Samsung Galaxy A55
It's not possible to turn on my phone
Solution 2 of 3: Your phone doesn't turn on correctly
Before you can turn on your phone, you need to insert your SIM into your phone.
Press and hold the Side key until your phone is turned on.
If you're asked to key in your PIN, do so and press OK. The default PIN is 1111.
Press the Side key.
Simultaneously, press and hold the lower part of the Volume key and keep them both pressed.
Press Power off.
Press Power off.