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The Samsung Galaxy S5 NEO (SM-G903F) has a 5.1 inch Super AMOLED display with Full HD resolution. It's front and back cameras clock in at 5 megapixels and 16 megapixels respectively. Inside, the phone is powered by the 64-bit Samsung Exynos 7580 processor, 16 GB of internal memory, 2GB of RAM, and a 2,800 mAh battery. The phone, measuring 142 x 72.5 x 8.1 mm weighs 145 grams. Compared to the original S5, the Galaxy S5 Neo has better features such as the front camera, FM radio and faster LTE (Cat6).

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Phone super slow and overheating after dropped in salt water!

I was on vacation and i didn't exactly drop it in water i just had it in my back pocket when i got my pockets wet. It turned on because i got a snapchat notification and i reacted soon took of the battery and put it in rice. I had it in rice for 24 hours and when i tried to power it up again it did, but the display didn't work. I left it like that for 2 more days (Until i got back from vacation). At home i still didn't turn on. I send it on repair, but they didn't accept my garantion because they said that i had dropped it on the floor before. When i got it back it did turn on, but now it is seriously overheating and it is super slow. Please help me, i don't have the money for a new phone and i really need this.

I also did a factory reset. I am trying to use it but it is super laggy and overheated, making it unusable.

Any suggestions?

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you should open it disconnect battery inspect the motherboard stefan, but can be also the battery


I am not really a professional, should i take it to a custom professional?

I am was surfing around the net and everywhere said that there is a problem with the motherboard but it is preferable that i buy a new phone.


you should try if you have this kind of economic shop or follow "almost" the s5 guide but is not the same

Samsung Galaxy S5 Motherboard Replacement


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@f0rmkd "i reacted soon took of the battery and put it in rice. I had it in rice for 24 hours and when i tried to power it up again it did," This is a myth that really has to disappear. First off skip the rice. It is absolutely useless. It will not help you fix your phone. All it does it provides a false sense of security. It will not clean your phone, it will not prevent corrosion.

Second, stop continuing to try to charge, sync or otherwise use your phone. This potentially can make a bad situation worse.

Salt Water will get your components to corrode very severely. The very first step I would take is to disassemble your phone. Use this guide to remove the board. Even so it is not your exact model, it should get you there. Once you have to board removed, 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. After that I would suggest that you clean it a couple of times in sterile water, not drinking water (that might have helped right after it got submerged in the salt water). Use a soft brush and clean it very, very thouroughly with the sterile water. With the amount of corrosion that I envision, you will have to remove all the EMI shields. 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. If you can get it professionally cleaned, than do so. this is not an easy task and you may need to consider professional help. Check with users like @refectio who have specialized in that type of repair, see what he thinks. 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. Keep in mind that water damage is the hardest to troubleshoot and to repair. Hope this helps, good luck.

iPhone Görseli


Repairing iPhone Liquid Damage



1 - 2 hours

Samsung Galaxy S5 Motherboard Görseli


Samsung Galaxy S5 Motherboard Replacement



30 minutes - 1 hour

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