Start under Phone diagnostics, then select Battery status after the test. There are three results:

Samsung also states that similar checks are available on Galaxy devices with Android 12 or later under Settings → Device care → Diagnostics. Menu names vary by model and software version. If you receive a battery-check notification or the body deforms due to a swollen battery, stop using the phone and have it inspected promptly.

Extend Samsung battery life: three Battery protection modes

Samsung states that keeping a battery at 100% for long periods shortens its life. Galaxy devices with One UI 6.1 or later offer Battery protection with three modes:

• Basic: Charging stops at 100% and resumes when the level falls to 95%.
• Adaptive: Uses Maximum mode during sleep and switches to Basic before you wake, with timing estimated from usage habits.
• Maximum: Charging stops at the selected limit. From One UI 7.0, limits of 80%, 85%, 90% or 95% are available.

Enable it under Settings → Battery → Battery protection. Models below One UI 6.1 offer only an 85% maximum charge limit. For iPhone battery replacement, see iPhone Battery Replacement.

What to know about Galaxy Z Fold and Z Flip repairs

Foldable repairs are significantly more complex than conventional phones. Inner displays and hinges are specialised precision structures, and Z Fold and Z Flip generations differ in display specifications and hinge design. We confirm the model and generation before assessing feasibility and parts availability.

Pay particular attention to the main-screen protective film. Samsung states that the preinstalled film is designed for repeated folding and recommends not removing it. Replacement should be carried out by a Samsung authorised service centre and may be chargeable. Damage caused by removal by the user or an unauthorised provider is excluded from Samsung's standard limited warranty. If only the film is bubbling or lifting and the device is under warranty, check an authorised centre first.

How should I protect my personal data before Samsung service?

Samsung Galaxy offers Maintenance mode. When enabled, personal photos, messages and accounts cannot be accessed, and only preinstalled apps can be used, allowing technicians to test the phone without accessing your data. It is available on Galaxy devices running Android 13 or later, depending on the model, and requires a screen lock. Samsung recommends backing up first. If the repair may require a reset, Samsung also recommends removing your Google Account before service to avoid Factory Reset Protection (FRP) blocking setup afterwards. See Software Troubleshooting and Data backup and recovery.

Does IP68 mean a Samsung phone is safe from liquid damage?

No. Samsung states that Galaxy IP68 testing generally uses fresh water up to 1.5 metres deep for up to 30 minutes in a laboratory. Avoid seawater, pool water, soapy water, oils, sunscreen and chemicals. Ratings vary by model and region; check the manual. Ageing, drops or opening can weaken protection. After liquid exposure, switch off, do not charge and seek repair promptly. See Phone liquid damage repair.

Official versus independent Samsung repairs: which suits you?

If your Samsung remains under warranty, has a manufacturing fault or needs its foldable protective film replaced, check with a Samsung authorised service centre first. An independent specialist may be more practical for expired warranties, accidental damage or urgent same-day collection.

*Official terms are subject to Samsung's latest information. Our terms are stated in the in-person quotation.

What should I prepare before repair?

• Back up your data: Back up with Samsung Cloud, your Google Account or a computer first.
• Make sure you know your passcode: Your screen lock and Google Account password may be needed for tests or system work.
• Consider maintenance or repair mode: Protect private information such as photos and messages.
• Explain what happened: Whether it was dropped, got wet or was previously repaired.
• Remove the case: Helps us inspect the body and screen edges. Do not peel off a foldable's inner-screen protective film yourself.

Pixel users, who also use Android, can read Google Pixel Repair. For more practical advice, see Phone repair guide and Phone repair FAQs.