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Samsung Galaxy S5 Active SM- G870A released June 2014. Repair for this device is extensive and requires the phone tool kit and heat gun.

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Constant power cycling and Reboot

I have customers Samsung S5 Active that every min would boot loop. After 24 hours I got it to update and did 4 system restores. I used Samsung Kies and Smart switch to try and repair and nothing. It has a brand new battery in it and no damage to the phone. I have noticed tho that if its plugged into a computer it does not restart, Unplugged and plugged into a charger on the wall it restarts. Any thoughts or ideas apart from wrapping it in C4 and watching it explode

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2 Answers

This may sound basic, but make sure that the power button isn't stuck. I had an S5 a few months back with the same problem, and it was because the power button was broken.

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power button is fine I thought that was well but since it stays on if Im at the root screen or plugged into a computer then with out power cycling its throwing me off


That is really tough. I know it's a little late, but I forgot to mention you can try using ODIN to restore the factory image. I use it all the time for work, if you can find the original factory image, and download it you can then activate ODIN mode and do a custom install... This may solve the issue, then again a GS5 may not be worth the time. Let me know if you're interested and I'll post instructions.


I am interested, please post instructions. I have a Galaxy S5 Active with the same issue. I like this phone very much but do not want to pay 3 times what it is worth to ahve someone else fix it or tell me it's not fixable. Therefore I am trying to fix it myself. Thanks.


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I'm having same issue love my s5, any luck?

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The Screen Spot will be eternally grateful.
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