Question about Sony Ericsson K850i Mobile Phone

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My mobile phone suddenly started to drain battery at an extremely fast rate (ca. 1h duration, instead of 8-10 days). Any hint on what could be wrong and how one could fix it? Thanks in advance!!!

1) The phone is > 6 years old 2) I got a new battery today, but same result, which means the problem comes from the phone. 3) The problem started right after I have been shooting a few pictures with flash on, though nothing I had not done before or unusual. 4) At the end of the charging phase, I get a message saying approximately " Serious failure - Stop using the phone and contact Sony Ericsson Customer centre". 5) The battery becomes really warm both during charging and while in use. This applies to both the olb battery and the new one I just installed.

Posted by Anonymous on


3 Related Answers


  • 308 Answers

SOURCE: phone not working

could be the charger / phone or software ... take it to a phone repair shop but my guess is battery needs replacing

Posted on May 20, 2010



  • 18 Answers

SOURCE: message: 'Serious error. stop charging immediately

here is the solution for this problem Serious error stop charging

Posted on Oct 18, 2010



  • 1 Answer

SOURCE: 'serious error. stop charging, stop using your phone and contact a sony ericsson contact center'

can tel me how i update software k550i

Posted on Mar 10, 2012

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