[HD2 Android Q&A, Help & Troubleshooting and Genera] memin1857:
17/9/2010 EDIT: With a lot of feedback from this thread and other threads, it has come out that, waking up the phone with the YES/CALL/SEND green button is BETTER than waking up with the NO/END/POWER red button for SOD reasons.

----

Hello guys,

You probably know I am actively in the Android HD2 porting community.

I am having the strangest touch screen problem. I am really experienced into winmo and android stuff. Please read carefully.There is a surprise at the end.

BOTH under Android AND Winmo my touchscreen works just fine after bootup.

It first started like this:

At first my touchscreen stopped responding when I hold no button to make a reboot/power off. I thought it was from the usual Android touch screen freeze related to g sensor. Then I realized that it was the same in Winmo! Holding no button ALSO caused touch screen to die even under winmo.

Then it started loosing touch after sleeping. My touch is ALWAYS working when I boot winmo OR android and works for hours if not put to sleep. But it stops working after putting it to sleep.

Frustrated,

I restored with spb backup. Didn't work.

I reflashed my winmo rom. Didn't work.

I made a hard reset. Didn't work.

I removed sd card. Didn't work.

I removed sim card. Didn't work.

I changed the date. Didn't work. (this was a strange fix for some blackberries)

I flashed original 1.66 Turkish rom, 2.07 original old radio, even original 1.42 SPL which makes this hd2 fully stock the day I bought it. Even made another hard reset. Still didn't work!

By this time it's obvious this is a hardware problem and needs warranty.

OK

THEN I FOUND THE STRANGEST THING:

If I wake up the phone with ANY hard button other than the NO/HANGUP button touch screen WORKS!!!

(

Yes/Send button under Android

)

BELIEVE ME, I HAVE TRIED FLASHING REFLASHING RESETTING AND TESTED

100 TIMES

and YES it is ALWAYS the same. This is not a random thing.

If I wake up my phone with No button under ANDROID OR WINMO, my touch doesn't work. But if I wake up with back button windows button home button yes button, the phone wakes up properly AND touch works. Android of course doesn't work with the original radio, so I wasn't launching Android with the last test.

HOW IS THIS POSSIBLE AT ALL?? It looks like hardware fault, but touch loss IS related to NO button!

I will send my phone to warranty anyway but it will happen after the holiday (not before mid september)

IF ANYONE have an issue like this, PLEASE post.

I just want to make sure this issue isn't related to Android porting.

If it is, this might be an important info. Maybe it may help devs fixing the general touch screen and wake up problems. Also everybody TRY waking up Android with the yes/send button to see if it helps with your wake up or sod issues and provide feedback. Also it may help with the phone not responding after hangup in Android. There is something hardware going at the background with the no/hangup button. I know this issue is hardware fault but still may shed light to our problems with touch screen and wake up issues. Maybe there is something hardware or firmware inside the phone waking up the digitizer. I know that hangup/no/end button is internally different than the other buttons, something like it shares the power button function that is usually on the top of the device with other htc devices. (Mine is a european hd2 and the hangup button is not red) I also wasn't using an overclocking kernel.

Please think twice before posting, and don't post anything useless. I am absolutely no noob, you can search my previous 200+ posts. I wouldn't post anything unless I am definitely sure. And I have a feeling that this thread has the potential to help or make something come out. If it doesn't, no harm done.