sorry, there's is no tutorial for this and it has a quite process. you just need to throttle the proc temperature of your phone board using hot blower or any device you have. while your phone is in high temp. both pin board and battery is in unplug hold vol down then put back the board pin and battery pin at the same time. it will vibrate and fastboot will be fine.
both procedure not work on mine, probably because i remember i tried to re-flash my device via edl using miracle crack software, then happen partitions got formatted that time, now im trying to flash parttions manual but keep getting error, has anyone know to flash partitons manual, qdloader 9008 is only detected in my pcGuys this is my procedure to turn on the phone:
I can make it turn on Android after messing with the battery and sub-board cables but this is just a workahound, trying to turn it on normally through the power button always makes it turn on in edl mode
But opening the device voids the warranty, so anyone who has access to a repair center is better off asking for the warranty
What to do:
1. Disconnect the battery cable and the secondary board cable.
2. Connect charger.
3. Hold the power button.
4. Connect the secondary board cable and quickly connect the battery cable.
It doesn't always work the first time, you may need several tries to get it