Attend XDA's Second Annual Developer Conference, XDA:DevCon 2014!
5,808,448 Members 40,462 Now Online
XDA Developers Android and Mobile Development Forum

Sony Xperia Z Ultra NOT booting if any non-Sony ROM is flashed....

Tip us?
 
aarmath
Old
(Last edited by aarmath; 28th August 2014 at 11:48 AM.)
#1  
Junior Member - OP
Thanks Meter 0
Posts: 29
Join Date: Oct 2011
Default Sony Xperia Z Ultra NOT booting if any non-Sony ROM is flashed....

Hola folks!

Thanks for taking time out to go through my post.

I have a Xperia Z Ultra with official Sony Kitkat FW 4.4.2. & it works absolutely fine. So I decide to go the CFW way in the following order:
- Use EasyRootTool v12.1 to root the phone.
- Install Recovery via ZU-lockeddualrecovery2.7.154-BETA.installer
So far so good.
Phone reboots into TWRP Recovery from where I installed (After clearing Dalvik cache et al) Candykat ROM. Note ONLY the ROM was flashed. I did not flash GAPPS or any other package ONLY the ROM & hope the phone would boot up.

This is where it gets bad...

- Phone refuses to boot up
- I see the notification/power/charging light now change color to a blinking Red

Anyways, I use FlashTool.exe (flashtool-0.9.16.1) & resurrect the phone, flashing a factory build FTF file (God bless them souls who created it!).

This time I do the whole process again & try CandyKat ROM. Same friggin problem!!! Am I doing something that is not correct? Am I supposed to unlock the bootloader? I checked the forums & everyone seems to be having a good time flashing them ROMs. What gives?

Any suggestions/recommendations are ever welcome.

Warm regards,
Aaron

*EDIT*
My phone is a C6802 model.
 
maxld
Old
(Last edited by maxld; 28th August 2014 at 12:04 PM.)
#2  
maxld's Avatar
Senior Member
Thanks Meter 209
Posts: 1,137
Join Date: Mar 2009
Location: Łódź
Flash non-Sony ROM, then unpack boot.img from the rom you have flashed, and flash it manually via fastboot or flashtool. I think that your phone is not booting because of wrong kernel.

Oh, and btw. This thread has nothing to do with development section, it should go to Q&A.
Xperia Z Ultra / Sony Smartband™ / FiiO E6
Galaxy Note 2 16GB
Cube U35GT2
iPad 16GB & 64GB 3G
iPad mini 16GB
iPhone 4 16GB
 
adfurgerson
Old
#3  
Senior Member
Thanks Meter 600
Posts: 1,649
Join Date: Jan 2011
Yes you need to unlock bootloader before flashing non stock based roms. Be sure to back up your TA partition before you unlock.
The Following User Says Thank You to adfurgerson For This Useful Post: [ Click to Expand ]
 
maxld
Old
#4  
maxld's Avatar
Senior Member
Thanks Meter 209
Posts: 1,137
Join Date: Mar 2009
Location: Łódź
Quote:
Originally Posted by adfurgerson View Post
Yes you need to unlock bootloader before flashing non stock based roms. Be sure to back up your TA partition before you unlock.
Exactly... How could I forget about that
Xperia Z Ultra / Sony Smartband™ / FiiO E6
Galaxy Note 2 16GB
Cube U35GT2
iPad 16GB & 64GB 3G
iPad mini 16GB
iPhone 4 16GB
 
blazta
Old
#5  
Member
Thanks Meter 3
Posts: 53
Join Date: Feb 2009
And a kernel that works with the rom you will use

Sent from my C6833 using Tapatalk
 
gregbradley
Old
#6  
gregbradley's Avatar
Forum Moderator
Thanks Meter 3,952
Posts: 9,279
Join Date: Mar 2011
Location: Manchester
Please post questions and help threads in the Q&A/Troubleshooting section

You will get answers and help much more quickly if you do

Thread moved

How to get root on Xperia Z1 with KitKat 4.4.2, 4.4.3 & 4.4.4

If you are unsure, then read this.
If you are still unsure, watch this.
 

My contributions.
If I have seen further it is by standing on the shoulders of giants. Sir Isaac Newton

[X10] | [NEO] | [Xperia T/TX] |
[Xperia Z1]
You are free to share my work, but please provide the correct credits and a link to my original thread.


 
blueether
Old
#7  
blueether's Avatar
Senior Member
Thanks Meter 1,151
Posts: 2,656
Join Date: Jan 2011
Location: Te Awamutu, New Zealand

 
DONATE TO ME
so what you have to do now is:

flash a FTF with flashtool to get a booting device again
root
reinstall dual recovery
backup TA
unlock bootloader
flash ROM
Charles
Alcatel One Touch "easy" -> Nokia 1110i -> Alcatel ame-408 -> Motorola Razr v3 -> Huawei u8100 -> Sony Xperia Z-Ultra

ROM:- Carbon
Kernel:- Pimped Kernel

Thankyou to all those that have donated to me over 2014.

Tags
blinking red light, booting, ultra, xperia
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Paid Android App Developers Will Soon Have to Provide Physical Address

Google has now changed its policies regarding paid app developers. … more

Windows Developers Rejoice! Dev Program’s $99 Yearly Fee is No More!

Microsoft rule in the mobile market, much like the giant dinosaurs … more

Add the Xperia Z2 Lock Screen to Your Favorite KitKat ROM

Almost every OEM adds its own unique flair to their stock firmwares. While some of … more

Android App Review: Control Your Phone with Quick Control Panel – XDA Developer TV

Your Android smart device has many features that you … more