Sony XPERIA Z1 Compact is smaller variant of XPERIA Z1. This phone has very nice HD Triluminos display, powerfull quadcore CPU from Qualcomm, 2 GB RAM or 20,7 megapixel camera. Below you can find the latest firmware for the phone and also three tutorials/manuals - how to unlock the bootloader, how to relock the bootloader and how to backup the original firmware customization.


First of all one important thing - before you start to do anything with your phone, do the backup of your personal data. It is only for your safety in case that something goes wrong or any mistake happens. In that case you can use the backup to restore the data and try to do everything once again. Each tutorial has been done many times to verify its propriety, so just read carefully all instructions and continue step by step. For each of Sony (Ericsson) XPERIA smartphones we will provide a manual consisting of 4, 5 or more „HOW TO“ chapters. Our tutorials will be of course updated every time when Sony Mobile publishes anything new, affecting any of our topics. All important files have been stored on Google Drive, so there should be no problem with downloading. The major part of every file has been created by myself and every file has been tested on the corresponding phone. All referenced files are determined for Sony XPERIA Z1 Compact D5503. So, what can you expect in terms of mentioned manuals / tutorials?

 


It is following 9 guidelines showing HOW TO:
1. install the newest generic Android 5.1.1 (for Sony XPERIA Z1 Compact D5503 it is 14.6.A.1.236 firmware)
2. install the newest generic Android 5.0.2 (for Sony XPERIA Z1 Compact D5503 it is 14.5.A.0.270 firmware)
3. install the newest customized Android 5.0.2 (for Sony XPERIA Z1 Compact D5503 it is 14.5.A.0.283 firmware)
4. install the newest Android 4.4.4 (for Sony XPERIA Z1 Compact D5503 it is 14.4.A.0.157 firmware)
5. install the newest Android 4.3 (for Sony XPERIA Z1 Compact D5503 it is 14.2.A.1.114 firmware)
6. install the newest Android for XPERIA m51w (Chinese version XPERIA Z1 Compact) without Google Apps
7. backup your original firmware customization (it is important in case you must send your phone to service)
8. unlock the bootloader (in case you want to install the custom kernels with recovery menu and much more)
9. relock bootloader on your phone
Do you want Android 6.0 Marshmallow for XPERIA Z1 Compact? Sign this Petition


1. how to install the newest generic Android 5.1.1 for Sony XPERIA Z1 Compact D5503

a) first of all, check your firmware version (if you already have the newest one, you do not need this tutorial)
b) download and install latest Flashtool from this article
c) download also latest Android 5.1.1 (mirrors Google Drive) for Sony XPERIA Z1 Compact
d) paste the ftf file downloaded in step c) to folder „Firmware“ included in the XPERIA Flashtool
e) open the XPERIA Flashtool, click on flash and choose downloaded firmware, than click ok. Important - if you do not want to delete any data of your phone, just uncheck flashing userdata.sin file. All data will remain in your phone, but sometimes it can cause additional troubles. So it is better (and I recommend that) to do the backup of your personal data, than proceed with clean instalation and then restore your personal data.
f) turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button 
g) after few minutes all is done and your phone gets the new firmware



2. how to install the newest generic Android 5.0.2 for Sony XPERIA Z1 Compact D5503
a) first of all, check your firmware version (if you already have the newest one, you do not need this tutorial)
b) download and install latest Flashtool from this article
c) download also latest Android 5.0.2 (mirrors Google Drive) for Sony XPERIA Z1 Compact
d) paste the ftf file downloaded in step c) to folder „Firmware“ included in the XPERIA Flashtool
e) open the XPERIA Flashtool, click on flash and choose downloaded firmware, than click ok. Important - if you do not want to delete any data of your phone, just uncheck flashing userdata.sin file. All data will remain in your phone, but sometimes it can cause additional troubles. So it is better (and I recommend that) to do the backup of your personal data, than proceed with clean instalation and then restore your personal data.
f) turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button 
g) after few minutes all is done and your phone gets the new firmware



3. how to install the newest customized (T-Mobile bootanimation) Android 5.0.2 for Sony XPERIA Z1 Compact D5503
a) first of all, check your firmware version (if you already have the newest one, you do not need this tutorial)
b) download and install latest Flashtool from this article
c) download also latest Android 5.0.2 (mirrors Google Drive or Mega) for Sony XPERIA Z1 Compact
d) paste the ftf file downloaded in step c) to folder „Firmware“ included in the XPERIA Flashtool
e) open the XPERIA Flashtool, click on flash and choose downloaded firmware, than click ok. Important - if you do not want to delete any data of your phone, just uncheck flashing userdata.sin file. All data will remain in your phone, but sometimes it can cause additional troubles. So it is better (and I recommend that) to do the backup of your personal data, than proceed with clean instalation and then restore your personal data.
f) turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button 
g) after few minutes all is done and your phone gets the new firmware



4. how to install the newest Android 4.4.4 for Sony XPERIA Z1 Compact D5503
a) first of all, check your firmware version (if you already have the newest one, you do not need this tutorial)
b) download and install latest Flashtool from this article
c) download also latest Android 4.4.4 (mirrors Google Drive) for Sony XPERIA Z1 Compact
d) paste the ftf file downloaded in step c) to folder „Firmware“ included in the XPERIA Flashtool
e) open the XPERIA Flashtool, click on flash and choose downloaded firmware, than click ok. Important - if you do not want to delete any data of your phone, just uncheck flashing userdata.sin file. All data will remain in your phone, but sometimes it can cause additional troubles. So it is better (and I recommend that) to do the backup of your personal data, than proceed with clean instalation and then restore your personal data.
f) turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button 
g) after few minutes all is done and your phone gets the new firmware



5. how to install the newest Android 4.3 for Sony XPERIA Z1 Compact D5503
a) first of all, check your firmware version (if you already have the newest one, you do not need this tutorial)
b) download and install latest Flashtool from this article
c) download also latest Android 4.3 (mirrors Google Drive or Mega) for Sony XPERIA Z1 Compact
d) paste the ftf file downloaded in step c) to folder „Firmware“ included in the XPERIA Flashtool
e) open the XPERIA Flashtool, click on flash and choose downloaded firmware, than click ok. Important - if you do not want to delete any data of your phone, just uncheck flashing userdata.sin file. All data will remain in your phone, but sometimes it can cause additional troubles. So it is better (and I recommend that) to do the backup of your personal data, than proceed with clean instalation and then restore your personal data.
f) turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button 
g) after few minutes all is done and your phone gets the new firmware



6. how to instalAndroid for XPERIA m51w (Chinese version XPERIA Z1 Compact) without Google Apps
a) first of all, check your firmware version (if you already have the newest one, you do not need this tutorial)
b) download and install latest Flashtool from this article
c) download also latest firmware for Sony XPERIA m51w (mirrors Google Drive or Mega) for Sony XPERIA Z1 Compact
d) paste the ftf file downloaded in step c) to folder „Firmware“ included in the XPERIA Flashtool
e) open the XPERIA Flashtool, click on flash and choose downloaded firmware, than click ok. Important - if you do not want to delete any data of your phone, just uncheck flashing userdata.sin file. All data will remain in your phone, but sometimes it can cause additional troubles. So it is better (and I recommend that) to do the backup of your personal data, than proceed with clean instalation and then restore your personal data.
f) turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button 
g) after few minutes all is done and your phone gets the new firmware



7. how to backup your original firmware customization
a) if you do not want to lose warranty of your phone, first thing you have to do is to backup your original customization
b) download Sony PC Companion and connect your phone
c) select update your phone in Sony PC Companion
d) application will prompt you to disconnect your phone before starting downloading firmware, just make it (remember - dont disconnect your phone when update just start...)
e) after finish downloading firmware cancel the update
F) after that, go to C:\ProgramData\Sony Mobile\Update Engine\db\some number\blob_fs, there you find 3 (maybe 4) files, which names start FILE
g) 
download and install latest Flashtool from this article
h) paste the three files, which names start FILE, from blob_fs folder to folder „Firmware“ included in the XPERIA Flashtool
i) open the Flashtool, click on Advanced, choose decrypt files and put all three files from blob_fs folder to the right columm
j) click ok and after approx. one minute a pop up Window will appear via Flashtool
k) mark all files except simlock.ta and transfer them to the right column, than fill in a box in the right upper corner (fill in what you want, it is just for you)
l) now click ok and Flashtool will create backup of your original firmware customization, that you can anytime flash to your phone



8. how to unlock your bootloader
a) download and install latest Flashtool from this article
b) start Flashtool and click on BLU button on the top
c) turn off your device and when Flashtool shows pop up window, connect device to PC with holding volume down button
d) Flashtool will check your device and than you need to connect your device once more, now with holding volume up button
e) click on get unlock key button, it will switch you to Sony Mobile website, here select your phone and hit continue
f) fill your email adress and accept terms and conditions, than click submit
g) go to your mailbox and click on Click here to proceeed link in mail from Sony Mobile
h) copy IMEI from Flashtool to Sony Mobile site and once more accept term and contidion, than click submit
i) copy unlock key to Flashtool window and than click unlock
j) your device is unlocked



9. how to relock your bootloader
a) download and install latest Flashtool from this article
b) start Flashtool and click on BLU button on the top
c) turn off your phone and when Flashtool shows pop up window, connect phone to PC with holding volume down button
d) just click on relock button and your bootloader is locked for now

 

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