Why this distinction matters
Many customers come in saying “I just cracked the glass” expecting a cheap glass-only repair — and are surprised when the technician recommends a full assembly. Understanding why helps you trust the diagnosis and compare quotes accurately.
Glass-only repair
What’s replaced: The outer Gorilla Glass or equivalent protective layer only
Cost: Lower — typically $30–$80 less than a full assembly
Time: Longer — the glass must be carefully separated from the display using heat and suction tools
When it’s appropriate: Only when the glass is cracked but the display underneath still shows perfectly — no dead pixels, no touch issues, no discolouration, no backlight bleed
Glass-only repair involves using a heated separation tool to lift the cracked outer glass from the display panel beneath, then bonding a new piece of glass to the same display. The risk: if the display is damaged during separation (a real possibility, especially on curved screens or if the crack is deep), you’ve now created a more expensive problem. At Certified Phone Repair, we assess the damage before recommending glass-only repair and will always tell you upfront if the risk is too high for your specific device.
⚠️ Important: Glass-only repair is not available on all phones. Curved screens (Samsung S-series, some iPhone models) are significantly harder to separate safely. Some technicians will attempt glass-only on curved screens and damage the display in the process. Always confirm your screen type before agreeing.
Full assembly replacement
What’s replaced: The entire screen module — glass, digitiser (touch layer), and display panel as a single unit
Cost: Higher — but includes a fully new display, not just the glass
Time: 30–60 minutes for most models
When it’s required: When the display is damaged (lines, dark patches, discolouration, touch not working, black screen) — or when glass separation risk is too high for the device
Full assembly replacement swaps the complete screen unit as one piece. This is the standard repair for cracked screens where any display damage is present, and the correct approach for all OLED phones where glass separation carries significant risk. The result is effectively a brand-new screen experience.
How to assess your own damage
| What you see | Likely repair needed |
|---|---|
| Cracked glass, display shows perfectly, touch works | Glass repair may be possible — technician must assess |
| Cracked glass with dark patch or bleed spreading from crack | Full assembly — display is damaged |
| Lines or dead pixels on screen | Full assembly — display panel is damaged |
| Touch not responding in areas | Full assembly — digitiser is damaged |
| Completely black screen after drop | Full assembly (or connector issue — technician must check) |
| Glass cracked on curved Samsung S-series | Usually full assembly — curved glass separation risk is high |
What the digitiser is
The digitiser is the touch-sensitive layer that sits between the outer glass and the display panel. It translates your finger touches into commands the phone can understand. In almost all modern smartphones, the digitiser is laminated directly to the display panel — which is why “touch not working” usually means full assembly replacement, not a simple digitiser-only repair.
Related terms
- OLED vs LCD — screen type affects which repair is viable
- Grade A Parts — what quality of replacement assembly to expect
Walk in to Westgate or AMK Hub. We assess your screen for free and tell you exactly what’s damaged before we quote anything.
