Verizon Galaxy S4 updated to I545VRUGOF1 (OF1) root possible with FlashFire

The Samsung Galaxy S4 might have been abandoned by its users who have upgraded to the latest flagship smartphone. But Samsung and Verizon seems to be still paying attention to this device by releasing a new OTA update with software version I545VRUGOF1, it contains many bug fixes that brought the previous firmware.


Rooted users should not worry about it, as now there’s a method to root OF1 for Verizon Galaxy S4 (SCH-I545). We can use a tool called FlashFire, it’s a new flash tool by Chainfire, the creator of Mobile Odin and CF-Auto-Root utility.

As we mentioned earlier, the I545VRUGOF1 brings major software bug fixes and security patches. Among all, the most important is a patch to fix a Stagefright vulnerability. The vulnerabity brings serious security problem, an attacker could utilize the vuln then take control of your device and also stealing your personal data. Everything is done just by sending you an MMS.

of1 root verizon galaxy s4

Verizon Changelogs page

If you still have superuser access to the previous software, and now want to update to Verizon Galaxy S4 to I545VRUGOF1 (of1) OTA update, you can take some simple steps below.
Here’s the step by step guide based on muniz_ri’s thread on xda forum.

  1. Download and install the latest FlashFire app by Chainfire, it’s a new mobile flash tool, which has a capability to flash a stock official firmware OTA directly from the phone.
  2. Grab the OF1 stock ROM in zip format on muniz_ri’s thread and move it to the phone’s storage. You can choose between Odexed or Deodexed ROM, choose as your needs.
  3. Open the FlashFire app from the app drawer, grant superuser request and agree to the terms and conditions.
  4. Still in the app, tap the plus (+) button and choose “Flash ZIP or OTA” menu. Leave the “Auto-mount” option unchecked, then tap the checkmark icon to continue. Before flashing, tap the EverRoot menu, and ensure every option remains unchecked.
  5. When ready, just hit the lightening icon in the below to start flashing.
  6. Once flashing done, let the phone upgrading the systems, you will stuck on Verizon Logo for about 5 minutes (Odex ROM) or 10-15 minutes (Deodex ROM).


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10 Responses

  1. Sonndamo
    September 2, 2015 at 5:27 PMReply

    This is not a root guide. Your directions give no clarity on getting root only that already rooted devices can get cool features out of flashfire.

  2. RalphieN
    September 4, 2015 at 1:12 PMReply

    can you please explain how to just root the phone, if it has already been updated to I545VRUGOF1….
    I just want to root the phone now that I did the OTA update

    • WayneM
      September 14, 2015 at 6:10 PMReply

      I totally agree… I did the update also and just wanna know how to root it from here… almost all my apps are toot based apps and not being rooted is driving me crazy and to top it off my battery life sucks ass without some of my apps

  3. Nopskies
    September 14, 2015 at 2:33 PMReply

    How do we root the non-rooted device?

  4. Omega
    September 24, 2015 at 2:47 AMReply

    As of 9-24-2015 there is no root method for the OF1 update. Your out of luck and at this point in time I do not see the S4 (545 verizon version) ever being rootable again. You are also not able to downgrade to the OC1 update at least for the Verizon version. You will most likely soft brick the phone and get a message upon boot saying the update failed and you need to use the update repair software which is only found on the phone.

    Since the phone is soft bricked, the PC will not see it to access said software and Verizon has no link on their site to download the software. After trying to downgrade to OC1, it took me 5 hours to get my phone working again. Based on various forum posts, I’ve concluded the only phone at this time that can still be rooted is the Google Nexus. hmmm, go figure.

    At least for Verizon phones, it looks to be that the OF1 update they forced onto customers for all Samsung phones S4, S5, S6 are no longer rootable. I am very disguised with Verizon right now over this. If I were to go and buy a new S6 from them right now out right for $600 and it has the OF1 update I have no way to root the phone. To me it seems they have no right to do this if I got the phone with no contract. It’s our choice to root the phone, not theirs…

    • Alex
      December 13, 2015 at 10:09 PMReply

      How did you manage to fix it??? Ive been looking everywhere. id really appreciate help

  5. Emo.rocker3
    January 31, 2016 at 7:53 PMReply


    Listen guys I think this could be the only chance of rooting s4 i545 0f1 I have tried every single root king/towel root etc etc on pc and phone too but all failed because the main reason is that when ever u try to root it verifies the build/kernel number and when it sees that it’s 0f1 It stops working because the new most stable update of lollipop with the build number 0f1 doesn’t comes with a unlocked boot loader so that u can install other stuffs just like. I phone specially in version and some other verient it would be a waste of time to try any other methos except this let me explain it did u know a while ago after the release of lollipop some apps were only supported by the 5.0 lollipop or higher when people lowere then lollipop like jelly bean and kitkat tried to download it from play store it said that this vision is not compatible with your devise because the play store decetected the 4.0 version just like king root does with build and kernel and stops but some geeks found the way to solve that by changing the build and krnel to latest version like 5.0 without even effecting system what if we could do the same with the build and kernel member to the previous working one like 0C1 then I think king root and other apps might get to working the reference how to change the kernel and build with out effecting the system is just go to YouTube and type ( fix “your device isn’t compatible with this version” ) this will give u the reference for that location and app to change the build and kernel number I haven’t tried it yet but if u r on that please reply me but hurry I think this can really work just need some one to test that but hurry… and please do inform back if it really works…c:

    OR the other last and only option left would be to downgrade your version s4 i545 kernel = ….. 0F1 to 0C1 kitkat Which is now posible with Oden and then root it then turn it back to lollipop 5.0.1 kernel = …. 0F1 the most stable kernel version out there hope that helped u all …. c: Thanks

  6. Justmetlb
    December 8, 2016 at 10:00 PMReply

    I will attest to the fact that I did a lot of research to try rooting and load TWRP on to my S4 (it had KitKat then) – I FAILED!. I thought I totally bricked by S4, after using ODIN, a kernal and then stock ROM – no go. I kept trying even though nothing made a difference (though it looked hopeful a couple times – it was actually making things worse). I did find something that would root the KitKat version. So, I did brick the S4 eventually, and thought all was lost. I then did more research and found that Verizon recently released a complete version of ‘VZW Software Upgrade Assistant’ that does not require a working phone to load it up to a PC. (Something that was not possible before). The VZW has a repair assistant also. You install VZW on your PC, plug in the phone (PC/USB), click some buttons to repair the phone, where it analyzes the state of your phone, and eventually starts loading the 1.5gb image of Android 5.0.1 (which you have no choice on). Many many hours later your phone is back, clear of all your stuff obviously, but it works (where you can start over). Since this is Verizon software, they know how to restock your phone from nothing (whereas ODIN did not).
    I have since at least rooted my S4 (with the OF1 Android 5.0.1) using KingRoot. (The PC software is in Chinese, but there is a website that shows you the steps based on the Chinese symbols – follow them exactly). You will need to load the Playstore KingRoot apk, and also download to PC the KingRoot-PC. I happily have root, but there is NO way to get into the bootloader to do a custom recovery/rom loader – Verizon has it locked up tighter than a drum now with OF1. Why Verizon cares on a older/mothballed phone what we do with it is beyond me.

    • Ron H
      December 22, 2016 at 8:31 AMReply

      Can I do the root you did and use my Verizon Galaxy S4 with a T-Mobile sim and get everything to be functional? If so, can you direct me to the site that shows the steps based on the Chinese symbols? Or will this not work on my Verizon OF1? Please let me know.

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