[ROM][Beta][CM9][9/28/12] Galaxy Exhibit 4G

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Senior Member
Oct 16, 2010
Just wanted to thank everyone here and jocala and all of that for this rom. I didn't make the jump to CM10, been running one of the September builds and am now about to retire this phone. My other two Android phones were the Kyocera Zio and the Huawei Ascend II, obviously I have not enjoyed the high-end Android experience as of yet. But this ROM gave me a taste of that experience and I ran it as my daily driver for months and months.

So thanks again. Now, it's Nexus 4 time!


Senior Member
Apr 2, 2012


Senior Member
Dec 2, 2012
So is the links on the first page still the ones to go for? I'm a bit new to the Android hacking scene, I'm just wanting a ROM that will give me 4.0x.

Thanks for the help.


Senior Member
May 30, 2009
North Carolina
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New member
Feb 19, 2013
So, uh, unfortunately I uninstalled my TMobile Wifi Calling that comes with this ROM. I thought Google Voice natively used wifi. Yes, I'm retarded.

Is there a way I can reinstall the app?


Senior Member
Dec 9, 2011
ASUS ROG Phone 5
Edit: Crap, could have sworn this was the off topic thread.

Sent from my SGH-T679 using xda app-developers app


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Senior Member
Jun 27, 2012
Now that's some backup time for non use.

Sent from my SGH-T679 using xda premium

hey i installed this rom and is ok, but i miss the delete frequent called list
of android 2.3

i know that CM7 got that but , is there a version for the exhibit 4g ?
i want to down grade from CM9 to CM7 if i can

i tried apps from the playstore like history eraser and stuff but nothing worked.
cant make the frequent called list to go on CM9

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    This is a port of CyanogenMod 9 (Android 4.0.x) for the Samsung Exhibit II 4G. It is very much a work-in-progress. There are no guarantees whatsoever that it will work to your requirements or that it will progress beyond its current state. Major kudos to Arco68 for his help in getting this going; you would not have this ROM except for him.

    Here is a video by dennis96411, showing CM9 on the Exhibit II

    What seems to work
    Bluetooth audio
    Amazon Market
    HW accelerated display
    Headphone detection
    Microphone detection
    T-Mobile Wifi-calling (works for most)
    init.d support
    CIFS networking
    Camera (Stock Camera only, 3rd-Party apps mostly don't work)
    Haptic keyboard feedback
    Streaming video

    What does not work (NO ETAs)
    911 Emergency Calls
    Torch app (check thread for alternatives)

    CM9 for the Galaxy Exhibit is NOT vulnerable to USSD dialer exploits.

    Vanishing text
    The content of text buffers sometimes disappear when touched (messages in: gmail,yahoo,fb). Wiping cache has fixed this for some. Long-press of back key and restarting app for others.

    Facebook sync is not included in AOSP. 3rd-party apps are available in the market.

    3g vs 4g
    Cyanogen Mod views UMTS as 3g whereas the stock Exhibit II rom views it as 4g. Even though you see 3g on your status bar, your actual speed should be unchanged from stock.

    Changing band preference
    In dialer, enter Service Mode via
    You should see:
    [1] Automatic
    [2] WCDMA Band Preference
    [3] GSM Band Preference

    To force WCDMA only, tap option 2, on next screen tap option 6 - WCDMA All

    To force GSM only, tap option 3, on next screen tap option 7 - GSM All

    You can use the back button to verify your settings took effect. To exit, tap menu button, quit. This change does not survive a reboot. If you use this frequently, save it as a contact.

    WIFI Problems
    Wifi is working fine for almost everyone using CyanogenMod 9 Galaxy Exhibit build (and also for the Galaxy W). If you are one of the very few having difficulties, a possible fix has been posted that may help: WiFix Manager.

    Installation requires a CWM-based recovery. Download/update Galaxy Exhibit Custom CWM Recovery here.

    Updating CyanogenMod 9
    Once you have a stable install you're happy with you can apply future updates w/o any wiping. If for some reason a wipe is required, I'll make that known.

    Download CM9 Beta
    Core2idiot's CM9 Nightlies

    Google Apps
    Google Apps gapps-ics-20120429-signed.zip .... Mirror

    Kernel sources

    Copy the downloaded cm9 beta and gapps zip files to your internal or removable sdcard.

    Back up your data.

    Start Custom Recovery (cwm): Press & hold Vol-Up, then press & hold Power. Shortly after the plain white Samsung logo appears, release both buttons. Recovery should start after the color Samsung/T-Mobile Exhibit logo.

    CWM Keys:
    Home key = enter
    Back key = back
    VolUp/Dwn = highlight choice

    If installing over a non-CM9 ROM you must do a ROMwipe before installing.

    Select "Install zip from sdcard." Choose the cm9 beta zip from sdcard or external sdcard, depending on where you placed it. Highlight the cm9 beta zip file then press Home. Confirm the choice and installation will proceed. You may also install Google Apps (gapps) at this time. Gapps does not include all Google apps. Those not included are available from the market.

    Please DO NOT PM me with support questions! Post them in this thread!

    I'm moving to a Galaxy S2, so my work on CM9 is going to draw to a close. If you have a build environment running and would be interested in continuing development for the community, please PM me. It's been a fun ride and I'd like to thank everyone for their support.
    Compile CM9

    Portions copied from Motorola Droid X CyanogenMod Wiki

    Thanks to Arco68 for hand-holding and patches. Any mistakes are mine.

    These instructions assume that you will be using an Ubuntu 10.10 Linux system (or a close relation, Debian, Linux Mint,etc). Setting up a Linux partition or creating a Linux VM are beyond the scope of this post.

    First, Install the Android SDK

    Next, install the linux build packages required. I install using apt-get:

    For 32-bit & 64-bit systems
    apt-get install git-core gnupg flex bison gperf libsdl1.2-dev libesd0-dev libwxgtk2.6-dev squashfs-tools build-essential zip curl libncurses5-dev zlib1g-dev sun-java6-jdk pngcrush schedtool

    For 64-bit only systems
    apt-get install g++-multilib lib32z1-dev lib32ncurses5-dev lib32readline5-dev gcc-4.3-multilib g++-4.3-multilib

    NOTE: gcc-4.3-multilib g++-4.3-multilib is no longer available for Ubuntu 11.04 64-bit, but should still build without issue.
    NOTE: On Ubuntu 10.10, and variants, you need to enable the partner repository to install sun-java6-jdk:

    add-apt-repository "deb http://archive.canonical.com/ maverick partner"

    NOTE: sun-java6-jdk <> open-java6-jdk!
    These instructions assume an "android" directory located in your home

    Install repo
    mkdir ~/bin
    curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > ~/bin/repo 
    chmod a+x ~/bin/repo
    Download CM9 source
    mkdir ~/android/system
    cd ~/android/system
    repo init -u git://github.com/CyanogenMod/android.git -b ics
    repo sync -j16
    This can take hours. When done, ~/android/system should be at least 11Gb in size.

    cd ~/android/system/frameworks/base
    git remote add arco git://github.com/arco/android_frameworks_base.git
    git fetch arco
    Download kernel source
    mkdir -p ~/android/system/kernel/samsung/ancora_tmo
    cd ~/android/system/kernel/samsung/ancora_tmo
    git init
    git pull https://github.com/arco/samsung-kernel-msm7x30.git
    Repeat the pull command occasionally to obtain updates.
    Download ancora_tmo device directory
    mkdir -p ~/android/system/device/samsung/ancora_tmo
    cd ~/android/system/device/samsung/ancora_tmo
    git init
    git pull git://github.com/Jocala/device.ancora_tmo.ics.git
    Repeat the pull command occasionally to obtain updates.
    Download ancora_tmo vendor directory
    mkdir -p ~/android/system/vendor/samsung/ancora_tmo
    cd ~/android/system/vendor/samsung/ancora_tmo
    git init
    git pull git://github.com/Jocala/vendor.ancora_tmo.ics.git
    Repeat the pull command occasionally to obtain updates.
    Set up prebuilts:
    cd ~/android/system
    Applying cherry-picks
    You'll need to gain at least a rudimentary knowledge of
    using git and github. Teaching this is beyond the scope
    of this howto. Cherry-picks must be re-applied after each
    repo sync.As time goes by they also get merged, so it may be that some
    cherry-picks are no longer required. You can check their status here.

    Attached to this post is a script (reposync.txt) that will do a repo
    sync then apply current cherry-picks. I keep it in my
    android/system directory. Rename and chmod 0755.

    Set up your environment & build

    . build/envsetup.sh
    lunch cm_ancora_tmo-userdebug
    brunch ancora_tmo
    Building takes at least an hour. If everything worked, you should have a
    out/target/product/ancora_tmo/cm-9-SOMEDATE-UNOFFICIAL-ancora_tmo.zip file



    If you have room on your build system you can speed
    your builds up considerably by using ccache. ccache is a compiler
    cache. It speeds up re-compilation of C/C++ code by caching
    previous compiles and detecting when the same compile is
    being done again.

    Install it with apt-get: sudo apt-get ccache

    Set environment vars for Android use:
    (I put these exports in my .bashrc)
    export USE_CCACHE=1
    export NDK_CCACHE=ccache
    Set a cache size of 10G for optimal results:

    ccache -M 10G
    Check the status of your cache with the command:
    ccache -s 
    cache directory                 /home/jocala/.ccache
    cache hit                         106673
    cache miss                         18379
    called for link                     3758
    preprocessor error                     5
    not a C/C++ file                    4425
    unsupported compiler option          678
    no input file                       4565
    files in cache                     36758
    cache size                           3.2 Gbytes
    max cache size                      10.0 Gbytes
    This is true. My phone always says 3G, but switches to H when downloading, then goes back to 3G.

    Also, even though he's now ignored, Nightlies aren't forced updates. You can flash over the update whenever YOU want. They're just always supplied on a nightly basis in case there have been any changes to the repos. Since it's CM9 there probably won't be many new changes, but its still offered...

    Sent from my SGH-T679 using xda app-developers app

    It's always hilarious when a newcomer shows up who absolutely knows it all, refuting everything we only think we know about our phones.

    I think the idea of nightlies is great, I never had the resources. I've replaced the OPs download link with a link to Core2Idiot's nightly page.

    On another note, I've decided to keep my Exhibit as a dev device, so I'm going to continue busting my head with 911 for a while at least. I'll post if I have any breakthroughs.