Question about Sony Ericsson K790i Cellular Phone

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Mobile phone not working

My SonyEricsson cell phone k790i(cybershot) accidently soaked in water.Imade it complete dry and it started working next day.But only after six hours it stopped working and giving a red signal at right bottom lateral side and battery has also got inflated.Please solve my problem.

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  • rishabhkumar Aug 17, 2008

    HI I ALSO HAVING A SAME PROBLEM PLZ SEND ME LINE DIAGRAM OF K790 I OR GIVE A SUITABLE SUGGESTION

  • mldeoasso May 11, 2010

    kkmc'cjcmcmc

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  • 24 Answers

Change the battery dude!!!!!!!!!!!!

Posted on Sep 26, 2009

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My sonyericsson mobile k790i screen is becoming white


You have a problem with the connection from the screen to the mobile motherboard ! You can change it but i sugest you to change the cell because i think it's expensive to change it !

Mar 24, 2011 | Sony Ericsson K790i Cellular Phone

Tip

Dropped the cell phone or mobile in water


Dropped the cell phone in water
If you would have accidently dropped your cell phone in water or it fell in water you can try fixing it be these below tips
1. Remove the battery of the mobile and try drying it with a hair dryer
2. Put the cell phone in a raw rice container for a day, the rice will soak the moisture and the mobile will become dry from inside
3. After that put the battery back on and try switching, there are more chances now that it will work
4. Never try to instantly switch on the cell phone after taking it out from water you should follow the above steps, switching it on instantly can lead to short circuit in mobile and the cell software can get damaged
5. You can also put the phone in light sunlight (not in very hot direct sunlight) after removing the battery do not put the battery in sunlight though
6. Also make sure you keep the SIM card out of the mobile

By taking these steps you can make a fair attempt to save your mobile from dying.

Regards
Vikram

on Dec 02, 2009 | Cell Phones

1 Answer

Mobile in water not working now


Remove The Phone From The Water

The first step is to remove the phone from the water as soon as possible. The less time the phone spends submerged, the greater chance it has of being saved. The plastic covers that come with cell phones do provide some protection, but it takes a mere twenty seconds or less for water to get through these barriers and start causing damage to your phone.

Once you pull the phone from the water, remove the battery immediately. Cutting power is a crucial step when attempting to save a wet cell phone. There are many circuits inside cell phones that can survive getting wet, but only if they are not attached to a power source.

If your cell phone comes with a SIM card, remove it promptly. Do not heat the card, simply pat it dry with a soft towel, and put it aside until the rest of your phone is dry and back to working order. The good news is that SIM cards recover well from water damage. If for some reason, your phone doesn't survive the accident but the SIM card does, there are plenty of places that sell unlocked cell phones. Simply place your SIM chip into the new phone and go.

Salt Water Accident

Please take note; if your phone was submerged in salt water, you must rinse it in fresh water before the drying process begins. Even after the phone is dry, crystals can form and continue to cause damage and erosion.
Let Your Phone Dry

The next step you must take to save a wet cell phone is to allow the phone to dry. A great method in providing an optimum drying environment is to set the phone on the vent found on the back of a television set or cable box. The low heat emitted will gently dry your cell phone. Another trick to help speed drying is to place the phone in a bowl of dry rice. This will help draw out the moisture. You can also try placing the phone in a plastic baggie with a few silica packs that come in purchases such as shoes and electronics. Silica, like rice, absorbs moisture.

The important part of the drying process is to place the phone uncovered, in a warm, dry place and allow the moisture to evaporate completely. Another alternative is to place the phone on an air conditioner. The cold air will not damage the phone and the air from an air conditioner is very dry allowing the water to evaporate quickly.

Drying should take approximately three days at which time you can check to make sure the phone is clean and dry. It is at this time that you can re attach the battery and check if the phone works. If it doesn't, wait a few more days and try again. If the phone still doesn't work, take it to your local dealer, they may be able to repair it. Be prepared; getting a cell phone wet will void your warranty and most cell phones are equipped with a water damage indicator so the dealer will know the phone has been H2O compromised.

Alternative Drying Methods

There is an alternative way to save a wet cell phone that includes an alcohol soak. Alcohol is hygroscopic which means that it attracts water. Soaking your phone in denatured alcohol, or a 95% alcohol solution (regular rubbing alcohol is about 75%), soaks up all the water in the phone. When the liquid is dumped out, only alcohol, which will evaporate, remains. Make sure that the alcohol you use is denatured with only methanol as the chemicals found in other types can be damaging. This kind of alcohol can be purchased at your local hardware store. The alcohol soak may work best for phones that have been damaged by salt water or other liquids such as coffee.

Battery Caution

When attempting to save a wet cell phone, make sure you do not heat the battery as it could leak or even explode. Lithium-ion batteries are especially sensitive. In addition, many cell phones have plastic parts that can melt. Above all, do not try to save a wet cell phone by placing it in a microwave. You will destroy the electronic components and possibly the microwave in the process.

The above steps will help to save a wet cell phone, but be prepared. Often the phone will survive but the battery will not and the purchase of a new one may be in order. Good Luck!

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1 Answer

Wet Phone with Download screen


it may sound funny but put the phone, battery and nething else that got in a bag of dry rice. it will soak up any water left in the phone. that may fix your problem.

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How to update software for k790i


www.sonyericsson.com/.../faultyphoneasoftwareupdatemaysolveit/k790i?...

f your phone freezes, hangs up unexpectedly, vibrates continuously or in other similar ways doesn't perform as it should, this can often be solved by performing a software update. Software may perform incorrectly for many reasons without there being a fault in the phone. Some problems may be fixed by re-updating your current software, while others may require installing a new software version. You can update software quickly and easily with the Update Service; the application checks for new software for your phone and automatically installs it.
To keep your phone performing at its best, it's a good idea to perform a software update regularly. You might not always notice what an update has done, but it can prevent future problems.

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Sonyericsson k790i usb drive for windows vista


here r a good article about download driver /software u can go and find free sony driver download

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I had same problem with my SE K790i. I syncranozed my contacts to laptop-windows contacts in vista and then deleted all contacts in mobile. Later I syncranized again so that all contacts came back to mobile. Thus the problem is solved with my mobile. Try to do the same. Good luck.

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