iPhone 12 Back Glass Replacement: Cost, DIY Guide & Where to Buy in the UK

Signs Your iPhone 12 Needs a Back Glass Replacement

The iPhone 12's flat-edged design puts a lot of stress on the corners in a drop, which is where cracks in the rear glass usually start. Look for:

• Cracks running from a corner across the back panel
• Glass lifting or separating from the aluminium frame
• Sharp fragments catching on cases or pockets
• Shattering around the camera housing

How Much Does an iPhone 12 Back Glass Replacement Cost?

The replacement rear glass panel starts from £4.55 at Supreme Phone Parts, in Green, Blue, Red, Purple and Black. A repair shop will typically add a labour charge on top if you're not fitting it yourself.

Tools You'll Need for a DIY Replacement

• Heat gun or heat mat
• Suction cup and thin opening picks
• Pentalobe and Torx screwdriver set
• Spudger and tweezers
• New adhesive strips or UV adhesive

Step-by-Step: Replacing Your iPhone 12 Back Glass

1. Power off the device fully.
2. Apply even heat around the edges of the rear glass to soften the adhesive.
3. Use a suction cup and pick to lift and remove the glass in sections, working carefully around the camera bracket.
4. Clean off old adhesive residue from the frame.
5. Apply new adhesive and position the replacement glass over the camera cutout.
6. Press firmly around the edges to seat the new panel.

DIY vs Professional Repair

This is a moderate repair — the main risk is cracking the camera lens or bracket underneath if you rush the heating step. With patience and the right tools it's a manageable weekend job; otherwise a repair shop can usually do it same-day.

Related iPhone 12 Repair Parts

• iPhone 12 / 12 Pro Battery Replacement

Frequently Asked Questions

Can I replace an iPhone 12 back glass myself?

Yes. The rear glass is bonded to the aluminium frame with adhesive, so you'll need to heat and lift it off in sections rather than unscrew it, then bond the new panel with fresh adhesive.

How much does an iPhone 12 back glass replacement cost?

The replacement glass panel starts from £4.55 at Supreme Phone Parts. Professional fitting adds a labour charge on top of the part price.

Will a cracked back glass drain my iPhone 12's battery faster?

Not directly, but exposed internals from cracked glass increase the risk of dust and moisture damage over time, which can affect the battery and other components indirectly.

Buy iPhone 12 Back Glass at Supreme Phone Parts

Shop the iPhone 12 Back Glass Replacement — from £4.55, Manchester-stocked (Cheetham Hill) with same working-day dispatch and 30-day returns. Trade pricing available for repair shops.