A Step-By-Step Guide to Replacing Your iPhone 12 Mini Battery
If your iPhone 12 Mini is experiencing battery issues, replacing the battery can boost its performance. However, it is important to have the proper repair tools and technical skill to complete the process successfully. In this guide, Phonefix will provide step-by-step instructions on how to replace your iPhone 12 Mini's battery and answer common questions about replacing the battery.

About iPhone Battery

iPhone batteries are designed to retain 80% of their capacity for up to 500 charge cycles, which typically lasts for around 18–24 months for most users. However, as time passes, the iPhone battery in your phone may degrade, causing it to lose its ability to hold a charge. This can lead to shorter battery life and slower performance.

Tools to Follow this Guide

It is important to have the right tools on hand when following a guide for repairing an iPhone battery or display. The following is a list of the parts and tools we used:
  • iPhone 12 Mini Battery Replacement
  • RS52 Cell Phone Screen Holder
  • Mobile Phone Battery Welding Fixture
  • PHONEFIX Pre-programmed Battery Repair FPC
  • Ceramic Scissor
  • Grinding Pen
  • Spot Welder 
All of these tools and parts are available at China Phonefix Shop.

How to Replace iPhone 12 Mini Battery

It can be complicated to replace the battery in an iPhone 12 Mini. The good news is that with the right tools and an appropriate guide, anyone can replace an iPhone battery successfully. In addition, we used innovative methods and advanced tools in this guide to increase success rates. Please find below a step-by-step guide that will assist you:

Step 1: Remove the iPhone 12 Mini BatteryThe first step is to separate the old battery from the iPhone 12 Mini. In order to accomplish this, we used the REFOX RS52 Cell Phone Screen Holder. As soon as the battery has been removed, it is important to peel off the protective tape and remove the bracket.
1. Turn off your iPhone 12 Mini and remove the two screws located at the bottom edge of the phone using a Pentalobe screwdriver.

2. Use a suction cup to lift the display assembly away from the rear case, and use a spudger to gently separate the display assembly from the rear case.

3. Remove the five screws that secure the battery connector bracket using a Phillips screwdriver and then remove the bracket. Use a spudger to disconnect the battery connector from the logic board.

4. Remove the adhesive strips that hold the battery in place using a pry tool. Use a spudger to gently pry the battery up from the adhesive securing it to the iPhone and remove it from the phone.

Step 2: Remove the Battery BMS Board
The next step is to remove the battery BMS board. To separate the BMS board, remove the protective tape carefully, remove the bracket, and use ceramic scissors to disconnect the anode and cathode.

Step 3: Grinding And Soldering

Now you need to use a PHONEFIX grinding pen to grind the solder point. Put the battery cell into the welding clamp fixture, and settle the cathode lead and anode lead under the BMS board. Be sure to align the anode and cathode leads, respectively. After aligning the battery leads, solder them with the spot welder.
After soldering the leads, fold them well and put them on the protection bracket. Then, wrap another layer of protection tape around the outside. Connect the tag-on flex to the battery and fold it to the right position.

Step 4: Install the New Battery
Install the new battery back into your iPhone 12 Mini and turn it on.
Step 5: Check Battery Health
Click “Settings>Battery>Battery Health & Charging” and then check the battery condition. You should see that the maximum capacity is 100%.

Note: To boot up, you must connect the power cable or use the same type of battery.

The New Method

In the past, restoring the battery health data for the iPhone 12 Mini required using special tools like a cell phone repair battery programmer, battery sensors, and a connecting cable. But now, the new pre-programmed battery add-on has made the process much easier and quicker.
The new way to fix the battery data when replacing the battery cell is similar to the old method. The main goal is to move the original Battery control board to the new battery. This lets the phone recognize the new battery as the same as the original, avoiding the pop-up message.
After connecting the PHONEFIX Pre-programmed Battery Repair Flex Cable, you can just restart the phone directly. You no longer need to connect a power cable or use the same battery type to get the phone running again.

Frequently Asked Questions

Q: What kind of tools are needed to replace the iPhone 12 Mini battery?

A: To replace the iPhone 12 Mini battery, you will need a Pentalobe screwdriver, a Phillips screwdriver, a spudger, tweezers, a suction cup, and a pry tool.

Q: Can I replace the iPhone 12 Mini battery replacement myself?
A: Yes, you can replace the battery yourself, but it requires technical skills and experience. It's a delicate process involving removing the screen, disconnecting components, and dealing with adhesive.

Q: Where can I buy the replacement parts for my iPhone 12 Mini?
A: You can purchase the necessary replacement parts, including the battery, from China Phonefix, a leading supplier of cell phone repair components and tools. PHONEFIX offers a wide selection of iPhone 12 Mini replacement parts.
Q: Is it safe for me to replace the iPhone 12 Mini battery?
A: Yes. If you have the right tools and follow proper safety measures, replacing the iPhone 12 Mini battery yourself can be safe. However, if you lack confidence, it's better to seek help from a professional.

Q: What happens if I replace the iPhone 12 Mini battery when the device is not waterproof?
A: You can replace the iPhone 12 Mini battery, even if the device is no longer waterproof. But keep in mind that opening the device may compromise its water resistance.

Q: How long will it take me to replace the iPhone 12 Mini battery?
A: The time it takes to replace the iPhone 12 Mini battery can vary based on your experience level. On average, it can take between 60–90 minutes to complete the replacement.

If you need more tools for repairing your cell phone by yourself, you can get parts at a very affordable rate on Phonefix website. 
China Phonefix Website is a wholesaler that offers a wide range of high-quality Phone Repair Tools and accessories for mobile phone repair professionals and DIY enthusiasts, with a particular focus on the Apple iPhone series.

Battery repair

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