I have a Samsung Galaxy Note 4 that was working great until the last AT&T software update. Now my battery drains in just a few minutes after charging it to 100% several times a day. Help there has to be some way to fix this. Yes I bought a brand new battery from Samsung and have the same issue as the old battery. I am so tired of carrying around my power bank all day long and worrying I may miss or drop an important call because of it.
Having your battery drain quickly can be quite disheartening. I am sorry to hear this issue is occurring, and would love to get this resolved!
Since you have tried a new battery, I recommend using our Troubleshoot & Resolve Tool. Select your make and model, and then your issue. This will provide personalized troubleshooting tailored to your device.
A last resort would be a factory reset. This will wipe your device completely, so be sure to make a backup prior! Instructions for this can be found on our Device Support Page. Select your make and model > Tutorials > Backup & Restore. The reset instructions can also be found in here under Tutorials > Troubleshooting > ResetDevice.
I hope this helps. Have a fantastic weekend!
Jonathan, AT&T Community Specialist
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