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I have the DC Power Supply DPS-305BM (http://www.amazon.com/DPS-305BM-Digital-Control-Laboratory-Adjustable/dp/B00ON8VPFY) . I set the voltage to 5V (less than that, the smartphone does not turn on).Thank you for your answer.
Hi, thank you so much for your post. I tried it in a Samsung J7 but unfortunately it did not work =/. Actually I just need to turn on the smartphone in a external power supply. However when I try it, the smartphone shows a message about low battery and then it turn off. Can you help me?
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