Try starting the phone in [https://www.androidauthority.com/safe-mode-samsung-galaxy-s20-1082859/|safe mode] and check if the line appears or not.
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Try the following and check if either resolves the problem.
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If it doesn't, then a ''downloaded app'' may be the cause of the problem. The trick is to find out which one.
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You will need to uninstall each ''downloaded app'' one by one and test the phone in normal mode between each uninstall to see if the problem is still there or not. Once it has gone, then the last ''downloaded app'' that was uninstalled was the culprit.
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A ''downloaded app'' is one the you downloaded and installed on the phone and didn't come pre-installed on the phone when you first got it.
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* [https://thedroidguy.com/wipe-cache-partition-galaxy-s20-1123375|Wipe the cache partition] and check
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* Try starting the phone in [link|https://www.androidauthority.com/safe-mode-samsung-galaxy-s20-1082859/|safe mode] and check if the line appears or not. If it doesn't, then a ''downloaded app'' may be the cause of the problem. The trick is to find out which one. You will need to uninstall each ''downloaded app'' one by one and test the phone in normal mode between each uninstall to see if the problem is still there or not. Once it has gone, then the last ''downloaded app'' that was uninstalled was the culprit. A ''downloaded app'' is one the you downloaded and installed on the phone and didn't come pre-installed on the phone when you first got it.
Hi @kamal_bathusa
Try starting the phone in [https://www.androidauthority.com/safe-mode-samsung-galaxy-s20-1082859/|safe mode] and check if the line appears or not.
If it doesn't, then a ''downloaded app'' may be the cause of the problem. The trick is to find out which one.
You will need to uninstall each ''downloaded app'' one by one and test the phone in normal mode between each uninstall to see if the problem is still there or not. Once it has gone, then the last ''downloaded app'' that was uninstalled was the culprit.
A ''downloaded app'' is one the you downloaded and installed on the phone and didn't come pre-installed on the phone when you first got it.