galaxy S4 probleme netwerk and wi-fi - Galaxy S 4 Q&A, Help & Troubleshooting

I have a network and wifi problem on Galaxy S4 after put in the microwave signal is very low in both cases :confus:

You put your phone in the microwave?

Me too

Are you running stock a rom? Has it always had signal problems?

Microwave is the enemy of teresterial signals like mobile data and low-band signals like L/S/C Band. That's why you've a very low signal because your phone's signal conflicted the microwave's signal, who is stronger than teresterial signals.
Edit: Microware lol. Post edited.
Sent from my GT-I9500

Related

Nexus 4 Signal Strength Fluxuations

Does anyone have a problem with their Nexus 4 signal strength?
I have Bell Canada, which is supposedly has the best coverage in Canada, I live in the suburbs of a relatively large city and I often see no bars at all. I'm sitting on my couch right now and the signal strength is ranging from -97 dBm to -110 dBm.
Do 2.4 Ghz band devices interfere at all? I have bunch of portable phones and 2 routers, so maybe this is related?
Nexus 4 on T-Mobile
I am in Portland OR in an area of good signal according to T-MO but my nexus rarely shows any signal bars inside my house. This is my 3rd N-4. T-Mo says they have great signal in my area.... so what gives with this signal thing?
My reception has been wonky ever since the 4.2.2 and baseband update.
ccgabe said:
I am in Portland OR in an area of good signal according to T-MO but my nexus rarely shows any signal bars inside my house. This is my 3rd N-4. T-Mo says they have great signal in my area.... so what gives with this signal thing?
Click to expand...
Click to collapse
I get 1-2 bars in my house usually between 95-105 db, outside I get low 80's and full or near full at all times. Even though my bars inside top out at 2 I have still managed to pull up to 13 Mbps but thats on a sunny day. Didn't see any results above 9 Mbps today. I live on the outskirts of a not so major city so I can't really complain. One minute I'm pulling 10 Mbps and the other I'm only getting like 200 Kbps though, but it's all good enough for what I need it for and I can't complain since its only $30/month. I just transferred from Virgin Mobile after their "upgrade" resulted in me and many other of their customers losing data for the last 3 weeks and to this date its still not fixed! Their "3G" speeds were atrocious, I've pulled higher speeds off of T-Mobiles 2G network.
I hear a lot of us who are on 4.2.2 and baseband .48 have had issues so I'm thinking its either a major software issue with the radio firmware that hasn't been addressed yet in any revision or it could be a major hardware issue as well as I flashed .27, .33, and .48 and noticed no differences. I had to set my phone to WCDMA Only to get it to maintain a good connection, otherwise HSPA/HSPA+ would just cut out after 2 minutes of use and revert to 2G or have no data at all for 5-10 minutes. After switching to WCDMA Only this problem went away completely and I haven't lost a signal since. For whatever reason it picks up more adjacent towers as well on this setting.
I have that kind of problem also though I notice it only when the signal is weak.
It goes from -99dbm to -111dbm with no reason. My other phone (Defy) keeps a good -97 at the same spot without any fluctuation.
I will try to switch to wcdma only.

Signal Strength?

I am on [email protected] system. When using my old Captivate S1 I had problem with getting a signal on a local lake I fished but if I used my wife's iphone on same lake I got signal. I was wondering if anyone here that had earlier Galaxy models and had signal problems in certain areas have you noticed a signal improvement with the S4?
Thanks

Dissapointed in phone signal

Having just upgraded from the Xperia T to the Xperia Z2 there is only one thing that annoys me a lot. Comparing to the Xperia T, my Z2 has a much weaker phone reception signal. I work in another town and between home and work I always had a good phone signal with the T.
Now, on this same stretch of A-road, I have no signal whatsoever with the Z2. Same network provider, same sim card, same phone contract. Nothing has changed other than the phone itself. Phone network is O2
Phone Build: 17.1.1.A.0.402
Baseband: 8974-AAAAANPZQ-00005-08
Any comments?
I think cause its waterproof.
Agreed. Just switched from Z2 to G3 and G3 has much better signal..
On my Z2 at home constant dropped signal, no LTE
On my G3 hasnt dropped yet and LTE all the time.
Nexus 5 was a little better than Z2 but not as good as G3
JJD809 said:
Comparing to the Xperia T, my Z2 has a much weaker phone reception signal.
Click to expand...
Click to collapse
Weak on its own does not tell us too much.
Need to examine what the phone itself receives in dbM for signal strength and it will tell you just that if you look in
Settings-> about device->Status
what does signal strength show in each of the devices you mentioned ?
One Twelve said:
Weak on its own does not tell us too much.
Need to examine what the phone itself receives in dbM for signal strength and it will tell you just that if you look in
Settings-> about device->Status
what does signal strength show in each of the devices you mentioned ?
Click to expand...
Click to collapse
Mine is weak too.
It says -75dBm 19 asu
What does that mean?
One Twelve said:
Weak on its own does not tell us too much.
Need to examine what the phone itself receives in dbM for signal strength and it will tell you just that if you look in
Settings-> about device->Status
what does signal strength show in each of the devices you mentioned ?
Click to expand...
Click to collapse
Sitting at my desk at work getting signal info as requested. Got info from Z2 then shut it down, removed sim and placed it in the T, powered up and looked up the signal info. Both phones alternated between HSPA and GPRS
**Xperia Z2**
Signal Strength: -111 dBm 1 asu
Mobile network type: HSPA
Signal Strength: -107 dBm 2 asu
Mobile network type: GPRS
**Xperia T**
Signal Strength: -113 dBm 8 asu
Mobile network type: HSPA
Signal Strength: -95 dBm 9 asu
Mobile network type: GPRS
With a direct comparison between the two phones when moving about, the Z2 has the weaker signal reception....
JJD809 said:
Sitting at my desk at work getting signal info as requested. Got info from Z2 then shut it down, removed sim and placed it in the T, powered up and looked up the signal info. Both phones alternated between HSPA and GPRS
**Xperia Z2**
Signal Strength: -111 dBm 1 asu
Mobile network type: HSPA
Signal Strength: -107 dBm 2 asu
Mobile network type: GPRS
**Xperia T**
Signal Strength: -113 dBm 8 asu
Mobile network type: HSPA
Signal Strength: -95 dBm 9 asu
Mobile network type: GPRS
With a direct comparison between the two phones when moving about, the Z2 has the weaker signal reception....
Click to expand...
Click to collapse
According to what you have said, HSPA reception is stronger on the Z2. - On GPRS the T appears stronger.
diego9016 said:
Mine is weak too.
It says -75dBm 19 asu
What does that mean?
Click to expand...
Click to collapse
How many bars do you see ?
for reference, the smaller the number (when its negative numbers) the better the signal.
-60 is good, -112 is call drop territory. you're doing ok so why do you think its weak ?
That might be true and I cannot argue that, but the point remains that I have no phone reception/signal with the Z2 for most of the way when driving to and from work on the A33. With the Xperia T I have signal all the way.
Sent from my D6503 using XDA Free mobile app
defsix said:
According to what you have said, HSPA reception is stronger on the Z2. - On GPRS the T appears stronger.
Click to expand...
Click to collapse
yes but Z2 isn't all that much better than T. 3g is weak for both phones.
The larger difference is with 2G, less call drops on the T than Z2.
JJD809 said:
That might be true and I cannot argue that, but the point remains that I have no phone reception/signal with the Z2 for most of the way when driving to and from work on the A33. With the Xperia T I have signal all the way.
Click to expand...
Click to collapse
Do you use a hands free to take calls in the car.
i don't know how practical this suggestion is going to be, but if you can identify where the antenna is situated on both phones (user manual?) then you try to orient the z2 in a manner that does not block the antenna. Can make a difference when cell signal is weak. The way you do this is try and position the phone in different orientations and see if you get signal strength to increase (that means a lower figure in dbm)
eg, with a tab i use, i found orienting the tab in a different orientation means less obstruction and a better signal with wifi.
The phone connects to my car via Bluetooth connection to the MMI system. The phone fits in the cupholder, standing upright, in the console between the front seats.
The antennas of both phones are in the top half of the phones according to the manuals.
Sent from my D6503 using XDA Free mobile app
ok, so the question is why is the 2g over 12dbm less on the z2 than the T. However 3g is working fine.
both phones have antennas in the same area and are positioned identically in the car.
There may be a way to boost the 2g signal in some setting in a hidden service menu but it will drain battery faster.
Have you tried changing the preferred network mode to gsm. I find that in week 3g or 4g areas my Z2 spends too long hanging onto the week data signal before switch to the mode with the better signal strength for calls.
It seems to concentrate on data more than call signal to the point that I have had loads of missed calls due to no signal but if I switch off 4g or set the preferred mode to gsm I get full bars and no call issues but obviously i dont get data unless I change it again. Hopefully this is just a software issue.
Grumps69 said:
Have you tried changing the preferred network mode to gsm. I find that in week 3g or 4g areas my Z2 spends too long hanging onto the week data signal before switch to the mode with the better signal strength for calls.
It seems to concentrate on data more than call signal to the point that I have had loads of missed calls due to no signal but if I switch off 4g or set the preferred mode to gsm I get full bars and no call issues but obviously i dont get data unless I change it again. Hopefully this is just a software issue.
Click to expand...
Click to collapse
Bro did you sorted the isseue?
I have the same problem?

LTE Instability

I've had my opt for a couple weeks now and generally I really do like the phone. One issue that I'm having, that I haven't really read about is with my LTE signal. I have tmobile (usa) and admittedly I have relatively poor signal at home (-109dBm to -114dBm). I notice that every so often my LTE signal drops out completely and I get no data. At my work where I have excellent signal I don't have any issues. I've had several phones including the Oneplus One and I've never had problems with the signal dropping completely out like it does with the opt. Does anyone else have this issue? Are there any radios to try yet? or maybe just wait for a future update that might stabilize the radio? It's not a huge issue as I'm just using wifi at home most the time.
My receptiin seems bad. im in uk. Always 2 bars at house. Op2 always shows 0 99% of time in the indicator. however a signal app always says 28-35% signal. Wifi poor as well - massive drop of speed every couple of steps away from router
Are you using any apps to verify LTE signal and band?
I use LTE discovery.
useranonymous said:
Are you using any apps to verify LTE signal and band?
I use LTE discovery.
Click to expand...
Click to collapse
Does your device allow LTE Discovery to continuously update it's signal data? I have to kill the app for it to change what it displays.
Hastily spouted for your befuddlement

Weak cellular signal strength

What do you guys think about the cellular strength. Mine loses lte signal and switches to 3g where my other devices keep the lte signal (with reasonable speed). It's about 5-15 dbm more than the other phones. The 3g signal is good tho.
I also experienced this, wanna know is this normal or my phone is defective.
Haven't noticed a difference myself but I have only had the phone for a couple of weeks now. I also flashed to the UK firmware and live in a major metro area . Oddly enough my house is always a dead spot no matter what phone I use. The Tmobile 4G LTE Cellspot fixes that for me at home though so I can't really comment otherwise.

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