06-04-2015 11:47 AM
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  1. Neongreeen64's Avatar
    Neongreeen64
    Is it possible to unlock the bootloader of a Verizon galaxy s4 running kitkat (4.4.2)? I already have the phone rooted and wanted to try out a rom like cyanogenmod.

    Posted via Android Central App
    07-18-2014 10:30 AM
  2. Turu's Avatar
    Turu
    Hey I'm in the same boat.

    I'm on Baseband version i545vrufnc5 .

    I'm new to this and trying to figure out how it all works, but does that mean every verizon samsung galaxy s4 that's running kit kat 4.4.2 is on i545vrufnc5 ?

    I'm rooted, but when I try to install a recovery program I get the message "System Software not authorized by verizon wireless is installed" upon rebooting into recovery mode.
    From what I've read I can use Odin to install an older kernel, prior to the Knox app and locked bootloader. Then I can install recovery program and the latest cyanogenmod.

    Can anyone confirm this? Hate to have a bricked phone.
    07-20-2014 04:17 PM
  3. ickycoolboy1's Avatar
    ickycoolboy1
    You can not downgrade to mdk (the unlock able bootloader) once you have upgraded to nc5 you are pretty much stuck. (you COULD experiment with Jtag though I have really no idea what it is or how it works. I have heard that you could unlock bootloaders with it though.)

    Sent from my SCH-I545 using AC Forums mobile app
    07-20-2014 09:56 PM
  4. staxx Robinson's Avatar
    staxx Robinson
    Originally Posted by Turu
    Hey I'm in the same boat.

    I'm on Baseband version i545vrufnc5 .

    I'm new to this and trying to figure out how it all works, but does that mean every verizon samsung galaxy s4 that's running kit kat 4.4.2 is on i545vrufnc5 ?

    I'm rooted, but when I try to install a recovery program I get the message "System Software not authorized by verizon wireless is installed" upon rebooting into recovery mode.
    From what I've read I can use Odin to install an older kernel, prior to the Knox app and locked bootloader. Then I can install recovery program and the latest cyanogenmod.

    Can anyone confirm this? Hate to have a bricked phone.
    12-21-2014 01:48 AM
  5. staxx Robinson's Avatar
    staxx Robinson
    Verizon has already updated to in 45 run nk1 and to my knowledge the older kernel won't work either
    12-21-2014 01:50 AM
  6. SlimDroid's Avatar
    SlimDroid
    Depending on how you updated your phone. Some "true rooting" cannot be accomplished without returning the phone to its original programming. Kies updates can be evil this way. You can use Odin to bring the phone back to its original software version, then try again.

    SlimDroid
    01-02-2015 08:04 PM
  7. SlimDroid's Avatar
    SlimDroid
    You may try unlocking the phone first before taking drastic measures. Phone companies can be a pain to rid of if your not willing to reflash your phone with a new ROM

    SlimDroid
    01-02-2015 08:06 PM
  8. blackjeff's Avatar
    blackjeff
    how to unlock samsung galaxy s4 verizon
    06-04-2015 11:47 AM
« Samsung S4 (Three UK) - Lollipop | Help S4 I9500 soft bricked and can't recover with ODIN »

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