Chosen Solution
Hello So , I want to replace the screen , and first i want to check if the phone works with power supply , i put the voltage 3.7 when i connect the power supply to the battery terminals it shows a constant current of 0.25A before i even push the power button , and when i push the power button , the Amp meter moves slightly and then stand still , the screen is black , nothing changed any explanation for that and how to fix it ? thank you
Yes multiple causes are possible here. But you need to provide more history as in why do you need to replace the screen, was it repaired before, liquid damaged, or dropped hard? Or bent? And how much is it drawing from USB charger?
