First, I want to start at the very root of my problem, the heat.
I am living in Vietnam, which is located in South East Asia, and it is very hot at this time of year.
A week ago, when I suddenly realized that I really need video recording on my work, long one, Z5 is a problem.
P/S: My Z5 model is E6653
Every time I turn on the video record, even Full HD with 30fps or a 4K video, it just turn out to be stayed for nearly one minute and then, it automatically shut the app down due to device temperature. But I swear, every time it did that, I touch my phone's back and it was not as hot as when I surf Chrome for a hour. And it even didn't shut down Chrome or my phone!
If I use third party camera, it will automatically shut down the device. Ha ha, very funny Sony, very funny!
Then, a necessity of having another ROM appeared in my head, and then problem start.
At first, I read on some forums, that Android 7.1.2( my latest update on Z5 also) cause the problem of heating because it has ore services running than Marshmallow 6. Then, I used Flashtool, got Marshmallow ROM from Xperia Firm and flash. It worked PERFECTLY, but the heat problem is still there.
Then, I searched for other ROMs located on the Internet, and I chose three of them.
First is the ViperOS from rootmygalaxy.
Second is LineOS on rootmygalaxy also.
The third one is a self customised from wccftech.
When I started, I soon found out that link to download LineOS which can get my Z5 to Android 8 has gone. Whoosh, it is no where to be seen on androidhost.
Then I started with ViperOS.
As always, get into Developer mode on my phone in Settings, allow USB Debugging and Unlock Bootloader.
Then after installed a bunch of drivers for my phone, flashmode, fastboot,... I finally installed Recovery Mode on my Z5, and unlocked bootloader through tutorial from Sony.
ViperOS I used at first is based on Android 7, so I got a Gapps pack for Android 7.
After steps which is not necessary to write down here, I got ViperOS for my phone.
I booted perfectly, a very good ROM, but when I tried to turn on the camera for video recording, it just shut down my device.
I turned it on again, and it happened the same.
So, I did all the steps above, AGAIN, for the customize ROM.
The problem is, when it installing Gapps, which is for Android 6 at the time, I felt asleep.
So I left my phone there, charging, installing Gapps in Recovery mode on the screen, and I went to sleep.
I'm very sorry if someone scold at me or tell me stupid, but I really just thought will take a nap for a while then wake up. But it ended up I slept for a whole night, means I left my phone there 4-5 hours.
At first, I saw my Z5 is still tied up with the cable, with the red LED is on.
I pulled out the cable, the LED is off. I powered on my phone like I always do, nothing happened!!
I put my cable in, no LED is blinked!
Through some research and destroy, somehow I destroy my Z5 back, but nothing on the motherboard is harmed.
After another tons of drivers, my Z5 appear as Qualcomm 9008 when I plug it in my computer now. But that's all. Nothing can be done with it. No flashing, no fixing, it's just dead like that.
I post here not to really find any solutions for my stupid fault, but I really want to know if I can get my Xperia Z5 alive again. Thanks for anyone read since this line. Even you don't do anything for me, I really appreciate!