Hey everyone,
I need help soon as possible.
I have a Xperia Z1 C6903 with android 5.1.1 and my firmware is 14.6.A.9.368 and I want to downgrade to 4.4 (KitKat) because Android 5.1.1 is stealing a lot of battery and is slower than 4.4, so I want to get back to it.
MY PHONE IS ROOTED.
I saw a lot of threads about this, but I still don't know much..
I have flashtool, I just need a download link for a firmware of 4.4 (KitKat) that is compatible with my phone and will run without problems.
(I dont know if this is important but my SI is 1276-1925.8 EL,EN) <- Don't know what is this..
I'm from Portugal, so I'm sure I need a firmware of Portugal version I dont know.. I think I have an Unlocked phone.
Waiting for help.. Thanks!
Wrong board - this should have been under XPERIA Z1 Q&A, HELP & TROUBLESHOOTING
No, you don't need to unlock your phone's bootloader to use Flashtool and flash a stock 4.4.4
You can check the FTF download links posted in our community boards. Technically speaking it's OK to use another regions FTF on your phone, i.e. Philippine phone (like mine) using Singapore ROM is just as the same as Philippine phone using Philippine ROM.
I recently downgraded to 4.4.4 from a spanish mod'er.
Was also just sick of LL's battery life... and suddenly I can forget about charging etc. Finally lasts for about two days again...
http://www.htcmania.com/showthread.php?t=897152
Lollipop is faster and much better overall
Kitkat just fur battery life on 3g and app compatibility
I find if i disable location the battery last longer
Sent from my C6903 using Tapatalk
Related
Orange seem to be taking years to release the JB update for the Xperia T. I know they have to check it and whatnot, but does it really take that long, since both Google and Sony have already been through the update with a fine toothcomb?
I'm seriously considering rooting my phone as Orange (EE) are just promises and more promises.
Is it worth rooting?
Please advise..
root isnt necesary when you want to flash different region firmware...just backup your firmware http://forum.xda-developers.com/showthread.php?t=1377853 and then flash some JB firmware via flashtool and when you want to go back just flash your created backup:good:
Vodafone is not planning on releasing 4.1 either, at least here in Spain.
Frankly, I don't bother with carrier customized roms any more, as soon as I check the phone is working I start flashing.
Conercao, you should do the same thing that i've done.
Take an official JB .tft files from XT wihout operators (like Orange, which never follow updates), you can find this on the forum, and you've to flash it using flashtool.
There is no bug or no problem with it, because it's the ROM provide by Sony, without all orange stupids apps.
If you want to keep the root, there is some tutos in the android dev sections to keep it (downgrade via flashing an old firmware .303 if I remember and do some particular things to keep the root). I haven't done this, just because i forgot it when i flash the JB tft files.
Maybe i'll do this next week, I don't know ...
Did the same as others here op. Just get the official firmware and flash. First android phone I've had that I've not felt compelled to root.
Also highly recommend you check out Xperia Launcher 1.3.7 in these forums. An excellent modded stock launcher with a heap of extra features.
Sent from my LT30p using xda premium
hello guys,
I have an xperia Z I have not unlocked anything or rooted my phone at all since I got it, I just did the normal OTA updates and now I have
C6602
4.1.2
build: 10.1.1.A.1.253
open sim (not locked on any carrier)
how can I manually update to the official 4.2.2 stock that was released yesterday without tempering with anything and without rooting or anything
help will be much appreciated.
ahassouna said:
hello guys,
I have an xperia Z I have not unlocked anything or rooted my phone at all since I got it, I just did the normal OTA updates and now I have
C6602
4.1.2
build: 10.1.1.A.1.253
open sim (not locked on any carrier)
how can I manually update to the official 4.2.2 stock that was released yesterday without tempering with anything and without rooting or anything
help will be much appreciated.
Click to expand...
Click to collapse
Well check SUS/PCC for update first, but if there's none there either - Download a 4.2.2 Firmware (there's plenty) and flash with flashtool, there's guide pinned on the forums. Remember not to wipe data if you have important stuff on it.
Search, read and then read some more...
You have been a member here long enough where you should know that creating a Question thread in the Development forum is wrong.
Also, there are numerous threads with answers to your question, including sticky threads.
Hi guys, i'm Darwin from Honduras, Central America. Im newest with my SP 5302
So i have dowloaded the newest firmware 12.1.A.1.201, and i didn't read that i can't root from 4.3 JB.
I read some thread and i can make a downgrade from my current FW. So the thing is i can't find a FW that's fits my phone (country or region), the question is ¿Can i use othe countrys FW in my phone (UK, India for example)? It will crash? I will be able to use my sim card and navigate without problems?
Thanks in advice, you guys are awesome.
PS. Pardon my bad english.
If you are interested in the latest .201 which is rooted, there are some devs developing nice ROMs based on .201 with root.
At the moment I am on purexperience which incorporates Z2 gui, etc and fast. It still has some bugs but I can live with it until something better comes along, if at all. :laugh: (http://forum.xda-developers.com/showthread.php?t=2691767&page=4)
Otherwise, another dev has put a full .201 in the forum which is rooted (http://forum.xda-developers.com/showthread.php?t=2704312 or http://forum.xda-developers.com/showthread.php?t=2704009)
Note: you will need to be rooted with CWM recovery in order to install these ROMs. The only way that I know is to downgrade the firmware to old 4.1.2 which enables you to use Doomlord's exploit (V18) after which you can install CWM.
http://forum.xda-developers.com/showthread.php?t=2658952
http://forum.xda-developers.com/showthread.php?t=2405933 (for this one you will have to flash .254 full firmware before starting the process)
PS: you don't have to get the ftf that fits your country. Just take CE, SG, AU, UK (if you are comfortable with English) and it will prompt you for your language during setup...After all the downgraded ftf is simply a step to root and will be wiped out when you install .201
you can use stock based ROM, I am curently used existenz 2.1.5, it now also have newer version with xperia sirius features on it.
complete tutorial and downgrading : http://forum.xda-developers.com/showthread.php?p=51624250
headache59 said:
If you are interested in the latest .201 which is rooted, there are some devs developing nice ROMs based on .201 with root.
At the moment I am on purexperience which incorporates Z2 gui, etc and fast. It still has some bugs but I can live with it until something better comes along, if at all. :laugh: (http://forum.xda-developers.com/showthread.php?t=2691767&page=4)
Otherwise, another dev has put a full .201 in the forum which is rooted (http://forum.xda-developers.com/showthread.php?t=2704312 or http://forum.xda-developers.com/showthread.php?t=2704009)
Note: you will need to be rooted with CWM recovery in order to install these ROMs. The only way that I know is to downgrade the firmware to old 4.1.2 which enables you to use Doomlord's exploit (V18) after which you can install CWM.
http://forum.xda-developers.com/showthread.php?t=2658952
http://forum.xda-developers.com/showthread.php?t=2405933 (for this one you will have to flash .254 full firmware before starting the process)
PS: you don't have to get the ftf that fits your country. Just take CE, SG, AU, UK (if you are comfortable with English) and it will prompt you for your language during setup...After all the downgraded ftf is simply a step to root and will be wiped out when you install .201
Click to expand...
Click to collapse
Indohara said:
you can use stock based ROM, I am curently used existenz 2.1.5, it now also have newer version with xperia sirius features on it.
complete tutorial and downgrading : http://forum.xda-developers.com/showthread.php?p=51624250
Click to expand...
Click to collapse
Thanks buddy, i appreciate your info i wanna try it later. Just im still in doubt with my question.
Can i use other country's FW? Im scared if i lose something, like my phone will be unable to conect the bands in my place.
darwinzp said:
Thanks buddy, i appreciate your info i wanna try it later. Just im still in doubt with my question.
Can i use other country's FW? Im scared if i lose something, like my phone will be unable to conect the bands in my place.
Click to expand...
Click to collapse
Yes, You Can
darwinzp said:
Thanks buddy, i appreciate your info i wanna try it later. Just im still in doubt with my question.
Can i use other country's FW? Im scared if i lose something, like my phone will be unable to connect the bands in my place.
Click to expand...
Click to collapse
The radio baseband determines the frequency the phone can receive flashing another region firmware won't affect it if yours is a c5303 I know Brazil is then you will be fine flashing other c5303 fw for example uk. I think its just USA that has a different baseband.
Programming is a race between engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.
Hello friends
Ive been scrolling different threads since quite long to find the most simple method to root my xperia z1 device.
I am completely new to rooting.
Some one kindly post the link of the most simple/flexible latest method of rooting xperia z1 phones as so many threads is making me confuse to shortlist, phone details are as under
Xperia z1
German Tmobile logo appears in start
C6903 model
android 4.4.4
Your cooperation would highly be appreciated
Thank you
I used this yesterday.
http://forum.xda-developers.com/showthread.php?t=3106459
Sent from my C6903 using XDA Free mobile app
Went from stock lollipop to rooted fine without having to revert back to previous android version first.
Will this work for kitkat
http://forum.xda-developers.com/showthread.php?t=2784900
I have done it on 4.4.4
just follow instructions, which are really easy, and you will get root in no time
Thanks alot mate, God bless u
Hi Xda people, nice to be with you on this marvelous site, i'm new ..and this my first thread on the site.
well i have a Xperia Z lte, first of all i install official 5.0 lollipop moving from offocial jellybean 4.3, but i think that i put a wrong rom, it's for an another model, coz i've finished by lodsing the LTE signal, knowing that i had it on the previous 4.3. To know my model, i looked on the bottom of the phone near the mic, it's written "c6603", so i put a c6603 rom, no LTE, i used the IMEI code in to many website, they all said that it's a c6606 not actually a c6603 ...
After searching for a c6606 firmware, i found a link on XDA : http://forum.xda-developers.com/xperia-z/general/stock-rom-xperia-z-c6606-10-3-1-e-0-t2538544 .... but i found dificulties to download from deev-host. i will try to fix the 4G by installing the c6606 firmware (when found), coz for me it's the only way, and i'm sure that you guys have more solutions, Help me please. Thanks a lot