RamkumarMasilamani
Active Level 4
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Galaxy A
Some solutions for *SM-A80 After update of UI 3 Calling Issue.*

Uninstall 3rd Party Application

Method1: Setting Reset (30 % Work) No Data Loss Take backup precaution
 Go to Setting 
 Account 
 Reset All Setting. 

Wipe Cache Partitions (60 % Work) No Data Loss Take backup precaution
 Turn Off Your Handset (directly or Power + Volume Down) 
 Connect with Ear head or USB (Connected with PC/Laptop) 
 Hold Power & Volume UP Until recovery mode screen 
 Select Wipe Cache Partitions 
 Once completed, Select Reboot 

Repair App (80 % Work) No Data Loss Take backup precaution
 Follow Steps for Wipe Cache Partitions (Until recovery mode screen) 
 Select Repair App 
 Once completed, Select Reboot 

Factory Reset (90 % Work) Data Loss
 Take Back-up your Handset using Smart Switch with your PC/ Laptop 
 Follow Step for Wipe Cache Partition (Until Recovery Screen) 
 Select Factory Reset 
 It will erase entire data of your handset. 

If nothing works, please visit Customer Care or Flash your Handset with yours Risk.
4 Comments
Royale_ambassador
Active Level 3
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Galaxy A

these kind of problems is common when new devices launch. ;)

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FarazM30s
Active Level 10
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Galaxy A
kindly register your concern in Samsung Members app (Samsung Members app > Get help > Feedback > ask question).
they will give copy paste reply (as formality) but your concern will be registered.
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vamshikrishnas
Active Level 4
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Galaxy A
Try this method its working for most of the people

Repair App - No Data Loss

1. Turn Off Your Handset
2. Connect with Ear head or USB (Connected with PC/Laptop)
3. Hold Power & Volume UP Until recovery mode screen
4. Select Repair App
5. Once completed, Select Reboot
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Orineatanl10
Beginner Level 2
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Galaxy A

Delete True caller and Samsung tutor. that solved it for me.

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