I wacth youtube see them powering the android phone (by power supply) just 2 pin (+) and (-) of the phone, or run them without battery. Please help me , Thanks!
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Some devices (iPhone’s for example) require the presence of a battery in order to boot but will continue to work if they are plugged in and the battery is disconnected.
However, if you want you can hardwire a power source directly to the battery terminals. You need a clean 4.2V source and then connect the positive terminal of the power source to the positive pin of the battery connector on the logic board, and likewise for the negative terminal. The phone will think it is being powered by a battery and will boot and work properly.
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Sounds interesting. I think it might be possible. What are the YouTube videos you have seen?
da Santiago Alfaro
It is here
https://www.youtube.com/watch?v=XCPF5oPe...
https://www.youtube.com/watch?v=ZbIUOWMx...
https://www.youtube.com/watch?v=KvPHhS6M...
da Vu Pham