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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone, iPad, iPod Hardware Repair

iPhone, iPad, iPod Hardware Repair Hardware Repair discussions for iPhone, iPod , iPad & Apple Products, help, guides.

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Old 05-31-2013, 01:19   #1 (permalink)
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Iphone 4s shows battery low even when fully charged

Hi. Ive got some problem with my iphone. It keep showing that the battery is low. I checked battery voltage and it is fully charged. It comes on sometimes when plugged to the charger. I suspect the power management chip is gone but before I do anything I want ask if any of yous had that problem before?
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Old 06-09-2013, 23:57   #2 (permalink)
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[SOLVED] Iphone 4s shows battery low even when fully charged

Hi. I managed to fix the problem. It was not the PMU like I thought before. It was one of the faulty capacitors surrounding baseband chip. It was causing short so there was not enough current going through the logic board to the PMU and phone was thinking that the battery is low.
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