[Xperia Z1 Q&A, Help & Troubleshooting] Ferrard:
Hello Sirs,

First of all, I did search about this topic and I couldn't find the answers I'm look for. (may be my search skills are so bad). I apologize if there is already a thread related to this.

So here is my issue.

1. Updated my Xperia Z1 (India) to official 4.4.4 update via OTA. I rooted the phone using EasyRootTool_v8. Everything looked good and I used root uninstaller app to uninstall Walkman (before backing up). Now I need it back because I felt Walkman 8.4.A.1.4 works better. So I tried to get it back by downloading the same exact walkman APK and put it in system folder with full permission and restarted the phone and that got installed. But everytime I restart the phone it says "Android is upgrading". After this when I try to open walkman it says "Unfortunately walkman has stopped"

2. So I tried to install the Dual Recovery and it says success, but with read only errors. The reason why I needed recovery it to flash everything from scratch and go back to 100% official built so walkman would work.

Here are the results of EasyRootTool v8 and Dual Recovery:

----

ROOT:

-----

==============================================

= =

= Easy Root Tool v8 =

= Supports various Xperia devices =

= created by zxz0O0 =

= =

= http://xdaforums.com/ =

= showthread.php?p=53448680 =

= =

= Many thanks to: =

= - [NUT] =

= - geohot =

= - MohammadAG =

= - cubeundcube =

= - DooMLoRD =

= - nhnt11 =

= - xsacha =

= =

==============================================

* daemon not running. starting it now on port 5037 *

* daemon started successfully *

=============================================

Waiting for Device, connect USB cable now...

Make sure you have only one Android device connected

BlueStacks emulator can also cause problems

=============================================

Device found!

=============================================

Getting device variables

=============================================

Device model is C6902

Firmware is 14.4.A.0.108

=============================================

Sending files

=============================================

/dev/kmem exists. Using files of cubeundcube...

50 KB/s (935 bytes in 0.018s)

3490 KB/s (657704 bytes in 0.184s)

43 KB/s (757 bytes in 0.017s)

1324 KB/s (9496 bytes in 0.007s)

785 KB/s (13672 bytes in 0.017s)

=============================================

Loading geohot's towelroot (modified by zxz0O0)

=============================================

2738 KB/s (112181 bytes in 0.040s)

pkg: /data/local/tmp/tr_signed.apk

Success

=============================================

Check your device and click "make it ra1n"

Waiting for towelroot to exploit...

.

========================================================================================

IT WAS STRUCK IN WAITING FOR TOWELROOT TO EXPLOIT FOR A LONG TIME, BUT THE DEVICE SAID ITS ROOTED, SO I CLOSED THE WINDOW.

========================================================================================

==============================================

= =

= PhilZ Touch, CWM and TWRP Dual Recovery =

= Maintained by [NUT] =

= =

= For Many Sony Xperia Devices =

= =

==============================================

[ 1. Installation on ROM rooted with SuperSU ]

[ 2. Installation on ROM rooted with SuperUser ]

[ 3. Installation on unrooted ROM using TowelRoot ]

[ 4. Exit ]

Please choose install action. [1,2,3,4]?3

* daemon not running. starting it now on port 5037 *

* daemon started successfully *

=============================================

Waiting for Device, connect USB cable now...

=============================================

Device found

=============================================

Step2 : Sending the recovery files.

=============================================

mkdir failed for /data/local/tmp/recovery, File exists

7 KB/s (29 bytes in 0.003s)

3077 KB/s (15759 bytes in 0.005s)

163 KB/s (501 bytes in 0.003s)

2312 KB/s (11842 bytes in 0.005s)

3688 KB/s (56662 bytes in 0.015s)

1002 KB/s (3082 bytes in 0.003s)

125 KB/s (385 bytes in 0.003s)

4429 KB/s (657704 bytes in 0.145s)

4515 KB/s (2982577 bytes in 0.645s)

4418 KB/s (2633802 bytes in 0.582s)

4549 KB/s (1896216 bytes in 0.407s)

2256 KB/s (9243 bytes in 0.004s)

=============================================

Step3 : Setup of dual recovery.

=============================================

=============================================

Attempting to get root access for installation using TowelRoot now.

NOTE: this only works on certain ROM/Kernel versions

If it fails, please check the development thread (Post #2) on XDA for more detai

ls.

REMEMBER THIS:

XZDualRecovery does NOT install any superuser app

You can use one of the recoveries to root your device.

=============================================

=============================================

Getting ro.build.product

=============================================

Device model is C6902

=============================================

Sending files

=============================================

116 KB/s (359 bytes in 0.003s)

2318 KB/s (9496 bytes in 0.004s)

2669 KB/s (13672 bytes in 0.005s)

=============================================

Loading modified towelroot (by geohot)

=============================================

Success

4507 KB/s (106178 bytes in 0.023s)

pkg: /data/local/tmp/tr_signed.apk

Success

=============================================

Check your phone and click "make it ra1n"

Waiting for towelroot to exploit...

.

========================================================================

Please help as I'm very very new to this..