Hey everyone,
as this is a noob-friendly thread, I hope I'm in the right spot
I will get my hands on a stock ROM Galaxy S4 LTE (GT-I9506) soon (I don't have it at hand right now).
As the stock ROM is very old and lots of newer apps don't even bother starting anymore, I want to flash a custom ROM (
LineageOS 18.1). I did read through the entire thread and I have flashed other phones previously, still I have some specific questions as I haven't flashed any Samsung devices so far (I'll try to be as short and specific as possible):
- Is there no need to unlock the bootloader of the GT-I9506 before flashing (anything)? I can't seem to find any instructions, so that's my assumption.
- I will be using ODIN 3.10.7 from here, is that ok?
- Is it correct to flash TWRP via the AP button in ODIN?
- Is it correct to flash bootloader/modem via the BL button in ODIN?
- When should I flash modem/bootloader? Together with TWRP? The instructions don't mention this, here it is done simultaneously however.
- Is the modem/bootloader file mentioned in the collection thread the only one for the GT-I9506 or do I have to backup the phone's specific modem/bootloader? Can I just flash modem/bootloaders back and forth like recoveries (in case something goes wrong)? Anything specific to check/look out for (besides model number)?
- I will take a full backup using TWRP ASAP. Will it contain the modem/bootloader or do I have to restore it separately (with the file from the collection or the dedicated backup respectively)?
- Is OpenGapps ARM 11 pico a proper version?
ADB and drivers are installed properly on my PC, I will check ODIN detects the device properly when I physically have it with me.
Thanks for the help and best regards.