Hi,
I've succeeded in installing this LineageOS 15.1 on my SGP611 also thanks to the quoted message. Nevertheless, it contains some inaccuracies reported in its "Issue 2" I wish to fix with this reply. I started from a full stock configuration, therefore I am going to post the whole procedure in the following. Skip "Step 1" if you already have an unlocked device.
Step 1: Unlock Bootloader
It comprises of 2 main components, which are comprehensively detailed in
this website. More specifically:
- Obtain your unlock code here. Just select your device at the end of the page and follow the instructions.
- Unlock the bootloader following the instructions in here. It goes through installation of ADB/Fastboot and USB driver, things that are also reported somewhere else in the forum.
I want to report a problem I had at #2 of the former list, it might be helpful for some user. Once my device was in
fastboot mode, the command
fastboot devices gave no output. This should be related to the USB drivers. I solved by following
this. This is NOT MANDATORY, try only if you experience my same problem.
Reboot your device and load the files required for the following steps.
Step 2: Install TWRP
- Download the latest TWRP for scorpion_windy, which is 3.0.2-0 from here. Contrarily to what reported in the quoted message, this is going to work. See "Step 3".
- Flash the TWRP in the boot partition, as reported in the quoted message:
Code:
fastboot flash boot twrp-3.0.2-0-scorpion_windy.img
Step 3: Edit LineageOS zip file
Trying to flash the lineage15.1-20190922-unofficial-z3tc.zip indeed outputs ERROR 7 in TWRP, failing the installation. I solved this issue following what reported
here. There you find an explanation of the problem as well.
This solves the issue reported in the quoted message, which was solved mentioning the use of TWRP 3.3.0-0 which actually does not exist for this device.
Step 3: Final installation process
- Reboot to recovery mode:
- Flash the edited .zip file of LineageOS
- Flash GApps and SuperSU as reported in the quoted message
Step 4: Fix Recovery partition
After OS installation, you will not be able to reach the recovery again, as it was installed in the boot partition. Hence, reboot in fastboot mode, connect to the computer and run:
Code:
fastboot flash recovery twrp-3.0.2-0-scorpion_windy.img
Step 5: Enjoy!
I hope this message will be helpful. Thanks to all the contributors.