Nexus 5 5.1 Radio - Nexus 5 Q&A, Help & Troubleshooting

Greetings,
First off as general context, the greatest complaint that I have had with the Nexus 5 has always been its radio and I've been a user since Nexus 5 launch. I am a Canadian user on the Rogers network, and I have found many areas that other phones (any of the iPhones, Samsung Note 2, Samsung S4, HTC One m8) receive signal on the Rogers network (at least 2 bars) while I have zero reception. Most of these areas are basement level areas or complete concrete buildings. Has anyone else encountered this problem? This is especially annoying as I tend to be in basement areas often.
Second off, I am a rooted user on Carbon ROM for 4.4.4 KitKat but running 4.4.2 radio. I've found that the 4.4.4 radio was highly unstable for me, losing signal every few minutes or so while being in areas where I receive full bars and remaining stationary. Thus I reverted to 4.4.2 radio only and it fixed my problem. Now that 5.1 build is out, I would like to update only my radio and bootloader for 5.1 as I am not ready to enter Android 5.x with the memory leak problems and other features. All i would like to try out is mainly the radio to see if it fixes my first issue. Would flashing only the radio and bootloader of 5.1 be okay? I'm not sure if there is some sort of problem with flashing radios and bootloaders of a whole different build (5.x onto a 4.x). Thanks.

xtremeryo said:
Greetings,
First off as general context, the greatest complaint that I have had with the Nexus 5 has always been its radio and I've been a user since Nexus 5 launch. I am a Canadian user on the Rogers network, and I have found many areas that other phones (any of the iPhones, Samsung Note 2, Samsung S4, HTC One m8) receive signal on the Rogers network (at least 2 bars) while I have zero reception. Most of these areas are basement level areas or complete concrete buildings. Has anyone else encountered this problem? This is especially annoying as I tend to be in basement areas often.
Second off, I am a rooted user on Carbon ROM for 4.4.4 KitKat but running 4.4.2 radio. I've found that the 4.4.4 radio was highly unstable for me, losing signal every few minutes or so while being in areas where I receive full bars and remaining stationary. Thus I reverted to 4.4.2 radio only and it fixed my problem. Now that 5.1 build is out, I would like to update only my radio and bootloader for 5.1 as I am not ready to enter Android 5.x with the memory leak problems and other features. All i would like to try out is mainly the radio to see if it fixes my first issue. Would flashing only the radio and bootloader of 5.1 be okay? I'm not sure if there is some sort of problem with flashing radios and bootloaders of a whole different build (5.x onto a 4.x). Thanks.
Click to expand...
Click to collapse
The bootloader and radio are separate from everything else on the Nexus 5, you can use any version with any version of Android.

Related

Reverting the Radio because of signal issues?

Since getting my N5, it's been great in EVERY respect. Since 4.4.1 and 4.4.2 update (both Sideloaded rather than OTA) I have been suffering the same issue(s) as others in respect to signal and I have read that some people have flashed back the original radio from 4.4 to resolve this, whilst still on 4.4.2 OS.
The issue i am having, in spots where I leave my phone it usually obtains signal within 5 seconds and rises to 3-4 bars which is great. Since the update, if i put my phone in that exact same spot, it takes 45-60 secs to get the signal, and then it gets 3-4 bars. The signal also drops off more when I pick the phone up, its almost like the radio power has been nerfed.
Anyway, moving on ... I am currently 4.4.2 stock, un-rooted. I realise in order to flash the original radio, I do not need to be rooted, but need an unlocked bootloader.
I plan on following step 1 from this guide http://forum.xda-developers.com/showthread.php?t=2507905 in order to unlock the bootloader, and then flash the Radio (I will find the correct instructions for this)
Has anyone else done this yet or can comment on my plan? I have no intention of been fully rooted as I do like the use the latest Barclays Mobile Banking App which wont run on rooted phones but I need my signal issue sorting!
Appreciate your help

Signal drops since 4.2.2

Hi everyone.
I owned a Nexus 5 one month ago, but unfortunately, it does not work as expected. On 4.4.0, I had multiple issues concerning network already (unable to switch to 3G networks only, very variable HSPA signal reception (from 4/4 bars to Edge exactly at the same place), ...). This issues were supposed to be fixed with 4.4.2 and most of them are, excepting HSPA signal which is still very weird. However 4.2.2 brings my phone another issue that I didn't noticed on 4.4.0 which is a very annoying and repetitive complete signal blackout (no reception at all (Edge/HSPA), even for emergency calls I guess). Signal drop can happen twice in an hour, twice in 10 minutes or may not happen at all 3-4-5 hours long. It's completely unpredictable. After a while, Edge signal (not HSPA !!) gets back by itself. If I wait 10-20 more minutes, HSPA comes back again, until it drops again.
Moreover, at phone boot, just after typing my PIN Code, it usually takes 2 or 3 minutes to catch a signal. Very slow isn't it ?
It does not seem to be a network issue, since my Samsung Galaxy S III doesn't encounter this using the same SIM card.
I read on Google forums and probably some XDA threads that I was not the only one to face this kind of network issues, even on 4.4.2, but issue description was each time a bit different from mine, thus I tought that it may be useful to post a new thread to describe precisely what was my problem.
Edit : My Nexus 5 is unlocked and rooted, but issue is present on untouched 4.2.2 also.
Edit 2 : http://forum.xda-developers.com/showthread.php?t=2525583 is probably my issue.
Do no hesitate to answer if you're thinking that you have the same issue (or kind of) or if you think that you know something that may help.
Thank you .
KennyG9
You can flash the radio from version 4.4 that helps a lot, I'm at work just search this forum the directions are here, it's easy.
Sent from my Nexus 7 using Tapatalk 4
^^ He appears to be talking about the link below. You can flash different modems that may work. Some people say different modems helped but I've had no such luck. I've flashed every modem available and still don't have data almost everywhere I go. I have data at home but that doesn't really matter since I don't need my phone at home.
http://forum.xda-developers.com/showthread.php?t=2514095
Did you try flashing your carrier's specific radio?
Team Nexus 5 sucks
dicecuber said:
Did you try flashing your carrier's specific radio?
Team Nexus 5 sucks
Click to expand...
Click to collapse
Were would one find the carrier specific radio? I'm on T-Mobile but have only found the thread with modems. Nothing carrier specific.
Thanks for your answers. Unfortunately, flashing different modems does not seem to help .
i've read, the .15 is good with t-mobile.
i'm testing it today too. my problem is not only a signal drop, i have only edge too and my modem won't switch back to umts or hspa(+).
i'm in germany with t-mobile (congstar).

Why is this and are they aware of it?

I live .7 miles from a 4G LTE tower and get full coverage on both my galaxy nexus devices and moto x. These are the screen shot of my new Nexus 5 the normal signal is on 4.4 and the horid is on 4.4.2. I have tried flashing three times all with same results. Or can I just flash the radio
or is this a OS issue.
venom_762 said:
I live .7 miles from a 4G LTE tower and get full coverage on both my galaxy nexus devices and moto x. These are the screen shot of my new Nexus 5 the normal signal is on 4.4 and the horid is on 4.4.2. I have tried flashing three times all with same results. Or can I just flash the radio
or is this a OS issue.
Click to expand...
Click to collapse
Signals fluctuate often. Hard to pinpoint an issue just from a little bit of testing, though does seem odd. Can't say I'm shocked when I hear Sprint service not working well for some reason or another. You can try a different modem here: http://forum.xda-developers.com/showthread.php?t=2514095
Its not a service issue its a device issue, I have tried two Nexus 5's and both have lousy signal and regain it when flashing back to 4.4.
It's was talked about quite a bit after 4.4.2 was launched that people were facing signal issues with the radio packed with 4.4.2. Some people flashed back to the 4.4 radio and reported improvement. Personally, I haven't seen a difference.
If you want you can flash the 4.4 radio and see if it improves your signal.
I just rooted and flashed the KRT16M and it made a huge improvment.
You can just flash the modem from 4.4 to use with 4.4.2. All the benefits of the updated firmware with the radio performance of the old modem.
I went to the .15 radio tonight and it seemed to help some. Plus remember the radio is a triband radio unlike your other two phones.
Sent from my Nexus 5 using xda app-developers app

Nexus 5 - Android 5.1 LMY47D Radio Issues

Hello all,
Sparse poster, long time lurker. I just upgraded my Nexus 5 (purchased from Google, on T-mobile) from 5.0.1 to 5.1 using the OTA link available from AndroidCentral and though no other problems have been found, I am having some trouble with the radio now. When I'm on a call now, the data connection drops from LTE to GPRS, showing the 'G' next to the signal strength icon. Before upgrading from 5.0.1, this would drop to HSPA ('H') at worst. I came to expect that the 5.1 update would enable VoLTE since I thought the N5 was capable of this and the upgrade enabled VoLTE on the N6 for a buddy of mine. Either way, I think GPRS is a pretty bad when I need a data connection while on a call.
I tried to reflash the bootloader, radio, boot and system img's manually and nothing changed. Any ideas? Anyone else having this issue?
Thanks!
hi, I encountered same issues with tmobile LTE after I sideload to android 5.1.
cocopete5243 said:
Hello all,
Sparse poster, long time lurker. I just upgraded my Nexus 5 (purchased from Google, on T-mobile) from 5.0.1 to 5.1 using the OTA link available from AndroidCentral and though no other problems have been found, I am having some trouble with the radio now. When I'm on a call now, the data connection drops from LTE to GPRS, showing the 'G' next to the signal strength icon. Before upgrading from 5.0.1, this would drop to HSPA ('H') at worst. I came to expect that the 5.1 update would enable VoLTE since I thought the N5 was capable of this and the upgrade enabled VoLTE on the N6 for a buddy of mine. Either way, I think GPRS is a pretty bad when I need a data connection while on a call.
I tried to reflash the bootloader, radio, boot and system img's manually and nothing changed. Any ideas? Anyone else having this issue?
Thanks!
Click to expand...
Click to collapse
Tried downgrading to previous radio version?
I use kitkat radios on lollipop
I'm not having any problems with LTE. I'm on T-Mobile.
Sent from my Nexus 5 using XDA Free mobile app
My stock 5.1 radio was very broken. Phone process froze, no deepsleep, losing connection and sim, people could not call me. Very bad.
Using 5.01 radio now, its much better.
My provider is Vodafone NL.

Questions on issues after flash 6603

Hello,
I am new to the Android world coming from the iphones I had jailbroken. I searched for and found answers to a bunch of issues I had with this last flash but am not finding anything specific to my question below so I hoped someone might shed some light or point me in the right direction. I have a Xperia z3 6603 on kitkat 23.0.A.2.93. I downgraded the firmware from what it came with to get root which it now has, BL still locked. Over time it started acting up so I re flashed last week with a new downloaded ROM I used D6603_23.0.A.2.93_Generic_20GLOBAL.ftf.
The one last major issue (I hope) is the weak signal. I am on AT&T and since the flash I get max one or two bars LTE (full bars before) in the big metropolitan areas...briefly it goes to 4 bars. I don't get the signal strength on H+ I got before either so checked my APN configuration based on a post I found dated 2015 and it matches. I thought since it was a global rom I shouldn't have issues with the modem. Is there something I need to install or configure to get my signal strength back to where it was pre flash?
Thanks again for any help....definite android newbie trying to learn as much as I can so don't have to bug anyone.
Every firmware has its own radio ROM which is responsible for the signal/cell radio modem settings.
You might want to flash the ROM specific to your country, not the global/generic one.
If you want to play and tinker a bit, go to phone and dial *#*#7378423#*#*(*#*#SERVICE#*#*) to play around with Network Mode or the Antenna RX diversity tests.
Or you could try *#*#4636#*#* (*#*#INFO#*#*) to play around with Phone information.
Enjoy and good luck

Categories

Resources