ScandiTech's iPhone 6 & 6 plus battery replacement guide

General tips before you get started with your battery replacement.

We recommend reading through the whole guide before performing the battery replacement. This will give a general idea of what you are up against and you will feel more comfortable when disassembling your iPhone. We’d like to begin by issuing caution throughout the battery replacement process. You are, after all, operating on a hi-tech device.

Our support is available seven days a week per email if you need any assistance.
support@scandi.tech

1 The front is mostly made out of a glass screen and an LCD underneath it. If this part is not handled with care, the glass can shatter and/or the LCD can break.

2Almost all screws inside of the phone (not the bottom screws next to the charging port) are of different lengths. After the screws are removed, they need to go back into the same place they were removed from. Pay attention to this during reassembly. Organize the screws when removing them!

3Lithium batteries contain various chemicals which are safely stored inside the battery. Puncturing, piercing, or physically damaging the battery can lead to combustion and fire.

4Back-up your phone prior to the battery replacement. No data will be lost if the replacement goes as a planned but unforeseen complications can arise, although they are uncommon.  

VIDEOS

Detailed step-by-step text/image guide for iPhone 6 and 6 Plus battery replacement

Step 1

Turn off your iPhone. Locate and unscrew the two pentalobe/5-star bottom screws next to the charging port with the small pentalobe screwdriver.

iPhone 6/6+ battery replacement guide - Unscrewing bottom screws

Unscrew the two bottom screws


Step 2

Separate the front assembly from the back assembly by pressing the suction cup against the glass as closely to the home button as possible, but not on the home button, and gently pulling the front assembly upwards from the back assembly.

Lift the front assembly only a tiny bit to expose a small opening between the front assembly and the back assembly above the charging port.
If the front assembly does not separate from the back assembly when pulling it with the suction cup, the tweezers must be used to separate them. If your front assembly is cracked or if the back assembly is bent or dented, using the tweezers could be the only way to separate these two assemblies. Put the tweezers between the front assembly and the back assembly (between the metal and the plastic frame – not between the glass and the plastic frame) just by the speaker/mic holes. 

* Sometimes the glue holding the glass to the plastic frame is weakened and when pulling with the suction cup, the glass can separate from its plastic frame. If this happens, proceed to separate the plastic frame from the back assembly with the tweezers, as shown below.

* The tweezers can leave a tiny mark on the back assembly, be careful!

iPhone 6/6+ battery replacement guide - Prying the screen - 3
iPhone 6/6+ battery replacement guide - Prying the screen - 2
iPhone 6/6+ battery replacement guide - Prying the screen - 1

(If using the tweezers) Once there is a tiny opening, continue with the spudger.

Continue using the opening tool.

Slowly and carefully. 



Step 3

Stick the opening tool or the spudger into the opening and slowly move it along the side to further separate the front from the back assembly.

* If the front assembly frame is stuck to the back assembly, wiggle the tool to separate them. Broken or damaged front assemblies are in general more fragile and could crack if too much force is applied!

iPhone 6/6+ battery replacement guide - Prying the screen - 4
iPhone 6/6+ battery replacement guide - Prying the screen - 5

Slide the opening tool slowly along the sides

Continue using the opening tool or the spudger


Step 4

Once the front assembly is loosened from the back assembly, lift it to a 90 degree angle from the back assembly and hold it at that angle with one hand.
With your other hand, unscrew the two screws holding the battery connector plate.

iPhone 6/6+ battery replacement guide - Lifting the screen.
iPhone 6/6+ battery replacement guide - Removing battery metal cover - 1

Lift the front assembly to a 90 degree angle


Unscrew the screws holding the metal battery cover


Step 5

Keep holding the front assembly at a 90 degree angle and lift off the battery connector plate from the battery connector with the tweezers. Continue by separating the battery connector on the battery from its connector on the motherboard with either the spudger, the opening tool or your fingernail.

iPhone 6/6+ battery replacement guide - Removing battery metal cover - 2
iPhone 6/6+ battery replacement guide - Disconnecting battery connector - 1
iPhone 6/6+ battery replacement guide - Disconnecting battery connector - 2

Remove the metal plate


Disconnect the battery connector with the spudger


Disconnect the battery connector with the spudger


Test the new battery!

At this point it is very easy to connect the new battery without removing the old one. It’s a good idea to do this in order to verify that the new battery is performing as it should without taking the phone fully apart. In case the new battery is damaged or faulty in any way you have saved yourself the trouble of taking the phone apart twice.

To test the new battery, just place it over the current battery (without removing the current battery from the phone) and connect the new battery’s connector to its connector on the logic board. Once the battery is connected, start the phone. You can either hold the front assembly at a 90 degree angle during this process or you can lower it in a similar fashion as when rising it up.

iPhone 6/6+ battery replacement guide - Testing the new battery - 1
iPhone 6/6+ battery replacement guide - Testing the new battery - 2

Place the new battery on top of the old battery and test it


Start the phone and make sure the battery works


Once the phone has booted up with the new battery, plug in the charger to the phone and let the phone charge at least 3%.
If the phone charges the battery should be fully working and the replacement process can be continued.
If the phone does not start right away when the new battery is put in place, it is possible that the new battery is completely discharged.

In this case, let the phone charge for at least 15 minutes – that’s how long it can take before something shows up on the screen.
Once the new battery is tested, turn off the phone and unplug the new battery’s connector, remove the new battery and continue following our guide.

At this point, you can either skip directly to removing the battery (Step 8) while holding the front assembly with one hand at a 90 degree angle or you can remove the front assembly to have both hands free.

Both ways have up- and downsides.

NOT removing the front assembly and skipping to Step 8:

Downside: You only have one hand to work with. You could risk damaging the front assembly if you do not hold it correctly.
Upside: You will relieve yourself of the hassle of disconnecting and reconnecting the front assembly, which could get tricky, especially to reconnecting the flexes. During this process the flexes could also be damaged. You save yourself a few minutes of the whole repair process.

We recommend disconnecting the front assembly as the cables connecting it to the motherboard easily break under stress, and it is tough to hold the phone still while removing the battery . If you can ask someone to hold the front assembly for you, try to proceed without removing the front assembly. If you change your mind, you can at any point return back to this step and remove the front assembly completely.

Step 6

Removing the front assembly

Keep holding the front assembly at a 90 degree angle and remove the four screws (the top right side screw is non magnetic!) holding the metal LCD connector cover. Proceed by removing the metal LCD cover. Make sure to organize these screws in the order you remove them.

It’s important that each screw is put back in its respective place.

iPhone 6/6+ battery replacement guide - Locating metal cover
iPhone 6/6+ battery replacement guide - Removing the metal cover

Identify the metal cover and the five screws in the top right part of the phone and unscrew them


Remove the metal cover with the tweezers and organize it with the screws


Step 7

Keep holding the front assembly at a 90 degree angle and separate the LCD connector, touch connector, home button and the sensor/front camera connector from their ports on the motherboard.

Disconnect the connectors carefully. They are quite fragile and bend easily. Once they are separated, the front assembly can be lifted off safely.

Use caution during this step as there are components (controlling rotation and touch functions) close to the connectors that are easily damaged.

Use the plastic tools to disconnect the connectors and avoid levering with force against components on the motherboard.

iPhone 6/6+ battery replacement guide - identifying phone screen cables.
iPhone 6/6+ battery replacement guide - Disconnecting phone screen cables - 1

Identify the LCD, touch, home button and front camera connectors


Disconnect the LCD, touch, home button and front camera connectors with the spudger or your fingernail


iPhone 6/6+ battery replacement guide - Disconnecting phone screen cables - 2
iPhone 6/6+ battery replacement guide - Disconnecting phone screen cables - 3
iPhone 6/6+ battery replacement guide - Disconnecting phone screen cables - 4

Disconnect the LCD, touch, home button and front camera connectors with the spudger or your fingernail


Disconnect the LCD, touch, home button and front camera connectors with the spudger or your fingernail


Connector overview


Step 8

Remove the battery.

The battery is held down by double-sided adhesive. These adhesive strips need to be pulled out from underneath the battery.
The adhesive strips end at the bottom side of the battery and sometimes need to be gently scraped up/unfolded from the battery.

Be careful when pulling the black strip. It tears easily and complicates things if torn/broken.
The iPhone 6 has two strips while the iPhone 6 Plus has three strips.

iPhone 6/6+ battery replacement guide - Removing adhesives - 1
iPhone 6/6+ battery replacement guide - Removing adhesives - 2
iPhone 6/6+ battery replacement guide - Removing adhesives - 3
iPhone 6/6+ battery replacement guide - Removing adhesives - 4

Unfold the black strip


Unfold the black strip


Unfold the black strip


Unfold the black strip


From here on there are three ways of removing the iPhone 6 battery. We recommend the first option (8.1) but please read and consider all of them. The first option is not fail proof as the adhesive easily tears. If this happens, option 8.2. or 8.3 has to be used. These are significantly more difficult which is why the first option is preferable. The key is to thread slowly and carefully. Rushing this step increases the risk of the adhesive tearing.



Step 8.1


The safest way: Grab the end of the adhesive (both the black and the white part – if only grabbing the black part, the strip rips easily) and pull the adhesive down and outwards from the phone, in the direction of the charging port. Before pulling the adhesive, it helps to heat lightly the back (outer) side of the back assembly with a heat gun or a hair dryer.
Do not heat it too much! If you cannot hold and keep your finger on the back assembly, it is too hot!

Disadvantage: The adhesive strips tears easily and they often rip in a way in which they are irremovable afterwards. If this happens, the following two options need to be used.

iPhone 6/6+ battery replacement guide - Removing adhesives - 5
iPhone 6/6+ battery replacement guide - Removing adhesives - 6
iPhone 6/6+ battery replacement guide - Removing adhesives - 7

Pull the adhesive outwards and away from the battery



Pull the adhesive outwards and away from the battery



Pull the adhesive outwards and away from the battery



Step 8.2

If the adhesive that runs underneath the battery tears when pulled, which could happen no matter how careful you are (being careful helps a lot, but it's not a guarantee for success), different removal methods have to be used.
The safest way to remove the battery if the adhesive strips tear is to carefully separate the battery from the adhesive by sliding a piece of string (fishing line, dental floss, or a similar type of string) underneath the battery.

Begin by sliding the piece of string underneath a corner of the battery. Use a plastic tool to guide the string underneath the battery could help if the string doesn't come into place on its own.

Once the string is in place, pull it slowly and carefully back and forth to separate the battery from the underlying adhesive. Do not brush the string against the motherboard or any of the cables that run alongside the battery. Hold the string in a way that makes it follow the body of the battery. Keep working the string from top to bottom until the battery separates from the phone's body.

iPhone 6/6+ battery replacement guide - Removing the battery with string - 1
iPhone 6/6+ battery replacement guide - Removing the battery with string - 2
iPhone 6/6+ battery replacement guide - Removing the battery with string - 3

Use a fishing line, dental floss, or similar type of string


Be mindful of the cables that are near the battery


Work the string down the battery slowly and carefully


Step 8.3

The less common and more troublesome way, only attempt this is if the other two (8.1 & 8.2) fail: Lever the battery up from the back assembly. Use your tweezers with its dull broad base downwards and lever the battery up.
The adhesive is very strong and makes it difficult to loosen the battery.

Try to lever the battery from various points along the left side of the phone. This process can take up to 5-10 minutes. The battery might only loosen a tiny bit at a time. Be patient, move slowly and carefully. If the battery will not come loose from the adhesive, use a heat gun, a hair dryer or a warm halogen (LED is not warm enough) lamp to lightly heat the back (outer) side of the back assembly. An elevated temperature makes the battery loosen easier from the adhesive when levering.

Do not heat it too much! If you can not hold and keep your finger on the back assembly, it is too hot!
Keep levering from different positions until the battery can be lifted out.
Disadvantage: The battery is held very tightly to the adhesive and is often very troublesome to remove, even with heat applied. There is a risk of damaging the battery if carelessly levered upwards.


IMPORTANT:
1. Do not lever the battery up from the right hand side where the motherboard is located. By levering against the motherboard there is a significant risk of damaging components.
2. Do not lever the battery from the top left corner. The volume key cable runs underneath the battery and it gets easily damaged by the tweezers.
3. Do not puncture, damage or severely bend the battery. The battery can combust (catch on fire) if it is pierced or severely bent. If your battery is already damaged or swollen, it is extra sensitive!

iPhone 6/6+ battery replacement guide - Prying out the battery - 1
iPhone 6/6+ battery replacement guide - Prying out the battery - 2
iPhone 6/6+ battery replacement guide - Prying out the battery - 3

Lever the battery up from the back assembly with the tweezers.


Lever from different positions


Lever until the battery comes loose and can be removed by hand


Step 9

Once the battery is removed, put two new adhesive strips where the old ones were. This process can be a bit tricky so take your time.
The adhesive is very sticky and will easily stick to anything when its wrapper is removed. Make sure you’re ready to install it when you remove its plastic wrapper. If there is a see through plastic film/cover on the new battery, remove this film.

Start at the pointy end of the adhesive and hold the end of each film. When slowly separating, one film will come off easily without stretching the adhesive or leaving bubbles. This the end film you want to remove. Separate the film from the adhesive slowly.

Once the film is off, take the battery and align its bottom end to the black strip. Proceed by attaching the rest of the battery’s body to the adhesive. Then remove the two blue films that cover the adhesive on the black strips. Fasten the black strips to the end of the battery and then remove the last protective film.

Now, put the new battery in the same spot (for illustrating purposes we will be using the same original iPhone 6 battery as we just removed) as the old one. Make sure the battery is spaced out and not directly adjacent to neither the metal assembly or the motherboard. Also make sure the battery’s connector is aligned to its receiving end on the motherboard.
Then press the battery firmly down to the back assembly with your fingers to make it stick to the double-sided adhesive.

Do not connect the battery connector to the motherboard battery connector just yet, we will do this in Step 11.

iPhone 6/6+ battery replacement guide - Preparing new battery
iPhone 6/6+ battery replacement guide - Installing new adhesive - 1
iPhone 6/6+ battery replacement guide - Installing new adhesive - 2
iPhone 6/6+ battery replacement guide - Installing new adhesive - 3

Remove the protective film from the battery

Installing the adhesive (updated instructions)


Start at the pointy end of the adhesive and one of the films will come off easy (in this case, the blue colored film)


Do NOT remove the film from the non-pointy end yet


iPhone 6/6+ battery replacement guide - Installing new adhesive - 4
iPhone 6/6+ battery replacement guide - Installing new adhesive - 5
iPhone 6/6+ battery replacement guide - Installing new adhesive - 6
iPhone 6/6+ battery replacement guide - Installing new adhesive - 7

First film removed


Align and fasten the battery’s bottom end to the adhesive


Flip the battery and make sure the adhesive is fastened


Remove the two small blue films


iPhone 6/6+ battery replacement guide - Installing new adhesive - 8
iPhone 6/6+ battery replacement guide - Installing new adhesive - 9
iPhone 6/6+ battery replacement guide - Installing new adhesive - 10

Once the blue films are removed, attach the black strips to the battery


Remove the last film slowly as the adhesive can stretch or come loose


Place the new battery in the old one’s place and make sure the battery’s connector can attach to the motherboard


Step 10

If you removed the front assembly (Step 6) it’s time to reconnect it (if you haven’t removed the front assembly, move on to Step 11). Reconnect the front assembly in a similar fashion as when you disconnected it. Hold it in place so that the top of the front assembly and the top of the back assembly are next to each other.

Connect the LCD, touch, home button and front camera connectors to their respective connectors on the motherboard by putting them in place with your spudger and then connecting them with your index finger or the spudger. You will hear a soft “click”-noise when they are properly connected. If the LCD, touch and/or sensor/front camera connector are not connected properly or if they get damaged, the LCD, touch and/or sensor/front camera functionality can be compromised.

If there are white lines/squares on the LCD after the battery replacement, the LCD connector has most likely been disconnected incorrectly or been damaged. If the lines/squares appear, disconnect the LCD connector once again and then reconnect.
Make sure that it snaps into place correctly. It can take a while (15-60 minutes of use) after the connector is reconnected before the white squares/lines disappear entirely.

iPhone 6/6+ battery replacement guide - Reconnecting phone screen cables - 1
iPhone 6/6+ battery replacement guide - Reconnecting phone screen cables - 2
iPhone 6/6+ battery replacement guide - Reconnecting phone screen cables - 3

Align the connector and connect it


Align the connector and connect it


Align the connector and connect it


iPhone 6/6+ battery replacement guide - Reconnecting phone screen cables - 4
iPhone 6/6+ battery replacement guide - Reconnecting phone screen cables - 5
iPhone 6/6+ battery replacement guide - Reconnecting phone screen cables - 6

Align the connector and connect it


Align the connector and connect it


Align the connector and connect it


Step 11

Connect the battery connector to its connector on the motherboard.
Put the metal plates (one covering the LCD, touch, home button and front camera connector and the other plate covering the battery connector) in place and screw them fastened.

iPhone 6/6+ battery replacement guide - Reconnecting battery connector
iPhone 6/6+ battery replacement guide - Reinstalling phone screen metal cover - 1
iPhone 6/6+ battery replacement guide - Reinstalling phone screen metal cover - 2
iPhone 6/6+ battery replacement guide - Reinstalling battery metal cover

Fasten the battery connector


Put the metal cover back in place if you removed the front assembly


Screw the metal cover fastened


Put the metal battery cover in place and screw it fastened


Step 12

Put the top side of the front assembly to the top side of the back assembly at a 45 degree angle. Move the bottom side of the front assembly downwards towards the back assembly while making sure the top side of the front assembly is next to the top side of the back assembly.

iPhone 6/6+ battery replacement guide - Reinstalling phone screen - 1
iPhone 6/6+ battery replacement guide - Reinstalling phone screen - 2
iPhone 6/6+ battery replacement guide - Reinstalling phone screen - 3

Reassemble the front assembly with the back assembly


Lower the front assembly downwards


Make sure the top of the front assembly is right next the top of the back assembly


Step 13

Gently press the front assembly downwards and click it together with the back assembly.
Screw fastened the two bottom screws.
You are now done.

iPhone 6/6+ battery replacement guide - Reinstalling phone screen - 4
iPhone 6/6+ battery replacement guide - Reinstalling phone screen - 5
iPhone 6/6+ battery replacement guide - Reinstalling bottom screws

Press the front assembly to the back assembly firmly but gently along the sides, starting from top to bottom


Press them carefully but firmly together…


Reinstall the two bottom screws


IMPORTANT!

If the phone does not turn on immediately after the battery replacement, the battery could be completely discharged. Let the phone charge for 15 minutes – it can take this long before anything shows up on the screen if the battery is completely drained.

After a battery replacement, the time and date may be reset to factory default, 1st of January 1970.
Because of this the phone will not detect the SIM-card and will say “Searching…” in the top left corner.
Connect your phone to iTunes or a WiFi network and wait a few seconds until the time and date are automatically set.

Restart your phone.

It is now ready to be used. 

Disclaimer: Replacing the battery can result in complications if not done correctly or if the iPhone is already damaged. ScandiTech cannot be held responsible for any damage or problems caused on the phone before, during or after the repair process.
If our instructions are not clear, we recommend emailing our support or consulting another replacement guide.