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Repair and disassembly guides for the Alcatel A50 budget smartphone. The Alcatel A50 was released in July 2017 and includes a 5.2-inch display.

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My phone got into the laundry. Now it says low battery temperature

Hi there,

So one day I found one of my old phones in the laundry with my load after it was done. It wasn’t visibly damaged on the outside but it complains about “low battery temperature” whenever I try to charge it. If I have to go into the guts of the phone I will gladly do so.

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@lue64 for now you definitely want to stop continuing to try to charge, sync or otherwise use your phone. This potentially can make a bad situation worse.This may further damage your phone.

“low battery temperature”  usually comes from the battery.

The next thing to do is to clean it. The very first step I would take is to disassemble your Alcatel. Here is where it gets interesting. Since this is a bit of an off-brand phone, there is not much information about how to do it. I suspect you will have to proceed like a Samsung phone and start from the back. WE would definitely have to see more of your phone to determine that. Once it is disassemble to the motherboard, take a careful and close look at all components and connectors. Truly assess the damage. Look for major corrosion, evaluate the pins in the connectors etc,. Take a look at all connectors as well as cable ends. You will have to remove all the EMI shields. If you do not remove the shields, you are not cleaning the board. Once you got the gross contamination cleaned, use 90%+ isopropyl alcohol and clean your parts some more. For a proper cleaning, use this guide. It was written for an Apple iPhone 3G but it is still pertinent to your phone as well. I can not stress the importance of a good cleaning enough, so do it over and over while replacing the alcohol after each cleaning. Do not use compressed air for the cleaning since that can drive liquid as well as corrosion particles into areas that will cause trouble later on. Do not use drinking water, if you need to use water, use sterile water. Also, you do not need to leave it to dry for a day. Isopropyl alcohol in the higher concentration will evaporate quickly and dissipate the water. The importance here is the cleaning. It would of course be best to get it professionally cleaned with an ultrasonic cleaner. Do not forget to replace the battery. This is a must and not an option. It will fail if you do not take care of it now. After that, reassemble your phone and re-evaluate.

This is so we can see what your phone etc. looks like once you start the disassembly. 在已经存在的问题里加入图片

iPhone图片

指南

修复iPhone 的进水故障

难度:

困难

1 - 2 hours

iFixit图片

指南

在已经存在的问题里加入图片

难度:

非常容易

2 - 5 minutes

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