[Xperia Z5 Premium Android Development] Vetkor:
WEEK 2

So here is my second feedback. Hope this is helpfull.

All major issues in my previous post are still there.

Brightness:

I have only experienced brightness to 50% minor issue. Which is fixed by rebooting. I feel it is probably because of the sensor trying to adapt the screen light and then something happens wrong and no way to make it as bright like 100%.

SD card:

When you have android 7.1.2 stock and then install this rom LOS 18.1. You may get "SD card corrupt", you just need to format (make sure you have a backup of your SD card before). Then it works great.

By the way, you can go back to TWRP to check if it is really corrupt or not.

MHL:

I discovered one thing. The MHL feature doesn't work. When you plug your MHL adapter the phone freezes and screen doesn't turn off. When you plug in and plug out the power supply, the phone detects that it is charging...

The only way to recover the phone is to force shut down (POWER + VOLUME UP) and start it back.

Video unstabilities:

You may experience sometimes, the videos readen on Twitter and other apps can sometimes be freezing. I believe it is because of HEAT or/and Wifi receiver is receiving very low even on a fast internet connection.

NFC:

It seems not working. I tried to read my Credit bank cards. It should of say "couldn't read". But says nothing. I think it doesn't work.

Hotspot WIFI:

I just checked and it turns off right after turning ON (so it doesn't work).

And it shows "Error" as mentioned by @OskarPLyt under "Hotspot WIFI".

It still turn off WIFI when enabling WIFI tethering (normal behavior).

But internet tethering works over USB and bluetooth.

TWRP ?

Another minor issue (probably not because of LOS 18.1): The screen light is sometimes having troubles. Like the screen flashes really quick during some seconds after having opened the screen (by booting or unlocking). Also it happens even with stock OS + TWRP. I believe it is the TWRP faults. Because i never experience it when i have recovery partition empty (when you flash your device back to stock OS via flashtool) and havent installed TWRP via fastboot. Sometimes it happens on SONY boot splashscreen.

Little recap:​

Major issues:

> Front cam: video recording is super laggy

> Back cam: zoom makes the live view of camera lagging a lot (for picture or video)

> Heat: I dont know if it is because of the current hot summer season that the phone heats easier.

By the way, you will feel more oftenly that the phone is hot in your hands and in your pocket, but compared to stock you can still use all features on the phone without a message "the phone is hot, you cannot use this app".

--> Hotspot WIFI

--> NFC doesn't work

Minor issues:

> battery drain: I feel like the device lose battery quite faster than before (with a new battery) while using it.

But when you dont use it, you experience the opposite, very less battery draining when not used.

> Little unstabilities when device is hot (notification bar scrolling is sometimes laggy)

> Sometimes i experience that the screen brightness goes down to 50% (so the screen look darker from 100%) but the settings shows that you are at 100% and you cannot play with it to refresh.This setting works only under 50%, higher it becomes useless. To fix it, you need to reboot.

> Sometimes you can experience the audio recorder not to work. To fix it, you need to reboot.

> Sometimes you can see a toast message "Error I/O.....". To fix it, you need to reboot.

--> MHL doesn't work (not comonly used feature so it is minor)

Will i continue using this rom even with these issues ?​

Yes, since i've found all alternatives of each daily apps. Issues aren't stopping me from anything. We should all learn to live without phones by the way... Get de-intoxicated of bling bling apps. Your life will get better. Most issues are on extra features for my use cases.