won't power up after 2 year sleep

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metropical

Senior Member
Sep 23, 2011
1,075
48
New York
I used it as back up phone perhaps 2 yrs ago. Charged before I placed it at rest.
Can't get it to power up. Tried holding power only, 3 mins; power & Vol Up 3 mins; power & Vol down 3mins; power & both up/down 3mins all connected to wall power with HTC cable.
Any other ideas?
 

blackhawk

Senior Member
Jun 23, 2020
10,415
4,139
Samsung Galaxy Note 10+
I used it as back up phone perhaps 2 yrs ago. Charged before I placed it at rest.
Can't get it to power up. Tried holding power only, 3 mins; power & Vol Up 3 mins; power & Vol down 3mins; power & both up/down 3mins all connected to wall power with HTC cable.
Any other ideas?
Replace battery. The battery's voltage dropped below its onboard controller's critical limit and it permanently disabled it.
 

metropical

Senior Member
Sep 23, 2011
1,075
48
New York
I just did my HTC U11, but that wasn't too bad. I'll have to watch some vids again.
Favorite phone design ever. Built like proverbial brick ... house.
I'd bet it'd be pretty slow now. But a good back up.
 

blackhawk

Senior Member
Jun 23, 2020
10,415
4,139
Samsung Galaxy Note 10+
Just be careful not to use any solvents including isopropyl alcohol as even a small amount can poison the LCD. These displays are vented on the sides and not sealed.