sudden shut down battery problem, factory reset and SW update/repair did NOT help

[Mixta]

Hello everyone, i have a "sudden shut down problem" with my Xperia Z1 C6903 too.

Sudden Shutdown always happens at about 70% for the first time, after been fully charged. I cant turn it on right afterwards but if i wait 1 min. it works. However sooner or later the phone, somewhere between the remaining battery, will repeatedly shut down again. I couldnt find out what triggers it and android battery test show that the battery is ok.

I am not an expert with these devices, but i hope it is a software or calibration problem?

There is a similar threat which points to the solution of using Sony PC Companion Software repair, i tryed it twice and it did NOT help!

edit:

I havent changed the device after PC Companion repair step, thus no other Apps are running and no energy managment has been configured (stamina mode)

edit 2:

hidden battery info * # * # 4 6 3 6 # * # * shows:

...

battery health: good

battery voltage: 3969 mV

battery temperature: 36.6° C

...

is there a way which gives me more details than just "good"? And what does that even mean?

[rayw]

I have been suffering the same problem - battery seen to be 50, 60 or 70%, then suddenly warning sounds for low battery, showing less than 10%!

Reading around the web, it appears to be a common fault with Android - 

ts not just Sony phones.!

However, in an attempt to fix this, I am now in process of Restoring after a Software Repair - and it seems this may not work!

Does anyone else know of other makes of phone suffering this? 

[팡니]

hi

i am got this problem also.

do you already fixed your mobile phone?

[Dragonh]

Hi fellow, 

My phone z1 ultra has a same symptoms .. Any one resolved this subject matter issues /or answer... 

[Dragonh]

Hi fellow, 

My phone z1 ultra has a same symptoms .. Any one resolved this subject matter issues /or answer... 

[JOHN209]

Can someone please tell me how to fix my $600 phone with a $200 insurance plan. Im frustrated, the third day after purchasing this phone, it started to  mute me when talking on the phone Or hangs up, It's not, my area or signal it happens everywhere.

I cannot talk on this phone. Love the phones camera quality. I did a factory reset that worked for about a week and then started happening again

Frustrated in California