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[Q] Is there an official Kitkat firmware with same battery life as Jelly Bean?

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By dvandyck, Junior Member on 19th June 2014, 12:43 PM
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Hi all,

I am new here so I hope this is the correct place for this question.

I ordered the Z1c and expect it to be delivered any moment, I already went to most threads regarding KitKat on the Z1c.

For me, battery life is the main reason why I choose this phone. It appears that updating the firmware of Z1c to the current KitKat version results in a big loss in battery life (and apparently also quite some bugs). Of course, I would like to update but I am in doubt if the advantages of going to Kitkat makes up for the loss in battery life.

In that respect, I have the following questions:
- How bigg is the loss in battery life if I update to the current version (757 in Begium I think)?
- Which official build number of Kitkat has the best battery life?
- What are the main advantages of updating to KitKat?

Thanks in advance

19th June 2014, 07:32 PM |#2  
zxz0O0's Avatar
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I'm on 757 firmware and I don't notice any big difference between KitKat and JellyBean battery life. I also didn't notice any bugs yet. However I am not constantly using my phone and usually get a bit more than 2 days of battery life.
19th June 2014, 08:06 PM |#3  
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I agree. There is a slight difference between 4.3 and 4.4, but it's not big. Most people won't even notice that. So I wouldn't worry about updating to 4.4.
20th June 2014, 09:19 AM |#4  
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Hi Zxz, Martan,

All questions evaporated with arrival of the phone: it came with KitKat 4.4.2 build 757 installed on it so keeping Jelly Bean is simply not an option.

Battery life seems very acceptable: I used about 25% toying with the phone, checking e-mail and downloading updates for some apps using WiFi yesterday evening. Over night, it lost only a few % in Stamina-mode including waking me up twice.

All in all, very happy with this phone. Runs very smooth and up to now, no bugs encountered. I expect to get several days out of it on a single charge and that was the aim from the start.

thanks for your replies

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