Introduction
Is your battery running out way too fast? Are you forced to recharge your S7 more than once a day? This guide will show you how to remove the tired old battery in your S7 and replace it with a new one.
Note that the video guide recommends removing the SIM card. This is not necessary, but won't negatively affect repair if you do remove it.
Before disassembling your phone, discharge the battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured.
If your battery is swollen, take appropriate precautions. Do not heat your phone. If needed, you can use a dropper or syringe to inject isopropyl alcohol (90+%) around the edges of the back cover to weaken the adhesive. Swollen batteries can be very dangerous, so wear eye protection and exercise due caution, or take it to a professional if you're not sure how to proceed.
Tools
Parts
-
-
When the back panel is warm to the touch, apply a suction cup as close to the heated edge of the phone as you can while avoiding the curved edge.
-
Lift on the suction cup and insert an opening pick under the rear glass.
-
-
-
Once you have the pick firmly inserted into the glass, reheat and reapply the iOpener to soften the adhesive.
-
-
-
Slide the opening pick down along the side of the phone, separating the adhesive.
-
Leave the pick in place and grab a second pick as you proceed to the next step. Leaving the pick inserted can help prevent the glue you just separated from re-adhering.
-
-
-
Repeat the previous heating and cutting procedure for the remaining three sides of the phone.
-
Leave an opening pick in each edge of the phone as you continue to the next to prevent the adhesive from resealing.
-
-
-
If you're cleaning the midframe surface with isopropyl alcohol, be careful not to get any alcohol on the wireless charging coil. The coil coating will break down if it contacts alcohol.
-
-
-
Insert the tip of a spudger into the small notch on the left side of the antenna assembly, and pry the assembly up and out of the frame.
-
Remove the antenna assembly.
-
-
-
Apply some high concentration (>90%) isopropyl alcohol under each corner of the battery and allow it to penetrate for several minutes to help weaken the adhesive.
-
Alternatively, prepare an iOpener and apply it directly to the battery.
-
Apply the iOpener for at least a minute to soften the battery adhesive.
-
-
-
Slide an opening pick up the side of the battery to break apart any remaining adhesive.
-
Lift the battery out of the case.
-
To reassemble your device, apply adhesive to the back glass and follow these instructions in reverse order.
After completing this guide, calibrate your newly-installed battery.
57 comments
After this is it still waterproof?
In theory, if you applied the replacement adhesive 100% correctly, it will retain its water resistant properties. However, I would never deliberately expose any device to water, as you can never be completely sure that all the seals are perfectly intact.
That is actually covered in the video. Did you actually watch it? If water resistant is important to you then what you would do is purchase new gasket material so that after you have opened up the phone and removed all the existing gasket you would apply the new gasket and then finish up and re-seal your phone. As to how water resistant it is after re-sealing the phone all depends on how careful you are and how exact your work is.
Sooooooooo why exactly did Samsung make it impossible to open the phone?
Because screws are unsightly :P… and repairing your old phone makes you not want to buy a new phone.
The display is coming off instead of the back panel. Do you have any suggestions if this happens?
I used a heat gun and heated it a little too much. The color of the rear glass is just a sticker on a clear cover. Due to this I tore the sticker off. Now the back cover is see through, which isn’t a bad thing but the repair was for a customer.
Kevin Bishop -
When using the iOpener, you may need more than 30 seconds, especially in compact or low wattage microwaves. Take this slowly, though, and be extremely careful, as it is easy to overheat your iOpener. Remember, you can always heat it up a tad more, but you cannot undo overheating it.
Jacob Pratt -
I used an adjustable heat gun and set it to 400 degrees (F). That was enough to seperate the glass without having to worry about exposure times of the heat. The front of the phone was just fine. Just be ready to use a bunch of picks to slide in between because they will be needed this way.
Ryan Schumerth -
I went from the bottom center up, using one ifixit tools, one suction cup and one pick.
Pick just popped in with some minor pressure.
Laid heat pack along base of phone 2 mins first and worked up slowly, rotating picks as I went. Had to heat iopener over several 30 second bursts
Lauren Burt -
This is useless because the phone does not recognize the new battery and will behave like on the old one
Search for “battery count xda"
Albert Einstein -
That is an interesting discovery! Thanks for pointing it out—I’ll have to look into it.
Even if this is true, replacing the battery should still give restore a significant amount of life, since the max voltage affects a minor amount of the battery’s capacity. If you charge a worn battery and a new battery to the same lower max voltage, the worn battery’s voltage will dip more under use and will be depleted faster.
Arthur Shi -
Thanks for the guide! It helped me replace a friend's battery with no problems!
Darren Crook -
I will never replace a screen again, and don’t recommend it. Not for phones nowadays. Once upon a time everything was screwed together, and you might even get the same quality or better screen when buying from eBay. And having the phone repaired was nearly the cost of the phone. Now, it’s the reverse. Removing the glued back and screen and cleaning off all the glue for a clean re-seal is an ordeal that takes multiple hours, AND, often the screen you buy on eBay is NOT OLED, but an LCD, and a blurry one at that. And the local phone repair store will replace the screen with an OLED, reliably, same day turn around, for not much more than the cost of an actual OLED screen, because they have the parts in bulk, and the tools and experience to do it quickly. Never again!
domarius -
have you ever had one that just wont open at all? i can not get mine to open to replace the battery i have heated with a heat gun and attached suction cup and it will not lift at all
Carla James -
Hi Carla,
I've definitely had that experience before. The adhesive is very strong, and the curved back makes getting the initial seam very difficult. I'd suggest focusing on one small area on the edge. Apply steady force when you pull, and repeat a few times to loosen the adhesive. Eventually it will give and present a small gap.
Arthur Shi -