Question about Sony Ericsson K800i Cellular Phone

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K800i hi i wnt to my k800i this morning,turned it on and the back light has stopped working...i have upgraded the software srom the se website but its still the same any ideas please

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  • thecrow
    thecrow Feb 08, 2008

    i have noticed when the phone is turned on that the keypad flash's once or twice????? please help

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  • 7,752 Answers

You need to reflash the EROM on the phone and this should correct your problem.

Posted on Jun 08, 2008

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1 Answer

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Hi Rahul,

Even this problem was with my K800i i thaught it is a problem with the battery but it is a software problem due to which your mobile get switched off and switch on. I will suggest you to update the latest software of your phone by giving the phone at service center and it will resovle your issue.

If any thing else do let me know.

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Hi my sony ericsson k800i stopped working . when i try to power it on. the infra red light flashes three times and nothing else happens can you help?


The first thing to do is try a different, fully charged, battery - one of things that can cause that flashing LED is if the battery is really flat. If you don't have access to a spare battery, then try plugging in the charger and see if that LED comes on solid - then leave it for an hour or so.

If that doesn't work, the next thing to do is download the Sony Ericsson Update Service client from the SE website and try and do a firmware upgrade - if it says you already have the latest firmware, just select "Update anyway" - this will delete all the content in the phone (but not the memory card), however.

If you can't get SEUS to connect when you plug in the phone holding the "C" key, then try plugging in while holding down "2" and "5" and see if that works.

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1 Answer

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Please note doing this will delete anything saved on the phone, if you can try using the Mass Storage mode to backup items like images... also if the phone was flash patch unlocked then it will need to be unlocked again

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Hi hava nice day!
First make sure the phone is charged.
At the link below follow troublshooting wizard.
http://www.sonyericsson.com/cws/support/products/troubleshooter/k800i

Mar 18, 2008 | Sony Ericsson K800i Cellular Phone

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This usually means that you are trying to upgrade the wrong version of software. If you upgrade the the CID and relevent software for it at the same time this should cure that problem.

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1 Answer

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I have had this problem for a few weeks and finally sent it back for reflashing as that seems to be the only solution. I got it back and it still does it but it has been reflashed since it has the latest revision (which it didn't have before)... It has to go back :(

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