Enable USB Debug
Allow OEM Unlock
Disable DM:
Dial *#9527*# >> Choose DM >> Insert Pass : 54321 >> Cancel >> Exit
Install Openrp.apk with adb Command
adb install (drop apk here) >> Enter
Run Openrp.apk:
adb shell monkey -p com.yulong.openrp -v 500
abd reboot
it will enter to factory mode
adb device
if Device Unautorishized
then
adb kill-server
adb start-server
let's backup Recovery n Boot
adb shell dd if=/dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/recovery of=/storage/self/primary/stock_recovery.img
And
adb shell dd if=/dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/boot of=/storage/self/primary/stock_bootimg.img
Flash TWRP Image
adb push (drag and drop the recovery image file here)/storage/self/primary/
remember to put target after recovery file insert (/storage/self/primary/)
adb reboot
adb shell dd if=/storage/self/primary/recovery_twrp_e502.img of=/dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/recovery
if no such file, device still loading. repeat code untill loaded
adb reboot
Exit Factory Mode by Ufi >> Special Task >> Exit Factory Mode (You should connect in Download Mode)
don't turn on Device, go to directly Recovery Mode by press and hold Volume Up + Power
when enter TWRP, Install SuperUser >> Wipe cache >> Reboot System
it will boot twice,
First Install SU, Second boot Normal