The battery of our smartphone is the component that will give us the most problems throughout its useful life. This is because it is the part that wears the most over time and, in addition, on which the rest of the device hardware depends.
When this happened, years ago, changing the battery of our Xiaomi mobile was as simple as removing the back cover, removing the old battery, inserting the new one, and turning the smartphone back on. However, with the imposition of “unibody” terminals on the market, accessing the interior of modern phones to replace the battery is somewhat more complicated.
Therefore, in this guide to fix your Xiaomi you will find all the steps and tools necessary to open your phone and proceed to change the battery.
Beware of the warranty
The Xiaomi warranty conditions make it clear that “Unless otherwise provided by applicable law, the warranty lasts and is granted for two (2) years for the main unit, two (2) years for the originally packaged battery and charger. with the product.”
For this reason, if your mobile has already reached two years, you can carry out any repair on it without problem but if not, it is best that you contact the company so that its technical service can fix the problem of the mobile battery .
Where to buy batteries?
After knowing that the battery is the origin of the problem with your Xiaomi, before opening the Xiaomi phone, it is normal that you have already bought a replacement battery to change it for the old one.
Amazon has a good catalog of components of spare parts for mobile phones of the brand and from the following link you can find the one you need, simply choosing the model you want to repair.
What tools do I need?
To change the battery of your Xiaomi mobile and any other phone, you will have to use a series of tools that, luckily, are not very expensive. For 10 euros you can find screwdriver kits, double-sided tape, levers, adhesives, suction cups and everything you need to achieve your goal.
Replace the battery of your Xiaomi, Redmi or Pocophone mobile
In general, all Xiaomi models with Unibody design follow a similar process to disassemble their screen, access the interior of the phone and be able to remove the battery to connect a new one.
Opening the phone
- Turn off the phone
- Remove the SIM and MicroSD card
- Apply heat to the back of the mobile with a hairdryer
- Place a suction cup on the bottom of the back cover of the phone and lift it towards you until you create a tiny space between the body and the glass.
- Insert an opening pick into the space created.
- Slide the pick to the lower right corner
- Repeat the two previous steps but now move the second pick to the lower left area
- Now we must slide a third pick along the phone to take off the adhesive. You can use all the spikes you need until you manage to separate the screen from the body, always without exceeding 5mm of insertion in the device.
- Pull the suction cup to one side of the phone and leave the back panel resting against the phone.
- Take the Sprudger (tool that you can see in the photo) and disconnect the cable that goes to the fingerprint reader, if it has one.
- Remove all the screws that you find on the back. (This point may vary between models and the screws may be lower or higher in number)
- Use an opening pick to cut the adhesive underneath the black protective mat covering the upper speaker assembly (there is a small piece of protective copper foil underneath the NFC assembly and charging coil. Be careful not to damage it)
- Once removed, insert a pick to remove the cover from the phone’s motherboard, if it was on top of the mobile
- Remove the black foil that covers the battery
- Again use a spudger to lift and disconnect the flex cable from the battery
- Repeat the previous step with all the cables that go to the battery using the sprudger or the spikes
- If there is something that prevents lifting the battery (such as the speaker), you will have to unscrew it
- Unfold the battery tabs with the help of tweezers
- Reapply heat to the battery area to plumb any type of adhesive that we can find on the component.
- Pull the removed tabs towards you with the help of tweezers very carefully, checking if there is any connection between the battery and the phone that we have not removed. The suction cup that we have used to remove the back of the Xiaomi mobile can help you.
- Remove the battery completely
Now, to place the new cell on your phone, you will have to repeat this process but in reverse, which is why it is recommended that you note or remember where each cable goes and where each screw is inserted.
Exceptions
There are some older models like those of the Mi A family, which will involve an extra step when changing the battery. If you see that your mobile has some screws around the charging port, before starting the process you must remove them to be able to detach the screen from the frame.
Aspects to consider
- We recommend photographing the mobile before taking each step so that you can know 100% where each component was connected.
- Never pull or force a cable, following the steps indicated you should remove it without difficulty.
- When you use a heat source, do it for short periods of time and checking that it is not too high.
- Do your best not to deform the battery during the removal process. Lithium-ion softshell batteries can leak dangerous chemicals, catch fire, or even explode if damaged. Do not use excessive force or interfere with the battery with metal tools.
- Do not reinstall a damaged or deformed battery, as doing so is a potential danger to the integrity of the phone.
- If you have any doubts throughout the process, it is best to take the mobile for repair before damaging it completely.