topic Xperia Z keeps restarting when charging; cannot charge nor switch on in Z Series

Xperia Z keeps restarting when charging; cannot charge nor switch on

merv — Thu, 23 Jan 2014 16:09:30 GMT

Hi there,

My Xperia Z decided to die on me all of a sudden.

As described in the subject title, my Xperia Z can't be turned on normally, while when I connect it to power or a computer it simply switches on, flash the SONY title for awhile then goes back off again. All this while the red LED would be on and off in tandem with the SONY screen.

Also, prior to this malfunction, I realised that the battery levels were fluctuating a lot: it could be 50% one moment then 30% the next, and then go to 60%, something like that. Then it just died in the way described.

I've tried many things, like different permutations of holding the power and volume buttons for different periods of time, removing the SIM card, getting 1 and 3 vibrations, but there would still be no difference. I can't do anything on the PC companion because the computer cannot detect the phone at all.

Hope that I can get some help ASAP, thanks a lot.

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

Alexander1 — Thu, 23 Jan 2014 16:22:38 GMT

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

First of all I suggest that you press and hold the power button and volume up until you get three vibrations. Connect your phone to the charger and leave it there for at least 3 hours.

Then try to repair/reinstall the phone software using Update Service:

http://www.sonymobile.com/global-en/tools/update-service/

If you still can't get the phone to start correctly I suggest that you have your phone examined at a service center. Please contact your local Xperia support team for more information:

http://www.sonymobile.com/global-en/support/contact-us/

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

merv — Fri, 24 Jan 2014 00:25:51 GMT

I couldn't get the power button + volume up to work without connecting it to power, so I did it while it was connected to the power source.

When I leave it charging for 3 hours, does it matter if the phone keeps restarting as described earlier?

Thanks much.

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

_alexdon_ — Fri, 24 Jan 2014 07:52:59 GMT

It is important for it to charge at least over 60%,after that download sony update service,turn off the phone and connect with vol down pressed when notified.

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

merv — Fri, 24 Jan 2014 08:35:17 GMT

Hi guys, I haven't been able to salvage my phone with the self-help methods, and I've sent my phone to the service center. Thanks for the help though.

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

_alexdon_ — Fri, 24 Jan 2014 09:02:35 GMT

It is for the best,keep us updated.

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

hediyeh — Sun, 27 Jul 2014 22:41:21 GMT

Hi,

I have exactly the same problem.

Really interested to know what happened after you sent them the phone?

I'm out of guarantee and I really like to keep my datas (as I didn't save anything for the two last months)...

Thanks to answer and let us know the fate of your Xperia

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

merv — Mon, 28 Jul 2014 02:34:19 GMT

Hi all, for those interested in the fate of my phone, the service centre totally replaced the motherboard of the phone. I was lucky as my phone was still under warranty. The phone worked fine after the replacement, though I lost all my contacts and internally stored data. Guess there is no other solution though.

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

scarheed — Mon, 28 Jul 2014 19:27:47 GMT

Very pleased to see this post. I had the exactly same problems, and I mean exactly. phone still under 2 year warranty, so I sent it to service centre. Got a response back in a couple of days saying that there was a " hardware " problem and I would have to pay £137 to have it fixed as it was not covered by warranty somehow. I don't know why. The only way it would not be covered is if there were physical damage. Trust me there isn't. Thanks to you I know that it is the motherboard and there is absolutely no way I could physically damage that. Thank you. Just out of curiosity. Where you running on 4.4.2 at the time of the malfunction?

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

merv — Wed, 30 Jul 2014 04:05:22 GMT

Hi there, I apologise as I cannot remember the android version of the phone when the problem arose. It has been quite some time already. But I do think your best bet is to send it to service centre and categorically refuse to pay anything when the warranty is still subsisting.

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

jatinder1 — Tue, 28 Apr 2015 03:01:24 GMT

Hi, Dear friend, My Xperia z ultra restart again and again when my phone battery charge more then 50 %. It is normally use when battery discharge and remain 50 %. It's battery also discharged in normal Way. I m apply all the trouble shooting method like as by holding power and volume up button etc. I'm also update my Xperia z ultra with 🍭 lollipop version but problem remain still. Please help me. I shall be very thanks for your help please.......

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

merv — Tue, 28 Apr 2015 05:03:56 GMT

Hello there,

I would recommend you sending your phone to the nearest Xperia service centre. When my phone went haywire, none of the self-help methods actually worked for me. I only salvaged my phone after sending it for service. I'm sorry i cannot help in any other way. All the best!

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

8zhhilgigig — Thu, 15 Oct 2015 21:29:54 GMT

Get a charger for Apple iPad, which charges with 2.2A. This way you should reach the 1% fast enough and prevent restarting. It worked for me!

Re: Xperia Z keeps restarting when charging; cannot charge nor switch on

Marcel85 — Fri, 07 Dec 2018 15:10:05 GMT

Thanks for this thread. I'll try to contribute my five cents to this post.

My Z5 compact decided to get the same symptoms as TS (and many many others....) have been experiencing.

This happened in june last year. What happend is that it stopped taking the charge from my charger on a hot summer day on the beach. I remember the device turning unusually hot, running empty quickly, not taking charge, resulting in the continuous reboot loop after trying to charge and start the device.

I tried many forms of resets but ended up with an apearingly bricked phone.

Until I picked it up from the shelve and decided to give it a charge recently. I got it up to 12% and got it to boot without any issues. But while it was on, it didn't take any charge anymore. (Hearing the charging/disconnecting sound played every other second or so)

The power connector has been replaced in june as I assumed the issue was dirt or a damaged connector (due to wreckless cleaning with a needle) so this shouldn't be the issue

I'm wondering if some parts are fried or if the battery might have gotten weak, either by an unknown event or short-circuiting while cleaning

It's interesting to read the iPad charger tip. I was told specifically to charge with the sony original charger.

Charging with the iPad charger would make sense in case of a poor battery as charging with high power usually revives the baterry to some extend.

After the battery ended up on 8% charge, it ended up in the reboot-loop after I (stupidly) powered down the device.

So now I'm back at square one. I'm starting to wonder if in my case the battery is the issue? What would others assume? I was on the latest software.

I'm also wondering if there are any ways to bypass the battery, connecting the phone to an extenal power source. I'm willing to open up the phone and scrap it as I'm really keen to restore months of lost family images. So dear Sony, please don't answer with suggesting to send it into service as I care more about restoring the images than keeping the (rather dissapointing) phone alive.

What can I do to make the my device run again? I've recently witnessed that the sofware runs as it should. All I want to do is send over my photos to google photos and move on with my new phone.

Best regards, Marcel