SAMSUNG UE46D5520 rebooting

**finntricky** · 12-31-2018, 08:51 AM

Hi guys
had a few of these samsungs come in with the same fault,
plug it in and boots to samsung logo, then turns off and starts again,
now from what im lead to believe is that the nand chip has corrupt software from an update, and replacing this chip will solve the problem,
so i got a chip from ebay, that says programed with updated software,
installed it, and still the same happens,
is there any other steps that i have to take or do ?

**vinceroger69** · 12-31-2018, 09:16 AM

does it boot up fully if you disconnect the tcon board?

**nomoresonys** · 12-31-2018, 09:50 AM

See if you can do a factory reset, I believe you hit: info-menu-mute-power to get at the service menu, be very careful in there, you only want to do factory reset for now, to see if it will clear up the issue, probably under options-factory reset.

**nomoresonys** · 12-31-2018, 10:10 AM

Another thing to try: go into regular menu/system/support/remote management-set to off.

**finntricky** · 12-31-2018, 10:49 AM

Quote:

Originally Posted by vinceroger69

does it boot up fully if you disconnect the tcon board?

no idea m8, have'nt taken this one apart yet, but the 32 inch one is the one i changed the nand on, and that did'nt fully boot, still turned on and of within 30 secs with the t con disconnected.

**finntricky** · 12-31-2018, 10:50 AM

Quote:

Originally Posted by nomoresonys

See if you can do a factory reset, I believe you hit: info-menu-mute-power to get at the service menu, be very careful in there, you only want to do factory reset for now, to see if it will clear up the issue, probably under options-factory reset.

done that, but just don't get enough time to get to the point of the reset, before it turns off again, tryed loads of times

**finntricky** · 12-31-2018, 10:52 AM

Quote:

Originally Posted by nomoresonys

Another thing to try: go into regular menu/system/support/remote management-set to off.

don't get enough time to get that far, even if i manage to get the menu up

**vinceroger69** · 12-31-2018, 10:57 AM

does the nand ic do everything on these sets or is there a 8 legged ic that holds some data too.

**nomoresonys** · 12-31-2018, 12:27 PM

Might not be possible but I wonder if you could do it with a flashlight or does the picture go away completely?

**budm** · 12-31-2018, 12:49 PM

Inspect both end of the connector of the cable that goes between main board and power supply board to see if any part part of the connector has brown stain from over heating or not.

**finntricky** · 12-31-2018, 05:41 PM

Quote:

Originally Posted by vinceroger69

does the nand ic do everything on these sets or is there a 8 legged ic that holds some data too.

yes there is an 8 leg chip, and tryed to reset that as well, but made no different s to the way the tv was acting, except it now comes up with no channels installed,and then shuts down

**vinceroger69** · 12-31-2018, 06:13 PM

so that may of reset it to factory settings (first plug in screen ie choose language and tune channels etc) reading a few threads usually changing the nand solves this issue is it possible you got a bad nand replacement

**finntricky** · 01-01-2019, 06:21 AM

dont get choose language, just samsung logo, then no channels installed, then shuts down and reboots again, i have ordered a few nand chips, from a different supplier, just in case it was a bad one that i got the first time, only time will tell, but if someone has the firmware for the 8 leg chip, i'll reflash it and see what happens, can't seem to find it anywhere,
i have the 62 meg update file from samsung site, but without the tv staying on, i can't use that from USB

**vinceroger69** · 01-01-2019, 06:50 AM

dont some samsungs rewrite there own data back on to the eeproms i remember on some samsungs you could fit a blank new one what mainboard number is used in this set

**finntricky** · 01-01-2019, 07:08 AM

BN41-01660A BN94-04465W i believe,

**finntricky** · 02-03-2019, 06:46 AM

UPDATE,
after having 6 different NAND chips from different sources, all resulted in the same outcome,
the tv never went any further than it did to start with, or the tv would not boot at all, so i have now given up, it looks like the only way i will ever get this tv to work , is to replace the main board with a working one, so if anybody has one hanging about, let me know please, or i'll just gumtree the thing for spares or repairs.

**nomoresonys** · 02-03-2019, 08:50 AM

**vinceroger69** · 02-03-2019, 09:03 AM

un bricking ic1901
https://wiki.samygo.tv/index.php/UnB...M_.28EEPROM.29

**finntricky** · 02-03-2019, 02:45 PM

tryed that as well Vinceroger69

**nomoresonys** · 02-03-2019, 07:25 PM

Head scratcher, unless your firmware is wrong or your preparation of the chip is off somehow or your programmer?

12-31-2018, 08:51 AM	#1
finntricky Badcaps Veteran Join Date: Jan 2014 City & State: grays/essex My Country: uk Line Voltage: 240v I'm a: Knowledge Seeker Posts: 356	SAMSUNG UE46D5520 rebooting Hi guys had a few of these samsungs come in with the same fault, plug it in and boots to samsung logo, then turns off and starts again, now from what im lead to believe is that the nand chip has corrupt software from an update, and replacing this chip will solve the problem, so i got a chip from ebay, that says programed with updated software, installed it, and still the same happens, is there any other steps that i have to take or do ?

12-31-2018, 09:16 AM	#2
vinceroger69 Badcaps Veteran Join Date: Mar 2012 City & State: Nuneaton Warwickshire My Country: uk I'm a: Hobbyist Tech Posts: 5,996	Re: SAMSUNG UE46D5520 rebooting does it boot up fully if you disconnect the tcon board?

12-31-2018, 09:50 AM	#3
nomoresonys Badcaps Veteran Join Date: Jan 2013 City & State: midwest My Country: U.S. I'm a: Knowledge Seeker Posts: 6,225	Re: SAMSUNG UE46D5520 rebooting See if you can do a factory reset, I believe you hit: info-menu-mute-power to get at the service menu, be very careful in there, you only want to do factory reset for now, to see if it will clear up the issue, probably under options-factory reset. Last edited by nomoresonys; 12-31-2018 at 09:53 AM..

12-31-2018, 10:10 AM	#4
nomoresonys Badcaps Veteran Join Date: Jan 2013 City & State: midwest My Country: U.S. I'm a: Knowledge Seeker Posts: 6,225	Re: SAMSUNG UE46D5520 rebooting Another thing to try: go into regular menu/system/support/remote management-set to off.

12-31-2018, 10:57 AM	#8
vinceroger69 Badcaps Veteran Join Date: Mar 2012 City & State: Nuneaton Warwickshire My Country: uk I'm a: Hobbyist Tech Posts: 5,996	Re: SAMSUNG UE46D5520 rebooting does the nand ic do everything on these sets or is there a 8 legged ic that holds some data too.

12-31-2018, 12:27 PM	#9
nomoresonys Badcaps Veteran Join Date: Jan 2013 City & State: midwest My Country: U.S. I'm a: Knowledge Seeker Posts: 6,225	Re: SAMSUNG UE46D5520 rebooting Might not be possible but I wonder if you could do it with a flashlight or does the picture go away completely?

12-31-2018, 12:49 PM	#10
budm Badcaps Veteran Join Date: Feb 2010 City & State: S.F. Bay area My Country: USA Line Voltage: 120V 60Hz I'm a: Knowledge Seeker Posts: 39,102	Re: SAMSUNG UE46D5520 rebooting Inspect both end of the connector of the cable that goes between main board and power supply board to see if any part part of the connector has brown stain from over heating or not. __________________ Never stop learning Basic LCD TV and Monitor troubleshooting guides. http://www.badcaps.net/forum/showthr...956#post305956 Voltage Regulator (LDO) testing: http://www.badcaps.net/forum/showthr...999#post300999 Inverter testing using old CFL: http://www.badcaps.net/forum/showthr...er+testing+cfl Tear down pictures : Hit the ">" Show Albums and stories" on the left side http://s807.photobucket.com/user/budm/library/ TV Factory reset codes listing: http://www.badcaps.net/forum/showthread.php?t=24809

12-31-2018, 06:13 PM	#12
vinceroger69 Badcaps Veteran Join Date: Mar 2012 City & State: Nuneaton Warwickshire My Country: uk I'm a: Hobbyist Tech Posts: 5,996	Re: SAMSUNG UE46D5520 rebooting so that may of reset it to factory settings (first plug in screen ie choose language and tune channels etc) reading a few threads usually changing the nand solves this issue is it possible you got a bad nand replacement

01-01-2019, 06:21 AM	#13
finntricky Badcaps Veteran Join Date: Jan 2014 City & State: grays/essex My Country: uk Line Voltage: 240v I'm a: Knowledge Seeker Posts: 356	Re: SAMSUNG UE46D5520 rebooting dont get choose language, just samsung logo, then no channels installed, then shuts down and reboots again, i have ordered a few nand chips, from a different supplier, just in case it was a bad one that i got the first time, only time will tell, but if someone has the firmware for the 8 leg chip, i'll reflash it and see what happens, can't seem to find it anywhere, i have the 62 meg update file from samsung site, but without the tv staying on, i can't use that from USB

01-01-2019, 06:50 AM	#14
vinceroger69 Badcaps Veteran Join Date: Mar 2012 City & State: Nuneaton Warwickshire My Country: uk I'm a: Hobbyist Tech Posts: 5,996	Re: SAMSUNG UE46D5520 rebooting dont some samsungs rewrite there own data back on to the eeproms i remember on some samsungs you could fit a blank new one what mainboard number is used in this set

01-01-2019, 07:08 AM	#15
finntricky Badcaps Veteran Join Date: Jan 2014 City & State: grays/essex My Country: uk Line Voltage: 240v I'm a: Knowledge Seeker Posts: 356	Re: SAMSUNG UE46D5520 rebooting BN41-01660A BN94-04465W i believe,

02-03-2019, 06:46 AM	#16
finntricky Badcaps Veteran Join Date: Jan 2014 City & State: grays/essex My Country: uk Line Voltage: 240v I'm a: Knowledge Seeker Posts: 356	Re: SAMSUNG UE46D5520 rebooting UPDATE, after having 6 different NAND chips from different sources, all resulted in the same outcome, the tv never went any further than it did to start with, or the tv would not boot at all, so i have now given up, it looks like the only way i will ever get this tv to work , is to replace the main board with a working one, so if anybody has one hanging about, let me know please, or i'll just gumtree the thing for spares or repairs.

02-03-2019, 08:50 AM	#17
nomoresonys Badcaps Veteran Join Date: Jan 2013 City & State: midwest My Country: U.S. I'm a: Knowledge Seeker Posts: 6,225	Re: SAMSUNG UE46D5520 rebooting . Last edited by nomoresonys; 02-03-2019 at 10:00 AM..

02-03-2019, 02:45 PM	#19
finntricky Badcaps Veteran Join Date: Jan 2014 City & State: grays/essex My Country: uk Line Voltage: 240v I'm a: Knowledge Seeker Posts: 356	Re: SAMSUNG UE46D5520 rebooting tryed that as well Vinceroger69

02-03-2019, 07:25 PM	#20
nomoresonys Badcaps Veteran Join Date: Jan 2013 City & State: midwest My Country: U.S. I'm a: Knowledge Seeker Posts: 6,225	Re: SAMSUNG UE46D5520 rebooting Head scratcher, unless your firmware is wrong or your preparation of the chip is off somehow or your programmer? Last edited by nomoresonys; 02-03-2019 at 07:27 PM..

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