Small gray stripe began to appear - Xiaomi Mi 8 Lite Questions & Answers

Hi,
I have this phone: XIAOMI MI 8 LITE
Android: 10
Operating System: MIUI 12.0.3
Since the operating system was upgraded to MIUI 12.0.3
Such a small gray stripe began to appear vertically on the left side of the screen that you can play with and lower it from top to bottom or vice versa and even put it in the middle of the screen ...
What is this little stripe supposed to do? What is its role and how is it thrown off the screen because it interferes with some apps to see everything?
Thanks in advance

Related

[Q] Rotated upside-down

Hi, everyone!
I had to flash my phone because one day it got stuck in the boot logo. I didn't have the ROM backed up since I was not planning to mess with the phone's software in any way.
I own a Star N800+. Sadly, I couldn't find a suitable ROM anywhere. So I followed @cybermaus ' advice (find a ROM for a phone that has same processor, same memory, same buttons, same screen type and resolution, same sensors, same camera -- http://forum.xda-developers.com/showthread.php?p=36326293#post36326293) and decided that Star/Ulefone N9770 had to have the same hardware. So I flashed a couple of ROMs for N9770 into my N800+ and each one worked great (that is, camera, gps, wifi, g-sensor, buttons where all working) but the screen was rotated upside-down. I mean, every single thing that gets diplayed on the phone from boot logo, to android menu, to every app, to the image from the camera are shown rotated upside-down but in order to operate the phone you have to tap as if you were viewing it right. For example, to tap on the upper-left corner of the image you have to tap on the lower-right corner of the phone's display.
Mi guess is that even if both phones may have the same hardware, there should be some parameters that are not the same for both models. Could anyone, please, give me a hint on this matter?
Here is my phone info:
Star N800+
MT6577 processor,
bootloader came unlocked from factory,
Android version e1909c_v77_jbl_9p017_6628
Baseband version MAUI.11AMD.W12.22.SP.V15
Camera Aptina A-pix MT9p017
Build.prop settings
heraklejon said:
... the screen was rotated upside-down. I mean, every single thing that gets diplayed on the phone from boot logo, to android menu, to every app, to the image from the camera are shown rotated upside-down but in order to operate the phone you have to tap as if you were viewing it right. For example, to tap on the upper-left corner of the image you have to tap on the lower-right corner of the phone's display.
Mi guess is that even if both phones may have the same hardware, there should be some parameters that are not the same for both models. Could anyone, please, give me a hint on this matter?
Click to expand...
Click to collapse
Update:
I tried to change ro.sf.hwrotation in /system/build.prop from 0 to 180. Some people reported this will rotate lcd display while keeping touchscreen settings. Nothing happened in my device.

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