Press and hold the power button for a few seconds. On your screen, tap Restart , or press and hold the power button for about 30 seconds, until your phone restarts.
Plug the phone into the proper charger and allow the device to charge for 48 hours. After the device has charged for 48 hours, turn the device on and check the battery's power level. You may find that your once-dead battery is revived, and is now able to hold a charge again.
It's possible you could also have a damaged charger. Try another cable or power bank, if you have them. You might also want to try another wall outlet or power strip, just to be sure. Check the charging port on the phone itself, too—lint or dirt can easily get caught in there and prevent the pins from making contact.
How do you know if your phone battery is completely dead?
For Android
Enter *#*#4636#*#* into the phone app and press enter. This will bring up a "Testing" menu with a section for "Battery information" in it. Here you'll be able to examine the state of the battery.
Check the charging port for bent or broken pins and lint. for 5-10 seconds. If the device powers on, but doesn't hold a charge, power cycle the device then charge fully and re-test. Ensure a manufacturer-approved wall plug and USB charging cable are used to avoid extended charging times or other charging issues.
Press and hold the device's power button until you see the manufacturer's logo on the screen. Your Android phone or tablet should resume its normal operation.
What to do if my iPhone died and wont turn back on?
Press and hold the side button until you see the Apple logo (this takes around 10 seconds). If your iPhone doesn't turn on, charge your iPhone for one hour and then try again. If your iPhone shows a low-charge battery , check your hardware and charge your iPhone again.
Most Android phones can be restarted by holding the Power button and then selecting Restart or Power off and restart from the Power Options menu. Note: Newer Samsung devices require you to hold the Power / Side button and Volume Down to make the Power Options menu appear.
If the battery is completely dead, it won't have enough power to turn over the engine, even with a jump start. In this case, you'll need to replace the battery to get your car running again. Another reason why a car battery won't jump is because there is a problem with the charging system.
How long does a dead phone battery take to charge?
If you have a fast USB-C charger, it'll charge your phone faster than if you have a standard Micro USB charger. But in general, it can take anywhere from 30 minutes to 1.5 hours to fully charge your Android smartphone, depending on the battery capacity of your device.
You can get a blank or black computer screen on startup, while updating software, or in the middle of device usage. Sometimes you can resolve a black screen on Windows 10 or 11 by rebooting your device. But in serious cases, you may need to perform a system restore or reinstall the operating system (OS).
Things You Should Know. A black screen when your phone is on happens because of faulty apps, battery issues, or mechanical screen problems. On Android, press and hold the Power and Volume Down keys for 7-10 seconds to force-restart.
To soft reset, you can try pressing the power button and volume down button simultaneously for more than seven seconds. This may restart the device and get the screen to a normal state again.
Press and quickly release the volume up button. Press and quickly release the volume down button. Press and hold the side button. When the Apple logo appears, release the side button.
When your iPhone has just died, you can tell if you're properly charging it by the icons on the black screen. If you only see an empty battery icon, your iPhone is charging and will power on shortly. But if you see that icon with a cord next to it, your iPhone is not charging properly.
hours? It should take about 3 hours for a full charge using the USB wall adapter. If it was charged to at least 50%, then turned off before storing it the phone should recover. However, if it was left powered on and near discharged permanent damage may have been done to the battery.
