Htc desire 500 backlight problem. - GSM-Forum

Pandemonio100 · 06-12-2014, 16:18

HI friend i have a strange problem whit an Htc desire 500 problem is light setting not work, the light inside lcd is low but visible i reset it but nothing changing in setting brightness also if i change the level not change also using automatic brightness not change but if i close sensor with the hand the two function keys light up.

somenone have had this problem.
Tanks
Pandemonio100

lc5829 · 06-17-2014, 14:24

Same problem here after JTAG, no shorts after removing the wires, still no light setting is working. Light sensor and proximity sesor work normal.

I try to find another device to see if it is mainboard or LCD.

Await any solution, thank you.

lc5829 · 06-24-2014, 19:17

Quote:

Originally Posted by Pandemonio100

HI friend i have a strange problem whit an Htc desire 500 problem is light setting not work, the light inside lcd is low but visible i reset it but nothing changing in setting brightness also if i change the level not change also using automatic brightness not change but if i close sensor with the hand the two function keys light up.

somenone have had this problem.
Tanks
Pandemonio100

Did you find solution by any chance? I tested now with another complete LCD assembly, same problem with that, aswell.

Thank you, WBR
e-studio.hu

Pandemonio100 · 06-25-2014, 08:52

Unfortunately I have not solved and i give back to customer but it's a very very strange problem I've never seen, usually in others phones when light not work not work, this instead has only a problem on the setting of the light.

lc5829 · 06-25-2014, 11:57

I also have no idea what happened, but unfortunately it happened after I successfully did JTAG unlock on it. I guess I'll have to buy another one for customer

Thank you for info, anyways.

WBR
e-studio.hu

CEPHASTANESİ · 08-13-2014, 15:43

change lcd light coil 200 erıcsson k300 coil 200 change test ok

lc5829 · 08-14-2014, 14:30

Could you share a picture to make identification of faulty part easier?

Thank you.

popzoran · 08-19-2014, 14:20

Coil 220 near to baterry conector from k800,k750 etc.

romio_16 · 09-06-2014, 21:02

can any body post antina ways for these modle

online-nokia · 01-20-2015, 10:00

Thanks for solution. It works for me after Desire 300 water damage and low screen backlight. I have changed coil from HTC Cha Cha.

rico1 · 02-16-2015, 17:49

This first phone unlock procedure, then not light!
this solution helped me a lot! I exchanged the coil! Thanks!!!!

xela09 · 03-19-2015, 14:50

Good solution! I used coil from SE K500. Thank's guys!

Mehrshad-M2 · 04-12-2015, 15:48

Tanks guys, i change coil 220 an its work

danmo · 04-21-2015, 09:19

After change coil 220 backlight was work just few second and stop. Any other solution?

taxpayer · 06-25-2015, 16:32

I changed the 220 coil and LCD is bright again.
Thanks!

06-12-2014, 16:18	#1 (permalink)
Pandemonio100 No Life Poster Join Date: Feb 2001 Location: ITALY Age: 51 Posts: 3,969 Member: 3381 Status: Offline Thanks Meter: 1,171	Htc desire 500 backlight problem. HI friend i have a strange problem whit an Htc desire 500 problem is light setting not work, the light inside lcd is low but visible i reset it but nothing changing in setting brightness also if i change the level not change also using automatic brightness not change but if i close sensor with the hand the two function keys light up. somenone have had this problem. Tanks Pandemonio100

06-17-2014, 14:24	#2 (permalink)
lc5829 Freak Poster Join Date: Dec 2002 Location: Zooropa Age: 42 Posts: 490 Member: 18832 Status: Offline Thanks Meter: 18	Same problem here after JTAG, no shorts after removing the wires, still no light setting is working. Light sensor and proximity sesor work normal. I try to find another device to see if it is mainboard or LCD. Await any solution, thank you.

06-25-2014, 08:52	#4 (permalink)
Pandemonio100 No Life Poster Join Date: Feb 2001 Location: ITALY Age: 51 Posts: 3,969 Member: 3381 Status: Offline Thanks Meter: 1,171	Unfortunately I have not solved and i give back to customer but it's a very very strange problem I've never seen, usually in others phones when light not work not work, this instead has only a problem on the setting of the light.

06-25-2014, 11:57	#5 (permalink)
lc5829 Freak Poster Join Date: Dec 2002 Location: Zooropa Age: 42 Posts: 490 Member: 18832 Status: Offline Thanks Meter: 18	I also have no idea what happened, but unfortunately it happened after I successfully did JTAG unlock on it. I guess I'll have to buy another one for customer Thank you for info, anyways. WBR e-studio.hu

08-13-2014, 15:43	#6 (permalink)
CEPHASTANESİ Freak Poster Join Date: Nov 2004 Age: 42 Posts: 153 Member: 91740 Status: Offline Thanks Meter: 31	change lcd light coil 200 erıcsson k300 coil 200 change test ok

08-14-2014, 14:30	#7 (permalink)
lc5829 Freak Poster Join Date: Dec 2002 Location: Zooropa Age: 42 Posts: 490 Member: 18832 Status: Offline Thanks Meter: 18	Could you share a picture to make identification of faulty part easier? Thank you.

09-06-2014, 21:02	#9 (permalink)
romio_16 Freak Poster Join Date: Jul 2007 Posts: 163 Member: 542671 Status: Offline Thanks Meter: 19	can any body post antina ways for these modle

01-20-2015, 10:00	#10 (permalink)
online-nokia Freak Poster Join Date: Jan 2010 Age: 14 Posts: 410 Member: 1214273 Status: Offline Thanks Meter: 136	Thanks for solution. It works for me after Desire 300 water damage and low screen backlight. I have changed coil from HTC Cha Cha.

02-16-2015, 17:49	#11 (permalink)
rico1 No Life Poster Join Date: Jul 2001 Location: handline Age: 48 Posts: 788 Member: 5397 Status: Offline Thanks Meter: 38	This first phone unlock procedure, then not light! this solution helped me a lot! I exchanged the coil! Thanks!!!!

03-19-2015, 14:50	#12 (permalink)
xela09 Freak Poster Join Date: Feb 2005 Age: 44 Posts: 106 Member: 120029 Status: Offline Thanks Meter: 14	Good solution! I used coil from SE K500. Thank's guys!

04-12-2015, 15:48	#13 (permalink)
Mehrshad-M2 Junior Member Join Date: Apr 2015 Posts: 1 Member: 2377883 Status: Offline Thanks Meter: 0	Tanks guys, i change coil 220 an its work

04-21-2015, 09:19	#14 (permalink)
danmo Junior Member Join Date: Apr 2015 Posts: 30 Member: 2382359 Status: Offline Thanks Meter: 1	After change coil 220 backlight was work just few second and stop. Any other solution?

06-25-2015, 16:32	#15 (permalink)
taxpayer Junior Member Join Date: May 2012 Posts: 1 Member: 1761814 Status: Offline Thanks Meter: 0	I changed the 220 coil and LCD is bright again. Thanks!