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Sony Ericsson k800i troubleshoot

I have a Sony Ericsson k800i handset wich i have been using since october last year. the fone was ok until recently when it stopped responding. ok, what happened was, i removed ma usual line and replaced it with a new one wich worked just fine. but when i returned my original line and switched the fone on, nothing happened except a blinking red colour at the infrared port region which has persisted. i have tried all the local technicians but they have all failed. dammmmnn guys, am so broke now and cant afford a new fone. please help me figure out what the prob.. is. i have the fone now b4 me in its dead state.. help...!!!!!

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  • cherrie_DJ Jul 07, 2008

    i have the same problem right now,a colleague of mine. borrowed my cellphone k800i and he used his own sim card from another network not the same as mine,it was working when he was using it, but when i put on my own sim card when he returned it to me, it didnt open and all i see now, is a blinking red light in the infrared area.pls help me fix my cellphone,thanks

  • maxinthehole Jan 10, 2009

    my phone run out of battery during the night and I tried to charge it next morning, turned on but the screen was white and the ir light blinked a few times... plz help

  • Anonymous Jan 31, 2009

    Thumbs down to K800i. Although i could load java applications but I can't run them... It says"Operation failed".

  • nish02 Apr 14, 2009

    when i restarted my phone then the screen just shows the Sony Ericsson logo. nothing else is happening. HELP PLZ!!!!!

    i tried restarting my phone at least 10 times.



6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

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Posted on Jan 02, 2017

  • 32 Answers

SOURCE: K800i Sony Ericsson Handset.

All of you need to hold down the power button and look at the Infa-Red port. Is it Flashing?

Yes: Flash the software on your phone.

Seek professional advise from your service provider.

Posted on Feb 02, 2008

  • 1 Answer

SOURCE: Cordless Handset fails to Link to main corded phone

Here it is, 2008, March and still no answer! LOL! I am having the same problem! It linked fine when I first got it, and now since I can't find the manual I can't get it to link again! Can anyone help? Please

Posted on Mar 08, 2008

  • 2 Answers


You need to de-register the broken handset then add (register) the new handset:

Posted on May 19, 2008

  • 167 Answers

SOURCE: k800i sony ericsson not switching on

your phone software program is damage or over DL'
the best way to do is bring to the nearest Cellphone repair shop' and re-program it' special gadget and software is needed...:D

Posted on May 27, 2008

  • 7752 Answers

SOURCE: k800i wont turn on

that is because you EROM file is corrupted so you need to download and reflash a new EROM file into the phone.

Posted on Jun 08, 2008

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Looking for drivers for sony ericsson k800i

Dear, if u wanna connect your fone with computer through usb data cable so you don't need to install drivers.when you connect your fone with computer via usb data cable then cancel every window appears regarding installing drivers and select FILES TRANSFER from your fone.After sometime fone removeable drives appear in MY COMPUTER.thanks

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Phone lock code

K800i Unlock
At Instant-Unlock we specialise in K800i unlock and in particular in K800i unlock codes which means you can unlock your phone with the minimum of fuss.
We concentrate on only the most popular handsets so that we can offer a great service for Sony Ericsson unlock.
Networks lock their phones to protect their revenues, they subsidise the handsets on their contracts and as such they want to maximise the return they get from the contract you take out with them. In an ideal world the network would give you your K800i unlock code on completion of your contract but quite often they make you pay to get your Sony Ericsson phone unlocked.
How to unlock K800i phones
The process for unlocking your Sony Ericsson phone could not be simpler. Simply add the K800i unlock to your shopping cart an on the next screen you will be asked for your imei number and phone model. Once we have this information we can generate your K800i unlock code for you. We also provide Sony Ericsson unlocking instructions on our website so that once you have your K800i unlock code you can instantly enter it into your phone
K800i unlocked
Once you have used our Sony Ericsson unlock service you will then be able to use your phone on any network. Please leave us some feedback on our service so that future K800i unlock customers know what to expect. If you have any questions before order please contact us, we will be happy to help with your K800i unlock enquiries.
Enjoy using your Sony Ericsson unlocked phone.

Jan 09, 2010 | Sony Ericsson K800i Cellular Phone

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hi there,

Please try these steps.

1. Remove the SIM card. Turn your handset ON
2. PRESS the left arrow ONE TIME
3. PRESS the * button TWO TIMES
4. PRESS the left arrow ONE TIME
5. The message "Personalize with MNC2" will appear
6. You may now enter the Unlocking Code we have sent to you. It may be necessary to PRESS ENTER or OK


Nov 20, 2009 | Sony Ericsson K800i Cellular Phone

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it will require unlocking tools to reset back to default

Sep 12, 2008 | Sony Ericsson K800i Cellular Phone

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The K800i does not use micro SD memory chips, it uses memory stick M2

Dec 29, 2007 | Sony Ericsson K800i Cellular Phone

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While receiving a call press < or > on the side of the phone this will turn the earpiece volume UP or DOWN a visual bar will appear on the screen. Do this during a call.

Dec 28, 2007 | Sony Ericsson K800i Cellular Phone

1 Answer

K800i Sony Ericsson Handset.

All of you need to hold down the power button and look at the Infa-Red port. Is it Flashing?

Yes: Flash the software on your phone.

Seek professional advise from your service provider.

Nov 18, 2007 | Sony Ericsson K800i Cellular Phone

2 Answers


see budy what u can do is put wrong password 5-6 times after that it will ask for a PUK code u can try to get it from ur service provider after applyingnit in ur handset, it will b asking for a new password to be set.

Sep 23, 2007 | Sony Ericsson K800i Cellular Phone

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Sony erricsson k 800i

if ur machanic just change display(screen)of ur handset or show ur handset to perfect machnic he will solve ur problem

Sep 19, 2007 | Sony Ericsson K800i Cellular Phone

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