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[Q] NxS jumping between 2G/3g?

Anyone else having a problem with the NxS jumping between 2G/3G network all the time?
I tried 2G-only and it seems the it does interrupt connection less often, but it still does. I'll exchange the sim card tomorrow to rule out the last option (I can think of) I got before returning the NxS and asking for a replacement.
(i9023, stock rom/kernel/radio, tried 3 stock roms with diff radios (KA3, KB3, KD1))
Maybe anyone got an idea or a hint.

Sounds like ur in a weak 3g area so it keeps goin back to 2g
Sent from my Nexus S using XDA App

docster121 said:
Sounds like ur in a weak 3g area so it keeps goin back to 2g
Sent from my Nexus S using XDA App
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Granted I'm not in the best 3G area, but I usually get 3 (of 5) bars in 3G and then it just pops back to 2G.
Might be network pumping (or w/e it's exactly called), gonna exchange the sim anyway to track down the problem further.

Are u on orange in the uk
Sent from my Nexus S using XDA App

I have this problem aswell. Thing is 2 3g bars are way faster than 4 g bars. I cant change it to use only cdma in the service menu. Anyone know why.
Sent from my Nexus S using Tapatalk

So does change of simcard help?

I got it fixed for me. I tried n3 and n5 sim cards, no changes. Problems were caused by faulty antennas, after being fixed by the carrier problem was reduced to a minimum. Now to get rid of the so called network breathing, which is a problem of the used communication method itself aka can't be fixed. University ftl!! Simply too many smartphones
Sent from my Nexus S using XDA App

3G/UTMS not working - Could it be hardware?

Hi,
I have a Samsung Nexus S on Orange UK. I have noticed recently that I am not connecting on 3G and only GPRS.
I thought it may have been down to the ROM so I restored the stock firmware but that still doesn't work. Going to the testing menu (*#*#3646#*#*) confirms its on GPRS and if I set it to WCDMA Only, it attempts to connect and then says disconnected.
I have checked the SIM in a USB Dongle and it works fine so I don't think its reception or sim card related.
Is there any way to debug this on the phone? Could it be hardware (does GPRS use the same hardware or are they seperate radio chips).
Tom

Did you try to use a different radio? Sometime it is radio problem.
Accidentally sent from my Google Nexus S using XDA Premium

I bought mine on contract through cpw in December on a vodafone contract but not branded and it's unlocked and have no issues regarding this. All gsm phones are compatible with the UK networks (I think) so probably not a hardware problem. U should try another network Sim in your phone and see how that behaves.
If u don't get 3g then contact orange maybe it's their fault. Or could be you're not in a 3g area.
Sent from my Nexus S

Thanks for the replies.
The phone used to work on 3G - The SIM has not changed and putting the SIM in a Data dongle confirms its working so not a network issue or reception.
I have tried various radios just in case it was that, but again still no 3G.
I have tried everything I can think of which is why I was thinking it was possibly a hardware fault with the phone?
Mine was through CPW unlocked, which radio are you using leerobson99?

Xxkf1 just updated to 2.3.6 today, stock unrooted.
Sent from my Nexus S

To fbnts
Try a hard reset this may work for you.
Sent from my Nexus S using XDA App

sprint has been having a lot of issues with there 3g lately. mine has been intermitten the past few days and finally came back today
Edit: just realized you aren't on sprint.
still could be your service provider though rather than the actual phone.

Repeatedly Losing Data Connectivity

My Nexus 5 frequently loses mobile data connectivity. Its been happening since I purchased it, but the frequency with which it happens has increased since I flashed the M1 snapshot of CM. I've since flashed the second snapshot from early January, but it has not made any difference.
This is the same sim card that ive used with my nexus 4 and my htc one without any problems, and I've made no changes in my wireless carrier.
Does anyone have any thoughts as to why this happens?

Try a different,maybe older, radio. If that doesn't help go back to stock and see if it persists.
sent from my Hammerhead Nexus

Flash the Nexus factory image. If that fixes it, its a problem on CM's side
Sent from my Nexus 5 using XDA Premium 4 mobile app

hi.
i was this problem too, not exaactly the same, but somehow similar. I have 3g connection, the signal bar shows H and somtimes 3G, but the speed is freaking slow, worse than 2g. Initially I thought its something wrong with my phone, been changing ROMS to see if it is the issue, but no. Then I flash the latest baseband / radio, and still doesnt help.
Be reminded I am on 4G plan, but never had any 4g network ( it is not because i'm not in an area with no 4g network )
I was very frustrated and emo at the same time, thinking of RMA the phone, thought it is the radio chip problem.
but then... I called my telco, asking why I'm experiencing slow connection and bla bla, and I don't have 4g network. They keep saying my network is working perfectly, and running normally, I requested them to reset my network connection. They agreed and asked me to turn off the phone for a few minutes then they reset the network for me.
After that, everything is running perfectly.
This was 2 days ago. And guess what, I don't have any 4g connections now again. Stupid telco, I'm going to call them later when i'm free. grrr.
but please make a call to your telco and ask them.
Hope that helps

Nexus 5 Stuck un EDGE

So a week or so ago my Nexus 5 stopped getting reception for 3g networks,leaving me with EDGE or just no signal every time, everywhere, I've moved a lot around the city and it didn't change anything, i tried my sim card in my old Galaxy s4 and it worked perfectly with 3G Hspa networks so it isnt my sim card, I flashed different radios from the XDA modems thread, nothing, I rebooted, changed the network, changed the APN, dialed *#*#4636#*#* and switched the mode there, god I even opened the back of the phone to check the MIMO antennas and they were fine, nothing seems to solve the issue, so I'm here for help, please help, what else can I do to fix this?
Sent from my Nexus 5 using Tapatalk

LRC1710 said:
So a week or so ago my Nexus 5 stopped getting reception for 3g networks,leaving me with EDGE or just no signal every time, everywhere, I've moved a lot around the city and it didn't change anything, i tried my sim card in my old Galaxy s4 and it worked perfectly with 3G Hspa networks so it isnt my sim card, I flashed different radios from the XDA modems thread, nothing, I rebooted, changed the network, changed the APN, dialed *#*#4636#*#* and switched the mode there, god I even opened the back of the phone to check the MIMO antennas and they were fine, nothing seems to solve the issue, so I'm here for help, please help, what else can I do to fix this?
Sent from my Nexus 5 using Tapatalk
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what is your current rom & radio?

shilton.charles said:
what is your current rom & radio?
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Click to collapse
Until yesterday everything was stock, right now I'm running Carbon ROM and one of the radios from 4.4 don't remember which one, neither of those radios changed anything
Sent from my Nexus 5 using Tapatalk

LRC1710 said:
Until yesterday everything was stock, right now I'm running Carbon ROM and one of the radios from 4.4 don't remember which one, neither of those radios changed anything
Sent from my Nexus 5 using Tapatalk
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Click to collapse
sad to say its quite possible u may have a hardware issue...i will continue research and report if i find anything that may assist you

What carrier and have you called your carrier to use your IMEI with the Sim you have in it.i only had HSPA when i cut down my Sim from my Samsung Galaxy S2 to fit,called my carrier At&t and switched IMEI .i have LTE at home,work,etc
Sent from my Nexus 5 using Tapatalk

Terrible network connectivity since official Lollipop update.

Since fishing the factory images last week I have been experiencing a virtually nonexistent mobile network connection with my N5 on T-Mobile, basically 90% without connection where I used to get perfect reception. I've tried flashing the old radio, re-flashing Lollipop radio, factory reset, etc. Nothing helps. Is it just me or is anyone else experiencing this?
Sent from my Nexus 5 using XDA Free mobile app

Did you do a full wipe? Reflash factory image?

I've done everything short of completely rehashing the factory images. Just factory reset the device an hour ago.
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I'm on PTEL (part of Tmobile network). My cell data went to zero after I upgraded. Haven't left the house yet to see if it kicks in elsewhere, but looks like it's just not receiving it (since I use to get at least 2 bars).

Well, turns out it was a loose connection related to a recent screen replacement. Problem is solved, Lollipop not the issue. Kill the thread, dad.
Sent from my Nexus 5 using XDA Free mobile app

Eh i was just gonna say that i have same problem it looks like mostly t mobile or t mobile engaged users are affected!
Im from europe, and i cant get LTE any more im loosing siglan periodically, only 3g preferred works. Really anoying.. Flashed factory image stock,non rooted, unlocked bootloader only if someone find workaround or have advice..yes please
Sent from my Nexus 5