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GSM Repair Tutorials

In this section you will find step-by-step repair guides that take you from the first screw to the final test. Start with simple jobs like screen and battery replacements before you move to more complex tasks.

Core tutorials for beginners

These tutorials are designed to match the skills you learned in the Basics section. Each guide focuses on one type of repair and explains the process in clear, practical steps.

Change LCD / screen on an iPhone

Learn how to safely replace a cracked iPhone screen: opening the device, disconnecting flex cables, transferring small parts and testing the new display.

  • Required tools and preparation
  • Step-by-step disassembly and reassembly
  • Common mistakes and how to avoid them
Open the LCD replacement tutorial

Change battery on an Android phone

A complete guide to replacing the battery on a typical Android device, focusing on models with glued backs and internal batteries.

  • Safe opening and adhesive removal
  • Battery disconnection and replacement
  • Post-repair checks and calibration tips
Open the battery replacement tutorial

Water-damage basics

Learn what you can realistically do with water-damaged phones as a beginner: from first reaction steps to basic cleaning and evaluation.

  • What to do immediately after exposure
  • Basic disassembly and cleaning
  • When to say โ€œnoโ€ and send the device to a specialist
Open the water-damage basics tutorial

More tutorials

Additional guides published by TargetGSM and the community.

We are still preparing more tutorials. Start with the guides above and check back later for new content.

Ready to practise?

Before you try these tutorials on a customer device, practise on older or non-critical phones and make sure you also read the Safety & ESD and Tools for beginners lessons.