Thanks admin, I have downloaded the stock mtk backup. i used SP flash tool v3 to flash only system.img as you advised (Android), it flashed correctly but the tecno logo didn't still move away (during booting it didn't even sound or animated). I also tried flashing other images boot.img,esr 1,esr 2, preloader.bin et al, excluding user data and cache, it was still the same result. i then tried to format only the phone using same SP flash tool v3, after complete formatting and showing OK, i forgot to remove the battery for 15 seconds, i just tried to switch it on after unplugging the USB, unfortunately it didn't come on again, even charging also it didn't. then i switched to v5 of SP flash tool, i ticked all the images bar userdata and cache, choosing download only as the option. It flashed completely and this time i observed the 15s but on switching on it was only showing a blank screen that boots on and off every 4 seconds until i remove the battery, even when trying to charge now, it does the same thing. please i need your help. thanks once again.