I can't turn on the phone or enter recovery mode (bootloop)
This is a soft brick and can be fixed. You'll need SP Flashtool and flashing files for your exact model something like this: 7041x or 7041d etc.


Download SP Flashtool
Download MTK USB Drivers and install them.
Download Flash files (model 7041d) or browse all files.


See this tutorial for a step by step flashing guidance.