[Tutorial] Abrir Boot Loader (de momento solo ingles)

[kapirutxo]

Aqui os dejo como abrir el boot loader de vuestro terminal.
De momento lo pongo en ingles Otro dia ya lo traducire con mas tiempo

http://techglen.com/2014/03/28/how-t...cial-firmware
How to Root Xperia M C1905, C1904 Android 4.3 15.4.A.0.23 Official Firmware 32
BY HAYDER AMEEN ON MARCH 28, 2014 ROOT ANDROID
Sony Xperia M has been officially updated to Android 4.3 Jelly Bean 2 days ago. One day after the launch of this update, a XDA member has come up with a simple method to root this firmware. Currently it is the only know working method and it requires a phone with unlocked bootloader. If the bootloader of your smartphone is still locked, then you may have to wait for a new rooting method, that does not require bootloader to be unlocked. Also, a CWM ot TWRP recovery made for locked bootloader can be used to root Xperia M official firmware. However, currently there is none available for 4.3 firmware yet.

This method requires that you must be using Xperia M C1905, which has been updated to Android 4,3 Jelly Bean, with build number 15.4.A.0.23. If you try it on another firmware or another phone, for some unknown reason, we cannot gaurantee its safety. Here is a quick glance at how this rooting method will work. This is the typical rooting method, often called as universal rooting method, in which you flash a SuperSU zip via a custom recovery like CWM or TWRP. This method can be applied to a large number of devices. Many other Xperia devices are rooted the same way.

Lets dive deeper into this method, to understand it completely. It is for those, who are new to rooting stuff and fear it. All first timers usually fear it. Rooting is, for me, an integral part of Android. If I don’t root my phone, I’ll feel like my phone isn’t equipped with all the required tools. A rooted phone is capable so much more than anyone can imagine. To be honest, there is no explanation to what a rooted phone is capable of. With right method and coding, one can add anything to the device and make it work. There are number of applications available in Play Store, which are for rooted phones. This assures many that rooting Android is not something harmful or illegal. It is basically a method of unlocking system locked files and modifying them at one’s own will. There are number of tweaks available, which greatly enhance the capabilities of a regular Android device. I hope it’s enough for people to understand why rooting Android is so important and why so many people want it.

This guides includes a kernel with CWM packed inside. You can enter CWM on Xperia M by hitting volume up and down keys while phone is booting up. Navigate in the CWM using volume keys. Some recoveries are modded to be used with touchscreen. That’s cool but still not available to all. The basic CWM recovery includes navigation using buttons only. As for TWRP custom recovery, it is totally designed for touchscreen devices. It is the latest custom recovery out there. However, CWM still dominates the Android world and it will not be easy to let it go for any other custom recovery.

Xperia M is a well designed smartphone. It can take on its competitors without a fail. It is a mid range device with Android 4.1 Jelly Bean out of the box. However, the Android 4.3 Jelly Bean update make things even better for this phone. The phone is more secure and more powerful than before. It is even more wise and saves more batter than before. The latest stamina mode allows users to get at least 2 days of average usage from this device, in one charge. Sony made sure that you enjoy all music and movies stored up on your device with latest media apps on board. This update includes latest Sony media apps, which ensure quality entertainment for users.

Enough with the explanations, lets move on to rooting Xperia M 4.3 15.4.A.0.23 firmware. If you are truly unlucky and have not received the update yet, then you can update your device manually as well. Here is a complete guide to update your Xperia M to Android 4.3 15.4.A.0.23 official firmware using ftf file. Ftf files are the full firmware files for Xperia devices.

How to update Xperia M C1905 to Android 4.3 15.4.A.0.23 Official Firmware

Required Downloads:

KERNEL-4.3.img
UPDATE-SuperSU-v1.94.zip
Disclaimer:

Remember that all processes like rooting, flashing and manual updating are custom methods. They have no concern with Google or mobile manufacturer. Follow every step carefully to avoid any mishap. Owner of site will not be held responsible in case of any mishap. Do it at your own risk. Rooting and flashing custom ROMs will also void warranty.

Before starting rooting process, I want you to take few things into consideration. Make sure that you read every thing written in this requirements table. These are for the good of your device.

Requirements

1. ADB and Fastboot Drivers:

ADB stands for “Android Debug Bridge”. ADB is essential to establish a connection between you android device/android emulator and PC. If you are a developer, or an android device owner, who wants to mess with his android then you will need ADB & Fastboot installed on your PC. ADB and Fastboot drivers are essential to detect your device while it is connected to computer. Without these, you may find it difficult to root your device. If you do not know how to install ADB and Fastboot Drivers, Visit our Guide for this purpose.

For everything related to Android from now on, you will need ADB and Fastboot. That is why it is essential to set up these tools before proceeding. You have to do it only once, and then use them forever. Visit following link to learn how to do it.

How to Install ADB and Fastboot Drivers – TechGlen

You can also use Minimal ADB and fastboot Tools. These are lite and easy to use. In most of the cases, these are enough to handle everything. If you want the things to be done easily, then you may try Minimal ADB and Fastboot Tools first. Get them from the link given below.

Minimal ADB and Fastboot Tools – Download Here

2.Sony Xperia M USB Drivers:

After you have installed ADB and Fastboot drivers, connect your device to computer. It will download and install essential USB Drivers itself. If you face any issues in connectivity, install these USB drivers. Download flashtool from link given here and install it. navigate to drivers folder and install flashmode, fastboot and Xperia M drivers. It will install all essential USB drivers for Xperia M.

Sony Xperia M USB Drivers – Download Here

3.Battery must be charged over 70%:

Rooting and updating process is very crucial. Any mistake can lead to a mishap. One of the most common mistakes is low battery. It poses a threat while rooting and other similar processes are going on and phone shuts down due to low battery. Always remember to keep your phone charged above 70% to avoid any such mishap.

4.Check your Phone Model:

Always confirm that the guide you are following is for your device. You can learn about your device’s model name by navigating to Settings>About Phone. After you have confirmed your phone model, you can proceed further.

This Guide is Only for Xperia M C1905

5.Do not turn off Computer during Updating Process:

This mistake has same effects as having low battery on your device. That is why be careful to keep your computer plugged in during whole process.

6.Backup all your important Data:

Normally, rooting process does not wipe out your data but to be on the safe side, it is advisable to backup your data so that you can recover it in case of data wipe. If you are using a SD Card, remove it before rooting and insert it again after rooting has been done. Backup all data on internal storage on your computer. Backup messages and contacts by using methods described above. Follow this BACKUP GUIDE. If your device is rooted, BACKUP DATA WITH TITANIUM BACKUP.

If you already have TWRP or CWM recovery on your device, then you should make a Nandroid Backup. In case something goes wrong or you don’t like new update, you can easily go back to previous ROM easily.

6.Use correct file for your smartphone:

Sometimes we have lots of files, having similar names put together in same folder. Accidentally, we can use a wrong file which can result in bricking device. Therefore, it is advisable to put specific files for your device in a separate folder. This way, you will not be mistaken.

7.Get Developer Options Enabled:

In android 4.2.2, developer options are hidden. Developer option are provided for development purposes like rooting itself. It is second-last tab but you may not find it yet. To activate Developer Options you need to navigate to Settings>About Phone. Tap build number about 7 times until you get a pop-up saying your are a developer. In Android 4.1.2, developer options are already visible.

In case you face any connectivity issues, it might resolve issues.

8.Backup TA Partition:

When you unlock the bootloader, you will lose DRM keys, Bravia Engine functionality and warranty. Only way to avoid that is to backup TA partition before unlocking the bootloader. If you backup TA partition before unlocking bootloader for the first time, you will be able to restore the phone to factory state after relocking bootloader. Warranty will be intact again and Bravia Engine will be functional in Album app once again. Find the full guide from the link given below.

Note that due to some reasons, backin up TA partition may not be possible on every device because not every device can be rooted without unlocking the bootloader. Losing TA partition will do no harm to any device.

How to backup TA Partiton on Sony Xperia Devices

This rooting method will require unlocked bootloader. If you have not unlocked bootloader of your smartphone already, then you can use this method, given below to unlock bootloader of your smarphone. It is the official bootloader unlocking method.

How to Unlock Bootloader Of Xperia M

Dial *#06# and note down the IMEI code of your device anywhere
Now dial *#*#7378423#*#* and navigate to Service info > Configuration > Rooting Status
Now look for Bootloader Unlock Allowed
If Bootloader Unlock Allowed: Yes, then you may proceed
Now go to this page and accept all legal terms. Then enter your name and E-Mail address where you will receive unlock key from Sony
Now turn off your device completely
Start Minimal ADB and Fastboot Installer from Start menu
Hold volume up button and plug in USB cable in mobile’s port. You must have plugged in the USB in computer’s port already!
Do not leave the button until you see that LED has turned below
Wait for 10 seconds, if colour of LED does not change, then continue
(Optional) If LED colour changes and starts charging, then you need to install Fastboot drivers for your smartphones
(Optional) To do so, Install Flashtool from Here, navigate to the folder where it is installed, locate drivers folder, run exe file and install Flashtool drivers, Fastboot drivers and Drivers specific for Xperia M
Once in fastboot mode, type fastboot.exe -i 0x0fce getvar version in Minimal ADB command prompt and press Enter
You will get a response, for example 0.006s
This is a good sign! Now continue
Now type fastboot.exe -i 0x0fce oem unlock 0xKEY and press Enter. (Replace “KEY” with the unlock key you got from Sony in your Mail)
Bootloader will be unlocked in few seconds
It will wipe all data on internal SD Card only, so you better make a backup before doing this
How to Root Xperia M 15.4.A.0.23 firmware:

Download and Copy SuperSU file to phone’s SD card or internal memory
After downloading KERNEL-4.3.img, rename it to boot.img
Paste this file inside the folder where you have installed Minimal ADB and Fastboot
Now turn off your smartphone completely
Plug in mobile’s USB in cable in PC port only
Hold Volume up button and plug in USB cable in mobile’s port
LED of your smartphone will be blue and screen will show nothing
It is fastboot mode
If it does not remain blue for long, then read Optional part in bootloader unlocking method explained above
Once you are successfully in fastboot mode, then you can continue
Launch Minimal ADB and Fastboot from start menu or desktop
Now type Fastboot flash boot boot.img and press Enter
It will flash boot.img file on your device
Now unplug the device and boot it up
As soon as you see purple colored LED, start pressing volume up and down buttons repeatedly, until you are in CWM mode
Once in CWM mode, navigate to the folder where you have put the Super SU file
Select it and confirm its installation
It will be done in matter of few seconds
Once it is done, reboot your device and you will find SuperSU in app drawer
That’s all! Now enjoy with your rooted Xperia M
Got a question? Ask me in the comments below

Note:

Some people are experiencing bootloops afer flashing the custom kernel. It can be resolved easily by flashing stock kernel. Download the firmware from here. While flashing through flashtool, untick every option but kernel. It will solve the bootloop problem. It is a common error and nothing to worry about. After flashing custom kernel from here, directly boot into it, flash SuperSU and then flash stock kernel.

AboutLatest Posts

[GualetdlSerenet]

Gracias, pero cuando puedas pon los links de descarga por favor.

[kapirutxo]

De nada.
Aqui tienes el enlace original con todos los links.
Cuando tenga tiempo pondre mi version en castellano.

http://techglen.com/2014/03/28/how-t...cial-firmware

[jam19_mde]

Cuando voy a custom service, me dice que no puedo desbloquear bootloader, entiendo con eso que en la pag de Sony no me darán el código?

[jam19_mde]

Cuando voy al custom service me dice que no puedo desbloquear, entiendo con eso que no me darán el código en la página de Sony?

[kapirutxo]

creo que no pero mañana lo miro y te digo

[Lorente_9]

al liberar el bootloader se libera tambien el telefono en cuanto a la operadora? es que tengo un conocido que ha agotado los intentos de desbloqueo y no sabe como liberarlo, si por cable o que, gracias

[moniquiya huawei]

No se libera la operadora

[moniquiya huawei]

Y si ya agotado los intentos de desbloqueo tiene que avisar donde lo libero

[godslay]

lastima que mi bootloader esta bloqueado