Samsung tab 3 check this if no power and no charging

[Yanko_]

Same tablet same problem, same solution, thank you!

[kndmdbo]

I cannot see how you connect the power supply cables, or whatever, and the USB meter to see the voltages and currents. Thanks for your answer.

[garo]

good evening sir, i have a samsung tab 3 model SM-T2105, the tablet is completely dead, no charging and no power .i have tested the voltage at the battery connector on the motherboard after disconnecting the battery and connectinng usb cable .and the meter is jumping between 3.6 v and 2.4 v, its constantly jumping non stop .i think there is a short between the usb port and the battery connector on the motherboard .can you please help me with some advice .thanks.

[emiliend.]

Hi Sorin,

First of all thank's for the incredible work you've done through all those videos.
That's gold! We learn a lot from you, so big thank's for sharing your knowledge.

I'm stuck with a P5200 samsung galaxy tab 3 10.1.
I' ve been checking charging port: OK.
Tried to charge the battery directly with an adjustable power supply just like you do in the video (5V / 3A).
Battery is 4.3V (fully charged) but still nothing.
I can't make it recognized by windows via USB.
The only strange thing is if I hold power up button and plug USB cable, windows tries to recognize it (hear the good connection sound), but then it tells USB device is not working properly.
If I do the same thing with power supply, it charges at about 1.3A, then it decreases indefinitely.
But still nothing happens. Still black screen.

I've looked at the board, there's a resistor (R010) which seems to be dead. Could this be the issue ?
How can I be sure ?
I'm a big beginner into this !

Thank you!
Regards.

[cornelltiktok]

I have Samsung tablet 3 I thought I over charge my battery but its good but it's still can't turn on but what else gives the battery power

[PerRo]

What I can use to perform this battery charge ?

[GrennKren]

for my problem is the battery still draining when not being used, even already turned off. The Voltage from pin connected directly to battery still showing 3.7v

[youcefghedir]

Hello esteemed professor, my phone is Samsung, the screen is black and there is flickering in the screen with ringing and the LED is blue and green simultaneously

[tiredugandan]

Why won't a tab battery level increase on charging even when the battery terminal is showing 4.2v??? Am confused. Plz help

[yannicg]

Hi Siron,
I just got the 10.1 version (P5120) from the tablet you got in the Video. A Family member gave it to me as they weren't using it for nearly 2 years as it got rly slow towards the end. When i tested it directly at their place it was completely dead but after leaving it for 30min at the charger (no charging symbol etc) I decided to turn it on with the Odin mode combination, it flashed brightly in a violet-white colour for 2 times, after that it went into download mode, after 30sek I decided to try and boot it up but during the splash screen it just turned off and never turned back on ever since. I already changed out the charging port as the old one seemed to be demaged but still nothing. I also tried dis and reconnecting the battery but even that didn't help nor did any button combo I tried. I came to the conclusion that probabrly my battery is completely discharged and that the violet flashing was probabrly the SOC doing weird things as it didn't have enough power when I managed to start it. I dont have any measuring device to measure how much current if any is going into the tablet but judging by your video there is a little bit going in there, is it eventually going to charge the battery after maybe 2-3days to a point were u can turn it on or will this just be wasted time? I might also add that the tablet was never dropped nor did any intensive programs run on it like 3d games and the water indicators on the backpanal also weren't triggered and as the original charger always was used I rly doubt that the screen or board are demaged, also all ribbon cables are fine, no tears or similar visible damages and I re inserted them all.

[zairi]

So the problem is battery have no enough power?

[wojtekkowal]

The battery is fine ? He he, so why voltage drops belów charging level ?

[alaster]

How can you charge for that, ?!? it’s priceless

[axenz]

Hi, my Samsung tab 3 no power and cannot power on, send to a mobile shop and they said eMMC chip need to replace. What do you think my Tab problem?

[mathieuclerte]

I have 2 batteries, one charged at 3.4v and the other at 4v ; I have even changed the USB charging cable with a new one, but still same problem, it does not power on. Any idea ?

[jim]

Hi I think I have the same / familiar problem, could you help me please. It's would be greatly appreciated.

[sachinsonawane]

My phone also have same problem but every time mechanic repair it but this time I went to mechanic too late so my phone is not working what should I do pass helpp

[JunardMuhammad-mzcn]

Patulong Naman Ako pls . Meron akung LG Ng tuchcreen nag oopen pero ayaw mag tuloy Ang open pls patulong

[mjpink]

so you cannot charge it without opening tha tab3?

[serchmarc]

how the hell i can inject 5v 2.5Amp to the battery if i dont have that expensive thing boy!!! dam!!!!