on the 5G version: questions about the thin flex cable...

[Android Central Question]

one end of the cable connects on the main board, and the other end connects down towards the bottom of the phone (the end with the charging part). Since this is a 5G version, the cable is actually a "T" cable, with a connection over to the 5G antenna on the side of the device (below the volume and power buttons). Here's the questions:
(1) besides the 5G, what does this cable do? If the cable is removed from the phone, what won't work?
(2) if the cable is connected top and bottom, but not on the 5G end, will it cause any problems besides 5G not working?
(3) Can this cable cause SIM issues?

Why am i asking? because while changing the battery i wrecked this cable in two ways: (a) mangled the 5G connector while taking things apart, and (b) mangled the cable connector on the main board end while putting things back together. I can change out the cable, no problem, except what's worse is I'm pretty sure I (c) hosed the main board connector as well. So, I'm running the phone without this cable at the moment, and USB charging isn't working, which might make sense (but it charges wirelessly, so this is fine for now). the other problem is that I'm having SIM issues. trying to find out if the SIM issue makes sense for this cable, or if there's something else wrong?

 

[Kizzy Catwoman]

Hi there,

It would be a big help if you told us what phone make and model you are referring to. There are many different 5G capable phones on the market so we need to narrow it down to help you.

Please register for an account so we can help you further. With a guest account, you can't reply. Thanks

https://forums.androidcentral.com/showthread.php?t=409154

 

[androidphobia2]

Sorry, Galaxy Note 20 (N981U), i thought I was in that section of the forum already. Color me noob.

 

[mustang7757]

Sorry, Galaxy Note 20 (N981U), i thought I was in that section of the forum already. Color me noob.

Hi, welcome to AC !
While mos us here dont do phone repairor have diagrams, best to check ubreakifix website or youtube video of tear down

 

[mustang7757]

[Moved this to Note 20 forums]

 

[mustang7757]

[So you know i deleted your 2nd post , we can only allow 1 post about same topic here and this is your original]

 

[androidphobia2]

thx for response. unfortunately, lack of detailed info elsewhere is why i'm trying the forums. teardown vids don't get into what anything actually does. ubreakifix has zero tech info on their site. any clue where there are forums that actually talk about the phone guts?

 

[mustang7757]

thx for response. unfortunately, lack of detailed info elsewhere is why i'm trying the forums. teardown vids don't get into what anything actually does. ubreakifix has zero tech info on their site. any clue where there are forums that actually talk about the phone guts?

Can try a search on YouTube

 

[mustang7757]

Heres one video

https://youtu.be/gytQtFIEGlw

 

[androidphobia2]

Ultra unfortunately. Again, appreciate the responses, will keep looking for actual tech forums.

 

[mustang7757]

Ultra unfortunately. Again, appreciate the responses, will keep looking for actual tech forums.

How about here ?

https://www.ifixit.com/Teardown/Samsung+Galaxy+Note+20+and+Note+20+Ultra+Teardown/136102