Battery Connector on Note20Ultra main board - Samsung Galaxy Note 20 Ultra Questions & Answers

Hi, I would like to ask if the thin tracks/pads are essential to powering up the phone? I'm guessing they are temp sense and something else?
Backstory: my phone had saltwater entering the case after the adhesives went loose. The battery connector burnt out and the thin track/pads got ripped off.
My goal is to try to power up the device long enough to recover my data.
The photo below shows the current state of the board. I can cover the exposed copper with epoxy, but will have trouble soldering onto the exposed copper vias (the dots) that were orginally below the pads. Picture shows some solder on the copper vias but it doesn't work as well as having pads. The battery connector component is a new one, and I have gotten a new battery as well.
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Questions
1) Are the thin tracks/pads are essential to powering up the phone?
2) Can I just power up the phone with just the main 4 pads?
Many thanks.

Related

Wireless Charging contacts on back of the phone question

Quick question.
So, on the back of the phone are 6 contact points variously positioned above and beside the battery.
I know they are used for charging wirelessly when a Qi cover or receiver are installed. However, they only use 2 of the contact points, so what is the functionality or possible uses for the remaining 4 points?
In the picture you'll see the red arrow points to the 2 points side by side used to for wireless charging. The other points I've indicated by placing a box around them for identification.
Does anyone know what they can be used for?
Thanks
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Original Flip Wallet Cover.
royy7 said:
Original Flip Wallet Cover.
Click to expand...
Click to collapse
Original Flip Wallet with wireless charging...
IF it's available it will be around the $95 mark....

[TEARDOWN] Looking for thermally conductive tape: even ifixit doesn't go that far ...

I bought a replacement midframe for the OPO:
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Unfortunately, the frame (like any other I found on other sites) doesn't come with the black thermally conductive adhesive transfer tape (cf ifixit teardown at step 19):
My question is where to buy this kind of tape? I've searched the web to no avail, but that might be because I'm not using the right words?
Any insight welcome!
@valkandroid Something like https://www.sparkfun.com/products/10561 ?
ketut.kumajaya said:
@valkandroid Something like https://www.sparkfun.com/products/10561 ?
Click to expand...
Click to collapse
It is the right thing for a replacement copper sheet, indeed! Thanks! :good:
But then my two cents is that it won't do as a replacement of the black film you can see on there under the tweezers (you'll find the same kind of film/tape at the back of the frame):
Pic from www.ifixit.com (ifixit OPO teardown, step 19).
EDIT: found this on 3M:
Not sure that would do the trick though ...

[Caller Echo] [Tip] Before replacing your entire charging port/mic flex...

For those of you that run into mic issues where your caller reports hearing an echo of themselves, be sure to check whether or not you've accidentally switched the rubber doodads for your top mic (GREY) and bottom mic (BLACK).
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I recently purchased a bare bones screen assembly and while in the process of moving my previous Nexus' innards, I accidentally switched the two. For the longest time, I've tried flashing OS's, stock ROMs, and even replaced my entire charging port/mic flex assembly as recommended by others here. All helpful tips and suggestions and narrowed down possible causes.
So for those of you with this issue, learn from my mistakes, this little change will save you time, money, and from days of head banging and hair pulling.
Hope someone finds this useful and informational, even if it was something so minuscule and seemingly irrelevant.
:fingers-crossed:

Is my screen replacement faulty?

Hi,
I shattered my screen on my OnePlus 6 and decided to buy an screen replacement. I should also add that I made sure to buy an "OEM AMOLED" screen, which is quite expensive, but I don't know if I really received an "OEM" replacement. The problem is that the screen ribbon cable seems to be to long But it might work even though...
Here is an image taken from an screen replacement video where you can see the ribbon:
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And it looks like my phone also uses such a cable:
But the replacement I received has a long ribbon cable (which skips the "OP6 main flex cable" which is like an extension cable from the daughter board to the main board):
Is the replacement genuine and can I use it? It seems like it ends up at the screen connector on the main board...
Or should I contact the company?
Many thanks,
// DevelLevel

Soldering iron and LiPo charger saves the day

So my wife soaked her HTC U Ultra phone paddle boarding in a river. We have the phone but it won't charge. The plug sparks and gets super hot really fast, probably shorted.
We tried cleaning it with some electronics alcohol spray used for removing flux, but no such luck.
So I broke into the back of it (shattering a thin layer of glass, wow!) And started disconnecting things trying to pull it up.
We knew the battery was dead because of being shorted, and the dead USB C connector wouldn't let us charge... so I found the test pads on the PCB for the battery and soldered on some jumpers.
Hoping it would come up I used a 3.7v 1S LiPo hobby charger to see if it would power up with a charge.
It worked!
She was able to use the Files app to xfer to an sdcard and saved her pictures of he trip to Orcas Island!
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