Hi, I like to install /e/ on my SGS3 I9300 and startet with the attempt to install twrp recovery.
We are talking about an I9300 with Android 4.3 in factory reset, no root, completely original. Developer options are activated, but OEM unlock option is not visible. USB debugging checked.
When connected to a Windows 7 machine, the S3 is visible in adb. But when I try “reboot bootloader”, the phone reboots the Android 4.3. instead of reboot in download mode.
The same behaviour when I try this on a linux mint machine.
After manually activated download mode I tried “fastboot flash recovery twrp.img”, it says “waiting for device” and nothing else happens.
I tried to connect the phone with Odin 3.04 or 3.13 on a Windows 7 machine, Odin gets no connection to the phone while in download mode.
I tried heimdall (1.4.0) “print-pit” in manually activated download mode, it says “Failed to detect compatible download-mode device”.
It seems, the OEM Lock is the problem, but how to unlock it? I cant find any other way. The OEM unlock option is not visible in the developers options.
??? Any ideas?
Thank you for any help