According to Team Android, this new CM12 custom
ROM is developed by a senior XDA Developers forum
member going by the moniker, mukulsoni and khan umer. This
238MB custom ROM is based on the AOSP (Android
Open Source Project) 5.0.1 Lollipop and it is an
experimental Alpha CM12 version, so some issues
are yet to be fixed.
We advise our readers go through the tutorial
article, before going ahead with the custom ROM
installation.
Features of CyanogenMod [Unofficial] Android
5.0.1 Lollipop CM12 custom ROM which are said
to be functional on Samsung Galaxy Grand 2 (SM-
G7102):
GPS
Bluetooth
Sound
SD Card mounting
Vibration
Sensors
RIL (Reading SIM1 and searching networks but not
connecting)
Features that are needed to be fixed include:
Wi-Fi
Calls, SMS
Camera
Prerequisites (things to remember before
installing Custom ROM)
Though installing custom ROM improves the
device's performance and UI experiences, it makes
the company warranty void and they will no longer
be liable to provide updates in future [users can
restore warranty by flashing the device with stock-
ROM].
This new CyanogenMod CM12 series firmware has
to be installed on the Samsung Galaxy Grand 2
(SM-G7102) dual-SIM model only; if tried on other
devices, it might get bricked [To check your
device model: Go to Settings >> About phone
>> model number]
Installation of custom ROM requires clearing of
memory in the smartphone, so make sure to back
all the data by installing Clockwork Mod (CWM)
Recovery/ TWRP in the smartphone.
Make sure the device is rooted before going
forward for custom ROM installation.
Users make sure they have installed USB drivers
on the PC, or else your smartphone (Samsung
Galaxy Grand 2) will not be recognised by the
computer.
Also make sure your device has more than 80%
battery, or else there is chance of smartphone
getting temporarily bricked if the installation
process is interrupted midway.
[ Disclaimer: This procedure is very technical and
should be performed by a person with sound
knowledge of rooting (or manual software
installation) Android devices. If the step-by-step
installation process is not followed properly, there
are chances of the smartphone getting bricked or
being permanently irreparable. International
Business Times, India Edition cannot be held
responsible for any damage or claims from readers
if the procedure does not yield the required results
or if the smartphone is bricked. Hence, users are
advised to proceed with caution.]
Tutorial: Step-by-step installation procedure of
CyanogenMod [Unofficial] Android 5.0.1 Lollipop
CM12 custom ROM on Samsung Galaxy Grand 2
(SM-G7102) -
Step 1: Download CyanogenMod [Unofficial]
Android 5.0.1 Lollipop CM12 custom firmware
( HERE ) and Google Apps ( HERE /HERE ) in to your
PC.
Step 2: Connect Samsung Galaxy Grand SM-G7102 to
PC via USB cord.
[Note: Before plugging the phone to the computer,
be sure that you have installed USB driver software,
if not, click HERE to download the firmware]
Step 3: Then, place Android Lollipop zip file into
the phone's SD card memory. [Note: Users are
advised to paste the .zip file in SD card root, not in
any other folder.]
[Note: Before installing the custom software, be
sure that the device must have been rooted and has
installed ClockworkMod Recovery tool.]
Step 4: Now, turn off the device and disconnect
from the PC.
Step 5: Then perform the regular Recovery Mode
sortie by press holding 'Volume (up)', 'Home' and
'Power' buttons.
Step 6: After entering the RECOVERY mode, clear
the phone memory, by choosing 'wipe data/factory
reset' option.
[Note: use 'Volume' keys to navigate and 'Power'
button to select options, while operating under
Recovery Mode]
Step 7: Now, clear the cache memory by selecting
'wipe cache partition'
Step 8: Then to go back to ClockworkMod recovery,
and select 'advanced' and tap 'wipe dalvik
cache' [Note: This step is optional, but many
recommend this procedure so that user will not
face boot loops or any other errors in the middle of
custom ROM installation]
Step 9: Again come back to main recovery screen
and then tap 'install zip from SD card'
Step 10: Then tap 'choose zip from sdcard' and go
to Android 5.0.1 Lollipop ROM .zip file in SD card
and enter the installation process. [Note: use
'Volume' keys to navigate and 'Power' button to
select options]
Step 11: Once done with the installation process,
navigate to '+++++Go Back+++++' and re-start the
device by opting 'reboot system now' seen in the
recovery menu.
Now, your device (Samsung Galaxy Grand 2 ) will
take a few minutes to complete the booting process.
Users then head to Settings >> select About phone
to confirm the installation of CyanogenMod
[Unofficial] Android 5.0.1 Lollipop CM12 custom
ROM.
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