infinix smart 7 HD (X6515) disassembly

Introduction

The first and often most critical step in servicing the Infinix Smart 7 HD (Model X6515) is the safe removal of the plastic back panel.

Infinix Smart 7 HD (X6515) Disassembly: Safe Guide to Open the Back Panel

This process requires precision to avoid cracking the plastic and, more importantly, damaging the fingerprint sensor flex cable, which is often directly connected beneath the cover. This guide provides a focused, step-by-step procedure for technicians performing the initial opening of the X6515 model.

Infinix Smart 7 Disassembly / Teardown | How To Open Back Panel Infinix Smart 7

⚠️ Pre-Service Checklist and Safety Warnings

Before initiating the opening process, observe these crucial safety measures:

1. Power Off: Ensure the Infinix Smart 7 HD is fully powered down.
2. SIM Tray: Mandatory Step! Use a SIM ejector pin to remove the SIM/MicroSD card tray completely. Attempting to pry open the back cover while the tray is still inserted is the leading cause of damage to the plastic frame.
3. Workspace: Use an Anti-Static Mat to protect the internal components from Electrostatic Discharge (ESD).

Tools Required:

• SIM Ejector Pin.
• Heat Gun or Heating Pad (to soften light adhesive).
• Thin, Durable Plastic Opening Tools (Pry Tools).
• Fine Tip Tweezers (for handling the fingerprint cable).

Section 1: Applying Heat and Initial Separation

The Infinix Smart 7 HD back panel is primarily secured by plastic clips with minimal, light adhesive around the edges.

1. Heat Application: Use a heat gun set to low temperature (approx. $80^\circ\text{C}$ or $176^\circ\text{F}$) and apply heat evenly along the perimeter of the back cover for about 30–45 seconds. This softens the adhesive and increases the flexibility of the plastic clips.
2. Initial Insertion Point: Start at the easiest access point, usually near the bottom charging port or an edge closest to the volume rocker. Insert the thin plastic opening tool into the seam between the back cover and the mid-frame.
3. Creating the Gap: Gently rotate the tool to create a small gap. Do not use metal tools, as they will easily damage the plastic housing and scratch the mid-frame.

Section 2: Releasing the Plastic Clips

1. Sliding Motion: Once the gap is established, slide the plastic opening tool slowly around the edges of the device. Listen for the distinct sound of the plastic clips releasing.
2. Continuous Movement: Work your way around all four sides, applying steady, gentle pressure to separate the back panel. If the tool encounters significant resistance, stop and apply light heat to that specific area again.
3. Maintain Awareness: As you separate the cover, maintain a slight upward pull on the back panel to prevent the clips from locking back into place.

Section 3: The Critical Step – Disconnecting the Fingerprint Sensor

This is the point where most non-expert users damage the device. The fingerprint flex cable is short and highly susceptible to tearing.