Yaciin, 08 Aug 2016Yeah thats true ..Please tell me how I can download jelly bean ..?
There are two ways of downgrading the software.
This is simple way but impossible one depending on the user. This method requires you having backup copy of the image which was created when your phone had Jelly Bean or Kitkat on it. Most probably you would have Lollipop pre-installed or upgraded without creating a complete backup image.(In my case I backed up the entire software image before upgrading to Lollipop and switched back to Jelly Bean using it).
You can downgrade to Jelly Bean or Kitkat using firmware copies from external sources. You will be needing flashtool and firmware you require to install. The procedure of doing it is easy. But finding the firmware required is difficult. The flash tool can be found in XDA develpoers site as well as firmware. But links provided by them are mostly not working when I tested. But try finding firmware from other sources. The flashtool can be found in XDA developers site.
All the best :)
John milton , 05 Aug 2016I have used this phone since 2014. no single problem found it. my phone performance day by day... moreplease tell me i think that may batrie drain fast in lollipop...and i cant back to jelly bean ?
Panda, 07 Aug 2016Very poor built quality, the phone keeps overheating and automatically dims the sreen that mak... moreI think you did not try different settings the phone has to offer. Because it is the best quality you can get.
The Z series of XPERIA is known to be water and dust proof. To make the phone water and dust proof it is made air tight which prevents air flow through it. This causes it to over heat. Even if it get over heated it will never lag or get switched off due to that reason.
The auto brightness setting is the reason for that. If you want full brightness all the time set brightness to max and remove auto brightness. This should solve the problem.
There could be problem with headphones. If headphones work better with other gadgets then check the app. SONY Walkman app which is now called Music is one of the best audio apps in play store. This is basic and most probably you have noticed and crossed it, that the device does not allow you to play at full volume as it restricts it to half to make sure that our ears are not damaged on long run. You can easily bypass that restriction. If still you are getting low volume try using equalizer.
I hope that your problem will be solved to some extent. :)
Panda, 07 Aug 2016Very poor built quality, the phone keeps overheating and automatically dims the sreen that mak... moreSomething is wrong with your device,mine is more than 2 years old,stil works great without single issue and the sound is good.
Very poor built quality, the phone keeps overheating and automatically dims the sreen that makes it hard to see whats going on. Headphone volume is very quiet even at loud music tracks. Comparing to my old Iphone 4 or HTC ONE M8 the XperiaZ1 sounds like it has no headphone amplifier what so ever! This was a lesson for me, i bought this phone before reading related problems online. Wasted a lot of money and now the only purpose of the phone is to use it as a camera. BTW the camera is the only thing that is proper in the phone but thats not what makes a phone, phone!
I have used this phone since 2014. no single problem found it. my phone performance day by day increasing. Lollipop 5.1 is the best android upgrade for phone. camera still superb better than iPhone 6, Samsung s4,s5.
I am fully satisfied this phone.
Sony's hardware better than iPhone, Samsung.
Sony is the best.
AnonD-446075, 04 Aug 2016For people who are having problem with battery: If you guys are having trouble with battery... morethat's not actually true, marshmallow can run with the same requirements of lollipop just look at the Samsung J5 , lower chip lower ram and still got the update and its running fine not smooth but fine with 1.5gb of ram and touchwiz , I think sony is the one that doesn't want to update just because... marshmallow would it be good for this phone to fix the mess that lollipop did
For people who are having problem with battery:
If you guys are having trouble with battery and are using Z1 which has Lollipop in it the only thing you can do is to downgrade the software to Kitkat or even better Jelly Bean. Lollipop on XPERIA Z1 has some major issues like draining of battery and even lagging of phone.
If you are having Jelly Bean or Kitkat as your UI then try using stamina mode which will show a lot of improvement on the battery life. XPERIA STAMINA MODE is one the best software I have seen to extend the battery usage. It nearly cuts down the power usage when on for all the apps except receive calls and messages. If you lock your phone with Stamina Mode on and return in a day to check it out you will find less than 3-5% battery is drained.
Lollipop upgrade is not good:
I have seen a lot o people want to upgrade their XPERIA Z1 UI to Lollipop which is not good. It will cause a lot of trouble like fast battery drain and the phone starts to lag. For small amount of extra features and very few apps which require Lollipop to run I would not upgrade my phone to loose the smooth running.
Nearly all the apps and games I have come through support Jelly Bean or at-least Kitkat then why do you need Lollipop.
There will not be a Marshmallow upgrade for XPERIA Z1 as it is hardly able to satisfy needs of Lollipop and is causing problems it will get worse with Marshmallow upgrade.
AnonD-566397, 30 Jul 2016please help me ..how i can test my batrie im xperia z1 if its good because i think its not i l... moreif your phone is upgrade to lollipop 5.1 that who made that problem your battery is fine do not changed until you degrade your android system
AnonD-566397, 30 Jul 2016please help me ..how i can test my batrie im xperia z1 if its good because i think its not i l... moreMy phone is too hot, sometimes the phone is high cool. I don't know.. and the phone is not hang in any situation. But my battery is 100% when 2 hours it go to 45 % then down.. 14 percentage in 3hours.
AnonD-562903, 21 Jul 2016Pros: long battery life, quality camera (with additional apps), quality sound (with additional... moreplease help me ..how i can test my batrie im xperia z1 if its good because i think its not i lose 10/100 in 30 minutes useing wefi concet and facebook-messenger and some apk ..is that normal ??
Fihl, 26 Jul 2016What is antutu benchmark? Its an app which helps u to check the performance of your smart phond
leved, 19 Jul 2016how can you know if your z1 is an original device? is it true that some of it is manufactured ... moreIt is not necessary to be fake if it is manufactured in China, most companies around builds their factories in China, or either you can say that most devices and other products are manufactured in China even American products, you can use antutu benchmark to verify your phone if it is fake or not.