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Original topic:

Android 12 OneUI 4.0 update failing at 25% of install

(Topic created on: 28-11-2021 02:41 PM)
XP12
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Galaxy S21 Series

Hello,

I have tried 3 times to install the current update and it fails by 25% and reboots on the previous version.

Anyone having a clue on what could create that problem?

My wife exact same phone (Samsung S21 Ultra 5G) was able to install it without a problem.

We are in Germany.

Thanks a lot in advance for your support

Kind regards

Xavier

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10 REPLIES 10
Beezer
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Galaxy S21 Series

Thank you for this post. I bought my wife a 'brand new' Samsung Galaxy Tab A (2019) from Amazon (BTW: this Tab A is wifi only, no cellular) and even tho I have the "identical" tablet that I bought in 2019, I could NOT get the latest update to install on the new one via either wifi or Bluetooth (wasting the time to try four attempts), but each time it failed the update at 25%  and rebooted to say the update failed.  After doing some research I wound up here and found this post which helped us (me) to finally get the update properly installed.  Smart Switch did the trick..

But setting  up this Tab  A was about the most difficult I've ever experienced over the five Samsung tablets I've ever owned. Not certain I really know this, but it SEEMS that there was apparently maybe more than just one update (?) to the 'original' software version this unit shipped with, and at one  point after an earlier update, I totally lost all wifi connectivity until it finally dawned on me to configure the wifi connection for 'un-metered'.  Wow...what a hassle! I'm bald enough already and this was just about making me rip what was left out of my scalp.  So, thanks for the assist, AndrewL

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