Malware/Trojan survives factory reset, what can I do ? ( no usb connection)
Hello, my JIayu F2 phone got a problem, I don't know if it's a virus/malware/spyware exactly, Malwarebytes found pup.riskware.smsreg but after factory reset it doesn't find anything and the problem is still here.
There's a hand cursor that appears on the top screen and it seems like the phone is taken over, it's extremely hard to navigate and ads pop up left and right even if I disable unknown sources. Parasite apps also spontaneously install themselves.
I have changed my google password, reset the phone to factory settings, the problem is still there even before I connect the phone to the internet.
I can't flash a ROM because the phone is hard to navigate and the USB port broken. Can't install apps from the playstore, the malware blocks the download, but I can install Apks.
Is there any app I could install to check what is going on? Malwarebytes doesn't find anything anymore, should I use something else?
If there's a way I could flash a rom without the USB I'd be glad to do it but the apps I tried (flashify, rom manager) don't see the zip file image to reboot in recovery
Thanks in advance