Sony Xperia Z1 users are furious now for so many firmware related bug issues. Recently we spotted issues like yellow hue tint, noise appearing in images captured from Z1’s cam, SOD, random reboot and pinch to zoom issue. Mainly are firmware related. Presently Xperia Z1 is on 14.1.G.1.534 firmware. 14.1.G.1.526 and 14.1.G.1.531 firmware are the previous builds.
[ Update 15 Oct 2013 ]
A few days back we saw an internal leak of about phone screenshot from 14.1.G.2.213 firmware but just now we are informed that there is a strong chances of 14.1.G.2.257 firmware to hit Sony Xperia Z1 soon.
14.1.G.2.257 firmware keeps it on Android 4.2.2 and is still in testing but is soon expected to roll out. Though we can’t say it will 100% roll out but as it has been spotted on running on one of our tipster handset ( Xperia Z1 ) who once confirmed that 10.3.1.A.2.67 firmware for Xperia Z1 is about to come and 20 days later it rolled out officially.
So we take the info of Xperia Z1 14.1.G.2.257 firmware update as credible and is likely to be rolling out soon by the end of this week or probably by next week.
Tipster who leaked the alleged screenshot of 14.1.G.2.213 firmware stated that it will bring performance and power optimization tweaks to Xperia Z1, same is expected with this higher 14.1.G.2.257 firmware build.
No proper ETA is there on 14.1.G.2.257 firmware update for Xperia Z1, but it is expected to come out soon. If you got this 14.1.G.2.257 firmware update on your Xperia Z1, let us know.
What issues you are facing on 14.1.G.1.534 firmware for Xperia Z1, let us know in detail. Drop your comments below.
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Xperia Z1 14.1.G.2.257 firmware major update rolled out – Improves Camera, Display and Power Consumption.
Xperia Z1 14.1.G.2.213 firmware update Coming Soon
Xperia Z1 Android 4.2.2 14.1.G.1.534 firmware Update Rolled Out
Xperia Z1 Android 4.2.2 14.1.G.1.531 Firmware Update Rolled Out
Download Xperia Z1 C6902 / L39h 14.1.G.1.526 firmware – Install ftf 
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I have so many issues
I’ll list it down
1.overheating – it easily heats up to 47 degrees when u browse for 15 min over mobile data and upto 50 degrees when gaming for 15 min this is really annoying
2.battery drain – probably because of overheating but it drain fast.. Some times it feels like we are using Z and some times it shows battery is not charging
3.noise in photos – photos captured have lot of noise even in normal light and my camera stops sometime giving me a warning that device is too hot and wait for it to cool down
There may be more problems depends upon individuals but these are common in all xperia Z1 with latest firmware Available
For just typing this comment while charging it, 49.5 degrees hot… That says it all…. Waiting quietly
Hopefully this fixes the black screen bug the majority of users are experiencing :/
I found 8 issues, most of them are critical:
1. Phone stuck on Sony logo during boot. This occurs when user switch off auto brightness.
2. Overheating – without any application turned on, phone is hot in pocket.
3. Auto locking screen is not working properly. Its black but still got backlight.
4. Xperia Z1 upon uncharging to 30% battery is turning off. If u want turn it on, you have to charge it to 100% battery.
5. Random reboot.
6. Wi-Fi connection issue. If u want use Wi-Fi u should turn it on, then reset phone. If you disconnect, you can use it again till reset phone.
7. High battery drain
8. When user turn off auto brightness, screen will randomly change brightness.
Try turn on optimise backlight from your display settings.
It solves most of your issues. I had the same problem as you.
yes it does. 🙂
yeas thats thrue i did that as long as yiou dont turn off the optimze backligth it everything will work fine on you z1 i have the german version of the xperia z1 and iam still on 14.1.G.1.534 i also got the purple one is the norwegian version of the z1 and i already update it to 14.1,G.257 the german version isnt i mean the firmware for german isnt out yet i guess they still testing it what i can advise to those who have that problem is dont turn off the option optimze backligth let it stay turned un al the time and you will not have that problem anymore
Screen goes black. Can hear phone ringing but screen is dead This problem started from the next day of purchase
Have you enabled “backlight optimization option” in display settings ? Enable it…
Yes it is enabled
When is new update coming?? Issues are really frustrating
I cannot use WiFi – if I use WiFi battery drains in 15 hours. WiFi off I get 72 hours of battery life, it’s ridiculous.
[ Xperia Z1 MAJOR 14.1.G.2.257 UPDATE Rolling ]
Improves Camera, Display Calibration, Power Consumption, Automatic Reboot issue, Wi-Fi range improves, Optimized Backlight option is ON everytime.
Z1 14.1.G.2.257 UPDATE info here http://xpgui.de/1952Wzq
I’ve just upgraded to the new firmware (257).
Seems to be slightly smoother than the previous update, especially in the terms of camera handling, seems it’s been enhanced. Didn’t really notice any leaps in the screen quality, but maybe that’s just me.
Battery, I haven’t had the chance to see if there’s any improvements as I was constantly checking out the camera and browsing, so obviously it drained faster, though it’s satisfyingly much, much better than the predecessor’s, being the Z.
Just recieve my z1. And 3 days it is automatically shuttig off my unit is on standby mode. I dont have any idea but it keeps me feel terrible. Is there any fix with this.
I have the same problem, it reboot by itself like 10 times a day, please if someone has the solution.