[Sony Xperia XZ ROMs, Kernels, Recoveries, & Other ] FroschDev:
So, status update. My phone doesnt boot and charge now. Until today I found that my phone needed multiple attempts to boot correctly, it even displayed distorted images at times, as if the CPU was just running crazy, delivering the LCD controller some random values once and then dying, leaving the weird distorted pattern on the screen, which forced me to reboot by POWER+VOL_UP. But as mentioned, it booted eventually after a couple tries.

Now my xperia doesnt want to charge over usb, it just tries to boot, failing a couple of times until it finally gets to the boot animation, then shutting down just before switching from BOOT_LOOP animation to BOOT_DONE animation. It even tries to automatically boot on various wall chargers, even those that dont even have the data pins connected anywhere(Not even the resistor indicating fast charge) it just seems to ignore the fact that I am supplying 5V@1A to it.

I'll keep trying to perform different reboots, maybe try and charge in flashmode on my laptop or something. I'll let you know then I found a solution.

[EDIT] Update time!

I got the phone to charge by using my Nintendo Switch charger, it took about 20min to get to 1% tho. The charging on this rom is extremelly unreliable. Now I am at 4%. I know that sometimes rebooting can solve the issue but I'm kind of afraid I get a bootloop again. I know this thread is mostly a compile of what sony writes, but these are problems I'm having and suggestions to solve some of them:

- Camera ISO problem. The cameras ISO doesnt work properly, scenes are always too dark when not in manual mode. This is a problem with apps like whatsapp and snapchat where you cant change the iso yourself.

- Overheating and lag. This is one of the best known issued the 820 has. The chip is really fast and powerful, but as it runs hot it throttles a lot. I suggest to disable some cores, undervolt(if thats possible on android) or underclock them. My theory is that by underclocking or disabling cores, even tho the system will be slower in heavy duty tasks like rendering or processing, the lightweight stuff like browsing and chatting should be faster, a underclocked cpu is still way better than a overheated one. When fixing this the governor can be changed as well, so video works as is.

- Charging/USB driver. This is the biggest issue I can see right now I almost thought my phone was done for when I couldn't get it to boot or charge in over 2h

- I don't know if it's just me, but my fingerprint ready is not working. At all. No idea why, in the first 5-10 minutes it worked, I got to register my thumb, I could unlock the device, then it just stopped working completelly.

- Battery life is terrible. This is probably because the CPU is not optimized yet and pretty much just dissipates the batterys energy into the air as it heats up the device.

I hope someone of you is able to at least confirm all the issued I'm having, I know I don't have the right to demand anything, I am just giving feedback. Looking forward to what this rom is becoming!

PS: Just a quick question, is it possible to simulate the DRM keys in oreo in case my TA backup got corrupted? I really miss my cameras performance and would love to see it in Oreo as it was with the original firmware. Cameras are always a pretty terrible thing in custom roms and the camera in this rom performs really good actually, theres only the ISO and low light issue :/