You can download the latest version of MTKDroidTools v2.48 from here:
https://mega.co.nz/#!zRUkVKgT!N8RdtFv60V4KQTKGws0qVngm7-IMuDftKg2W46bsTVo
You need to install MTK UBS drivers and enable USB debugging from Settings > Developer Options menu. You can get the drivers from here:
https://droidchina.com/forum/Thread-How-to-install-MT-MTK-65xx-USB-driver-on-Windows-7
or from this thread
https://droidchina.com/forum/Thread-PDAnet-ADB-USB-Driver-For-Windows
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