Htc One x strange backlight problem - Page 3 - GSM-Forum

tomatos666 · 01-29-2013, 07:17

Hello,

some one can tell me where i can buy a new coil?
I don´t find in the electronic stores.
I have change the 220 coil. And it work for ca 5 min.
Rhen the display went blank.
Resistance of the coil is now 0.1 ohm.
I have taket the coil from a old Phone.
Probably it has the coil burned.

(Sorry for my bad English)

the_strange_use · 01-29-2013, 08:23

I have the same problem like the man in Sydney but I do not know which 2r2 coil is needed there could somebody pls tell me the full number of the coil

unlock.mk · 01-29-2013, 08:39

Quote:

Originally Posted by tomatos666

Hello,

some one can tell me where i can buy a new coil?
I don´t find in the electronic stores.
I have change the 220 coil. And it work for ca 5 min.
Rhen the display went blank.
Resistance of the coil is now 0.1 ohm.
I have taket the coil from a old Phone.
Probably it has the coil burned.

(Sorry for my bad English)

Quote:

Originally Posted by the_strange_use

I have the same problem like the man in Sydney but I do not know which 2r2 coil is needed there could somebody pls tell me the full number of the coil

Take the coil from iPhone 3 or 3gs or even from Sony Ericsson W302.
When soldering please do not burn the coil.

tomatos666 · 01-29-2013, 09:02

Hello,
2R2 Coil are 2,2µH and in the phone are a 220 Coil
220 Coil are 22µH or i´m wrong?
The 2R2 work in the Phone?
In the Datasheet of the chip are writen 10µh-22µH Coil for the Display.
I don´t wont use just uset Hardware because it's difficult to desolder to don´t burn the coil.

Vasil788 · 01-29-2013, 12:08

I understand 220 does not go? or still need to put 2R2 please verify.

tomatos666 · 01-29-2013, 15:31

Hello,
i don´t know if i´m right bur i think the coil are:
VLF3012AT-220MR33

tomatos666 · 01-29-2013, 15:31

Sorry double posting

unlock.mk · 01-29-2013, 17:35

6r8 can be replaced with 2r2.

TRABEL · 01-31-2013, 03:53

hi
i wonder what is the value of the second coil and where can i get it from ?
on other post i see its
Coil 2: 2.2 mH

any replacement ?
i changed the r220 and the ic and make jumper on the second coil , back light is working , but i want to replace with a correct coil
thanks

IT1989 · 02-01-2013, 03:05

Anyone know why this happens when we replace the screen? Any way of preventing it from happening?

tomatos666 · 02-01-2013, 06:17

Hello,
can anyone confirm to me that a coil 6R8 to put the 220 coil work without replace the ic?

gsm_zone · 02-02-2013, 03:08

Quote:

Originally Posted by Mobile Fix Simple

Please do one by one! Your problem will be solved.
P.S. the mother board of One X is different with One XL. This Solution is for HTC ONE X ONLY!

does this also help to fix this problem
Htc one x black screen problem - YouTube
http://www.youtube.com/watch?NR=1&v=...ture=endscreen

or does anyone know how to fix it

mrblueis1 · 02-02-2013, 04:36

Helo everyone i dnt know i also change r220 coil??? In my htc onex when i power it phone start witj fine display but when i put phone in corner for few minute n i take phone n try to switch their is no display comes only light on BACK HOME nMINIMIZE. AND i press n hold power key phone become restary with fine display but same when i put corner for few minute n try switch their is no display comes only light on BACK HOME nMINIMIZE. Hope understant what is these plz neef solution with 100%

tomatos666 · 02-04-2013, 06:09

Hello,
I have change the coil again.
Now it works! But now I have a another Problem.
Now flickering single pixel.
Only when I watch videos or have a live background.
Comes from the screen or from the GPU?

Enrparr · 02-06-2013, 21:17

Hi, I'm Italian, so I have replaced the coil and now backlight is ok. Thank you! The coil is original VLF3010ST-220MR34 TDK; measure 22uH, I have a coil removed from Nokia 5200, it is slightly large, it is 220MR43! Coils are found in many nokia phone

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

01-29-2013, 07:17	#31 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 13 Member: 1861479 Status: Offline Thanks: 1 Thanked 0 Times in 0 Posts	Hello, some one can tell me where i can buy a new coil? I don´t find in the electronic stores. I have change the 220 coil. And it work for ca 5 min. Rhen the display went blank. Resistance of the coil is now 0.1 ohm. I have taket the coil from a old Phone. Probably it has the coil burned. (Sorry for my bad English)

01-29-2013, 08:23	#32 (permalink)
the_strange_use Junior Member Join Date: Jan 2013 Posts: 1 Member: 1875682 Status: Offline Thanks: 0 Thanked 0 Times in 0 Posts	I have the same problem like the man in Sydney but I do not know which 2r2 coil is needed there could somebody pls tell me the full number of the coil

01-29-2013, 09:02	#34 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 13 Member: 1861479 Status: Offline Thanks: 1 Thanked 0 Times in 0 Posts	Hello, 2R2 Coil are 2,2µH and in the phone are a 220 Coil 220 Coil are 22µH or i´m wrong? The 2R2 work in the Phone? In the Datasheet of the chip are writen 10µh-22µH Coil for the Display. I don´t wont use just uset Hardware because it's difficult to desolder to don´t burn the coil.

01-29-2013, 12:08	#35 (permalink)
Vasil788 Junior Member Join Date: Jan 2013 Posts: 2 Member: 1873549 Status: Offline Sonork: 12345 Thanks: 0 Thanked 0 Times in 0 Posts	I understand 220 does not go? or still need to put 2R2 please verify.

01-29-2013, 15:31	#36 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 13 Member: 1861479 Status: Offline Thanks: 1 Thanked 0 Times in 0 Posts	Hello, i don´t know if i´m right bur i think the coil are: VLF3012AT-220MR33

01-29-2013, 15:31	#37 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 13 Member: 1861479 Status: Offline Thanks: 1 Thanked 0 Times in 0 Posts	Sorry double posting

01-29-2013, 17:35	#38 (permalink)
unlock.mk No Life Poster Join Date: Oct 2011 Location: Macedonia Posts: 674 Member: 1671934 Status: Offline Sonork: 1612800 Thanks: 219 Thanked 114 Times in 90 Posts	6r8 can be replaced with 2r2.

01-31-2013, 03:53	#39 (permalink)
TRABEL No Life Poster Join Date: Feb 2003 Location: on the Moon ;) Age: 36 Posts: 2,641 Member: 21937 Status: Offline Thanks: 144 Thanked 268 Times in 169 Posts	hi i wonder what is the value of the second coil and where can i get it from ? on other post i see its Coil 2: 2.2 mH any replacement ? i changed the r220 and the ic and make jumper on the second coil , back light is working , but i want to replace with a correct coil thanks

02-01-2013, 03:05	#40 (permalink)
IT1989 Junior Member Join Date: Jun 2012 Posts: 15 Member: 1776142 Status: Offline Thanks: 0 Thanked 4 Times in 3 Posts	Anyone know why this happens when we replace the screen? Any way of preventing it from happening?

02-01-2013, 06:17	#41 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 13 Member: 1861479 Status: Offline Thanks: 1 Thanked 0 Times in 0 Posts	Hello, can anyone confirm to me that a coil 6R8 to put the 220 coil work without replace the ic?

02-02-2013, 04:36	#43 (permalink)
mrblueis1 Junior Member Join Date: Sep 2011 Posts: 34 Member: 1662406 Status: Offline Thanks: 8 Thanked 1 Time in 1 Post	Helo everyone i dnt know i also change r220 coil??? In my htc onex when i power it phone start witj fine display but when i put phone in corner for few minute n i take phone n try to switch their is no display comes only light on BACK HOME nMINIMIZE. AND i press n hold power key phone become restary with fine display but same when i put corner for few minute n try switch their is no display comes only light on BACK HOME nMINIMIZE. Hope understant what is these plz neef solution with 100%

02-04-2013, 06:09	#44 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 13 Member: 1861479 Status: Offline Thanks: 1 Thanked 0 Times in 0 Posts	Hello, I have change the coil again. Now it works! But now I have a another Problem. Now flickering single pixel. Only when I watch videos or have a live background. Comes from the screen or from the GPU?

02-06-2013, 21:17	#45 (permalink)
Enrparr Junior Member Join Date: Jan 2013 Posts: 2 Member: 1865881 Status: Offline Thanks: 0 Thanked 0 Times in 0 Posts	Hi, I'm Italian, so I have replaced the coil and now backlight is ok. Thank you! The coil is original VLF3010ST-220MR34 TDK; measure 22uH, I have a coil removed from Nokia 5200, it is slightly large, it is 220MR43! Coils are found in many nokia phone