Galaxy Tab S2 SM-T710 overheating when OFF and plugged in!

[kaiser_butt]

Hi everyone,

Please ignore this post and read the one below. I cant delete this one and i double posted by mistake.

Thank you.

 

[kaiser_butt]

MERGED QUESTION
Question from kaiser_butt : "Galaxy Tab S2 SM-T710 overheating when OFF and plugged in!"

Hi everyone,

I'm really hoping someone can help me.

I have a Samsung galaxy tab s2 8inch. It is the SM-T710.

It was working fine playing music on a Bluetooth speaker system then the battery died.

Tried to charge it and it was acting funny, said it was charging then got to one or two percent and i attempted to power on while the device is on charge and it powered on then turned off within a few seconds.

Let the tablet charge for a while now and its not really going up and the screen has gone off and its not turning on and i now notice its getting really hot at the bottom part of the screen slightly above the home button.

Removed the charger and left it for one hour, then came back and tried with a different new genuine Samsung charger and cable, and still getting extremely hot within a few 5 - 10 seconds just above the home button.

Unplugged it and left it till the next day and attempted to charge it again same thing.

I though it could be either: A faulty battery or A faulty Micro USB charging port flex (possibly short circuiting).

Now Ive opened up the whole device and taken apart every item on the mother board following a tear down video on YouTube.

https/www.youtube.com/watch?v=UB1ovCcEyFc

I then connected a brand new genuine battery to the board and removed the old one, and the device was still overheating however this time i could pin point the exact source of heat on the motherboard which i will circle on an image but cant attach to this post.

The images are on my public google drive so please see the links on the end of this post.

I then thought the micro USB charging port flex is causing a short circuit and so i completely disconnected that and the overheating problem still occurred.

Then i disconnected each and every component one by one and still the same thing on the motherboard keeps overheating excessively within seconds of connecting the battery to the motherboard.

Now Ive completely removed the motherboard from the frame and Ive connected the battery to it and same overheating issue.

Now Ive reconnected just the micro USB charging port back to the motherboard and attempted to plug a charging cable into the port and exactly the same thing still overheating excessively.

I really do not want to replace my motherboard simply because of the data on the device etc.

Can someone please tell me what the red circled item is in my image so i know what is overheating!

Could it be the CPU?

Is there ANY other way to replace JUST that part, even in china? Can anyone advise or help me?

Many thanks to the people who patiently read this and helped.

Kaiser
London, UK

https/drive.google.com/open?id=0B_yS5Xu6zOoESm5KYTZEOHJTZnM

https/drive.google.com/open?id=0B_yS5Xu6zOoEaDJRYWU2Z2Z3ZG8

https/drive.google.com/open?id=0B_yS5Xu6zOoEbGwtZDRyMUkxblU

https/drive.google.com/open?id=0B_yS5Xu6zOoEdDFwRnhfazVRd0k

https/drive.google.com/open?id=0B_yS5Xu6zOoEdjNPanBuSDBtV0U

 

[lito771]

Hi, Kaiser,

I got one sm-t710 with the exact problem as yours. I am going to remove that shield to get chip numbers and will try to replace it, when I will got replacement part. For that job special tools are needed and some experience.
Do not play with new battery when having this problem, because you will kill it. When I got mine - it did not power on because battery voltage was below 3,25V, which is level when chip cut of battery to save motherboard from damage which can appear from low voltage.

Maris

 

[jotapeg_2003]

Hi Maris

Were you able to replace the chip below the shield?

John

 

[lito771]

Hi,

I have re-soldered old one and soldered new one. But unfortunately hot air flow was to strong and blow away 2 small capacitors. I was not able to solder them back so far (need better microscope) and check if that chip work.
Will let you know, when I will have time to finish this tablet.
Chip is SM5703 and price was around 3 Eur/pcs