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[Q] GT-N7000 varying phone signal after usb port replacement

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3clectic
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(Last edited by 3clectic; 26th August 2013 at 04:45 PM.) Reason: didn't finish part of the post, so this should make more sense.
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Question [Q] GT-N7000 varying phone signal after usb port replacement

Hi,


The current problem is that my phone signal keeps cycling between full bars and no bars, or is not connected to a service. Checking the phone signal strength, it seems to be hover around -100 db or so.

So I did a search on the closest thing that I could find was this one.

http://forum.xda-developers.com/show....php?t=1894486

So what I have done is the following:

1. Had an issue with charging and holding a charge when upgraded to Xperia X ed rom
2. Did some research and figured the easiest option would be to reload the first ROM and check if the issue still exists
3. Reloaded nandroid backup to the original, same issue
4. Cleaned out the USB port using some thick paper, rubbing alcohol, compressed gas and small vacuum, same issue
5. Did some more research, figured that it would be easy enough to replace the USB board, so replaced that (reconnecting the antenna)
6. Turned on phone and used the first custom rom on there, everything seemed to work fine but I didn't check the signal strenght
7. Upgraded to SweetROM v10, only then noticed the signal issue, unscrewed the back and checked the antenna connection, seems solid
8. Tried to use it for a day and it's really bad, most of the time inside, I can't get any signal but outside, I normally get full bars
9. Did some more research, remembered something about modems, changed the modem from XXLT3 to XXLSO, just incase it was that, still the same signal issue

So wondering if anyone can help me with the next steps. I figure I am gonna tinker around with it a little, to see if it is a software thing. I figure what I will do is the following:

1. restore back to nandroid - check the signal issue
2. if still there, maybe try a stock ROM

Maybe take the cover off again and check the antenna cable, could have damaged it pulling it back in the first time, however, it doesn't make sense that signal strength would not change that much but the reported signal would.

Any help would be great.
 
3clectic
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Anyone with any ideas?
 
SpyderTracks
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Where did you source the replacement part, is it stock samsung and are you sure it's the same revision?

Sent from my GT-N7000 using XDA Premium 4 mobile app
Sony Xperia Z Ultra C6833
Stock .257 Unrooted

Samsung Galaxy Note GT-N7000, iPhone 3GS, HTC Touch Diamond, HTC Touch Pro, HTC Universal, Sony Ericsson P990i, boat load of nokia's for a long time.

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maktama
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i have totally in same position. i have damaged usb port, couldn't charge. then buy an 5$ usb bord that same rev with original one. But reception is totally unstable. Especially when driving, reception have (nearly) always zero bar. And inside building reception is half of original part and also unstable. Tried most of what u tried, no luck. i think i have to repair original one(i opened inside the phone, all usb port pins broken from thecorner point. Just have to replace usb port )

GT-N7000 cihazımdan Tapatalk 2 ile gönderildi
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SpyderTracks
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So long as you use a stock replacement part and not the eBay alternatives, you'll be fine. These problems occur with the imitation parts.

Sent from my GT-N7000 using XDA Premium 4 mobile app
Sony Xperia Z Ultra C6833
Stock .257 Unrooted

Samsung Galaxy Note GT-N7000, iPhone 3GS, HTC Touch Diamond, HTC Touch Pro, HTC Universal, Sony Ericsson P990i, boat load of nokia's for a long time.

I love this site!!! Thanks to all
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nokiamodeln91
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true.. i had some problems with charging the phone and got the USB module replaced today from the Service center and all ok..
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maktama
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Quote:
Originally Posted by nokiamodeln91 View Post
true.. i had some problems with charging the phone and got the USB module replaced today from the Service center and all ok..
How much did it cost? Just for info.

GT-N7000 cihazımdan Tapatalk 2 ile gönderildi
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nokiamodeln91
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$12

Sent from my GT-I9500 using xda premium
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3clectic
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I was pretty sure it was the same revision but it could be imitation. I suppose will have to take it in and get them to do it. Just it takes them weeks to do this type of stuff.
 
nokiamodeln91
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Not sure where will it take weeks. I got mine did in just under 2hrs.

Sent from my GT-I9500 using xda premium

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carrier signal, signal antenna issue, signal strength varies, weak signal strength
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