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Hello. My battery is dead and I can not start charging. I want to revive a power supply. What is the polarity of the battery? Thank you. Update (10/25/2015) Hello. I’ve already found. I share a picture that lets you know the polarity. The picture is based the motherboard Thanks.
Sergio, post a good image of your battery connector with your question. Use this guide for that. It will allow to mark the contacts for you. The positive and negative connectors are the left and right outside connectors. The concern that I have with that, is why you have to do that. Obviously you are having some issues with your phone which you should consider repairing first.