DESCRIPTION

ROM JIAYU G3 – ROM Android 4.1.2

ROM size: 202MB
Android version: 4.1.2
Updated :2013-01-01

Fix:
– Fix single card dual signal XX problem. – Fix ringtones or vibration invalid after shutdown. – Repair on 3G network speed limit problems. – Fix WIFI signal improved a lot. – Fix camera the painting color cast problem. . Optimization of the front and rear camera clarity.

These quality rice native updates.
- Add some utility software – to change the boot animation – minor optimization of the following is a known bug: – photographic front black screen, it is estimated that the new drive according – breathing lights still unavailable, behind ready Repair – currently only found two bugs experience the new version 4.1.2 of feelings: – boot prompted wizard – the process of using smooth not cards – Fix a built-in external storage – according to the update of high quality rice, this 4.1.2 will be very low power consumption – camera Rear photographic effect very good pre-black, the only uncomfortable. – Bluetooth, wifi, updated no problem – wifi little effect to enhance the feel good – all the basic services, to meet the general needs of worthy brush into because kernel modifications, this version of the kernel 4.1M, subsequent updates picture to appreciate: everyone in and other official 4.1, like early experience can brush into this version update, the previous version of the bug fixes.

Brush process :

Unpacked driver installation InstallDriver.exe
To unpack SP_Flash_Tool_.zip run Flash_tool.exe
Select a the in MT6577_Android_scatter_emmc.txt in Recovery with Flashtools
Click Flash_tool.exe interface Firmware-> Upgrade

Phone after taking the battery in put something
Connect the data cable
Brush finished with green circles appears

Then deducted batteries back into the system
Key plus the power button on the phone off the volume
To enter the selection mode
Select key on the volume
Select the first recovery volume button to confirm
Enter QingTian key board recovery

or

Install MobileUncle Tools avaialble on market
Download: recovery_cwm5.5.0.4_ENG.img and put in the root of SD carrd
Open MobileUncle Tools
Click on update Recovery
Choose the recovery_cwm5.5.0.4_ENG.img and follow the instructions
And now you have a english recovery !

Root G3 :

1- Connect your g3 activating USB debugging mode
2- Run the runme.bat in any case the file that ends is .bat
3- select option 1 and leave work
your G3 will reboot is normal

Look this video.

https://www.youtube.com/watch?v=fmVAQJnW10g

BUG :
Warning! This ROM Really swaps the two SIM Cards! SIM1 becomes SIM2 and SIM2 becomes SIM1!
(thx orionbg)

※Please make a backup of your device before installing or updating ROM