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Is your phone is always off? Fully charged or obviously did not take long for any electricity? You must be doubted that the phone is not the end of life? Do not worry, it's just temporary, "cardiac arrest", as long as a small eraser can revive it! With the eraser to the contacts (brass) clean on the battery after the battery out, then put it back on the phone, you will find your phone even "live" over it! Really useful. 2QPservice manual download site
Off two cases, one is started automatically after a power failure the phone, one must be manually switched on to work after a power failure. I think you are the latter, it is recommended to use a small battery contact points Daogua it, scrape the copper surface is very clear there is no dirt. If there are effects but there are still without power on, replace the battery right. If that effect is not it possible that the motherboard because Shuaiguo Weld caused. Recommendations to the maintenance department to repair.
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