[Sony Xperia XZ1 Compact Questions & Answers] SunJu22:
Hello everyone,

I have to say I am completely lost regarding the whole rooting process for the XZ1C. I usually manage to get where I want just by carefully reading the forums, but with this device, I feel overwhelmed by information. And I sometimes feel like what I am reading contradicts what I though I understood from previous reads...

I will try to sum up what I know so far.

First of all, I have a just-out-of-the-box Sony model G8441 with firmware 47.1.A.12.179 / Oreo 8.0.0 (never been connected to the outside world yet), and I want to properly root the device and install TWRP with no loss of feature.

What I think I understand:

To root, I first need to unlock the bootloader, which seems to be a trivial operation. However, this will break some functionalities due to DRM keys being erased. Once it is done, there is no way, ever, to get them back. There are however ways to "trick" DRM-related functionalities into believing DRM keys are still there.

Alternatively, there seems to be a way to backup the DRM keys prior to unlocking the BL, and this backup can somehow be reused and injected back into the unlocked device. If true, then this would certainly be a preferable method than the previous one, which would then be obsolete. However, it obviously doesn't look obsolete when I read the related topics, so I must be missing something...

Another thing I noted (but do not quite understand): There are ROMs for this device that "include" a DRM fix.

Last important thing I read: there is a paid "do-it-all" tool which takes my locked device and, with one click, makes it unlocked - rooted - DRM-fixed - TWRP-enabled. Now that sounds really good! Maybe too good?

As far as i know (but I learn new stuff every day on this topic) this DRM stuff is the main difficulty here. I understand that the rest of the process (root + TWRP) will be much simpler (although I'm old-school and completly missed all this magisk trend...!)

What I don't understand:

I read that some people downgrade to Oreo to be able to root properly, and at the same time, I read that Pie removed the restrictions on unlocked bootloader. So I still have no idea if I should connect and receive Sony updates, or avoid them.

Another thing I don't get, is how many ways do we have to root this thing? In the past, I was used to see, for a specific device, always one major and widly used rooting method. Here I fail to identify it...

What I think I will do:

1. Backup TA partition with j4nn's tool. This will probably imply flashing an older firmware right? Is there any link that could help me with this flashing process? (I only know Odin - did I mention old-school?) I saw this page for generic sony Z devices, but the thread is from 2013 and now closed. Is it still up-to-date or is there a newer thread?

2. Unlock bootloader and restore TA partition.

3. Wait for Sony updates? Or should I first hide unlock status?

3bis. Alternaltively to waiting for updates, maybe I can just flash the latest build? (47.2.A.8.24 if I am not mistaken)

4. Flash modpunk's TWRP.

5. Flash janjan's Boot.img to get root functionalities?

Alternaltively to all the above (except maybe step 1 that I will probably do in any case), buy the paid all-in-one tool (Xperifix), plug, click and wait... But will I really end up the same as with the manual way?

I saw a few other methods in the forums but it seems my brain is currently refusing to bring them back...

That's all I have right now. I would really appreciate if you guys could share some insight and tell me what you think about this, whether there are missing steps, useless steps, incorrectly ordered steps, silly steps, or if I'm just completely wrong about the whole thing.

Feel free also to correct me on the assumptions I made at the beginning.

Thank you very much for reading this repulsive piece of text.