USGlobalSat GPS Forums

Please login or register.

Login with username, password and session length
Advanced search  

News:

Pages: 1 [2] 3   Go Down

Author Topic: [Help] black spots on LCD  (Read 9541 times)

TWG_TECH8

  • Administrator
  • Hero Member
  • *****
  • Karma: 12
  • Offline Offline
  • Posts: 2184
Re: [Help] black spots on LCD
« Reply #15 on: November 17, 2010, 08:35:06 pm »

Hello,

I'm waiting for the GH-505 i ordered and just found this forum.

It seems the latest firmware release fixes the display problem, or is it just a temporary fix to extend the display life?
When i get my GH-505, should i immediatly update the firmware to prevent the display problem?
Will i need to return it to exhange the display when the new model is available?

Thank you

Dear customer,

Thanks for using our product.
You can get it to experience first. And should update firmware before getting use.
If you are not satisify, you can contact dealer.

Sincerely,

Geoffrey
Logged

xonxoff

  • Newbie
  • Karma: 0
  • Offline Offline
  • Posts: 2
Re: [Help] black spots on LCD
« Reply #16 on: December 09, 2010, 11:14:53 am »

Hi,

Just started to have same issues (dead pixels) - although I used my GH-505 mostly while running and I was powering it off after finished. Sportracks say that i used it for ~600km. I tried to avoid keeping it in watch mode - it spend in that mode maybe 48-72 hours during it's life.

I've tried to update firmware after these pixels showed up, but of course it did not help - as it seems that it is hardware issue...

Could you please advice what should I do? I've bought it on auction service - although I have invoice from company which sold me that device... also I doubt it will be easy to replace by contacting them, also i don't think that there is officiall dealer in Poland...

Thanks and regards,
Arek
Logged

TWG_TECH8

  • Administrator
  • Hero Member
  • *****
  • Karma: 12
  • Offline Offline
  • Posts: 2184
Re: [Help] black spots on LCD
« Reply #17 on: December 10, 2010, 04:53:47 am »

Hi,

Just started to have same issues (dead pixels) - although I used my GH-505 mostly while running and I was powering it off after finished. Sportracks say that i used it for ~600km. I tried to avoid keeping it in watch mode - it spend in that mode maybe 48-72 hours during it's life.

I've tried to update firmware after these pixels showed up, but of course it did not help - as it seems that it is hardware issue...

Could you please advice what should I do? I've bought it on auction service - although I have invoice from company which sold me that device... also I doubt it will be easy to replace by contacting them, also i don't think that there is officiall dealer in Poland...

Thanks and regards,
Arek

Dear Arek,

It is bad to know you encounter problem.
Can you please give me a photo and series number?

Sincerely,

Geoffrey
Logged

xonxoff

  • Newbie
  • Karma: 0
  • Offline Offline
  • Posts: 2
Re: [Help] black spots on LCD
« Reply #18 on: December 14, 2010, 04:27:42 pm »

Hi,

Today I did 1 hour jog at -15C - and magic - these dead pixels are gone. I wonder how long it will last - but for now I'm happy ;). While running, GH-505 was mostly showing heart rate at full screen and I've used backlight several times. And here are picures - with dead pixels and with pixels gone.

Before (few dead pixels):


After (screen seems clean):

Logged

TWG_TECH8

  • Administrator
  • Hero Member
  • *****
  • Karma: 12
  • Offline Offline
  • Posts: 2184
Re: [Help] black spots on LCD
« Reply #19 on: December 14, 2010, 08:25:05 pm »

Hi,

Today I did 1 hour jog at -15C - and magic - these dead pixels are gone. I wonder how long it will last - but for now I'm happy ;). While running, GH-505 was mostly showing heart rate at full screen and I've used backlight several times. And here are picures - with dead pixels and with pixels gone.

Before (few dead pixels):


After (screen seems clean):


It is real amazing! I never heard from supplier and it is difficult to reproduce in my side due to it is never so cold. Anyway, please take care your body. :D
Logged

zingo

  • Sr. Member
  • ****
  • Karma: 1
  • Offline Offline
  • Posts: 323
    • zingo.org
Re: [Help] black spots on LCD
« Reply #20 on: December 15, 2010, 02:29:23 am »

Put it beside the icescreem in the freezer for a while  :P
Logged

TWG_TECH8

  • Administrator
  • Hero Member
  • *****
  • Karma: 12
  • Offline Offline
  • Posts: 2184
Re: [Help] black spots on LCD
« Reply #21 on: December 15, 2010, 04:19:59 am »

Put it beside the icescreem in the freezer for a while  :P

We put 5 pcs with freckles into ice box for 1 hrs under -15 degree C.
Interesting! They were getting improved! :D

Anybody wanna try?

Sincerely,

Geoffrey
Logged

Roger C

  • Jr. Member
  • **
  • Karma: 2
  • Offline Offline
  • Posts: 75
Re: [Help] black spots on LCD
« Reply #22 on: December 15, 2010, 02:00:13 pm »

I noticed that a few weeks ago, left the clock at my balkony over night and no black spot visible in the morning.
But they appears again in inside (warmer) condition.

But the watch works great anyway, 51km run in -6 Celsius over 5,5 hours last weekend, http://www.funbeat.se/tracks/index.aspx?RouteID=600106 From Sala to Vasteras

//Rogers testsample s/n 000029
Logged

zingo

  • Sr. Member
  • ****
  • Karma: 1
  • Offline Offline
  • Posts: 323
    • zingo.org
Re: [Help] black spots on LCD
« Reply #23 on: December 15, 2010, 04:35:58 pm »

Roger C, Read about the sala-västerås run on jogg.se was it good, I live to far away (Lund) to attende.
Logged

TWG_TECH8

  • Administrator
  • Hero Member
  • *****
  • Karma: 12
  • Offline Offline
  • Posts: 2184
Re: [Help] black spots on LCD
« Reply #24 on: December 15, 2010, 08:35:45 pm »

I noticed that a few weeks ago, left the clock at my balkony over night and no black spot visible in the morning.
But they appears again in inside (warmer) condition.

But the watch works great anyway, 51km run in -6 Celsius over 5,5 hours last weekend, http://www.funbeat.se/tracks/index.aspx?RouteID=600106 From Sala to Vasteras

//Rogers testsample s/n 000029

Yesterday, we put other three spot watch into ice box under zero degree, power off ones got recover faster than power on. :D So I agree that cause by temperature.
So we might call GH-505 as "arctic" watch. ;D


Sincerely,

Geoffrey
Logged

freeze_tse

  • Regular Members
  • *
  • Karma: 0
  • Offline Offline
  • Posts: 8
Re: [Help] black spots on LCD
« Reply #25 on: December 20, 2010, 12:58:57 am »

Before:
Power Off


Power On


store in 0 C  ice box 4 hrs

It become less black spots

store in -6C ice box 8 hrs.


Wonderful ! @.@
Logged

TWG_TECH8

  • Administrator
  • Hero Member
  • *****
  • Karma: 12
  • Offline Offline
  • Posts: 2184
Re: [Help] black spots on LCD
« Reply #26 on: December 21, 2010, 12:42:45 am »

Before:
Power Off


Power On


store in 0 C  ice box 4 hrs

It become less black spots

store in -6C ice box 8 hrs.


Wonderful ! @.@

It is really really wonderful!  :o
Logged

zingo

  • Sr. Member
  • ****
  • Karma: 1
  • Offline Offline
  • Posts: 323
    • zingo.org
Re: [Help] black spots on LCD
« Reply #27 on: March 07, 2011, 04:13:55 pm »

How long was the dead pixel gone after freezing does they return at the old rate or "faster"... I'm wondering If I should stay away from the clock-mode or use it and freeze it when needed.
Logged

Rookie

  • Global Moderator
  • Full Member
  • *****
  • Karma: 0
  • Offline Offline
  • Posts: 245
Re: [Help] black spots on LCD
« Reply #28 on: April 26, 2011, 04:46:41 am »

My GH-505 start to have dead pixels as well. It stated suddenly (after half year usage without this problem) and now it is pretty bad.
I have to freeze it after every training. It is pretty good for while but during longer train (>2h) it become quite bad again and it is very hard to read it.

Have you found solution how to get rid of this problem permanently or is it just hardware (on display itself) problem?

Rookie
Logged

Rookie

  • Global Moderator
  • Full Member
  • *****
  • Karma: 0
  • Offline Offline
  • Posts: 245
Re: [Help] black spots on LCD
« Reply #29 on: May 05, 2011, 05:06:54 pm »

My GH-505 start to have dead pixels as well. It stated suddenly (after half year usage without this problem) and now it is pretty bad.
I have to freeze it after every training. It is pretty good for while but during longer train (>2h) it become quite bad again and it is very hard to read it.

Have you found solution how to get rid of this problem permanently or is it just hardware (on display itself) problem?

Rookie
How about this issue, any news regarding it?

Do you have any spare display available? I can change that display by myself if you have one for me.

Rookie
Logged
Pages: 1 [2] 3   Go Up
 

Page created in 0.292 seconds with 20 queries.