Z1 customization number - Xperia Z1 Q&A, Help & Troubleshooting

does anyone know what is this s1 boot version and customization number is ?and does it effect on the performance of my device ?
i am having random reboots every 10 min on stock 4.3 but not on a stock 4.4.4 how can this be solved?
my device is xperia z1 c6903 UB

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[Q] dual booting on the z1? is the bootloader locked?

I am deciding on buying either the s4 or the z1. The galaxy s4 dev community seems more active and there is a dual boot solution for it... Is there a dual boot solution also on the xperia z1?
Back in the days of xperia x10, the bootloader was locked.. is it the case for the xperia z1? is it as "hackable" as the s4?
Its upto u what u buy.. Multiboot available for z1 though it requires unlock bootloader from which Stock and AOSP Roms work Simultaneously
Also all AOSP ROMs need UB too
Sent from my Xperia Z1 using Tapatalk

HELP PLEASE XPERIA Z UB TAKES LONG ON FLASHTOOLS Flashing

HELP PLEASE XPERIA Z UB TAKES LONG ON FLASHTOOLS Flashing
i flashed before with no problem stock 4.4.2 with flash tools
but now after using custom rom i m flashing that stock rom again and it take too much long now for 50mintunes.
what should i do ? (

Sony Xperia Z1 Lollipop 14.5.A.0.270

Recently I bought a Sony Xperia Z1 that came with Kitkat. It is worth to upgrade to the Lollipop 14.5.A.0.270 or it is better to stay with Kitkat?
LuciIT said:
Recently I bought a Sony Xperia Z1 that came with Kitkat. It is worth to upgrade to the Lollipop 14.5.A.0.270 or it is better to stay with Kitkat?
Click to expand...
Click to collapse
In my opinion its better to unlock the bootloader and install a custom rom
As long as you don't want to unlock your bootloader you could safely upgrade to .270 and root your phone using kingoroot( then remove it using some scripts and install supersu)
Or just stay at .270...
You can also downgrade it back to KK using Flashtool if you don't like lollipop..
Lollipop has some issues (depends sometimes .... ) but for me its better than KK..
Also we are currently waiting the new official 5.1 rom which will fix most of the issues (I hope so)
Stay with KK
IMO It is better to use KitKat with this phone. You can tweak the hell out of it and play with multiple roms. The stock rom for Lollipop on this phone is a joke. You could quite easily use the same software running on z3 roms on this phone.
But for now I have one recommendation. This is my fave rom for Kitkat.
http://forum.xda-developers.com/son...evelopment/rom-d550314-4-0-108latest-t2862578

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Stock Rom Build Number- 12.1.A.1.205
Android JellyBean 4.3
Sony Xperia C5303

What is the best rom to Xperia SP LBL?

Hello I have Xperia SP C5303 2.05 actually with a rom 4.4.2 CM11 (Actually i can unlock the bootloader but i have problems doing it)
Well i wanted to know what's the best rom to xperia sp c5303 .205 in performance, battery, quality
first I installed Lollipop 5.0.2 (CM 12) the battery worked good 1 day duration, playing, on internet, apps but so the performance was so slow and bad, but i think Xperia SP wasn't made to Lollipop I don't recommend you Lollipop if you want to install it on your Xperia SP and that's the reason so I back to Kit kat 4.4.2 (CM11) but i have a little problem with performance so the touch something isn't normally responding in way to I need to press strong the dispay to type in the keyboard or the UI stops sometimes, all else works nice.
The generic rom gives me wifi problems because disconnects alone or doesn't go far, (also it's obsolet)
so I wanted to install the master rom v5 and that all goes well except say it gives wifi problems because disconnects, just doesn't work or get error when connecting. I've read that in comments
(is that true?)
Also I saw PureXperience 5.0 (4.3.1) it's a custom rom I think so because it looks like sony z3 with lollipop but I read something about it the people saying drains battery fast and the phone is hot the mostly time (I had that problem in 5.0.2 cm 12) so I want to install a good rom but I don't know which one so can you tell me which one is the best rom or recommend me some and the why
Thanks!
Hi
I installed many roms on my Xperia SP
Cm 12 was awful but when i installed cm 12.1, my mind changed about lollipop
Cm 12.1 was really great, i didn't have the problems that i had in cm 12
But for Cm 12.1 you should unlock your bootloader
I suggest that you wait for Z5ExperienceSP 5.1.1
That works on LBL
Z5ExperienceSP 5.1.1 [LBL]

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