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Samsung Exhibit II 4G

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Samsung Exhibit II 4G
Phone
Samsung Exhibit II 4G.jpg
Model Number: SGH-T679
Specification
Manufacturer: Samsung Samsung-icon.png
Release Date: October, 2011
Operating System: Android Android-icon.jpg
Dimensions: 115.5 x 59.8 x 11.5 mm
Weight: 3.9 oz
Chipset: 1.0 GHz Scorpion processor, Adreno 205 GPU, Qualcomm MSM8255 Snapdragon
Display: 3.7" WVGA 480x800 SC-LCD
Networks: GSM Quadband; 850/900/1800/1900MHz UMTS Tri-band:1700/1200, 1900,850MHz, Bluetooth 3.0, GPS
Wifi: Not Known
Bluetooth: 3.0
NFC: Not Known
GPS: yes
Video out: Not Known
Camera: 3MP Auto-Focus
Secondary Camera: VGA
Internal Memory: 512MB RAM, 2GB ROM
Memory Card: up to 32GB micro SD
Battery: Li-ion 1500 mAh Talk time: 2G/803 min, 3G/393 min. Standby time: 2G/750 hrs, 3G/576 hrs.
Additional Features: GP2A Proximity Sensor, AK8975 Magnetic Field Sensor, AK8975 Orientation sensor, BMA222 Acceleration Sensor, GP2A Light Sensor, Gravity Sensor, Rotation Vector Sensor



Contents

Introduction

The Samsung Exhibit II 4G (codename: Ancora) is sold in the United States from T-Mobile on both its contract and Monthly4G prepaid plans. The Exhibit II 4G is the succesor to the original Samsung Exhibit & is a variant of the Samsung Galaxy W. It is a good example of a mid-range Android phone. Under the hood it features a Qualcomm Snapdragon with 512 MB of RAM. It's not a dual core but most non-intensive apps run fine without live wallpapers running. The Exhibit II 4G has a 3.2 MP camera which isn't too great compared to the similar Galaxy W's 5 MP camera. However unlike most lower end phones the Exhibit II 4G does have a LED camera light as well as a front facing camera for photos and video chat. The cameras are great for Skype, but don't expect to take any great photos with this phone. Like a lot of other Samsung phones, this phone seems to be built from the cheapest plastic money can buy. I recommend buying a case and a good screen protector. The Exhibit II 4G has an unusual screen size of 3.7 inches, sitting in between the more common sizes of 4 inches and 3.5 inches. With the standard HDPI resolution of 800x400 it looks okay with 16 million color support but the screen doesn't look so great when compared side by side with high end phones such as the G2x. The Exhibit II 4G has a total internal storage size of 4 GB but most of that is used by the System ROM and preinstalled applications.

Rooting

You can root the Samsung Exhibit II using SuperOneClick & ZergRush.

An alternate (and easier) method of rooting is to flash jocala's custom kernel. Flashing this kernel also installs Superuser, busybox & ClockworkMod.

Safe To Remove

  • AnalogClock.apk
  • Browser.apk(Only if you use an alternative browser i.e. Opera Mini, Dolphin Browser/HD, Firefox)
  • Dlna.apk
  • DownloadProviderUI.apk
  • DualClock.apk
  • DualClock.apk
  • IQ-tmobile-release-signed-zipaligned-v1.1....
  • JobManager.apk
  • KiesAir.apk
  • MobileBackup-unsigned_v3.3.02.apk
  • MyFiles.apk(Only if you have an alternative File Browser i.e. Astro File Manager. Note: If you remove MyFiles.apk, you will be getting an error when assigning ringtone using 'Select sound from My files')
  • SamsungWidget_Program...
  • Swype.apk
  • TetheringManager2.apk(Only if you don't use T-Mo's tethering service)
  • TouchWizCalendar.apk
  • TouchWizCalculator.apk
  • TwCalendarAppWidget.apk
  • VideoPlayer.apk(Only if you have an alternative video player i.e. Mx Video Player)
  • VoiceRecorder.apk
  • WiFi-Calling.apk(If you don't use it)
  • ZinioSettingsProvider.v2.03.3331.TMobile....
  • sihome-signed-tmo-android-8.apk
  • talkback.apk
  • tmobile_m4m_3_0_15.signed...
  • vvm-signed.apk
  • 411 & More
  • AllShare
  • Bejeweled 2
  • Bonus Apps
  • Calculator (you will need to get another one if you use it)
  • Home screen tips
  • Kies air
  • LiveWallpapersPicker
  • Lookout Anti-Virus
  • Media hub
  • My Account
  • More for Me
  • News and Weather widget
  • T-Mobile TV HD
  • Telenav GPS Navigator
  • Tetris
  • TwWallpaperChooser (Don't remove if you like those stock wallpaper apps)
  • Video Chat
  • Visual Voicemail
  • Yelp
  • Zinio Reader

Recovery

ClockworkMod (by Koush) is an alternate recovery for Android phones. It allows you to make nandroid backups of your Exhibit, as well as offering utilities to troubleshoot problems.

Download standalone ClockworkMod 5.5.0.4 HERE

It is also available as part of jocala's custom kernel HERE

You'll also find it in most Exhibit II custom ROMs.

Both ClockworkMod and the custom kernel/ClockworkMod combo can be flashed from Samsung's stock recovery. If you are flashing from stock, be sure to copy the zip file to your internal sdcard. Samsung's recovery will not detect the external card.

Both archives above contain a file called "recovery.img." This recovery.img file is actually a combined kernel and root file system with the program /sbin/recovery being the actual ClockworkMod program. If you like, you can also extract the recovery.img file from either of the two zip archives above and flash via the command line.

(command line can be a rooted adb shell or a rooted terminal on your device)

cd /path/to/image

dd if=./recovery.img of=/dev/block/mmcblk0p13

From a rooted terminal, "reboot recovery" to start ClockworkMod. From your computer the command "adb reboot recovery" works too.

To start Recovery (ClockworkMod) from power-off.: Press & hold Vol-Up, then press & hold Power. Shortly after the plain white Samsung logo appears, release both buttons. ClockworkMod should start after the color Samsung/T-Mobile Exhibit II logo.

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

Flash Back to Stock

Flash to stock via ClockworkMod

Download T679.flash2.stock.zip HERE - Copy to sdcard. Boot into ClockworkMod. Flash file. That's it, phone is stock. Wipe Data/Cache/Dalvik prior to reboot.

Flash to stock via Odin

Thanks to stubbakatt for the original back to stock directions.

DISCLAIMERS:

  • This works with Windows XP/Vista/7. It also works with Win7 running via VMWare Fusion on Macs running Snow Leopard and Lion.

FILES NEEDED:

  • Samsung USB Drivers: click here - if you're rooted/rommed, you probably already have these
  • Samsung Drivers for "Download" mode: click here OR click here - if phone is not recognized by PC when in Download mode


STEPS:

Odin does not reset /data, so do a factory reset - this will wipe out the /data partition,leaving you ready to flash back to stock. If you don't do a reset, your stock install most likely will not work.

  • Make sure the computer recognizes your phone with the drivers above (again, this is probably already the case if you're having to do this!)
  • Unzip the t679-stock.zip to wherever you want - preferably somewhere easy to get to (desktop?).
  • Power down your phone. Once it's off, hold down the volume-down button and press power. Hold both down until you see the "Warning!!" message with the yellow triangle at the bottom. Once you see that, hit the volume-up button. This puts you into Odin/download mode.
  • Plug your phone into your computer.
  • Open "Odin Multi Downloader v4.43.exe". Once it opens, the Message window at the bottom left should read "Added!!!" and "Detected!!!".
  • Make sure all four of the Options are checked (One Package, Auto Reboot, Protect OPS, Reset Time [mine's set to 300 seconds]). I don't know if this is all necessary, but at the very least One Package and Auto Reboot appear to be.
  • On the right side, click the "OPS" button, and select/open the Ancora.ops file.
  • At the bottom, click the "One Package" button, and select/open the "T679UVKJ1_T679TMBKJ1_T679UVKJ1_HOME.tar.md5" file.
  • The Message window should do an md5 check and end with "Check MD5... ok". If it doesn't, try redownloading again - don't want to flash a corrupt file!
  • If all of that is good to go, then select the "Start" button.
  • Your mileage will vary, but it should take around 5 minutes, then the phone reboots itself into recovery mode (the little white box with the progress bar), then about 30 seconds after that and the phone fully reboots. Don't unplug it yet. After a few minutes (actually, the 300 seconds set in the "reset time" in Odin), it will say "Pass!!!" and you're good to go and can unplug the phone.


  • You should now have a phone that's identical to when you pulled it out of the box.

swap sd and external_sd

Eriks Pigoznis for the Galaxy W, and jliles @ xda for cm9 on Exhibit II edited vold.fstab to swap sd & external_sd and it works great. Here are flashable zips that should work on any stockish Exhibit II and cm9 beta. This swaps the mount points for /sdcard and /external_sd. It also adds a command /system/xbin/swapsd to your system.

Code:

 swapsd
 Usage: swapsd { default | external } swap mount point for sd

If you want to switch back and forth, execute "swapsd <parameter>" from a root console, then reboot. YMMV,Not responsible,etc,etc

swapsd.01.zip For stock

cm9.sdswap.01.zip For cm9

Custom ROMS

[CWM] AOKP For Samsung Exhibit II by KemikalElite

[CWM] KEMIUI by KemikalElite

[CWM] CyanogenMod 9 Beta by Jocala

[CWM] Peach Sunrise by Jocala

[CWM] RebelROM by bpear96

[CWM] XquiziT by Wildchild

Custom Kernels

Jocala's custom kernel for the Samsung Exhibit II is pre-rooted, meaning once this kernel is flashed, your Exhibit II is fully rooted. Fully compatible with stock, for directions and a full list of features, please click HERE

Links

Samsung Exhibit II General Discussion Thread

Samsung Exhibit II Dev Thread

Exhibit II/CM9 IRC channel

IRC: irc.geekshed.net channel #exhibit2dev

Samsung Exhibit II @ Ultimate Phone Guide

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