[One (M8) Q&A, Help & Troubleshooting] FabianX2:
Soft- or Hardware Defect M8

Hey Guys,

I´m no English native so please be patient. I`m although no noob with Android and hardware but can`t figure out some strange defects on my M8. Hope for help!

So here is the story: A week ago I woke up late. My Phone was stuck in Bootloader and I couldn’t select any option. Only my Volume Up Button did change the marking

of options. Strangely it did so in the wrong way. Means Volume Up changed up to down. Pushing the Power Button shortly to select an option didn`t do a thing at all.

But pushing it for long did what it should: It shut the Phone down. As I restarted it I again got stuck in bootloader. By trying out different ways I managed to somehow

boot in safe mode. It took me some time to figure out that my Volume Down Button was stuck and was therefore the reason for the strange booting procedure.

It´ll get more strange from here on so please remember: Bootloader, only Volume Up Button working but in the wrong way, Power Button only reacts to long periods

of pushing, probably Volume Down Button stuck.

In safe mode the Power Button worked fine again and did respond to all kinds of pushes as it should. Volume down did not do a thing (As expected). Theory seems

confirmed. To rule out software issues I did a full reset in TWRP which I had to start from cmd on my desktop as my phone still did not take any selections in bootloader.

And additionally flashed a new rom (Skydragon GPE 5). Didn´t change my problem at all so I went to bed. My phone was nearly powered out and I forgot to plug it.

In the morning I found it dead so I plugged it in and booted it up. Strange thing: It booted completely normal. All Buttons were working. Yes, even the Power Down

Button. Now I realized that Wi-Fi isn`t working which could be because of my old firmware and the new rom. So I started to learn how to update the firmware - which

took me 15 minutes. As I got back to my Phone to get it started the Volume Button was stuck again. Now it finally has to be some hardware defect right? I found the

spare parts on Ebay and wanted to give it one last shot before I placed the order. So risked to get stuck in safe mode or bootloder (again) and pushed the Power

Button down hard. But surprise my phone decided to open a new chapter of strangeness: Nothing happened at all. Now the Power Button wasn`t working any more.

No reaction to short pushes and what’s completely new, no reaction to long pushes too. So I avoided restarts form that point on and used my phone for the last days

in that condition. Decided I could life without two of the three hardware buttons But as I could not flash the firmware without restarting the phone no Wi-Fi starts

to bother.

To be honest: I don`t know what to do! I don`t want to waste money on spear parts if there’s the option of some really strange software failure. A defect over night

without any physical forces aside from really high room temperatures seems unlikely to me. Even more if you count in the strange healing over night and the factor

that it not only broke down again but although spread it´s desesse to the power button. I`m really out! Any Ideas?