Hello all, I've done a lot of search on Google about my problem but find nothing so I hope someone can help me.
I own a rooted S3 (Bell i747). I installed some stock ROM using ODIN. As I didnt find any ODIN compatible ROM, I tryed to install CM12.1 using the following procedure:
1.You have to download the CM 12.1 custom ROM file on your computer; also, you have to download Google Apps package – you can get the Android 5.1 Lollipop update from here while the Google Apps package can be downloaded from this page.
2.Save both files on your computer but don’t unzip the packages.
3.Connect your AT&T Galaxy S3 with your PC by plugging in the USB cable and then transfer the downloaded files on your phone’s SD card.
4.Remove the USB cord and power off your phone before doing anything else.
5.Good; now enter recovery mode on your Android device.
6.Remember to make a hard reset and to clear cache before loading the ROM – select “wipe data factory reset” followed by “wipe cache partition” and by “wipe dalvik cache”.
7.Then, from main menu of recovery select “install zip from SD card” and “choose zip from SD card”.
8.Pick the Android 5.1 Lollipop firmware file and install CM12.1 ROM on your AT&T Samsung Galaxy S3.
9.Reapply the last step and flash Google Apps package.
10.When done, select “reboot system now” and enjoy.
During the process, the system verify the package and I had the following error
E:FAILED TO VERIFY CHOLE-FILE SIGNATURE
E: SIGNATURE VERIFICATION FAIL
I downloaded the ROM direct on the Cyanogen site (//download.cyanogenmod.org/?device=d2att)
What's wrong
TKS!
I own a rooted S3 (Bell i747). I installed some stock ROM using ODIN. As I didnt find any ODIN compatible ROM, I tryed to install CM12.1 using the following procedure:
1.You have to download the CM 12.1 custom ROM file on your computer; also, you have to download Google Apps package – you can get the Android 5.1 Lollipop update from here while the Google Apps package can be downloaded from this page.
2.Save both files on your computer but don’t unzip the packages.
3.Connect your AT&T Galaxy S3 with your PC by plugging in the USB cable and then transfer the downloaded files on your phone’s SD card.
4.Remove the USB cord and power off your phone before doing anything else.
5.Good; now enter recovery mode on your Android device.
6.Remember to make a hard reset and to clear cache before loading the ROM – select “wipe data factory reset” followed by “wipe cache partition” and by “wipe dalvik cache”.
7.Then, from main menu of recovery select “install zip from SD card” and “choose zip from SD card”.
8.Pick the Android 5.1 Lollipop firmware file and install CM12.1 ROM on your AT&T Samsung Galaxy S3.
9.Reapply the last step and flash Google Apps package.
10.When done, select “reboot system now” and enjoy.
During the process, the system verify the package and I had the following error
E:FAILED TO VERIFY CHOLE-FILE SIGNATURE
E: SIGNATURE VERIFICATION FAIL
I downloaded the ROM direct on the Cyanogen site (//download.cyanogenmod.org/?device=d2att)
What's wrong
TKS!
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