Galaxy S4 I9506 Post Repair Wifi Terrible Range Problems - Galaxy S 4 Q&A, Help & Troubleshooting

Hi guys,
I haven't found anything like this issue before in a thread, so sorry if I missed it.
My S4 has been going through these weird episodes lately with its wifi. Every couple of days after wifi is working, out of the blue the wifi range just craps itself to the point where I have to be with a meter of the wifi source to get signal and use it normally. The signal only picks up at a max range of 2 meters. A couple of days later it goes away and then wifi works fine for a few days and the cycle repeats itself.
2 months ago the phone went to a repair shop for a new screen because it was dropped and destroyed. The wifi issue started a month after the repair completely randomly. I'm just wondering whether or not this is a coincidence or a loose part because the repair shop believes that I have to get the wifi chip replaced. Could it be something less or are they right? I have ruled out software issues by completely wiping and reinstalling my custom ROM and no one using it has reported similar issues.
Thanks guys, your input is greatly appreciated!

Related

constantly dropping service

I've had my wizard (cingular 8125) for just a little but over a year, but this past month I've had some abnormal issues with it.
I've dropped this phone a few times, but randomly this past month I have noticed a severe amount of service dropping in different forms.
Sometimes I'll be on the phone and it will randomly drop and start searching for a signal, in a well serviced area. Sometimes I'll be texting, and it will have service(2-6bars, enough for texting) but it will refuse to send the message, and when I try to call, it says invalid sim, and I have to reboot.
Sometimes If I am lucky, when the service drops it will pick it up within 20 seconds, it can take up to 5min, and sometimes I have to restart it.
This phone has been stock up untill this problem started (no rom flashing/anything) I tried unlocking it and trying different roms on it recently as a last ditch effort to fix this annoying problem. If anyone knows of a solution to this problem, I'd be really appreciative of it, otherwise im getting a new phone
While my first instinct is to convince you to sell me your otherwise functioning phone on the cheap, I must resort to being the good guy (or else get spanked by the mods...)
There is a registry fix for the kind of signal dropping you're describing. I'm surprised you went for so long without experiencing the problem. I did almost right away when I got mine last year. You should try it first, if you haven't already...
I think this is the one I used:
http://www.pocketpctweaks.com/pocketpc_tweaks/fix_drop_calls
i don't think its a Rom problem,as signal reception is not depended on the Rom,its an OS,rather its more depended on the Radio Rom (GSM) of the phone.Usually,by upgrading the Radio Rom improves the signal reception quality.Instead of flashing different roms,try to flash different Radio Roms and check if it improves the signal quality.
But,here,I think,perhaps,the problem lies more on the hardware part then the Radio Rom. as you say,it has been dropped a couple of times,it may be the the External Antenna cover has lost proper connection with the Internal antenna connection.Check the fastening clips which snap in to secure the External antenna cover to the internal are properly secured in and have not come off, are not loose or broken,which might be causing it to not having proper connection.
Cheers!
Well i tweaked those settings and tore this baby apart, and honestly the service was dramatically improved for this entire week, untill thursday, when service began dropping and it began to start telling me my sim was invalid. So I'm kinda lost here, it seems no one else has had this type of issue....
And on a sidenote I am unable to connect to gprs or edge to send pictures via mms. I noticed this after I started flashing different roms, so I think its software related. I did however download that .cab package floating around that has all the cingular media net settings. But when I try to send a picture my phone just seems kinda lost lol
bump!
I reflashed the rom to the official htc cingular rom, and that fixed the edge/gprs issue, but service is still bad.... Id like to try some different radio roms before totally giving up hope on this thing, but this site has seem to take down its ftp.... anyone have any wizard radio roms uploaded? preferably ones that work well with cingular/ at&t here in the US.... thanks
bump... guess no one has any ideas=(..... but since the ftp is back up ill try some radio roms

[Q] nexus 4 signal/radio problem

Hello,
During the past couple of weeks my nexus has been losing its cell signal every few minutes. It's like clockwork. If I completely wipe the room and start from scratch, its fine, but after a few days it always starts to do it again. Has anybody ever seen this? It was doing this on paranoid android, so I decided to leave it and go back to aokp. No luck. Cache wipes do nothing, rebooting it is sometimes a temporary fix. I am not using a custom kernel, and I don't ever flash new radios!
Any ideas? Thanks!
Sent from my Nexus 4 using xda app-developers app
I have similar problem: Signal failure if I charge him.
I had nearly the same issues with my N4! But I don't life in the USA! I'm from Germany...
Over the he last 3 weeks me and my girlfriend lost network signal every 3-5 minutes... First times I was also wondering if that's because of a new rom I flashed or if the baseband doesn't fit with some of my kernel/rom combinations.
After 3 days I recognized that my girlfriend got the also this kind of issues, but she on a galaxy nexus!
So I started searching the Internet if other people have the same problems (especially the same issues but not related the N4)!
So in our case the problem is Vodafone Germany. Vodafone is building a new lte/4G/umts infrastructure and because of this they are shut down some of their network antennas in my area! After switching my phone to a 2g connection most of the problems are gone... And my mobile network speed also! :-\
So try to switch to 2g and see if it's fix your situation!
I get some money back from my provider because of the problems!
But the most important thing is that my N4 is ok!
Same problem as Ümit only losing signal when charging the phone. Does anyone have a potential solution?

Wifi and Bluetooth will not turn on... Stock ROM

I was having problem with bluetooth and wifi turning off on a recent replacement phone from asurion and being unable to get it back on, got wifi fixed and then bluetooth would not turn on so then sent me a second replacement.
Was working fine for a month or so and started getting some similar symptoms this morning...
Wifi will not turn on. Bluetooth will not turn on. They simply toggle over stay gray and then go back. When I look at notification setting shortcut bar wifi shows as light green after initial boot then goes to disabled after I try to toggle.
I just did a factory reset... thoughts/ideas? Could this be hardware and is this common?
Thanks in advance.
IMO my money would be on Asurion buying refurb phones from the carriers and sending those out as replacements.
Casual testing won't weed out the lemons with come-and-go hardware problems.
Stuff comes in as a lemon, gets "tested" with the "seems OK" result, and goes back out as a "refurb" lemon.
Seems like as time marches on for a particular phone model, the ratio of lemon refurbs to decent refurbs probably would only get larger.
I have the same issue. But I've had my note 3 for a couple of years now. It's the same one I've had and running the same ROM for the last year or so. I'm running biggins 4.4.2. Everything ran great up until about a month or so ago and now the WiFi won't hardly connect and when it does it constantly disconects. And it keeps randomly rebooting also. It's really aggravating.
Sent from my SM-N900V using Tapatalk

WiFi Issue - NBD90X, Sleep/Doze cuts WiFi, Bug or RMA?

(only found one thread with this issue, from nov 2015, with zero replies: http://forum.xda-developers.com/nexus-6p/help/wifi-issue-nexus-6p-t3244411)
So, let's go.
Nexus 6P Android N Oct 5th, Build NBD90X here.
Bought on 4/10/2016, one week ago, in Germany, after Pixel announcement (too expensive).
Manufacturing date: 11/17/2015 (bit old, maybe refurbished?)
Behaviour: At first, connects normally to WiFi. Connection stable for a bit, so it is not a reoccuring "it reconnects every 60 seconds and can't hold the connection" thing, it is very different.
In following situations it drops Wifi:
- When screen goes off for more than 1-2 minutes
- when I cast something (YouTube, Twitch) to my Chromecast and the Nexus screen turns off after 60 seconds, the Cast continues, but when I wake up the phone, Youtube or the other apps say connection lost, so I can no longer control the stream. I tap "retry" but it does not work and I have to restart phone, reconnect to Chromecast and stop the cast that way. Super annoying.
- And, not often but happens: even when i scroll through Twitter, it randomly disconnects and reconnects after about 10-20 seconds.
Things I have tried:
- different APs and Networks (home, at work, at a friend's house)
- changed Wifi channel, 2.4, 5ghz, .. basically just tested every setting here at home. since problem occurs also at work and other networks, can't be the cause.
- wiped system cache, nothing
- reset network settings on phone, several times, nothing
- WPS, nothing
- under "Location", advanced, disabled the WiFi and Bluetooth scanning stuff
- switched from "always" to "only when plugged in" at "stay connected to wifi" setting. changed behavior to: not reconnecting to WiFi when woken up. Instead, it finds all networks BUT the one it remembers and should connect to. I have to turn wifi on and off, even that does not help sometimes. then I have to reboot.
- maybe some measures I even forgot about now, but basically everything ever, anywhere, recommended...
- eventually I factory reset the device on sunday, started with "set up as new device" from scratch, wasted another few hours to eventually have the same result.
I used all my data plan because "Android System" downloaded so much in the background in the first night (when it should have been in Wifi of course), have to turn cellular data off now to not pay for extra megabytes (germany..).
so I don't get any updates or push mails anymore because mobile data off and it drops Wifi all the time. this is unbearable.
Same router with my previous Desire HD, LG G3 and Nexus 5X: all with no problems.
My big question is: is this a software issue that will be resolved or do I have a defect device? I need to know fast because I have 14 days return time at my reseller and 7 are gone, 4 of them I tried to fix the problem. The old manufacturing date made me questioning the device in general. So is this software-related and will be fixed or should I RMA my device?
I also posted this on the android forums: https://code.google.com/p/android/issues/detail?id=206311 (look at the very helpful answer by the developer xD ... )
Having the exact same issue since updating to NBD90X last Wednesday. So glad I finally found someone else is having g this issue. Has to be software, right?
I made a new issue report on code.google.com (issue 224971). Please report back if you find a solution, my data plan is wrecked already.
EDIT: Wi-Fi and Bluetooth just powered off while I was browsing XDA in chrome. So it happens randomly, not just when phone is at idle. This is really bad!
the same issue after update NBD90X
Same.
Sent from my Nexus 6P using Tapatalk
I didn't face this issues. Maybe your device is defective. Return it and buy a new one.
gibrilm said:
the same issue after update NBD90X
Click to expand...
Click to collapse
Please add your experience to the code.google.com page listed above (issue 224971) so they can see it's not just one or two people.
So, any news on this issue? If it's only three people in the world, i will return my phone on monday and ask for a replacement. Still in 14days-return-policy timeframe.
Although this looks like a software issue, waaay too few people are reporting that issue to justify keeping the device.
Annoying as f'ck but better safe than sorry. Hopefully the replacement will be of a newer manufacturing date without any issues.
Firstly, this is weird lol, I bought my 6P in August of this year and my manufacturing date is exactly the same as yours.
Though I bought mine from an authorized retailer, I doubt it'd be refurbished, anyway, I did a clean flash of NBD90X and everything is working well for me. No issues whatsoever aside from the slightly crappy battery on Nougat.
---------- Post added at 06:50 PM ---------- Previous post was at 06:49 PM ----------
DocBrownie said:
So, any news on this issue? If it's only three people in the world, i will return my phone on monday and ask for a replacement. Still in 14days-return-policy timeframe.
Although this looks like a software issue, waaay too few people are reporting that issue to justify keeping the device.
Annoying as f'ck but better safe than sorry. Hopefully the replacement will be of a newer manufacturing date without any issues.
Click to expand...
Click to collapse
Did you clean flash the NBD90X factory image or take an OTA?
Hi,
I got it from a pretty big vendor here in Germany, pretty solid, 6000+ reviews with a 1,5 (1 best, 6 worst) rank at our best price comparison site. Ordered a LG G3 back in 2014 there and a Lenovo Thinkpad for my gf, everything perfect.
No, I got it, it had Marshmallow, then I had to install two security updates before it reached the "preparing for 7.0" update (20mb or sth.), then I got N and then, one day later, D90X appeared.
But I did a factory reset after having the issues.
You think I should try a clean flashing of the NBD90X? I thought I tried everything, but actually doing that didn't come up in my mind.
/edit: Did your packaging come with the papersleeve around the white plastic, where the S/N and the big P logo is printed on etc.? Cause my packaging was missing that. Only the plastic with transparent tape to hold it together. That is actually the only reason why I thought about "refurbished" because everything else looked completely new, no fingerprints, MM 6.0, etc. But it made me wary from the very beginning.
I just did it and wiped again, installed from scratch. Factory Image NBD90X... as clean as it gets.
After going through all the steps and wasting another chunck of time, it took 5 minutes until the first disconnect. While screen was on, while downloading stuff from the Play Store.
I am so annoyed by this phone, can't even tell. Two weeks of troubleshooting, nothing worked.
My connectivity just dropped dramatically. Had been on NBD90X since about 10/11. Our other does not exhibit this problem, both are almost set up the same. I then set mine up exactly like hers and still connected in kilobytes. Project Fi said they would send a refurb and I'm not excited over that. I've got 24 hrs to decide now. If it takes an hour or to to download an update that the other phone can do in a minute I guess mine is a lemon. Doc I just posted several places about this and my troubles started about the same time as yours. Also just installed the factory image and there's no improvement here.
Thanks for your report. Got myself a replacement device 10 days ago, no trouble since then. The old one went back and I got my money back.
Def something wrong with the WiFi chip or whatever.
Loving the phone now, 7.1.1 runs smooth af.
DocBrownie said:
Thanks for your report. Got myself a replacement device 10 days ago, no trouble since then. The old one went back and I got my money back.
Def something wrong with the WiFi chip or whatever.
Loving the phone now, 7.1.1 runs smooth af.
Click to expand...
Click to collapse
Cool. Glad yours works now. I went ahead and ordered the replacement, I'll scrutinize that refurbished unit when I get it. Being the weekend it won't ship `till Monday. Didn't realize how much I depended on this darn phone until mine quit working right!
Well if it helps just one, I post this.
Our power went out for `bout an hour. Later I was still frustrated with the 6P and started messing with it, damn it was fast again. Went to sites immediately, went to the playstore and tried to get an app that I had given up on getting earlier and ~10Mb was downloaded and installed in 4 or 5 seconds!!
I hadn't even tried using the phone when I was out the last couple of days. That plus the fact that my Asus OnHub was down, it probably lost it's cache. Kept the settings but damn I'm gonna unplug it for a min or two the first of each month now!
Cancelled the replacement..... nothin-to-see-here-move-along........

Wifi problem

Hello guys, i see there are similar thread, but my problem isnt exactly like others i saw so i am making new thread.
About week ago, my LG G2 (2 and half years old), was in mini bootloop (for about 5 mins, it couldnt pass LG screen) but then it started working normally. Few days later, phone restarted it self and WIFI died. Bluetooth works fine, gps aswell, data works fine. Everything but WIFI and hotspot.
Wifi works for 2-3 minutes after starting phone, but than it dies. Somethimes it wont turn on, while othertimes it says looking for wifi (and never finds one).
I thought it might be software problem, so i did everything i could to make sure its not. So it could be only hardware.
Now my question is, does it has to be logic board or prehaps its some anntena or something that could be changed separatly?
Thanks
I have the same problem on mine but I have unlimited 4g mobile data so i don't use it at all.
I find this video and a lot of people say it's work.
https://www.youtube.com/watch?v=6_0jzp65eLY

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