Samsung Galaxy Note Pro 12.2 screen flickering issue solved!

tjmethod

Senior Member
Feb 20, 2012
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Foxboro
Since changing settings in developer options did nothing for me I checked all the terminals on the black hub soldered to the board with a small precision screwdriver with were all solidly in place so I spliced apart the white battery connector housing to remove completely (this is where the Carson Pro LED Magnavisor from Amazon was a must from Amazon). I then proceeded to attach and solder each battery connector to it's terminal then solder each one in place. the solder job isn't the prettiest but it works, then I cut small pieces of plastic to put in place between the 6 leads, rescrewed the battery down, put the tape back on the connection, fired it up and not one flash or flicker! I'm on 18% battery right now which before would have been going off like the 4th of July. The only thing that perplexes me is that before the fix and booting into recovery, not one flash or flicker but booting back into system and was a flickerfest. I can only guess recovery runs on only a lead or 2.
 

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luffy092

Member
Feb 23, 2016
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CHATENAY MALABRY
Since changing settings in developer options did nothing for me I checked all the terminals on the black hub soldered to the board with a small precision screwdriver with were all solidly in place so I spliced apart the white battery connector housing to remove completely (this is where the Carson Pro LED Magnavisor from Amazon was a must from Amazon). I then proceeded to attach and solder each battery connector to it's terminal then solder each one in place. the solder job isn't the prettiest but it works, then I cut small pieces of plastic to put in place between the 6 leads, rescrewed the battery down, put the tape back on the connection, fired it up and not one flash or flicker! I'm on 18% battery right now which before would have been going off like the 4th of July. The only thing that perplexes me is that before the fix and booting into recovery, not one flash or flicker but booting back into system and was a flickerfest. I can only guess recovery runs on only a lead or 2.
I got the same issue, and yesterday I just unplugged and replugged the battery connector which solved my issue.
But I believe this is temporarly and that I would do a better repair if I do solder.

Thanks for providing pictures.
 

tjmethod

Senior Member
Feb 20, 2012
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Foxboro
Ya unfortunately the wire connectors inside the white plastic connector aren't making a tight pinch on the terminals and there is no way to close the distance without getting the white connector out of the way. You could remove the white plastic connector and pinch each one on with needle nose pliers but you might as well solder them on if you go that far. This is why people are having problems replacement tablets- its faulty battery connectors…



I got the same issue, and yesterday I just unplugged and replugged the battery connector which solved my issue.
But I believe this is temporarly and that I would do a better repair if I do solder.

Thanks for providing pictures.
 

Beut

Senior Member
Jun 28, 2015
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Ya unfortunately the wire connectors inside the white plastic connector aren't making a tight pinch on the terminals and there is no way to close the distance without getting the white connector out of the way. You could remove the white plastic connector and pinch each one on with needle nose pliers but you might as well solder them on if you go that far. This is why people are having problems replacement tablets- its faulty battery connectors…
The battery connector with 6 wires only a minor source of flickering screen. You don't need to cut and solder it to the male connector.
The loose connector can be fixed by pushing the opening tip closer like this



Samsung fix it by adding the silver conductive glue like this


The major problem is from the male connector soldered to the mainboard. From my professional experiences, 90 % from cracked male connector ( black with 6 pins and soldered to mainboard ) , only 10% causing by loose female battery connector ( white with 6 wires ) : Samsung just simply use a conductive glue.

Trust me, I have fixed not a few but hundreds of them with this problem.
 
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tjmethod

Senior Member
Feb 20, 2012
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Foxboro
Great pictures! Well it looks like I am one of the lucky ones- glad I was able to even solder those wires on to the male connector terminals. I did check them- they were solid- I wouldn't have been able to have done it without the Carson LED Magnavisor- its got 4 different interchangeable power lenses. I dont think my tip would have been small enough to heat up the solder on the male connector termials- but I totally believe you most are cracked- glad I havent had a problem since. I have like 5 note tablets and the xe7000t1a windows slate in fact almost everything I own is Samsung including the 17" i7 chronos notebook I'm typing this on. So do you do this sort of thing in the line of business?


The battery connector with 6 wires only a minor source of flickering screen. You don't need to cut and solder it to the male connector.
The loose connector can be fixed by pushing the opening tip closer like this



Samsung fix it by adding the silver conductive glue like this


The major problem is from the male connector soldered to the mainboard. From my professional experiences, 90 % from cracked male connector ( black with 6 pins and soldered to mainboard ) , only 10% causing by loose female battery connector ( white with 6 wires ) : Samsung just simply use a conductive glue.

Trust me, I have fixed not a few but hundreds of them with this problem.
 

Beut

Senior Member
Jun 28, 2015
531
179
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Great pictures! Well it looks like I am one of the lucky ones- glad I was able to even solder those wires on to the male connector terminals. I did check them- they were solid- I wouldn't have been able to have done it without the Carson LED Magnavisor- its got 4 different interchangeable power lenses. I dont think my tip would have been small enough to heat up the solder on the male connector termials- but I totally believe you most are cracked- glad I havent had a problem since. I have like 5 note tablets and the xe7000t1a windows slate in fact almost everything I own is Samsung including the 17" i7 chronos notebook I'm typing this on. So do you do this sort of thing in the line of business?
I used to work at Samsung Repair Center, fixed more than thousands of them
 

tjmethod

Senior Member
Feb 20, 2012
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Foxboro
That wouldnt be Intelisol in Fort Worth Tx?



QUOTE=Beut;65498191]I used to work at Samsung Repair Center, fixed more than thousands of them[/QUOTE]
 

chumvi

New member
Feb 25, 2016
3
1
0
Arusha
Since changing settings in developer options did nothing for me I checked all the terminals on the black hub soldered to the board with a small precision screwdriver with were all solidly in place so I spliced apart the white battery connector housing to remove completely (this is where the Carson Pro LED Magnavisor from Amazon was a must from Amazon). I then proceeded to attach and solder each battery connector to it's terminal then solder each one in place. the solder job isn't the prettiest but it works, then I cut small pieces of plastic to put in place between the 6 leads, rescrewed the battery down, put the tape back on the connection, fired it up and not one flash or flicker! I'm on 18% battery right now which before would have been going off like the 4th of July. The only thing that perplexes me is that before the fix and booting into recovery, not one flash or flicker but booting back into system and was a flickerfest. I can only guess recovery runs on only a lead or 2.
I was asking is there any video which shows steps by step on how to do the solder because i want to do that myself
 

tjmethod

Senior Member
Feb 20, 2012
216
35
0
Foxboro
I would check all posts/ threads/ responses from 'Beut'- he's a former samsumg repairman who's repaired thousands of these

[QQUOTE=chumvi;65509217]I was asking is there any video which shows steps by step on how to do the solder because i want to do that myself[/QUOTE]
 

Beut

Senior Member
Jun 28, 2015
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I was asking is there any video which shows steps by step on how to do the solder because i want to do that myself
Videos won't help if you don't have experiences in soldering. There are many components close to these six pins, without experience and proper solder tip you will cause solder bridges on mainboard. I need a 10x microscope to see clearly what I am doing. You should bring it to a professional , they won't charge much for a 5 to 10 minute re work.

This is the original battery connector with hairline cracks


Then a re soldered battery connector which has more solders added to secure the connections



An experienced tech will routine re work on these two battery connectors first, even the screen is not flickering, because sooner or later it will come back with this problem.
 
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beachbouy

Member
May 22, 2015
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Coffs Harbour
Hi guys,
I didn't want to post in an old thread, but I'm still having trouble with my Note. I took it to a "Pro" to solder the connectors down because the whole thing came off the board somehow. The "Pro" was pretty useless. He left solder all over the place and the tablet was shorting when I picked it up. So I took it back and the photo shows what I ended up with after 4 attempts at fixing the flickering. At this point I've decided to dump the "Pro" and solder the wires directly to the circuit pads. Only one problem - Solder will not stick to the pads no matter what I do. I've tried heating the pads with the iron before applying the solder but it wont stick. I've cleaned the site with alcohol and took off the sticky residue left by the "Pro".

Can anyone see an issue in the photo which might be causing the problem?

Thanks for the help.



---------- Post added at 01:30 AM ---------- Previous post was at 01:30 AM ----------

Hi guys,
I didn't want to post in an old thread, but I'm still having trouble with my Note. I took it to a "Pro" to solder the connectors down because the whole thing came off the board somehow. The "Pro" was pretty useless. He left solder all over the place and the tablet was shorting when I picked it up. So I took it back and the photo shows what I ended up with after 4 attempts at fixing the flickering. At this point I've decided to dump the "Pro" and solder the wires directly to the circuit pads. Only one problem - Solder will not stick to the pads no matter what I do. I've tried heating the pads with the iron before applying the solder but it wont stick. I've cleaned the site with alcohol and took off the sticky residue left by the "Pro".

Can anyone see an issue in the photo which might be causing the problem?

Thanks for the help.