woke up with a dead phone. the phone was plugged in to the charger overnight and when i woke up all i had was a black screen. tried force restarting the phone. tried plugging the phone in to a computer. tried multiple known working chargers. due to the pandemic and my desperation i checked in to a local repair shop they opened the phone and unplugged the battery from the main board and checked diodes and said a bigger repair shop needs to take a look. they didnt have spare battery to check on my phone. if i bought a new battery what are the chances of seeing my phone back to life?