Galaxy A71 Bootlooping, stuck on charge screen

[MAlam86]

I have a Galaxy A71 that only turns on once it's plugged into power, and when it is, it only shows the battery charging screen. I've included a picture, but it doesn't show the actual battery percentage, only the little screen that indicates that it's charging. The phone worked last week, so I know the battery isn't bad.

Issue:

Phone will only show battery charging screen. When the volume down + power buttons are held, it'll show me the "Galaxy A71 Secured by Knox" screen, then start bootlooping/

Trouble Shooting Steps Taken:

Booting into download mode works, so I've done that and flashed a stock ROM using Odin. The ROM flashed successfully, but the device still doesn't boot.

I've used the OEM charger, and then another charger that shows me the wattage the device is pulling. It'll consistently pull 2W, so I don't think the battery or board is bad.

Opened up the phone and removed the battery cable, tried to boot it with the power cable in, and still nothing.

Please let me know how I can get the phone to boot.

Thanks!

[BandOfBrothers]

I would usually say ask a Samsung Service Centre to look at the phone @MAlam86 however if you've opened the phone up then that voids the warranty.

You state " Opened up the phone and removed the battery cable, tried to boot it with the power cable in, and still nothing. "

The Samsung Community Forum Rules state > https://eu.community.samsung.com/t5/news-rules-faqs/community-policy-on-dangerous-diy-unorthodox-rep... 

You could ask a standalone repair shop to take a look. 

I wish you all the best. 

[MAlam86]

Hey, thanks for the help!

I think I'll likely take it to the repair shop, but the battery voltage seemed a little low. I'll see if they've got an extra battery to test it out, and hopefully that'll be all it is.

[MAlam86 · Accepted solution]

Issue was that the battery was far below the nominal voltage. Not sure how it happened, but a new battery fixed the issue. Phone works as normal now. Thanks for your help!