Friday, December 11, 2015

Install cyanogenmod custom rom on samsung galaxy grand 2 SM-G7102

android lollipop 5.1.1 is now available for samsung galaxy grand 2 SM-G7102 via cyanogenmod custom rom thanks to the developer "mukulsoni" on xda.This is an unofficial cyanogenmod rom for grand 2 which is stable and you can use it as a daily driver for sure.
There are lot of variants of samsung galaxy grand 2 and this rom which we have here is only flash able on SM-G7102 variant which has a device code name as "ms013gxx".
Check  model number of galaxy grand 2 before proceeding further.Go to settings and then to about device.You can find your model number there.Confirm that you are using "SM-G7102".

Cyanogenmod custom rom samsung galaxy grand 2 SM-G7102:

Install Cyanogenmod rom samsung galaxy grand 2 SM-G7102

Cyanogenmod custom rom :
Cyanogenmod is one of the best custom roms available in android development ecosystem.They support lot of devices.This rom is based on android open source project with lot of added features.IT uses android 5.1.1 lollipop as base for now and will be updated to later versions of android when available.
Cyanogenmod custom rom samsung galaxy grand 2 SM-G7102

Though samsung galaxy grand 2 sm-g7102 is not officially supported yet but have it for us thanks to developer mukulsoni of xda.All basic feature like calling,messages,audio,video,camera are working fine.
Features:
  • Theme engine: Theme engine is from the cyanogenmod custom rom which basically changes the look user interface from lock screen  to ring tones all the way up to boot animations.The speciality of the theme engine is the ability to choose individual elements of every theme you have installed.So you like the ring tons and wallpapers of one theme and icons of other theme then you can have them at a time.Just open the theme chooser and you will understand how to do it.
    theme engine rom  galaxy grand 2 SM-G7102 smg7102
  • Performance control:A default CPU manager app to control frequencies and governors . You can adjust cpu frequencies and also set them on boot too.

  • Trebuchet: This is the default launcher that ships with cyanogenmod rom.But if you flash gapps then you might loose this.It doesn't have too many features like nova or other launchers but its simple and fast.
  • Software Updates: Cyanogenmod rom is usually available in three types one s nightlies which gets updated with new features every night and are quite stable for daily usage.second one is the snapchat which is monthly build version which will be stable version and other one is the release candidate.Some times nightlies are considered must stable than the snapshots. As of now we have android lollipop 5.1.1  in form on CM 12.1
  • Status bar Tweaks:Status bar has lot of tweaks which include a brightness slider.Slide in status bar to adjust brightness of the screen.Double tap on status bar to sleep device and also network speed indicator for on going traffic info.
    traffic indicator cm 12.1 rom feature grand 2 smg7102
  • If you are missing root functionality or all your root apps are not working properly then to developer settings and check if root permissions are set properly.
These are some of the features of cyanogenmod cm 12.1 custom rom and you can explore rest of the features by flashing this rom on your samung galaxy grand 2 sm-g7102.
prerequisites:
  • Backup:Backup all your data which includes apps,contacts,photos videos etc everything to computer or any cloud storage as flashing Cyanogenmod custom ROM on samsung galaxy grand 2 smg7102 will erase all your data.
  • Battery: Charge your galaxy grand 2 sm-g7102 to at least 90% so that you wont encounter any battery related issues while flashing this.
  • Backup Efs partitions: Backup all your efs partition of your samsung galaxy grand 2 on current ROM.If you loose signal you can just restore it back.
  • Lock Gps:Lock your gps position on your current rom.If you use this a lot then you have to lock it so that it could work even after flashing other roms. It's easy to lock gps .Turn on gps in settings and find your current location in google maps and now now have locked on to gps.
  • Custom recovery: You need a custom recovery like twrp installed on your grand 2 .Without it you can not flash roms at all.
  • DownloadsCyanogenmod rom for ms013g  and google apps. Transfer them to internal storage of your device. 

Flash Cyanogenmod Cm 12.1  rom using Twrp recovery: 

  1. Download Cyanogenmod for galaxygrand 2 (cm-12.1-20150614-UNOFFICIAL-ms013g-ver4_2.zip) and Gapps transfer it to sdcard or internal storage of device.
  2. Power of the device completely.
  3. Press volume up,power button and home key simultaneously and once you see boot loader screen release buttons.
  4. Using volume down as a navigation button move to recovery and click on power button to confirm action.
  5. Once you are in twrp backup existing ROM first.It might about 5 minutes for backup to complete.
  6. Wipe data,cache and dalvik cache.You may not need to wipe system.
  7. Flash ROM and then gapps.
  8. Reboot to system.Wait at least 15 minutes for initial boot to complete and once done you can explore ROM features.
  9. If rom fails to boot Remove battery and put it back.Reboot it to recovery and this wipe system too and flash rom again.
Since this is only meant for SM-G7102 (ms013g) don't flash this on other variants as you might end up  bricking it.By following above procedure you will be able to install android lollipop based cyanogenmod custom rom on your samsung galaxy grand 2 sm-g7102 ms013g.