Announcement

Collapse
No announcement yet.

Samsung S21 FE wifi not working

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • mon2
    replied
    Well done! Apparently a very common problem with this model.

    Leave a comment:


  • giulio93
    replied
    Yesterday I reflow the gray chip and the wifi come back to life!
    Thank you all for your support

    Leave a comment:


  • mon2
    replied
    Hunt for an IC that may look like the following:

    https://www.aliexpress.com/item/1005004304800748.html

    Leave a comment:


  • giulio93
    replied
    Originally posted by mon2 View Post
    Review the post from amylen97 on page 1:

    https://eu.community.samsung.com/t5/...s/td-p/9010242
    I've tried anything wrote in the link but doesn't work. I think is a hardware issue. I still did not understand where the wi-fi chip is. I woul try a reflow in the case

    Leave a comment:


  • mon2
    replied
    Review the post from amylen97 on page 1:

    https://eu.community.samsung.com/t5/...s/td-p/9010242

    Leave a comment:


  • giulio93
    replied
    Originally posted by mon2 View Post
    Is that a switch or a broken part of some type? Unable to see it clearly. Perhaps not related to the wifi fault.

    Here is a good video on this model:

    https://www.youtube.com/watch?v=T5qQjtJrxzc

    The wifi cable should look like this:

    https://www.aliexpress.com/item/1005004556516691.html

    Was this unit water damaged? It is possible that the BGA balls are corroded if there was liquid damage to the phone and the WIFI module is not visible to the logic board.
    The wifi cable looks fine to me. The phone has no liquid damage. Do you know where the wifi chip is located? If it is a BGA, like I think, must be visible on the board

    Leave a comment:


  • mon2
    replied
    Is that a switch or a broken part of some type? Unable to see it clearly. Perhaps not related to the wifi fault.

    Here is a good video on this model:

    https://www.youtube.com/watch?v=T5qQjtJrxzc

    The wifi cable should look like this:

    https://www.aliexpress.com/item/1005004556516691.html

    Was this unit water damaged? It is possible that the BGA balls are corroded if there was liquid damage to the phone and the WIFI module is not visible to the logic board.

    Leave a comment:


  • giulio93
    replied
    Originally posted by mon2 View Post
    Did not see this till now. Mostly look ok but do review the attached.

    Click image for larger version  Name:	review.png Views:	0 Size:	1.51 MB ID:	3545690
    the connector is soldly down in plase.
    In the "missing spot" i see 2 micro smd.
    I don't understand the "switch". It is a question?

    Leave a comment:


  • mon2
    replied
    Did not see this till now. Mostly look ok but do review the attached.

    Click image for larger version

Name:	review.png
Views:	68
Size:	1.51 MB
ID:	3545690

    Leave a comment:


  • giulio93
    replied
    Originally posted by mon2 View Post
    Post clear pics of the flex cable.
    Do you see something wrong?

    Leave a comment:


  • giulio93
    replied
    Originally posted by mon2 View Post
    Post clear pics of the flex cable.
    My phone don't have nice macro. I Will try, let me know of i have to focus on a particular detail

    Leave a comment:


  • mon2
    replied
    Post clear pics of the flex cable.

    Leave a comment:


  • giulio93
    replied
    Originally posted by mon2 View Post
    What is the history? Are you sure the fault is hardware related?

    https://eu.community.samsung.com/t5/...g/td-p/8986840
    I tried to hard reset but the problem Is still here, so I suppose it's and hardware problem.
    So the problem could be the flat cable (te he G990U_FRC_R02?) or the commectors of It in the 2 board?
    Both the flat' connectors and the mobo's connectors seam fine to me

    Leave a comment:


  • mon2
    replied
    What is the history? Are you sure the fault is hardware related?

    https://eu.community.samsung.com/t5/...g/td-p/8986840

    Leave a comment:


  • giulio93
    replied
    No one can help me?

    Leave a comment:


  • giulio93
    started a topic Samsung S21 FE wifi not working

    Samsung S21 FE wifi not working

    Hi everyone, I have a Samsung S21 FE with no wifi. I can't see the classic antenna cable so i suppose it is integrated in the circuit of the mobo. Can anyone help me with this?
    I have very good skills in soldering and stuffs.
    Thanks
Working...
X