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Original topic:

Excessive battery drain after restart [J5 2015]

(Topic created on: 28-12-2021 06:02 PM)
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My dad's J5 had a SIM card error, and moved the card from SIM 2 to SIM 1. Home screen wallpaper changed (without reason, not a big problem) and exessive battery drain from 70% to 33% after removing battery. Battery not swollen. What may be the reason? 

Samsung Maker ★★
Other Smartphones

It's probably going to be a case of troubleshooting steps @GalaxyA51user 

  • Try your sim card in another phone as a process of elimination to help rule out a sim card issue.
  • Clear your phone's System Cache Files by turning your phone Off and then from a set series of button presses go into the phone's System Files and clear the cache. No information is lost this way. You may need to insert your headphones or hook upto a computer with your data cable to get to this menu on the phone. No personal information is lost. 
  • Last resort is a back up and factory reset.
  • A Samsung Experience Store or Samsung Service Centre can take a look.

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The advice I offer is my own and does not represent Samsung’s position.
I have no affiliation with Samsung.

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Thanks, SIM problem, I moved SIM card from slot 2 to 1. Card worked, 4G worked and Google opens (which means Internet working fine). But now, the battery problem. 6 years of usage, battery needs to change now.