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My phone stopped working and I whent to a repair shop and they said the phone is bad and they took the battery. When I whent home I plugged it in with out the battery and it turned on and then turrned off is it possible the phone can still work, or is the circuit still good.
Why did the shop take your battery? Did they explain why? Your phone will not boot up completely without a battery, even if it is plugged in to a charger. You would need to try a new battery to see if your phone works properly or not.