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

tomatos666 · 01-29-2013, 08:17

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, 09:23

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, 09:39

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, 10:02

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, 13:08

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

tomatos666 · 01-29-2013, 16:31

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

tomatos666 · 01-29-2013, 16:31

Sorry double posting

unlock.mk · 01-29-2013, 18:35

6r8 can be replaced with 2r2.

TRABEL · 01-31-2013, 04:53

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, 04:05

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

tomatos666 · 02-01-2013, 07:17

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, 04:08

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, 05:36

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, 07:09

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, 22:17

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

01-29-2013, 08:17	#31 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 25 Member: 1861479 Status: Offline Thanks Meter: 1	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, 09:23	#32 (permalink)
the_strange_use Junior Member Join Date: Jan 2013 Posts: 1 Member: 1875682 Status: Offline Thanks Meter: 0	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, 10:02	#34 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 25 Member: 1861479 Status: Offline Thanks Meter: 1	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, 13:08	#35 (permalink)
Vasil788 Junior Member Join Date: Jan 2013 Posts: 4 Member: 1873549 Status: Offline Sonork: 12345 Thanks Meter: 0	I understand 220 does not go? or still need to put 2R2 please verify.

01-29-2013, 16:31	#36 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 25 Member: 1861479 Status: Offline Thanks Meter: 1	Hello, i don´t know if i´m right bur i think the coil are: VLF3012AT-220MR33

01-29-2013, 16:31	#37 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 25 Member: 1861479 Status: Offline Thanks Meter: 1	Sorry double posting

01-29-2013, 18:35	#38 (permalink)
unlock.mk No Life Poster Join Date: Oct 2011 Location: Macedonia Posts: 1,196 Member: 1671934 Status: Offline Thanks Meter: 247	6r8 can be replaced with 2r2.

01-31-2013, 04:53	#39 (permalink)
TRABEL No Life Poster Join Date: Feb 2003 Location: on the Moon ;) Age: 47 Posts: 2,797 Member: 21937 Status: Offline Thanks Meter: 279	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, 04:05	#40 (permalink)
IT1989 Junior Member Join Date: Jun 2012 Posts: 21 Member: 1776142 Status: Offline Thanks Meter: 4	Anyone know why this happens when we replace the screen? Any way of preventing it from happening?

02-01-2013, 07:17	#41 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 25 Member: 1861479 Status: Offline Thanks Meter: 1	Hello, can anyone confirm to me that a coil 6R8 to put the 220 coil work without replace the ic?

02-02-2013, 05:36	#43 (permalink)
mrblueis1 Junior Member Join Date: Sep 2011 Posts: 34 Member: 1662406 Status: Offline Thanks Meter: 1	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, 07:09	#44 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 25 Member: 1861479 Status: Offline Thanks Meter: 1	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, 22:17	#45 (permalink)
Enrparr Junior Member Join Date: Jan 2013 Posts: 2 Member: 1865881 Status: Offline Thanks Meter: 0	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