To replace the battery in your Mi A2 Lite (model number: M1805D1SG), first note that the required replacement part is a BN47 battery, which can be sourced from online retailers like AliExpress.
A discharged battery reduces risk of fire in case of accidental damage.
Be cautious when prying the back cover — only target the plastic frame and avoid gaps between the frame and glass.
Risk of short circuit when using metal tools.
Skipping this step may damage the adhesive strips required for the next step.
Be careful not to damage the orange flex connector, located to the right of the adhesive strips.
If the strip breaks off underneath the battery, refer to the next step for guidance.
Apply 99% isopropyl alcohol under the broken strip using a syringe.
Avoid forcing the battery if the adhesive is still strong — instead apply more alcohol as needed.
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