Stop
A lifting back panel combined with puffiness often means a swollen lithium battery — stop using and charging the phone and get it serviced right away; do not puncture or bend it.
Symptoms
- Gap appears along one or more edges of the back panel
- Panel feels loose when pressed
- Phone may feel puffy or uneven in that spot
Likely causes
- CommonSwollen battery pushing the back panel outwardBatteries expand with age or heat damage and are the most common cause of a lifting back.
- PossibleAdhesive failure from heat or ageGlue can degrade over years even without a battery problem.
- PossibleWater intrusion breaking down the sealPrior water exposure can loosen the adhesive from the inside.
What to do
- Stop charging the phone immediately if the lifting is paired with puffiness — this can indicate a swollen battery.
- Do not press down hard on the lifted panel or try to force it flat.
- Do not puncture, bend, or pry at the panel yourself.
- Photograph the gap so you can show a technician exactly where it's lifting.
- Take the phone to a repair shop promptly for inspection and likely battery replacement.
When to call a pro
See a repair shop immediately; a swollen battery is a fire risk and should be replaced by a professional, not removed at home.
Safety
Stop
A lifting back panel combined with puffiness often means a swollen lithium battery — stop using and charging the phone and get it serviced right away; do not puncture or bend it.