Finally, the January 2018 Security patch is available for the Samsung Galaxy S7. Currently available for the Chinese model, this update should soon embrace all the Galaxy S7 versions. However, if you own the SM-G9300 model of the SGS7 and want to flash the G9300ZCU2BQL3 firmware manually, without waiting for the Android notification, don’t hesitate and choose to follow all the guidelines from below.
The G9300ZCU2BQL3 software is still based on Android 7.0 Nougat. So, this is not a major OTA but a small update that comes to resolve recently reported bugs and certain security breaches. Mainly, the January 2018 Security patch will secure the Android OS that runs on your Samsung Galaxy S7 and will address the bugs and the other problems that were causing malfunctions in the past. Overall, with this new update installed your phone should run better and faster while you will be able to experience a smooth and stable Nougat system.
But, the OTA is currently offered in stages and for limited markets only. But, if you want you can choose to use the full firmware package and manually resume the update process. All you need to do is to make sure that you are using the SM-G9300 version of the Samsung Galaxy S7 as the G9300ZCU2BQL3 software is compatible only with this particular Android based device.
During the manual operation Odin will be used as the flashing program. This is a tool developed by Samsung and designed especially for update types of processes. So, the steps explained below are all supported by your OEM meaning that you are about to perform an official process. Therefore, you have nothing to worry about – Samsung KNOX won’t get tripped so you won’t lose your phone’s warranty (that can happen only if you choose to update by using a custom ROM firmware – like Lineage OS, AOKP or Paranoid Android).
However, a backup should be applied. While installing the January 2018 Security Patch your data might get corrupted or you might have to initiate a hard reset – we will discuss about these aspects a little bit later. Anyway, losing important stuffs during the update process can rarely happen, but since there is a risk you should be precautious. And in that respect a backup is recommended – in this way you can easily secure your contacts, call logs, texts, images, videos, audio files, market apps, internet settings, EFS folder, IMEI / NVRAM data and more.
The backup can be easily applied on the Galaxy S7. All you have to do is use already built-in cloud storage platforms. Additionally you can choose to sync your personal files with your Google Account. And, don’t forget that you can always access Google Play and download dedicated and more specialized backup and restore apps – in that case make sure you choose only already tested apps.
For the actual Android 7.0 Nougat based G9300ZCU2BQL3 update process you will need to use a computer. On that machine you will install Odin and download the January 2018 Security Patch that’s available for your Galaxy S7. On this computer you also need to install your phone’s drivers before doing anything else – Samsung KIES can be used in that respect.
Now, for making things work, on your smartphone you need to enable Developer Options. You can do that by accessing About Phone; from there you then have to tap repeatedly on Built Number – keep on tapping on this field until you receive the ‘you are a developer’ message. Afterwards, go to Menu – > Settings and find the Developer Options entry. Access it and choose to check the USB Debugging field.
You also have to verify the power that’s left on your handset. This is an important aspect as if your phone will get turned off while you use Odin, its Android system might get soft bricked. So, if implied (basically, if the power that’s left is lower than 50%) plug in the charger before starting the steps explained below.
One more thing: this manual update procedure will work even if your Samsung Galaxy S7 SM-G9300 is currently rooted or tweaked in any other way. However, after this process is completed, the root access will be revoked and your device will be restored back to its default state. This particular aspect can be used in your advantage – for example, if you are dealing with soft related problems you can choose to manually install the Android OS for addressing all these issues (it should work for general malfunctions such as boot loops, bugs, lags, hangs, screen freeze, battery drain, heating problems, signal strength, total blackouts and more).
Good; you can now start the update operation:
Download and Update January 2018 Security Patch on Samsung Galaxy S7 (SM-G9300)
- Power on your computer and enable an internet connection.
- Download Odin from this page. Save the file on your computer and afterwards follow on-screen prompts in order to install the flashing program.
- Also download the January 2018 Security patch for your Galaxy S7 – from here. Save the update package on desktop.
- Meanwhile, run Odin on your computer.
- Switch off your smartphone and wait while the power off is being completed; afterwards, reboot download mode on your Galaxy S7: press and hold the Power, Volume Down and Home buttons at the same time, for a few seconds.
- Finally, connect your device with your computer via USB cable – once you do that on Odin the ‘added’ message will be displayed and the ID:COM field will be turned yellow or blue.
- If your smartphone isn’t recognized by the flashing program, reinstall its drivers on your computer and retry the process.
- If everything works as expected, on Odin click on the AP button and load the Android Nougat update package from your computer.
- Don’t check the Re Partition and the Auto Reboot options on Odin.
- Click on Start when you are ready – the flashing process will automatically start.
- In the end the ‘pass’ message will be displayed and the ID:COM field will be turned green.
- At that point you can close Odin, unplug the USB cable and reboot your device.
Problems that might occur and how to fix them
The last reboot might take a while – longer than you are used to. However, if your device gets stuck in a boot loop you need to take action: try to get into recovery mode and from there choose to make a hard reset and clear app data cache – that can be done by selecting ‘wipe data factory reset’ followed by ‘wipe cache partition’.
Also, in rare situations, the flashing program might get stuck right in the middle of the update process. If that happens try to: close Odin, remove the USB cable, force-restart your Galaxy S7, reinstall your phone’s drivers on your computer and repeat the update process from step 1.
Good work. The Android 7.0 Nougat based January 2018 Security Patch is now running on your Samsung Galaxy S7 SM-G9300. If you notice something different, or certain improvements, don’t hesitate and let us know – you can anytime choose to share your update experience with us and with our readers by using the comments field from down below. Don’t forget; stay close if you want to receive the latest Android update solutions available for your Samsung Galaxy S7. Enjoy.