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[BASEBAND] Flashable basebands for LG VS920

Discussion in 'Android Devices' started by tdm, Jan 12, 2013.

  1. tdm

    tdm Android Expert
    Thread Starter


    WARNING: These ZIP files are for the VS920 only! They do not verify your device model, and they will most likely brick any other device!

    This is a collection of flashable basebands for the LG VS920 (Spectrum).

    To install, place the zip on your phone's SD card, and install it from recovery in the same way you would install a ROM. You do not need to wipe/clear anything before or after installing these, and they will not alter your currently installed ROM at all.


    VS920 ZV4 md5=9c57dcb79306f200808e6e2bdf225cb0

    VS920 ZV6 md5=25afe10e698e2ec3dee31f457e8975f6

    VS920 ZV7 md5=aa682d095e067a435a6fd955729ec7a8

    VS920 ZV8 md5=f0c2a8ae4f9db4c6f2b563472719973a


    Q: What do these do and why would I want to install them?

    A:This is firmware for your cell radio/modem. In theory, the latest version should provide the best cell radio reception. Usually this is the case, but sometimes older basebands work better. This is why old versions are made available.

    Q: Does my ROM install a baseband?

    A: No. ROMs do not touch the baseband or affect it in any way. They are entirely independent.

    Q: Does this affect roaming?

    A: No, that is mainly controlled by your PRL, which is updated via a special program. I will not discuss PRL updates here in this post or in this thread since it is off topic.


    drumist @ xda for the collection of P930 basebands, which gave me this idea.
    death2all110 for supplying ZV6 and ZV7 images.
    Yonix for supplying ZV8 images.

  2. blueracer90

    blueracer90 Well-Known Member

    So this will get us back to complete stock with Root?
  3. tdm

    tdm Android Expert
    Thread Starter

    This is a baseband (modem firmware). Nothing more and nothing less.

    The only thing it should change is cell reception. Hopefully the latest baseband will have the best reception, but that is not always the case. YMMV and all that.

    If you want "stock firmware", flash the official .cab file. There are other threads in this section with detailed instructions on how to do that.
  4. intheair86

    intheair86 Newbie

    Will this resolve the roaming issue in AOKP 41?
  5. reeseboy

    reeseboy Android Enthusiast

    I don't think so. Roaming in AOKP41 is a result of a bad/wrong eri.xml I believe, which this doesn't touch. You aren't actually roaming.
    tdm likes this.
  6. sosaudio1

    sosaudio1 Android Enthusiast

    This is a test build....understood.....is there a way back if we don't like the performance of the new baseband. Or is there a way to create a zip that we can flash to go back?
  7. tdm

    tdm Android Expert
    Thread Starter

    You can backup your current baseband files like this:

    dd if=/dev/block/mmcblk0p1 of=/sdcard/firmware.img bs=4096

    dd if=/dev/block/mmcblk0p14 of=/sdcard/baseband.img bs=4096

    I'd you are using adb, prepend "adb shell" to those commands.

    Restoring should be obvious, just swap if= and of= in those commands.

    You should find that your files match md5 with the files inside the zip that corresponds to your current baseband. If not, I'd like to know.
  8. sosaudio1

    sosaudio1 Android Enthusiast

    Cool can this be done inside the phone using terminal?
  9. brianmaedche

    brianmaedche Well-Known Member

    Yep doing it now
    sosaudio1 likes this.
  10. sosaudio1

    sosaudio1 Android Enthusiast

    Done here too but with 2%batt gonna wait to apply baseband until morning.
  11. tdm

    tdm Android Expert
    Thread Starter

    I have a phone that was on zv4. It has never taken the ics update or run a stock ics rom. And has not had vzw service since I owned it.

    Installed zv7 baseband and the phone still boots and runs. Still doesn't have service lol. So I'm removing the untested warning.
    cac2us, admn81, brianmaedche and 2 others like this.
  12. admn81

    admn81 Android Enthusiast

    Do you know what the main differences are in the baseband btwn CM and Stock ICS? If that makes sense?
  13. tdm

    tdm Android Expert
    Thread Starter

    This is the stock baseband, same as you would get if you flashed a cab or took an ota update.

    CM does not make a baseband. The baseband is proprietary firmware and sources for it are kept locked up tight.
    admn81 likes this.
  14. Kintwofan

    Kintwofan Newbie

    On gonna flash to v6 tomorrow am for you. Is that output I got last time sufficient again?
  15. tdm

    tdm Android Expert
    Thread Starter

    Just a copy of the two partitions, that's all I need.
  16. tdm

    tdm Android Expert
    Thread Starter

    Still waiting for ZV6 images... are you still planning to upload those?
  17. death2all110

    death2all110 Android Expert

    I'm flashing right now
  18. 1linuxfreak

    1linuxfreak Well-Known Member

    Just a friendly query. We needed a baseband flash for the OG Droid because we would get advanced leaks of them, but what purpose does it serve here, you do included the latest basebnad in your builds right?
    Just curious.
  19. death2all110

    death2all110 Android Expert

    CM10/AOKP don't touch the baseband. The purpose of this is for you to be able to upgrade to the V7 baseband or re-flash an old baseband if the new one isnt working well.
  20. death2all110

    death2all110 Android Expert

    tdm likes this.
  21. tdm

    tdm Android Expert
    Thread Starter

    All updated thanks!
  22. IMUcarmen

    IMUcarmen Android Expert

  23. death2all110

    death2all110 Android Expert

    Why'd you bump this?
  24. IMUcarmen

    IMUcarmen Android Expert

LG Spectrum Forum

The LG Spectrum release date was January 2012. Features and Specs include a 4.5" inch screen, 8MP camera, 1GB RAM, Snapdragon S3 processor, and 1830mAh battery.

January 2012
Release Date
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