> ## Content Index
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> Use this file to discover other available public pages before exploring further.

# Buying a used iPhone: check screen, camera, and functions before you pay
- URL: https://giggle.blog/hk-b2c-anti-scam-screen-camera-function-2026-08-01/
- Published: 2026-08-01T09:00:00.000Z
- Updated: 2026-08-03T02:57:45.000Z
- Description: Anti-scam guide Issue 02: before you pay, check screen (solid color / touch / True Tone), cameras (bright surface / Face ID), and functions (dialer, NFC, SIM tray, call proximity, Wi‑Fi / Bluetooth, audio, charging). Powers on with photos ≠ ready for daily use.
- Author: Giggle Blog

### Buying a used iPhone: check screen, camera, and functions before you pay

> **Power-on and pretty photos do not mean it is safe to use.**  
> **Walk screen, cameras, and functions before you pay.**  
> **Anti-scam guide** Issue 02 — supplements Issue 01 basics; not a push to check out.

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### After Issue 01: screen / camera / functions

Issue 01 covered four basics: why the price is low, whether the battery lasts a day, whether the phone is locked, and who handles problems. This issue fills the traps private deals often skip: **screen, cameras, function checks**.

Grades A+ / A / B / C describe **appearance**; touch, cameras, and Face ID need a **separate check**.

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### 1\. Screen

1. **Solid / high-contrast** — white, black, or high-contrast; look for blotches, yellowing, bright/dark pixels, bleed, tint.
2. **Full-screen touch** — edge to edge; mash dialer digits.
3. **Brightness + About** — Settings → General → About; watch Parts and Service History / unknown parts.
4. **True Tone** — Settings → Display & Brightness; toggle present and colour shift natural (often missing after a non-genuine screen).

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### 2\. Cameras

1. **Rear** — aim at a bright wall/ceiling; try 0.5× / 1×; watch for fixed black spots, haze, tint. Live viewfinder, not old gallery shots.
2. **Front + Face ID** — selfie preview OK; Settings → Face ID & Passcode; complete setup (try Face ID with a Mask if shown — common on iPhone 13 / 14 with newer iOS; follow this unit’s menus).

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### 3\. Functions

- Dialer digits one by one
- NFC if available (test/transit card near upper back)
- SIM tray intact; insert SIM; **short call** for earpiece / far-end audio; **palm over top of screen should dim** (proximity sensor)
- Speaker / mic / buttons / torch
- **Wi‑Fi / Bluetooth** — Settings → Wi‑Fi / Bluetooth; networks and devices appear
- Wired charging spot-check (wireless is a bonus, not the minimum)

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### 3-minute checklist

- □ Solid-color screen OK
- □ Full touch + dialer
- □ Rear camera on bright surface; 0.5× / 1×
- □ Front + Face ID setup
- □ About Parts and Service History looks normal
- □ True Tone present and colour shift natural
- □ Call: earpiece OK, other side hears you, palm over top dims screen
- □ Wi‑Fi / Bluetooth: can find networks and devices
- □ NFC (if available) / audio-buttons / wired charge
- □ Issue 01 four: clear price reason, battery screenshot in hand, Apple ID signed out, someone accountable after-sales

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### “Certified” still means endorsement

- **80+ inspection points** · battery ≥85%
- **Real-unit photos** · **6-month warranty** · **14-day returns**

| Entry                    | Link                                                                                                                                                                                                        |
| ------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Catalog /p               | [gigglefone.com/en-US/p](https://www.gigglefone.com/en-US/p?utm%5Fsource=article&utm%5Fmedium=content&utm%5Fcampaign=anti%5Fscam%5Fscreen%5Fcamera%5F20260801&utm%5Fcontent=en&utm%5Fterm=p)                |
| One device, one photo /d | [gigglefone.com/en-US/d](https://www.gigglefone.com/en-US/d?utm%5Fsource=article&utm%5Fmedium=content&utm%5Fcampaign=anti%5Fscam%5Fscreen%5Fcamera%5F20260801&utm%5Fcontent=en&utm%5Fterm=d)                |
| Grades                   | [gigglefone.com/en-US/grades](https://www.gigglefone.com/en-US/grades?utm%5Fsource=article&utm%5Fmedium=content&utm%5Fcampaign=anti%5Fscam%5Fscreen%5Fcamera%5F20260801&utm%5Fcontent=en&utm%5Fterm=grades) |

WhatsApp: **+852 5106 6241** · [wa.me/85251066241](https://wa.me/85251066241?ref=giggle.blog)  
Email: service@gigglefone.com

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*General anti-scam guide. Warranty and returns follow the product page at purchase.*

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*Originally published on [GiggleFone](https://www.gigglefone.com/articles/hk-b2c-anti-scam-screen-camera-function-2026-08-01?ref=giggle.blog) — certified graded iPhones for Hong Kong.*