s3 gt-i9300: Accidentally deleted OS
I was attempting to flash cm 12.1 on my rooted gs3 via TWRP, and got up to the step of wiping the entire system. Somewhere during the process I realized that somehow I'd screwed up. I then tried to restore my backup. It was only after this did I realize that somehow, in my rush to flash a custom rom for the first time, I had idiotically forgotten to backup my data to micro sd card prior (meaning I only checked the options of backing up boot, system, and cache). I then tried to reboot back to the system, only to find that I had deleted my damn OS. Yet I proceeded to reboot, and then realized that I was stuck in a boot loop and couldn't boot into custom recovery, or into recovery mode at all. I was able to boot into download mode, however. Other than that, though, there was nothing I could do. This series of stupid decisions by me is resulting in my only phone being unusable, and I have no idea how to fix it. As I've stated it's my first time flashing a custom rom, and although I wouldn't like to consider myself a noob at this kind of thing, having read many tutorials and prepared for months, I really am. Please help, I don't even know where to start in fixing this.
I was attempting to flash cm 12.1 on my rooted gs3 via TWRP, and got up to the step of wiping the entire system. Somewhere during the process I realized that somehow I'd screwed up. I then tried to restore my backup. It was only after this did I realize that somehow, in my rush to flash a custom rom for the first time, I had idiotically forgotten to backup my data to micro sd card prior (meaning I only checked the options of backing up boot, system, and cache). I then tried to reboot back to the system, only to find that I had deleted my damn OS. Yet I proceeded to reboot, and then realized that I was stuck in a boot loop and couldn't boot into custom recovery, or into recovery mode at all. I was able to boot into download mode, however. Other than that, though, there was nothing I could do. This series of stupid decisions by me is resulting in my only phone being unusable, and I have no idea how to fix it. As I've stated it's my first time flashing a custom rom, and although I wouldn't like to consider myself a noob at this kind of thing, having read many tutorials and prepared for months, I really am. Please help, I don't even know where to start in fixing this.
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