Samsung Galaxy S23 Ultra Screen Replacement Guide UK 2026

Samsung Galaxy S23 Ultra: The Premium Repair Guide for UK Technicians

The Samsung Galaxy S23 Ultra is a flagship by any definition. Its 6.8-inch Dynamic AMOLED 2X display — with 3088 × 1440 Quad HD+ resolution, 120Hz ProMotion-style adaptive rate, 1750 nit peak brightness, and integrated S-Pen silo — is a masterpiece of display engineering. Alongside its 200MP primary camera and the 5000mAh battery, this is a device that Samsung power users bought for serious work and entertainment.

In 2026, the S23 Ultra remains an excellent device that many UK users are repairing rather than replacing. OEM AMOLED replacement screens maintain the full S-Pen compatibility and under-display fingerprint sensor functionality that make the Ultra experience complete. This guide gives UK repair professionals and serious DIYers everything they need.

Samsung Galaxy S23 Ultra Display Specifications

Samsung Galaxy S23 Ultra Screen Replacement Cost UK 2026

The S23 Ultra commands premium replacement costs due to its Quad HD+ AMOLED panel and integrated S-Pen compatibility layer:

Screen Quality Grades

Supreme Phone Parts supplies the Samsung Galaxy S23 Ultra OEM AMOLED screen assembly at £211.82 — full OEM specification with complete S-Pen and fingerprint compatibility.

Full Cost Comparison

What Makes the S23 Ultra Screen Repair Unique

• S-Pen compatibility: The S23 Ultra's display integrates a Wacom digitiser layer for S-Pen input. OEM AMOLED replacements maintain this. Non-OEM replacements may make the S-Pen completely non-functional — check specifications carefully before ordering.
• Flat display: Unlike the S22 Ultra's curved display, the S23 Ultra uses a flat panel — this makes the opening procedure and replacement significantly easier, with no edge display complications.
• Quad HD+ resolution: At 500 ppi, the S23 Ultra's display is sharper than almost any other device. LCD alternatives will show a very noticeable quality difference — OEM AMOLED is strongly recommended for this model.
• S-Pen silo: The S-Pen is housed in a silo at the phone bottom. Remove it before starting the repair to prevent it falling out or getting damaged.

Tools Required

• Heat gun or iOpener (60°C)
• Large suction cup handle
• Plastic spudger and pick set
• Phillips screwdriver and Torx T5
• Non-magnetic tweezers
• Anti-static mat and wrist strap
• Samsung-specific adhesive strips (wider than standard S-series)
• Isopropyl alcohol (90%+) for cleaning

Step-by-Step Samsung Galaxy S23 Ultra Screen Replacement

Step 1: Power Off and Remove S-Pen and SIM

Power off the phone. Remove the S-Pen from the bottom silo. Remove the SIM tray. Removing the S-Pen prevents it falling and potentially getting damaged as you work.

Step 2: Heat the Back Glass

Apply heat around the back glass perimeter for 90 seconds. The S23 Ultra's flat back glass releases more cleanly than curved-back predecessors.

Step 3: Remove the Back Glass

Suction cup on the back glass, pick at the bottom edge, slide around the perimeter. Lift the glass away. Place it safely face-up.

Step 4: Disconnect the Battery

Remove the battery connector bracket screws (Torx T5). Disconnect the battery. Do not proceed until the battery is disconnected.

Step 5: Disconnect Internal Components

Remove screws securing the motherboard shield. Disconnect the wireless charging coil cable, fingerprint sensor cable (routed to the display), and any additional flex cables obscuring the display connector. Photograph before removing anything.

Step 6: Disconnect the Display Connector

Locate the display flex connector on the right side of the logic board area. Use a spudger to lift it straight up from the ZIF socket.

Step 7: Remove the Front Display Assembly

Heat the front display adhesive from the outside for 60 seconds. Apply suction cup to the front glass. Use picks to work around the flat perimeter and separate the display from the chassis. Because the S23 Ultra is flat, this step is considerably easier than on older curved-screen Ultras.

Step 8: Clean and Prepare the Chassis

Remove all old adhesive from the display seating channel using isopropyl alcohol. Clean thoroughly — any debris will prevent the new display from sitting flush.

Step 9: Install the New Screen

Apply fresh adhesive strips. Lower the new OEM AMOLED display carefully into position. Route the flex cable correctly. Press firmly around the perimeter to seat the adhesive.

Step 10: Reconnect and Test

Reconnect the display flex. Refit the fingerprint sensor cable. Reconnect the battery. Power on and test: full-screen touch, display quality at Quad HD+ resolution, S-Pen input across the full screen, under-display fingerprint registration, front camera. Everything must pass before sealing.

Step 11: Reassemble

Reconnect all internal cables and refit the motherboard shield. Refit the back glass with fresh adhesive. Apply firm pressure around the entire perimeter. Reinsert the S-Pen and SIM tray.

Where to Buy Samsung Galaxy S23 Ultra Screens UK

Supreme Phone Parts stocks the S23 Ultra OEM AMOLED screen assembly at £211.82 from our Manchester warehouse. As a UK eBay Top Rated Seller, we deliver quality, reliability, and same-day dispatch.

• Browse Samsung S Series collection
• eBay store — UK Top Rated Seller
• Amazon branded store

FAQ: Samsung Galaxy S23 Ultra Screen Replacement

Why is the Samsung Galaxy S23 Ultra screen more expensive to replace?

The S23 Ultra uses a 6.8-inch Quad HD+ Dynamic AMOLED 2X panel with 500 ppi, an integrated S-Pen digitiser layer, and an under-display fingerprint sensor. Each of these elements adds manufacturing complexity compared to standard AMOLED panels, resulting in higher OEM replacement costs.

Is the Samsung S23 Ultra screen flat or curved?

Flat — Samsung moved from curved to flat displays on the Ultra series with the S23. This makes the repair significantly easier than the S22 Ultra and makes third-party adhesive compatibility more consistent.

Can I use a non-OEM screen on the S23 Ultra without losing S-Pen?

In most cases, non-OEM replacements will not support the S-Pen. The Wacom digitiser layer is specific to OEM panels. For S23 Ultra repairs where S-Pen use is important, OEM AMOLED is the only viable option.

Will the under-display fingerprint sensor work after screen replacement?

Yes — with an OEM AMOLED replacement that maintains the same optical fingerprint layer. Non-OEM screens (LCD or alternative OLED) typically do not support this feature.

How long does S23 Ultra screen replacement take?

Experienced technician: 60–75 minutes (more components than standard S23). First-timer: 2–2.5 hours. The S-Pen digitiser flex and multiple cable disconnections add time.

Conclusion: Preserve the Full S23 Ultra Experience With an OEM Screen

The Samsung Galaxy S23 Ultra's defining features — its 500ppi Quad HD+ display and S-Pen — are only fully preserved with an OEM AMOLED replacement. At £211.82, it's a premium part for a premium device, and significantly less than Samsung's authorised service pricing.

Supreme Phone Parts delivers OEM-grade Samsung parts from Manchester with same-day dispatch. As a UK eBay Top Rated Seller, our quality and service are verified by thousands of customer transactions.

Order the Samsung Galaxy S23 Ultra screen here — or browse the full Samsung S Series range. Also on eBay and Amazon.