9 Jun 2015

Install cyanogenmod cm 12.1 custom rom on dual sim samsung galaxy mega 5.8 Gt-I9152

Update your dual Sim samsung galaxy mega 5.8 GT-I9152 to android lollipop via cyanogenmod cm 12.1 custom rom.Samsung galalxy mega is huge affordable phablet from samsung.They released this for those who cant afford high end note series but want those features on their phone.Though samsung didn't provide lollipop update for mega 5.8 you can still update it to latest version using cyanogenmod custom after market firmware.
This ROM which we are going to flash on samsung Galaxy mega 5.8 is unofficial cyanogenmod cm 12.1 with most of working features.Before proceeding further make sure that you are using a dual Sim variant of this device and also check your mobile model number.To check your phone model number go to settings and then to about device.You will have your device model number, confirm it as "GT-I9152".
prerequisites:
  • Backup:Backup all your data which includes apps,contacts,photos videos etc everything to computer or any cloud storage as flashing this cm 12.1 samsung galaxy mega 5.8 Gt-I9152 will erase all your data.
  • Battery: Charge your galaxy mega Gt-I9152 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 mega 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.Its 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 installed on your galaxy mega .Without it you can not flash roms at all.
  • DownloadsDownload cm12.1 mega 5.8  rom and google apps if needed.Transfer them to internal storage.

Install cyanogenmod custom rom on galaxy mega 5.8 GT-I9152:

cyanogenmod custom rom on galaxy mega 5.8 GT-I9152

About Cyanogenmod rom for gt-i9152 :
Cyanogenmod is one of the best custom roms available in android development ecosystem.They support lot of devices and only which has official kernel sources.This rom is based on android open source project with lot of added features. One which we have here is unofficial cyanogenmod rom for galaxy mega 5.8 GT-I9152.
all basic functionalities like camera,phone calls,data,bluetoth,wifi are working just fine and you can use it as a daily driver for sure.Since we have dual Sims developer confirmed that both sims are working fine.
Features of cm 12.1:
  • 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.

  • 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 is 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. 
  • 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.

Flash Cyanogenmod rom using Twrp recovery: 

  1. Download cyanogenmod rom 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.
After flashing ROM if you don't find super user in app drawer or none of your root apps don't work then go to setting and then to about device.You will find build number.Tap on it continuously until you see a message you are now a developer.Go back and you will find developer options.Click on it and and scroll down ,you will find option to set root permissions.

This is a simple tutorial guiding you to install cyanogenmod custom rom on samung galaxy mega 5.8 Gt-I9152..As this ROM is meant only for this variant of  don't try to flash it on other variants like on carrier variants as it might cause lot of errors or even brick it.
Install cyanogenmod cm 12.1 custom rom on dual sim samsung galaxy mega 5.8 Gt-I9152 Reviewed by Radha Krishna on 20:48 Rating: 5 Update your dual Sim samsung galaxy mega 5.8 GT-I9152 to android lollipop via cyanogenmod cm 12.1 c...

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