Not only official updates live the most advanced users of Android . Knowing about custom ROMs and ways of unlocking phones to add extra features means that they, in a privileged way (although not without dangers), can enjoy an expanded experience on board an Android phone . What we have on the table today is an unofficial update or ROM via SlimSaber for the Samsung Galaxy S4 LTE . It is a data package that has an approximate weight of 235 MBAnd that brings new features, in addition to performance adjustments and other customization options that we will not find in the official version and that greatly improve the experience that users of the Samsung Galaxy S4 can have on board .
Things to keep in mind before launching the update
1) First you should instead consider the fact install a ROM on any device leaves void the warranty the manufacturer has with the client, so that no longer will be Samsung (in this case) responsible for continuing to provide updates to your device, despite the fact that this ROM is intended to improve performance and the overall user experience.
2) Before launching the update, you should make sure that your device is rooted. The installation of any ROM requires having the device memory clean. You will also have to have made a backup copy of all the data that you have stored. For this reason, you will have to manually install Mod (CWM) in Recovery mode and TWRP on your computer.
3) Another step you have to take, almost necessarily: install the USB drivers on the computer so that your Samsung Galaxy S4 (model GT-I9505) is properly recognized.
4) Keep in mind that the ROM in question is only available for the Samsung Galaxy S4 that have the serial number GT-I9505 , prepared with 4G and LTE connectivity and a Qualcomm Snapdragon processor . If you are not very sure which model you have in your pocket, you better check it. Access the Settings section > About phone> Model number .
5) The next thing you have to do is fully charge the battery of your device. Make sure it is at least 80% full or else you could run into problems during the update process. If the equipment is turned off unexpectedly, the consequences could be fatal.
6) Finally, we want to remind you that we are dealing with a very technical procedure, which cannot be carried out by just anyone. In fact, it would be interesting if the one who gets down to work has express knowledge about the matter. If the installation process is not followed correctly , you run the risk of permanently losing your computer. From this means we are not responsible for any damages that may result from this procedure.
How to update Samsung Galaxy S4 LTE / 4G to Android 5.1.1 Unofficial Lollipop, step by step instructions.
These are the instructions you must follow to complete the update. Forget about them if you do not know about these types of updates, since you could experience the problems that we have already warned you about at the beginning.
1) First, download the Android 5.1.1 Slimsaber custom ROM to your computer . You will also need to download the Google Apps file .
2) Connect your Samsung Galaxy S4 (GT-I9505) to the computer through a USB cable . You can rescue the one that came in the device box or use any that is compatible. Remember to have the drivers installed . If you don't know where to find them, go to this direct link and you will have them in a moment.
3) Now rescue the two files that you have downloaded and saved on your computer. Save them to the phone's SD card memory . These files in ZIP format should be stored in the root of the SD card and not in any other folder. It will be useful for you to easily retrieve them later.
4) Turn off your device and disconnect it from the USB cable of the computer.
5) Next, press the Volume Up, Home and Power buttons at the same time.
6) You will enter the recovery mode and you will have to erase the phone memory, selecting the option "Erase data / Factory reset" . At this point we must remind you that you can use the Volume keys to navigate and the Power button to select the different options, as long as you are in recovery mode.
7) Clear cache memory. Click on "Wipe Cache Partition" .
8) Now go back to ClockworkMod recovery mode and select “Advanced” . Click on "Wipe Dalvik Cache" . This step is totally optional, but experts recommend this procedure so that later we do not have problems with boot loops or any other errors in the ROM installation process .
9) Go back to the recovery mode main screen and then select “Install ZIP from SD card” .
10) Click on "Choose ZIP from SDCard" and locate the file corresponding to the Android 5.1.1 Lollipop ROM . Enter the installation process. Then repeat the same procedure for Google Apps . Here you can continue using the Volume keys to navigate and the Power button to select the different options.
11) When you have finished with the installation, go to “+++++ Go Back +++++” and restart the computer. You will only have to click on Restart the system now , within the recovery menu itself.
12) Finally, keep in mind that your Samsung Galaxy S4 will have to continue with the installation and boot process. It is very likely that the computer will restart again, so be patient and let it run its time.
When booting up again, the Samsung Galaxy S4 should already work through the SlimSaber custom ROM . You can check it by accessing the Settings section > About phone. What you should see, in this case, is that your Samsung Galaxy S4 works through SlimSaber Android 5.1.1 Lollipop custom ROM . Enjoy it!