[Q] Signal problems, No mobile network! - Android Q&A, Help & Troubleshooting

Hi,
I have a problem with my phone. After installing Darky's ROM i received a signal problem. Now I hoped that CyanogenMOD would solve my problem. It didn't
So I am in the dark now, just wondering how I can fix my signal problem.
So this is what I see:
- Most of the time 1-2 stripes @ signal strength
- Every few seconds my signal strength goes from 0 tot 1-2 stripes (inside)
- When coming outside or I am inside small houses, I can receive a mobile network
- 95% of the time I cannot receive any connection to 3G
- 90% of the time it's saying: "Out of service, emergency Calls only"
- Strange thing is, Wireless doesn't seem to have any problems connecting to modems/routers
- My radio works perfectly
Can anyone help me with this issue? Is it solvable?
Information about my phone:
Model: SGS2
Modelnumber: GT-I9100
Android Version: 2.3.7
Smalbandversion: I9100XXKI3
Kernel-Version: 2.6.35.7-g1e46077 ([email protected] #1)
CPU-info: ARMv7 Processor rev 1 (v7l)
Mod-Version: CyanogenMOD-7.1.0-GalaxyS2
Build-Number: GWK74

Have you tried flashing a different radio? How old is your SIM card? Some radios work better/worse with some ROMs. As long as your SD card is relatively new, I'd start with flashing a different radio and then reassess.
Sent from my HTC Vision using XDA App

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[Q] VERY Intermittent Service (3G HSDPA etc)

Hi,
I have a SE Xperia X10i that I purchased the other week which I had unlocked via the SE servers in a phone shop as I wanted to explore the full potential of this phone. Now it is second hand so bear this in mind....
It was originally locked to the Three network in the UK, I was on O2.
The original phone had 2.1 Android on it.
After having it unlocked I rooted the phone and also installed xRecovery version 3 and then installed CM7-ZMOD CYANOGENMOD 7 V3 from 19/08/2011 which is Android 2.3 and also Baseband .71.. I love this ROM thanks to zdzihu for producing this.
I have a problem with my network service.. It drops in and out all the time.. sometimes and can have a full signal at one location and return to that location 2 hours later and get the dreaded (No Service).. Also if I go into searching networks.. it also says no network providers can be found.. even when I have a signal!!!!
I jave tried the SIM in another phone LG and it works fine at that location. I have also tried another SIM, 02 in the phone and I get the same network drop out behaviour.. I go into Bristol every day.. quite a klarge city in the UK and I am sure that the coverage is there.. well actually I know it's there..
Now I have I got a Baseband problem or a phone hardware problem?
Anyone that could help I would be grateful of assistance.
Many Thanks.
Anyone??
Okay as I didn't get a reply to the original post I shall try a different tact....
As I am getting very intermittent phone signals (GPRS/3G) etc and the WiFi and GPS is okay would it be possible to downgrade the BaseBand version as I assume that this is what drives the functionality of 2G and 3G signals?
I am currently on the following:
Model X10i
Android Version: 2.3.5
Baseband Version: 2.1.71
Kernel Version: 2.6.29-zdzihu-19082011
Mod Ver: ZMOD
Build Number: CM7-ZDZIHU-MOD.
I know the Basebands are location dependent, well some of them. I live in the South West of the UK if it's important
Many Thanks
Paul
You could try switching to another rom, who knows, or maybe switching to another sim card
Sent from my X10a using XDA App
Yeah I have tried 2 other sims from different operators and also about 5 different ROMS.. (Wolf, Ultima, TEAM etc) No change... I just wondered what the process was to try a different BB.. (lower version).. If not I may have a HW problem..
Thanks for the response.
pcsel said:
Yeah I have tried 2 other sims from different operators and also about 5 different ROMS.. (Wolf, Ultima, TEAM etc) No change... I just wondered what the process was to try a different BB.. (lower version).. If not I may have a HW problem..
Thanks for the response.
Click to expand...
Click to collapse
Try downgrading to 2.1 with baseband .67/.54 and see if that resolves your issue. If not, then it may indeed be a hardware fault.

[Q] No sound during calls

Hi all.
I have a problem with the Samsung Galaxy SII.
Model Number: GT-I9100
Android Version : 2.3.3
Baseband Version: I9100BUKE1
Kernel Version: 2.6.35.7-I9100BUKE5-CL227058
root DELL101#2
Build number : GINGERBREAD.BUKE5
Carrier: VIPNET (Croatia)
Sometimes when i answer a call i cannot hear anything and so does the person on the other side. If immediately after that i get another call or i am trying to make a call same thing happens only i cannot drop the call and phone loses signal for some time.
Could be a hardware fault, your mic is faulty OR your network providers problem. Try to make few more calls and see if it happens regularly or not.
definitely isn`t network (there were no problems with old phone). i make around 50 calls during the day and it happens 1-2 per day

[Q] LG L9 MS769 Radio signal problem

Experts:
Would really appreciate suggestions on fix a radio problem that I am facing with my LG L9 MS 769 phone running Android 4.1.2.
Issue: I stay at a place where the radio signal is quite poor and most often the signal indicator in the home screen indicates it does have some signal reception. Installed signal meters that display 87dBm., but if I try to make a call I get a message that says "Emergency calls only". This is observed only when the signal falls to zero and comes up again.
Phone information:
Android : 4.1.2
Baseband: L6260_MODEM_SIC_01.1305.00
Kernel: 3.0.31
Build: JZO54K
Soft.Ver: LGMS76910f
Observations: Additionally, in this situation even though the radio reports/has some signal, the CellID and the Operators are not registered.
Could you please provide your suggestions/any other forum link where a possible solution is provided.

[Q] LG L9 MS769 Radio signal problem

Experts:
Would really appreciate suggestions on fix a radio problem that I am facing with my LG L9 MS 769 phone running Android 4.1.2.
Issue: I stay at a place where the radio signal is quite poor and most often the signal indicator in the home screen indicates it does have some signal reception. Installed signal meters that display 87dBm., but if I try to make a call I get a message that says "Emergency calls only". This is observed only when the signal falls to zero and comes up again.
Phone information:
Android : 4.1.2
Baseband: L6260_MODEM_SIC_01.1305.00
Kernel: 3.0.31
Build: JZO54K
Soft.Ver: LGMS76910f
Observations: Additionally, in this situation even though the radio reports/has some signal, the CellID and the Operators are not registered.
Could you please provide your suggestions/any other forum link where a possible solution is provided

LG G5 two 4G symbols instead of one.

Yesterday (Friday 2nd December 2016) my LG G5 updated from Android 6.0.1 to Android 7.0, at first I didn't notice anything because my mobile data speed is 50mbps where as my wifi is less than 10mbps so I downloaded Android N update using 4G. However when I went to turn off the mobile data and turn on wifi I noticed I had two 4G symbols showing right next to each other, one says 4G+ with an up and down arrow and then next to it I have 4G with the ascending bars. Now when I turn wifi on and mobile data off only the 4G+ symbol disappears but the 4G with the 4 ascending bars stays around. It's only a very minor issue but it's really annoying seeing two of the same symbols especially when I'm very minimalistic when it comes to how my phone looks. Some info is listed below in case you need it.
Build Number: NRD90U
Software Version: V20a-TWN-XX
Android Version: 7.0
Baseband Version: 3.18.31
Model Number: LG-H860
Same here, im not that bother about it considering how well this update turned out, i got the same model as u by the way
I don't have nogut yet. But maybe it's barried in the settings?
Sent from my LGE LG-H830 using XDA Labs
My H850 on V20-EUR-XX does not seem to have that problem and I didn't experience any other negative effects from the upgrade, either.
TC: I suspect you have a Dual SIM model of the phone, presumably the Taiwanese variant judging by your device info.
It's possible that the phone is set to display dual signals even when there is only one card inserted. You might want to try playing around with the Dual SIM settings and see what happens if you insert a second SIM or else disable indicators for said second SIM.

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