My phone is infected. - Android Q&A, Help & Troubleshooting

So recently i started having problems with a "Settings" up appearing on the app settings that shows ads and another app (Im not sure if they are the same) called com.chunmei.calculator and the settings app keeps reinstalling itself despite 360 Security detecting and removing it also the chinese calculator app was apperantly detected as installed on the play store but it said it wasnt installed from it, i uninstalled it anyway but it keeps coming back.
These ads started appearing if i remember correctly after i installed an update using System Update and i don't know how to remove them so im wondering if ill need to flash a new ROM (AKA brick my device on accident) which i have no idea how to do or what.
My phone is a Leagoo M8 running the rebranded Android 6.0 it came with.
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You must have downloaded a malware that's now installing others. You can use any of the following alternatives to get your device fixed.
1 Reinstall/flash your stock ROM and flash only the system.img since that's where the apps are installed.
2 Root your device, then you use a root explorer to locate and remove all the malwares.
3 Use a Software tool like CM2 to remove malwares.
Or visit a technician if the above can't be achieved.
Sent from my Infinix-X551 using Tapatalk

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Christianihechi said:
You must have downloaded a malware that's now installing others. You can use any of the following alternatives to get your device fixed.
1 Reinstall/flash your stock ROM and flash only the system.img since that's where the apps are installed.
2 Root your device, then you use a root explorer to locate and remove all the malwares.
3 Use a Software tool like CM2 to remove malwares.
Or visit a technician if the above can't be achieved.
Sent from my Infinix-X551 using Tapatalk
Click to expand...
Click to collapse
1 Like i said i have no clue how to do that especially how to do it without basically wasting 100 euros on a phone for nothing.
2 I don't even know if there's a root for the Leagoo M8 and how to root it or where to find it.
3 I can't even find a program called CM2 on google search.
4 Implying my mom will let me waste her money for fixing the phone.

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So why are you here, is it not to learn how to solve your device issues?
Sent from my Infinix-X551 using Tapatalk

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If Malware
If you have malware or any other similar then i would recommend downloading Malwarebytes Anti Malware from Play Store. It should delete the malware for you but if it doesn't work then try similar virus apps.

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I have the same in a Leagoo M5 Plus, I even flashed the stock ROM several times and the malware keeps reinstalling itself. Any help?