Skip to main content

The Galaxy S7 Edge is the curved-screen variant of Samsung's 2016 flagship phone, the Galaxy S7. Announced February 2016 and released on March 11. Model SM-G935.

344 Questions View all

No service after screen replacement?

I work in a repair shop. I just did a screen replacement on the s7 edge. After getting everything back together and turned on, there is a circle with a line through it where the signal bars are supposed to be. I did damage the coax cable and gave tried numerous other cables. I have taken it all apart multiple times and triple checked my work but to no prevail. Any help will be highly appreciated.

Answered! View the answer I have this problem too

Is this a good question?

Score 6
2 Comments

I have s7 edge .black. i got a purple line on screen. I replaced with new screen less than month the line come back again i tried to fix it by pushing on flat cable ibt i have made it not work anymore.

by

I work in a repair shop. I just did a screen replacement on the Samsung Galaxy S9 Plus FD/S Model. After getting everything back together and turned on, there is a circle with a line through it where the signal bars are supposed to be. I did damage the coax cable and gave tried numerous other cables. I have taken it all apart multiple times and triple checked my work but to no prevail. Any help will be highly appreciated

by

Add a comment

4 Answers

Chosen Solution

Charge port assembly is the answer. Don't really understand why but with the new charge port everything is working as it should

Was this answer helpful?

Score 4

9 Comments:

I just replaced the screen and the charge port assembly on my galaxy s7 edge. I still do not have a signal. Any ideas?

by

Yeah. You damaged some part. Check the wires, and check all of your parts like : buzzer and up antena, you have all screws and all parts ???

by

More than likely the same issue I ran into, make sure the charge port is made for that specific phone model and carrier.

by

i have same problem and i fix it .USA version charging doc not support international version (charging port unit ) N4 and E4 check the correct model after it's work. because charging port unit comes with antenna

by

what version charging port is the US, N4 or E4 because I purchased a generic N4 and I get no signal!

by

Show 4 more comments

Add a comment

check the model number closely. a G935F charging/antenna flex will not work where a G935A was.

Was this answer helpful?

Score 1

1 Comment:

Is there any way to make the G935F frame and daughter board work with the G935A motherboard? I changed the lcd, frame and cover. Everything works perfect EXCEPT the phone! I cannot seem to find a solution to this other than do it all over with the correct parts.

by

Add a comment

I changed the battery on my GS7e, and after putting everything together, I no longer have signal. Sometimes it appears one bar 4G, but it doesn’t work. I then replaced the antenna but still it doesn’t work. what can I do?

I checked all the cables. Everything is where it belongs.

Was this answer helpful?

Score 0

1 Comment:

The antenna as in the cables coming from the charging board to the logic board?

Or the mid-frame antennas which are embedded in the black plastic covers that clip together with the wireless charging coil top and bottom?

Might want to check the spring connections for the mid-frame antennas as they are on the top of logic board and on the charging daughter board too.

by

Add a comment

Adding my 2 cents, I figured my issue was the same, charging port daughter board. I had changed mine out in hopes to remedy a microphone issue. The board is for the correct model, north america version etc, but I found once I compared they have different revision numbers on them. Put the original back in and no issues, so not a cord or damage elsewhere. working on a galaxy s9

Was this answer helpful?

Score 0
Add a comment

Add your answer

Bradley Goode will be eternally grateful.
View Statistics:

Past 24 Hours: 2

Past 7 Days: 14

Past 30 Days: 117

All Time: 21,536