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Unable to Wipe Cache Partition on my S21 Ultra + Battery Issues

(Topic created on: 02-05-2021 08:57 AM)
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Jhibraan
Journeyman
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Hello,

Recently  am experiencing issue with my battery life of my 21 Ultra.

When I bought my mobile in February, My charge was lasting around 1d 6hrs but today, 1st of May, Am getting only 15hrs of Full charge  as per the battery usage status.

Day by Day it is decreasing...
Refer to my Screenshot.

WhatsApp Image 2021-05-01 at 21.50.32.jpeg

I saw a video to use the wipe cache partition to reset the battery usage status but using the Power Key + Volume Up  button simultaneously + usb cable plug in on a pc but nothing happens, my phone boot normally.

I have work profile setup on the phone, is it because of that am unable to access the Recovery mode?

Any Solutions to reset the battery usage status?

I have tried *#0228# as well but still having 15hrs of charge...

All my apps are in deep sleep as well...

Please help 😞 

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12 REPLIES 12
GoanGeek
Samsung Members Star ★
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Try usb in power plug and see if it helps.
Also try charging your phone powered off.
Jhibraan
Journeyman
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Usb in power plug does not change anything The phone does not boot up in recovery mode even if the Volume up & power key is pressed simultaneously.

I will try like u said...switch off the phone when it's charging.

This really sucks...my battery usage is now 15hrs only..it has been just 20 mins since my last charge.

My battery dropped to 95%

Check the picture

Screenshot_20210501-010334_Device care.jpg

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GoanGeek
Samsung Members Star ★
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TBH the S21 Ultra drops very fast to 95% but kinda holds well between 90% to 40% ish.

In olden days you could run the battery down to 0% and charge it to 100% when off, sort of call power recycling or something.
You could try that.

Also have you checked if any app is draining the battery?
Jhibraan
Journeyman
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Nearly all my apps have been put in deep sleep...

Screenshot_20210502-013855_Device care.jpg

Now am at 80%

Screenshot_20210502-013648_Device care.jpg

 I hope samsung fixed it soon since I saw many posts like these in the forums...

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Aklima
Big Cheese
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Hi, Have u seen what apps are draining ur battery
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Plug your phone into a laptop of computer and try the same key combination.. only way it worked for me
Jhibraan
Journeyman
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Hello Aklima,

As you can see from the screenshot

Only these 2 apps r running in the background with 0.1 & 0.2%

Screenshot_20210502-134503_Device care.jpg

 Even i cannot boot from recovery to wipe my cache

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Jhibraan
Journeyman
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Nothing happens

The phone boot normally....😔

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Aklima
Big Cheese
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Hi,
I think u should take it to samsung to have a look at it.