I have been using this phone for 4 years. A few days ago, while watching reels, the phone suddenly turned off. When I took it to a repair shop, they said the phone's CPU might be damaged because it's an old model.
But I think the phone is fine, only the display has a problem. Because when I connect the phone to the laptop, the laptop shows that the phone is on.
If the CPU is fine, it might cost about 2000 Taka or a little more to fix just the display. And if there is a problem with the CPU, it might cost about 5000 Taka or less to fix the whole thing including the display.