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[Q] G2X radio broken

I have CM7 installed on my G2X and the radio turns off on its own -- it reports no signal. In order to get the radio working again, the only thing I can do is reboot my phone.
Also, to even get the radio working, I had to install "APNs Backup" from the market.
I am running android 2.3.4 on CM 7.1.0-RC1-G2x
My baseband version is:
M6600A-SCAUNTZ-2.0.9720T 1 [MAR 07 2011 16:00:00] MP:TRULGE_08.09.02R_MDM
Has anyone else had this problem? Can anyone confirm whether I have the p990 baseband instead of the p999 baseband by accident? (as reported here http://forum.xda-developers.com/showthread.php?t=1037098)
Lastly, can anyone help me flash the BIN_LGP999AT-01-V21e-310-260-JUL-15-2011+0 baseband from here:
http://forum.xda-developers.com/showthread.php?t=1037120
Specifically, I am not sure which of the two BIN files to flash, and what the correct nvflash command is (which partition does it go to?)... I can't use smartflash or any windows tools...
I have done a lot of searching and I couldn't find anything to help me out, but a few topics that are relevant are here:
http://android.modaco.com/topic/343443-lg-g2x-p-999dw-dead-flash-original-firmware-what-do-i-do/
http://forum.xda-developers.com/showthread.php?p=14159600#post14159600.
http://forum.xda-developers.com/archive/index.php/t-1248644.html
http://forum.xda-developers.com/archive/index.php/t-1247595.html
http://forum.xda-developers.com/showthread.php?t=1247595
Thanks,
Ben

What radio are you talking about?
APN is a known issue for CM7 based roms.
The baseband you have right now is a g2x baseband, though, it was the one when it came out with froyo.
Why you have to partition or repair partition on your phone if it has mo issues with partition?
Sent from my Calculator with Android.

CM7 or any 2.3.4/2.3.5 ROM for the G2x is known to have that issue. They are working on it currently. The APN's Backup App works for me tthough.
Sent from my LG-P999 using xda premium

What radio are you talking about?
Click to expand...
Click to collapse
Just the cellphone radio.
Why you have to partition or repair partition on your phone if it has mo issues with partition?
Click to expand...
Click to collapse
I am just wondering how to flash that ROM I linked to and whether it would help my issues or not.
The APN's Backup App works for me tthough.
Click to expand...
Click to collapse
FatalityBoyZahy -- do you do anything special with it? It allows me to actually get reception (I can't without it) but my radio will still drop and force a restart. Do you have any special settings on it? When the radio drops the tool no longer has the list of APNs and I have to "restore" to get them back.

I was using the experimental (RC1) ROM so I just flashed the 155 nightly. So far a few of my network issues are solved. I'll update if it's completely solved tomorrow.
Sent from my LG-P999 using XDA App

lisbakke said:
Just the cellphone radio.
I am just wondering how to flash that ROM I linked to and whether it would help my issues or not.
FatalityBoyZahy -- do you do anything special with it? It allows me to actually get reception (I can't without it) but my radio will still drop and force a restart. Do you have any special settings on it? When the radio drops the tool no longer has the list of APNs and I have to "restore" to get them back.
Click to expand...
Click to collapse
I could send you a copy of my APN's if you'd like. You'd just need to put them on the SD Card, and restore them through the app. Shoot me a PM.

I have the same issue. My phone randomly looses connection even in good signal areas. Only way to get back on the network is to toggle flight mode or reboot.

This is a known issue on all Android phones that has persisted throughout all Android versions. Google has worked on the problem and it has gotten better, but they haven't been able to exterminate the bug yet. This phenomena occurs when the 3G signal is weak and the phone switches back and forth from 3G and Edge frequently. Eventually the phone just shuts down the radio due to it switching too much. This is the Android OS commanding the radio to shut off. It is not a hardware issue at all. I have had this issue on every Android phone I have owned. Ironically, the only phone I haven't seen the issue with yet is my G2X running stock GB. The best way to alleviate the issue is to install "Network" from the Market and set the phone to 3G only. If your custom rom has a 3G only option just set it there. There is also an app called "3G only" that accomplishes the same thing. Since you are locking in 3G the phone won't switch frequently and the radio will stay on. You can do the same thing by setting it to 2G only, but who would want to do that.
Network: https://market.android.com/details?id=de.mangelow.network&feature=search_result
3G Only: https://market.android.com/details?id=com.mobnetic.only3G&feature=search_result

I think my issue is more severe than it is for you guys. Fatality - when my radio goes out, nothing but a reboot turns it back on. Not airplane mode, not toggling data on off, not changing apns. In fact, when the radio turns off any menu pertaining to the radio freezes and asks if I'd like to force quit it.
Also, I doubt that this is the long term Android bug. I've owned probably 10 or 15 android devices and I have seldom had to restart the phone because of this. For my g2x, I have to reboot literally 15 times a day.
I had two more leads I am trying.
One was that I have a 5 year old T-Mobile SIM in my g2x and I read somewhere that an old SIM could be a problem. No such luck, the radio has already turned off with a brand new SIM.
My second lead is my baseband. I have a March 7 baseband, but the two basebands online for g2x are March 17 and a later one. So, perhaps I do have the wrong baseband?
Thanks,
Ben
Sent from my LG-P999 using XDA App

Oops I forgot to respond about jboxers suggestion to limit to 3g. It didn't work, either.
The network app didn't seem to have a 3g only mode, the 3g only app didn't limit my phone to 3g (it was still 4g) it only turned data on/off and also the radio still turned off, so I tried using the phone's 2g only mode and that immediately killed the radio.
Sent from my LG-P999 using XDA App

lisbakke said:
Oops I forgot to respond about jboxers suggestion to limit to 3g. It didn't work, either.
The network app didn't seem to have a 3g only mode, the 3g only app didn't limit my phone to 3g (it was still 4g) it only turned data on/off and also the radio still turned off, so I tried using the phone's 2g only mode and that immediately killed the radio.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
3G and 4G on HSPA are inseperable. '3G only' will give you '4G' also.

lisbakke said:
Oops I forgot to respond about jboxers suggestion to limit to 3g. It didn't work, either.
The network app didn't seem to have a 3g only mode, the 3g only app didn't limit my phone to 3g (it was still 4g) it only turned data on/off and also the radio still turned off, so I tried using the phone's 2g only mode and that immediately killed the radio.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
As another poster already said on TMO 3G and 4G are the same thing. In fact, TMO doesn't have real 4G. HSDPA+ is fast but it is not true 4G. In some countries it is referred to as 3.5G and here in Thailand they are calling it 3.9G.
The network app does work. You scroll down and selected "WCDMA" only. That is 3G/4G. That will lock the radio into 3G and 4G only. The 3G only app will lock it into 3G and 4G only. There is no way to say 4G only, because it is not real 4G. If TMO had LTE that would be a different story.

Ah, that's good to know that 3g=4g on t-mobile. How come sometimes my phone says 4g and sometimes 3g?
Anyway, I wish that was the issue
Does anyone else have any ideas of what it might be?
What baseband version do you guys have on your G2x? Does anyone else have the same baseband version as I do?

lisbakke said:
Ah, that's good to know that 3g=4g on t-mobile. How come sometimes my phone says 4g and sometimes 3g?
Anyway, I wish that was the issue
Does anyone else have any ideas of what it might be?
What baseband version do you guys have on your G2x? Does anyone else have the same baseband version as I do?
Click to expand...
Click to collapse
HSDPA=3G, HSDPA+=TMO Pseudo 4G. HSDPA+ is an enchanced version of HSDPA with faster speeds but not true 4G. Most devices display an "H" but TMO had it programmed to "4G" to pretend they offer 4G service. Both are versions of WCDMA, which is what GSM 3G is.

I found this thread that has another kernel that supposedly fixes the APN. I haven't had my kernel drop yet, but it's only been 10 minutes Here's a link to the kernel:
http://forum.xda-developers.com/showthread.php?t=1229932
For install instructions, read the instructions in the linked code.google.com issue tracker:
http://code.google.com/p/cyanogenmo...on Model Network Owner Summary Stars Priority
I used:
adb push boot.img /sdcard/ && adb shell dd if=/sdcard/boot.img of=/dev/block/mmcblk0p5 && adb reboot
and everything worked fine (don't forget to clear dalvik cache on reboot).
To run the script he linked to, download ScriptManager from the app store.

It fixed my radio! Though it did kill wifi.
Sent from my LG-P999 using XDA App

HTC Sensation dropping calls

My phone dropping calls and say missed call when I try to answer. One more thing when deny call somethimes continue ring two more times and then stop. Whats the problem ?

Imperatorpg said:
My phone dropping calls and say missed call when I try to answer. One more thing when deny call somethimes continue ring two more times and then stop. Whats the problem ?
Click to expand...
Click to collapse
More info? Like ROM, kernel, stock, mods??
Sent from my HTC Sensation XE with Beats Audio Z715e using xda premium

I tried many roms,kernels,mods and fw. I didnt have this problem before I rooted my phone. I use ARHD 6.2.1. now. problem still exist.

It is cause you are using the wifi calling it has bugs and drops calls it also all ways runs in the background even when wifi is off I suggest unistalling it via titanium backup or at least turning it off when making calls
Sent from my HTC sensation 4g using Tapatalk

dislplin01 said:
It is cause you are using the wifi calling it has bugs and drops calls it also all ways runs in the background even when wifi is off I suggest unistalling it via titanium backup or at least turning it off when making calls
Sent from my HTC sensation 4g using Tapatalk
Click to expand...
Click to collapse
I think that didnt install WiFi calling, it happens when receiving call and when try to answer it show like I answered but cant hear anything and after 3-4 seconds sat missed call. One more thing,when I want to deny call, phone keep ring 2 more thimes and than stop. It happen ocasionally. This isnt over wifi,but normal GSM calls.

Imperatorpg said:
I think that didnt install WiFi calling, it happens when receiving call and when try to answer it show like I answered but cant hear anything and after 3-4 seconds sat missed call. One more thing,when I want to deny call, phone keep ring 2 more thimes and than stop. It happen ocasionally. This isnt over wifi,but normal GSM calls.
Click to expand...
Click to collapse
I have only had those problems with wifi calling and it is included on ARHD and is on by default you will see a lil blue icon in status bar if it is one , otherwise you might have a faulty device or bad reception where you live cause I have not had it or seen this issue about the phone
Sent from my HTC sensation 4g using Tapatalk

It couls also be the sim, try yours in a differnt phone and see if the issue stays with the sim or not

I read that some users have this issue too, but couldt find solution

I have the same problem with ARHD 6.2.1
My workaround is to disable 3G mode. It seems that the phone prefers weak 3g cells over 2g cells with good signal strength.
Install one of the GSM Monitors from market. If your signal strentgh ist -100dBm or more, phone calls get unstable. After switching to 2g mode (Settings - Mobile Network - Network Mode - GSM only) I have -75 - -90dBm now and more available cells than before.
Phone Calls are stable now.
Before that I tried to downgrade to another radio but no luck. I never had this problem with ARHD 3.6.8 - 3.6.13 that I used before.

-dasch- said:
I have the same problem with ARHD 6.2.1
My workaround is to disable 3G mode. It seems that the phone prefers weak 3g cells over 2g cells with good signal strength.
Install one of the GSM Monitors from market. If your signal strentgh ist -100dBm or more, phone calls get unstable. After switching to 2g mode (Settings - Mobile Network - Network Mode - GSM only) I have -75 - -90dBm now and more available cells than before.
Phone Calls are stable now.
Before that I tried to downgrade to another radio but no luck. I never had this problem with ARHD 3.6.8 - 3.6.13 that I used before.
Click to expand...
Click to collapse
I already use only gsm mode and that hapens every day.

returned to stock rom and it is same situation
Any proposition, help ?

??????????????????????

Anybody???

Are you using wifi calling cause I only get dropped calls if I use eifi calling I unistal it right away every time plus it eats battery even when not on
EDIT lol I already comment on this
Sent from my HTC sensation 4g using Tapatalk

No, it happens with gsm calls, I turned off 3G and still happens.

You might have a faulty phone or case the antenna in the cover may not be connecting right if you have T-Mobile you send it in for warranty they are pretty good about that up to three times in the first year and its free
Sent from my Xoom using Tapatalk

dislplin01 said:
You might have a faulty phone or case the antenna in the cover may not be connecting right if you have T-Mobile you send it in for warranty they are pretty good about that up to three times in the first year and its free
Sent from my Xoom using Tapatalk
Click to expand...
Click to collapse
Thanks, I did full new stock rom and all to factory and still problem

HTC sensation dropped calls
hello,
i am new in ths forum. i got my HTC sensation Z710e a few days ago. it was the best until i upgraded it to ICS 4.0.3.
now i have the same problem same as Imperatorpg.
in my area, only 2G is available(no WCDMA,3G what so ever.....)
i havenot unrooted my phone yet.
i havenot used any customised ROM yet(and dont want to...unless there is any specific solution....)
anyone got any solution ????
Device: HTC Sensation 4g with Ice Cream Sandwich 4.0.3, S-on
HTC sense: 3.6
Kernel: 3.0.16-gda3fdfc [email protected]#1
Baswband version: 11.693504.00U_11.22.3504.07_M
Build number:3.32.401.5 CL309896 release keys
CID: HTC__001
bootloader:1.27.0000

i am having the same exact problem as Imperatorpg. send it to HTC for repair . received with the same issue i am going to change my SIM card and see if it makes any difference, i cant think of any fix
anyone know this fix ???????????

Did you guys purchase you handset through a mobile carrier in your region, or purchase it online from another country?
If it's the latter, you may need to look into flashing a more appropriate radio for you region.
Sent from my CM9 Stable Sensation using XDA Premium

T-mobile HTC sensation signal problems

I need help, I'm already desperate...
Got a T-mobile HTC sensation, it was already unlocked for other carriers but no S-off or unlocked bootloader.
I got an S-off, unlocked the bootloader, changed CID, flashed Android Revolution HD 6.7.2, but I have HORRIBLE signal reception. So I found that update file in the header which said "- HTC Sensation 4G (U.S. T-Mobile PG5810000 | T-MOB010) users can flash this for better signal and data speeds!" I installed it... NO IMPROVEMENT, my last hope is flash a different radio. Anybody knows what's the problem and how to fix it?
configs right now
different carrier sim (not t-mobile)
S-off, unlocked loader
HBOOT: 1.27.11111
Radio: Radio_11.76A.3504.00P_11.24A.3504.31_M
cid changed to 1111111
firmware: 3.33
ROM right now: is the XE version with beats (tried 1.2.2 too, no change)
Kernel: faux
EDIT: just found out that my wifi is not working either, tried the boot.img fix, didn't help. I get Wifi for a brief second and if I managed to connect it will stay for a while, but if I don't no wifi after that.

Kernels vs Radios
kkira13 said:
Kernel: faux
EDIT: just found out that my wifi is not working either, tried the boot.img fix, didn't help. I get Wifi for a brief second and if I managed to connect it will stay for a while, but if I don't no wifi after that.
Click to expand...
Click to collapse
Have you tried a different kernel? http://forum.xda-developers.com/showthread.php?t=1269247 (maybe its for AOSP only though)
Sensation Kernel Update (different and more recent than above): http://forum.xda-developers.com/showthread.php?t=1256668
Different (userfriendly) radios? http://forum.xda-developers.com/showthread.php?t=1459767
Remember to make a backup before install.

yes I have tried 2-3 kernels, including Bricked.
and I have changed 7-8 different radios/firmwares
P.S. fixed wifi with WiFix, at least this 2 issues are not connected

Greetings. I'm taking a stab at asking my question here because it seems sort of related.
I'm a T-mobile USA customer with a brand new SIM card in my Sensation 4g that I bought a few months ago.
My bootloader is unlocked, I'm S-off, I've flashed the custom firmware (version: 3.32.401.3) that was recommended for those flashing the Cyanogenmod 9 ROM. I'm currently using the most recent STABLE Cyanogenmod 9 ROM (not 9.1, but the STABLE 9 ROM). I'm using the stock Cyanogenmod 9 kernel (the one that came with the ROM: 3.0.26-g7290c7f). I never bothered to flash a new radio, not sure if that's a mistake or not.
My reception is good but it seems rather obvious that my phone is completely unable to hook up to or unaware of the 4g network. When downloading, the icon in the taskbar always shows either "3g" or "H" and when I check the "Status" in "About Phone" my "Mobile Network Type" is always listed as UMTS:3 or HSDPA:9.
Can anyone make any suggestions for how I might begin the trouble shooting process to remedy this issue. Thank you in advance for any sage like advice you might provide, I'm pretty lost here.

iamabot said:
Greetings. I'm taking a stab at asking my question here because it seems sort of related.
I'm a T-mobile USA customer with a brand new SIM card in my Sensation 4g that I bought a few months ago.
My bootloader is unlocked, I'm S-off, I've flashed the custom firmware (version: 3.32.401.3) that was recommended for those flashing the Cyanogenmod 9 ROM. I'm currently using the most recent STABLE Cyanogenmod 9 ROM (not 9.1, but the STABLE 9 ROM). I'm using the stock Cyanogenmod 9 kernel (the one that came with the ROM: 3.0.26-g7290c7f). I never bothered to flash a new radio, not sure if that's a mistake or not.
My reception is good but it seems rather obvious that my phone is completely unable to hook up to or unaware of the 4g network. When downloading, the icon in the taskbar always shows either "3g" or "H" and when I check the "Status" in "About Phone" my "Mobile Network Type" is always listed as UMTS:3 or HSDPA:9.
Can anyone make any suggestions for how I might begin the trouble shooting process to remedy this issue. Thank you in advance for any sage like advice you might provide, I'm pretty lost here.
Click to expand...
Click to collapse
H is good. It means you are on an HSDPA network. That's 4G for the purposes of this conversation (though what really constitutes 4G is a little more involved)
HSDPA:9 might just be the best speeds that are available in your area. For instance 8 is the best I can get at my house. No amount of better phones will fix that. It's just what's available from the tower.

Skipjacks said:
H is good. It means you are on an HSDPA network. That's 4G for the purposes of this conversation (though what really constitutes 4G is a little more involved)
HSDPA:9 might just be the best speeds that are available in your area. For instance 8 is the best I can get atso my house. No amount of better phones will fix that. It's just what's available from the tower.
Click to expand...
Click to collapse
That's helpful thank you. One last question in the interest of clarification. Should I find myself in an HSPA+ reception area, should I expect the information over the reception bars to change from 3g to 4g and would "Mobile Network Type" then reflect HSPA+ as opposed to HSDPA 9?
Just curious so I might know what to look for when crossing into better network areas.
Thanks again for the tip.

The H means 4g technically. You can update your radio and ril very easily. Will find links and edit post
http://forum.xda-developers.com/showthread.php?t=1202867
Sent from my HTC Sensation 4G using xda app-developers app

lackdog said:
The H means 4g technically. You can update your radio and ril very easily. Will find links and edit post
http://forum.xda-developers.com/showthread.php?t=1202867
Sent from my HTC Sensation 4G using xda app-developers app
Click to expand...
Click to collapse
Thanks for the link. I guess what I was wondering is whether or not I actually need to update my radio, I'd feel a lot more confident in my reception if I ever saw HSPA+ listed in my phone's "Mobile Network Type", but I never do. I had previously thought that HSDPA was 3G, but maybe I'm missing something.
Thanks for the link, flashing a new radio is something I had been giving consideration, I'm just wondering how user friendly the process is. Like picking a needle out of a haystack, or is there someway to narrow down what radio/ril combo is best for one's phone/network.
I'll read through the thread for the link you posted and update my progress here later. Thanks for the info.

iamabot said:
That's helpful thank you. One last question in the interest of clarification. Should I find myself in an HSPA+ reception area, should I expect the information over the reception bars to change from 3g to 4g and would "Mobile Network Type" then reflect HSPA+ as opposed to HSDPA 9?
Just curious so I might know what to look for when crossing into better network areas.
Thanks again for the tip.
Click to expand...
Click to collapse
your data connection will still say 3G, unless you start to use the data then it will automatically switch to 4G/H (saves battery this way)
HTC made a fault with the Sensation with building the antennas into the back case (hand over the back of the phone = small loss of reception)

Theres a program called getRIL in the play store. You can update your radio and ril as long as your root. Which i assume u are. I do it thep old fasion way though.
Sent from my HTC Sensation 4G using xda app-developers app

[Q] No connection. No service at all

I have a problem with the connectivity of my One X AT&T. I was on CleanROM 6 R2. Tried to install a sense 5 theme. Something went wrong during the installation. Got stuck in the HTC white screen, and it rebooted itself a few time but always to the HTC white screen. I was able to go into recovery and do a restore (after a few times that I couldn't enter the recovery). After the restore I had problems with my signal. I tried to flash a new RIL (HTC ATT 3.18 (Thanks to liamstears!) (0.24p.32.09.06_10.130.32.34): http://d-h.st/Maq). Tried flashing another RIL (ATT 2.20 (0.19as.32.09.11_2_10.105.32.25): https://www.dropbox.com/s/4sbtbmw2ra...105.32.25L.zip RIL (flash separately): https://www.dropbox.com/s/4u7p8jgvk2650hl/2.20RIL.zip). It didn't help. I tried installing a new ROM (CM10.1) every thing was OK, however I keep losing my signal (x in the network). I tried flashing the RUU 1.85 (of course I relocked the bootloader etc.). Now I'm on stock 1.85, I have signal (sometimes even full) however from time to time I lose the signal completely. It usually happens when switching cell towers (downloaded GSM Signal Monitoring from the play store), and I can get stuck with no signal for hours. Tried to check in the Phone info (*#*#4636#*#* in the dialer) and changing the GSM/WCDMA/LTE to WCDMA only or WCDMA preferred, turning off and on the radio etc. Don't know what to do that I haven't already done. Furthermore, I sometimes get stuck in a loop of the HTC white screen, and it boots over and over again to that screen (can do that for quite some time). Even after getting into the bootloader and selecting recovery, it sometimes doesn't enter the recovery. And even selecting shut down from bootloader and the phone is connected to the computer (for charging), it shuts down and after 2 min. it wakes up and get stuck in the HTC white screen loop all over again. Before all that I never had a problem with the signal. I was on hboot 1.09 (I still am), and s-off. I don't remember when version I was however I remember that is had (0.17 something in it can't remember if with 'a' or not). I noticed that RUU 1.73 is (0.16) that's why I didn't want to flash it and went straight to 1.85 however I don't remember I had the at&t boot animation when I got the phone almost a year ago. BTW, I live in Israel and my carrier is using 850 & 2100 MHz UMTS (the 2100 was a roaming one due to the fact it's a MVNO) and before that I was on another carrier that has 900 & 2100 MHz.
Please HELP! Having a phone without signal is like having a brick!

Have you tried using Google maps to find the radio towers in your area and flash accordingly?
Sent from my HTC One X using xda premium

Venomtester said:
Have you tried using Google maps to find the radio towers in your area and flash accordingly?
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
The only radio towers on google mas that I know i this:
https://maps.google.com/maps/ms?ie=UTF&msa=0&msid=217917717250281685326.0004c262acfff78edb974
and it doesn't show anything in Israel.
Furthermore, This is not a tower problem (I think). I had no problem with the original RIL that came with the phone (at&t).

I think the problem technically is not the tower itself. The problem, I think, is that there are no wcdma or lte towers there. AT&T, Verizon and Sprint only built the towers in the U.S. and Canada. While GSM towers are global, the phones were made to be used in these areas. When you flashed 3.18 radio it updated your partition to pick up these latest towers and I think that is why you are dropping or not connecting or it might have corrupted the radio. The only thing I can think of is to try earlier versions and set them to gsm only. I will try seaxhing to see if I can find out what towers are over there.
Sent from my HTC One X using xda premium
---------- Post added at 08:45 AM ---------- Previous post was at 08:18 AM ----------
The gsm for Israel is 900-1800 and 3G frequency is 850/2100.
Sent from my HTC One X using xda premium

Venomtester said:
I think the problem technically is not the tower itself. The problem, I think, is that there are no wcdma or lte towers there. AT&T, Verizon and Sprint only built the towers in the U.S. and Canada. While GSM towers are global, the phones were made to be used in these areas. When you flashed 3.18 radio it updated your partition to pick up these latest towers and I think that is why you are dropping or not connecting or it might have corrupted the radio. The only thing I can think of is to try earlier versions and set them to gsm only. I will try seaxhing to see if I can find out what towers are over there.
Sent from my HTC One X using xda premium
---------- Post added at 08:45 AM ---------- Previous post was at 08:18 AM ----------
The gsm for Israel is 900-1800 and 3G frequency is 850/2100.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
I already mentioned that my carrier is using 850/2100 (3.9G), and before the change to 3.18 I had 3.17 and before that I had CM10 etc. with no problems at all with my network connection. So using GSM is not the right answer for that (as far as I know). What is more troubling is that I am now using the stock RUU for 1.85 so I'm not even close to 3.18 and flashing RUU is also flashing the radio and other stuff, but still no change in the reception, as it comes and goes (like I said in the OP).

etai-ab said:
I already mentioned that my carrier is using 850/2100 (3.9G), and before the change to 3.18 I had 3.17 and before that I had CM10 etc. with no problems at all with my network connection. So using GSM is not the right answer for that (as far as I know). What is more troubling is that I am now using the stock RUU for 1.85 so I'm not even close to 3.18 and flashing RUU is also flashing the radio and other stuff, but still no change in the reception, as it comes and goes (like I said in the OP).
Click to expand...
Click to collapse
If you've already narrowed it down to being a hardware issue, why are you posting here?
CM does not pull from the same radio driver sense uses, So whatever you do in sense will not affect CM, if flashing different CM radios doesn't do it and RUU doesn't seem to do it, You could try RUUing up to 3.18 and see if it makes a difference but I doubt it will.
The problem is either the radio in your phone (hardware) or the towers. If you're sure it's not the towers that leaves one possibility.

http://forum.xda-developers.com/showthread.php?p=37227608
Here is a list of ruus if you wish to return to the 2.20 and see if that may fix your problem.
Sent from my HTC One X using xda premium

If you have another phone, test the sim card. If you get same results it is a service issue. Sim cards does not affect service. But if it does work, try the above steps.
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3G problems on 5.0.1

Hello everybody,
I am using a Nexus 5 for a full year now and I noticed from the beginning that I never can get 3G signal, but when I am in the nearest city I van get 4G/LTE. Last week I wanted tot know more about it so I inserted my sim into another phone and immediately I had full 3G connection. So I updated to 5.1.0 with the new radio for 5.1.0 and I still couldn't get 3G. When I googled for 3g coverance I noticed I shoud've get full 3G. however only 2G and 4G works but the problem is that there is no 4G coverance in my hometown so I am stuck at the slow 2G. I'm in the netherlands and I already tried all options in *#*#4636*#*# but I still dont get 3G. also my apn settings are correct. so my last hope is to ask here if anyone knows what to do. I'll include a picture of my baseband version etc.
Sent from my Nexus 5 using XDA Free mobile app

If it doesn't work after clean flashing factory images and trying different radio versions, it might be a hardware problem.

It's sad because I don't have any warranty anymore because I've opened the device up to replace the screen myself. Do I need to change the whole motherboard?
Sent from my Nexus 5 using XDA Free mobile app