Problem: Z2 död efter natt på laddning

Hej gurus! Min Z2a överraskade mig imorse med att vara helt död. Har hänt förrut att laddaren glappat till under natten så tänkte bara sätta den på laddning som vanligt men den reagerar inte. Försöker starta men den reagerar inte alls, i vanliga fall får man iallafall indikation på att batteriet är slut men inte nu. Försöker starta om med power + volup men ingen respons. Trycker in den röda knappen vid simkortet och provar att starta igen. Ingen reaktion. Testade att ladda igen, den tänder upp och visar att den laddar men lika snabbt dör den igen. Har googlat runt lite och det verkar inte vara helt ovanligt, men de flesta löser problemen med hard reset vilket inte verkar funka för mig. Just nu ligger den på laddning, röda lampan lyser (svagt) men längre än så verkar den inte komma. Har ni någon liten grej man kan testa? Just nu känner jag mest för att slänga skiten ut för ett stup, eller köra den i en kvistmal...

 

Hej jag tar detta på engelska eftersom det blir lättare så

Have you tried if you can connect to fastbootmode or flash mode? You try that by holding down volume up or down while connecting your Xperia to the computer using the USB. If blue led shows up it is working for you. Try that and tell me if you can or cannot

 

Im on a mac, does that do any difference? Do I need any special software?
Holding up or down does not change anything, no blue led and no sign of life

 

Found an old magnetic charger, It seems to charge atleast. I will give it some time and hope It is that simple that the stupid usb-port finally died...

 

@onnefarbrorn I think so yes, that the usb port has been dead for some reason. Where did you purchased your xperia from?

 

Bought it from a local 3-store (a carrier in sweden)

Left the phone to charge and then tested to power + volup with success, three quick vibrates and then boot. Fully booted though it restarted again and now im back to square one with no response even on magnetic charger

 

Your pc/mac should recognize your device atleast. Try again to click on the red reset button near sim tray, after that plug phone to pc/mac and if led is red it is charging. Let it charge for a while. When thats done unplug device, hold volume up and connect device back to pc/mac.

 

its charging now, bright red led. No reaction to power or power + volup though. I dont get it actually :/

 

disconnected it from the charger, still at red even though it easily should have been at 40-50% at this time even with a slow charger and mine is 2A. How ever starting it now just gives a blinking led (new for me) and from googling it sound like battery is flat out drained. Im now trying the magnetic charger again but my hope is low. Starting to think the battery is some how broken... I would be very surprised if it start to work again. Probably won't try another sony in the future

 

No power, just unplug the device and let it be turned off and hold vol up while connecting it at same time.

 

to the charger or to the mac?

 

Let the phone be turned off and try vol up while connecting usb.so..

Turned off phone
Unplugged from your mac
Hold down volume up the same time you plug the cable back in

 

actually got a blue led now. now what?
Thanks a lot btw for helping me out!

 

now it went back to red light, I guess because I didn't do anything?

 

This means the device is atleast going to fastboot and flash mode! Which is good thing. What you can try is flashing stock firmware with wipe all data. So it will be like factory reset. You can find a thread started by me and then you look after the word "Flashtool" it is very detailed, if you have any question about it contact with me and i will lead you the right way

 

Har du provat med en annan nätkontakt?

 

Efter en hel natt på magnetkontakten hade batteriet kommit upp i 12 procent. Några minuter från laddaren gick den ner till 7. Satte den på laddning igen med samma laddare och samma vanliga usb-kabel jag använt hela tiden och plötsligt tar den ström igen. Gick upp till 87 innan jag var tvungen att sticka iväg men nu har jag (peppar peppar) en telefon som funkar igen. Har fortfarande ingen aning om varför den gjorde som den gjorde men faktum är att den verkar hålla laddning bättre nu än någonsin tidigare.

Tack till er alla som hjälpt till (and an extra thanks to Honda for all your effort)
Nu får min Z2 vara med en stund till.

 

Happy to hear that, because it was so messed up i recommend doing one battery calibration cycle. What that does mean is you charge to 100% and let the device die normally and then back to 100% charge. Normally I do that once a month. But if everything is acting good you do not have to do that. Good luck!