Xiaomi Mi 11 Lite Battery Replacement

Introduction

Use this guide to replace a worn-out or dead battery in your Xiaomi Mi 11 Lite.

If your battery is swollen, take appropriate precautions.

For your safety, discharge your battery below 25% before disassembling your phone. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair.

You’ll need replacement adhesive to reattach components when reassembling the device.

What you need

Step 1 Heat the rear glass

Xiaomi Mi 11 Lite Battery Replacement, Heat the rear glass: step 1, image 1 of 1

Prepare an iOpener and apply it to the rear glass for at least two minutes to loosen the adhesive underneath.
A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the phone—the display and internal battery are both susceptible to heat damage.

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Step 2 Create a gap

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Xiaomi Mi 11 Lite Battery Replacement, Create a gap: step 2, image 3 of 3

Secure a suction handle to the right edge of the rear glass, as close to the edge as possible.
If the rear glass is cracked, the suction handle may not stick. Try lifting it with strong tape, or superglue the suction handle in place and allow it to cure so you can proceed.
Lift the rear glass with the suction handle to create a small gap between the rear glass and the frame.
If you have trouble creating a gap, apply more heat to further soften the adhesive. Follow the iOpener instructions to avoid overheating.
Insert an opening pick into the gap you created.
Slide the opening pick to the top right corner to slice the adhesive.
Leave the opening pick in place to prevent the adhesive from resealing.

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Step 3 Slice the adhesive

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Xiaomi Mi 11 Lite Battery Replacement, Slice the adhesive: step 3, image 3 of 3

Insert a second opening pick underneath the top right corner of your phone.
Slide the opening pick along the right edge to slice the adhesive.
Leave the opening pick in the bottom right corner to prevent the adhesive from resealing.

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Step 4

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If the adhesive becomes hard to cut, it has most likely cooled down. Use your iOpener for one to two minutes to reheat it.
Insert a third opening pick at the bottom right corner of your phone.
Slide the opening pick along the bottom edge to slice the adhesive.
Leave the opening pick in the bottom left corner to prevent the adhesive from resealing.

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Step 5

Xiaomi Mi 11 Lite Battery Replacement: step 5, image 3 of 3

Insert a fourth opening pick underneath the bottom left corner of your phone.
Slide the opening pick along the left edge to slice the adhesive.
Leave the opening pick in the top left corner to prevent the adhesive from resealing.

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Step 6

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Insert a fifth opening pick underneath the top left corner.
Slide the opening pick along the top edge of the rear glass to slice the remaining adhesive.

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Step 7 Remove the rear glass

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Remove the rear glass.
Secure the new rear glass with pre-cut adhesive or double-sided adhesive tape. After installing the rear glass, apply strong, steady pressure to your phone for several minutes to help the adhesive form a good bond—a stack of heavy books works well.

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Step 8 Unfasten the motherboard cover screws

Xiaomi Mi 11 Lite Battery Replacement, Unfasten the motherboard cover screws: step 8, image 1 of 1

Use a Phillips screwdriver to remove the eleven 3.4 mm-long screws securing the motherboard cover.

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Step 9 Pry up the motherboard cover

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Xiaomi Mi 11 Lite Battery Replacement, Pry up the motherboard cover: step 9, image 2 of 3

Xiaomi Mi 11 Lite Battery Replacement, Pry up the motherboard cover: step 9, image 3 of 3

Insert the tip of an opening pick underneath the left edge of the motherboard cover.
Use the opening pick to pry up the motherboard cover.
Remove the motherboard cover.

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Step 10 Disconnect the battery cable

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Xiaomi Mi 11 Lite Battery Replacement, Disconnect the battery cable: step 10, image 2 of 2

Use a spudger to disconnect the battery cable by prying the connector straight up from its socket.

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Step 11 Disconnect the SIM card tray cable

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Xiaomi Mi 11 Lite Battery Replacement, Disconnect the SIM card tray cable: step 11, image 2 of 2

Use the flat end of a spudger to disconnect the SIM card tray cable from the motherboard.

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Step 12 Remove the graphite film

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Xiaomi Mi 11 Lite Battery Replacement, Remove the graphite film: step 12, image 3 of 3

Slide an opening pick underneath the graphite film at the bottom end of your phone and carefully separate it from the battery and loudspeaker assembly.
Remove the graphite film.

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Step 13 Free the battery

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Xiaomi Mi 11 Lite Battery Replacement, Free the battery: step 13, image 3 of 3

During the following step do not fold the cables sharply and only bend them to avoid cable damage.
Fold the SIM card tray flex cable towards the charging port in order to get free access to the battery.
You might want to use a small piece of tape to temporarily stick the cable onto your working surface to avoid accidentally damaging it during the battery removal.

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Step 14 Peel off the battery pull-tabs

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Xiaomi Mi 11 Lite Battery Replacement, Peel off the battery pull-tabs: step 14, image 2 of 2

Take care not to puncture or bend the battery with your tool—a punctured or bent battery may leak dangerous chemicals or cause a thermal event.
Use a pair of blunt nose tweezers or a clean fingernail to peel the orange adhesive strip labeled with an A off the battery.

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Step 15 Peel off the battery pull-tabs

Xiaomi Mi 11 Lite Battery Replacement, Peel off the battery pull-tabs: step 15, image 1 of 2

Xiaomi Mi 11 Lite Battery Replacement, Peel off the battery pull-tabs: step 15, image 2 of 2

Use a pair of blunt nose tweezers or a clean fingernail to peel the orange adhesive strip labelled with a B off the battery.

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Step 16 Lift up the battery

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Xiaomi Mi 11 Lite Battery Replacement, Lift up the battery: step 16, image 2 of 3

Xiaomi Mi 11 Lite Battery Replacement, Lift up the battery: step 16, image 3 of 3

Pull up on the orange adhesive strip to lift the battery out of its recess and swing it up to an upright position.
Although these adhesive tabs are supposed to make the battery removal easier, they may require some force. If you're having trouble removing the battery, you can apply a heated iOpener to the center of the display to loosen the adhesive underneath.
Peel the battery off the remaining adhesive.

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Step 17 Remove the battery

Xiaomi Mi 11 Lite Battery Replacement, Remove the battery: step 17, image 1 of 1

Remove the battery.
During reassembly, temporarily reconnect the battery to the motherboard to help align it correctly. Disconnect the battery after it is seated.
In case you're replacing the adhesive sticker with a new one, peel the battery's adhesive sticker off the midframe and clean the relevant areas with isopropyl alcohol (>90%). Let the alcohol dry before installing new adhesive.
Secure the new battery with pre-cut adhesive or double-sided adhesive tape. In order to position it correctly, apply the new adhesive into the device at the places where the old adhesive was located, not directly onto the battery. Press the new battery firmly into place.

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Conclusion

If possible, turn on your device and test your repair before installing new adhesive and resealing.

For optimal performance, calibrate your newly installed battery after completing this guide.

Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.

To reassemble your device, follow these instructions in reverse order. During reassembly apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

9 other people completed this guide.