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SIM problem on my One XL (LTE)

Hi since I can't find a forum for the One XL I assume it's shared within this one.
I just got my One XL yesterday and it's been having what seems to be a SIM card problem. The phone will be normal sometimes but will lose all mobile connectivity suddenly. Is this a known problem? The connectivity comes back on its on but it could be after a few minutes or few hours. Apart from returning the phone, is there anything I can do? Note that WiFi works perfectly.

Yes sir that would be a common issue among the hox .

plau13 said:
Hi since I can't find a forum for the One XL I assume it's shared within this one.
I just got my One XL yesterday and it's been having what seems to be a SIM card problem. The phone will be normal sometimes but will lose all mobile connectivity suddenly. Is this a known problem? The connectivity comes back on its on but it could be after a few minutes or few hours. Apart from returning the phone, is there anything I can do? Note that WiFi works perfectly.
Click to expand...
Click to collapse
When you say "XL," so you mean an imported XL from Asia? Rogers? AT&T? The AT&T's the one having some radio issues. I don't think the Rogers' is. And if you imported yours there could be a number of reasons you're having connectivity issues.

@barryH_GEG: I live in Hong Kong and the One XL has the right bands for 4G and HSPA+.
@tyshemi: is there a software fix to this or is returning it the only option?

plau13 said:
Hi since I can't find a forum for the One XL I assume it's shared within this one.
I just got my One XL yesterday and it's been having what seems to be a SIM card problem. The phone will be normal sometimes but will lose all mobile connectivity suddenly. Is this a known problem? The connectivity comes back on its on but it could be after a few minutes or few hours. Apart from returning the phone, is there anything I can do? Note that WiFi works perfectly.
Click to expand...
Click to collapse
Gentlemen,
What the h.. is with this phone? I got it as well last Friday and I have exactly the same problem - it loses all mobile connectivity and only emergency calls can be done .. for which a SIM card won't be needed. It doesn't look like a software pronlem to me, it looks more like a hardware problem! I've seen this behavior immediately after I received the phone and I immediately went with the phone in a Vodafone shop. The guy did not look surprise at all. He took out the micro SIM for couple of times and after wards it worked OK. I went home and after couple oh hours it happened again!!!
@ HTC developers:
Gentlemen, are you joking with this device? What's going on in the testing team?
Indeed it is a LTE phone - and it is known already that there are lots of problems with the 4G software, but the SIM card not to be seen by the mobile? How could this be possible???
Please do something about this!
I will send back this device immediately!
Cheers

I myself have exchanged my HOX for this issue twice now. AT&T knows about this issue and refers to it as a manufacturing defect with the SIM card reader while not in a LTE area.
Sent from my HTC One X using xda premium

In Australia, we have this issue on our 32GB One XL. Apparently it's a particular version of micro SIM. One specific version has this issue, the other doest.
I've seen it happen a couple of times on mine since I got it. If it happens again, I'm going to put some very thing pieces of paper under the sim card to make it marginally thicker and press firmer against the contacts when it's inserted.

plau13 said:
Hi since I can't find a forum for the One XL I assume it's shared within this one.
I just got my One XL yesterday and it's been having what seems to be a SIM card problem. The phone will be normal sometimes but will lose all mobile connectivity suddenly. Is this a known problem? The connectivity comes back on its on but it could be after a few minutes or few hours. Apart from returning the phone, is there anything I can do? Note that WiFi works perfectly.
Click to expand...
Click to collapse
by all mobile connectively u mean wifi too?
i have this problem too.dont lose wife though..and i am not sure its hardware or system fault.... since i failed to notice it when i was using stock.. so i having feeling its something after rooting
so i reverted to stock .. and haven't got any troubles yet.. hopefully it doesnt come back .. i have been using it heavily too
Edit: never mind it dropped signal twice already now

dkirchik said:
I myself have exchanged my HOX for this issue twice now. AT&T knows about this issue and refers to it as a manufacturing defect with the SIM card reader while not in a LTE area.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Hi guys,
Just to give you an update about my HTC ONE XL. Unfortunately, I have only bad news about it !
I went yesterday to Vodafone shop and they changed the micro SIM card. They gave me a different one - also a brand new one, and I have the same problem, the phone loses the connection with the SIM card. Since yesterday it happened already twice! I've seen some discussions here about the WiFi. Just to mention that in my case the Wifi can be used, only the network is gone and stays gone until I restart the phone.
HTC ONE X also loses the connection with the SIM?
My micro SIM card does not have a 4G subscription anyway..
Cheers

Try putting tape on the plastic side of the microSIM to see if maybe you can get a more solid connection?

My One XL would keep loosing reception and saying "no sim" even though it was clearly working. I deactivated my SIM pin and it seems to have stopped dropping out and saying "no sim" Give it a try.

I have One XL and I have no sim issues, it could be the piece that you use. As for the signal drop, it does happen to me sometime, and I think it tries to connect at LTE then goes back 3G. Try to force 3G only then try.
Setting on network menu could help too. Try *#*#4636#*#*
Sent from my HTC One XL using Tapatalk 2

Been having the same issue and found it in the logs. Not sure if other people are seeing the same thing though. Post with info.

Hi guys,
I sent back the phone last week and yesterday I got a new one with a "newer" IMEI. Since yesterday, the phone did not lose the connection with the SIM card.
I was told that, indeed, some of the first HTC ONE XL modeles released on the market had the problem described by us on this forum/topic. The nature of the problem, hardware or software is not known to me so far but I believe it's a bit of both..
Cheers

This happened to me and updating radios to 1.88 or higher fixed it. did not work well with 1.85 radio. Radios dont come with custom roms. They have to be installed separately or with a ruu. There is a radio thread in development. You must be rooted. Ive only had 1 person tell me they still had problems after updating.. if it doesnt fix it, get another phone. Its a legit reason. Main reason for a phone is to make calls. kinda hard to do that with no mobile connection. :crying:
Edit: here is the radio thread. 1.88 or higher. 1.88 is my favorite. The telus seems to be great also. http://forum.xda-developers.com/showthread.php?t=1694012

necstlevel said:
Hi guys,
I sent back the phone last week and yesterday I got a new one with a "newer" IMEI. Since yesterday, the phone did not lose the connection with the SIM card.
I was told that, indeed, some of the first HTC ONE XL modeles released on the market had the problem described by us on this forum/topic. The nature of the problem, hardware or software is not known to me so far but I believe it's a bit of both..
Cheers
Click to expand...
Click to collapse
I recall the comments above. The connection with the SIM card was also lost for the new HTC ONE XL phone, but this time after about 40 hours !
Software running on this phone: 1.82.162.6
Android Version: 4.0.3
I have no other option but to send it back again, and go for a Samsung ..

necstlevel said:
I recall the comments above. The connection with the SIM card was also lost for the new HTC ONE XL phone, but this time after about 40 hours !
Software running on this phone: 1.82.162.6
Android Version: 4.0.3
I have no other option but to send it back again, and go for a Samsung ..
Click to expand...
Click to collapse
This SIM issue is not even looked into that's what annoys me. I am testing it on gsm mode only hopefully it doesn't drop anymore
Sent from my HTC One X using xda app-developers app

necstlevel said:
I recall the comments above. The connection with the SIM card was also lost for the new HTC ONE XL phone, but this time after about 40 hours !
Software running on this phone: 1.82.162.6
Android Version: 4.0.3
I have no other option but to send it back again, and go for a Samsung ..
Click to expand...
Click to collapse
jags_the1 said:
This SIM issue is not even looked into that's what annoys me. I am testing it on gsm mode only hopefully it doesn't drop anymore
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
Did you try the 1.88 radio?

nugzo said:
Did you try the 1.88 radio?
Click to expand...
Click to collapse
No...I am testing Rogers one currently. I am in Canada anyways..Will give a shot to 1.88 radio too
Sent from my HTC One X using xda app-developers app

i have question though.. the guys who have sim problem does your network drop from 3-4 bars to 0?.. in mine i have noticed that it actually drops to 1 and then only goes to 0 bars for 2 sec.. then catches up... but if i keep it to gsm only mode.. i get full bars all the time... what do you guys think is the problem.. network or the phone has bad way to switch between the network types?
and jsut in general the network fluctuates a lot on this phone.

Nexus 5 CANT connect to 3G Network

A month or so ago I started to get only EDGE signal from my carrier wherever I went , every time, I've been over a month trying every solution and nothing has worked, here's details of my findings and what I've done.
1) I tried to go back to stock firmware, didn't work.
2)I tried flashing different radios from the XDA thread, nothing.
3) I called my carrier and did some tests, checked the APNs and the phone network config, everything was ok and still not working.
4) I tried my girlfriends SIM(from the same carrier) and same result, no H signal anywhere.
5) I opneded the freaking phones back to check the MIMO antenna and it seems alright.
6) I went to another carriers shop and tried their SIM, and boom it worked with H just fine.
I'm very curious on what the probke. May be, I should point out that my carrier uses the 1900mhz band for HSPA, while the other carrier uses the 900mhz band for HSPA, so, somehow the phone isn't able to connect to the 1900 band, but it does connect to the 900 band with no issues, how in hell is this possible? It worked just fine for 3 months until now...
I am overseas so I cannot ask for a replacement from Google, also I don't wanna sell the phone to get another one, and I don't wanna have to switch carriers , I've been with this one for years and I have a great plan and I have tons of services tied to this number, I do t wanna go thru the hassle of changing everything.
So, any recommendations, any technical help? Ideas? Please let me know I really think this is a software issue and I wanna get it fixed!
Sent from my Nexus 5 using Tapatalk

Clearly two things are possible,
1- You messed up by flashing different radio bands, lesslikely.
2- The 1900 band in your phone antenna is damaged, you better do a replacement, i am sure in this one.
---------- Post added at 04:07 PM ---------- Previous post was at 04:01 PM ----------
Fix - forum.xda-developers.com/nexus-4/help/nexus-4-radio-3g-hspa-signal-t2192578
Read the replies and posts carefully and you gonna find a fix.

f_u_006 said:
Clearly two things are possible,
1- You messed up by flashing different radio bands, lesslikely.
2- The 1900 band in your phone antenna is damaged, you better do a replacement, i am sure in this one.
---------- Post added at 04:07 PM ---------- Previous post was at 04:01 PM ----------
Fix - forum.xda-developers.com/nexus-4/help/nexus-4-radio-3g-hspa-signal-t2192578
Read the replies and posts carefully and you gonna find a fix.
Click to expand...
Click to collapse
1) I didn't flash any radios until the problem was already there.
2) where am I supposed to find a replacement?
3) tried all solutions in that post, no luck.
Sent from my Nexus 5 using Tapatalk

i
LRC1710 said:
A month or so ago I started to get only EDGE signal from my carrier wherever I went , every time, I've been over a month trying every solution and nothing has worked, here's details of my findings and what I've done.
1) I tried to go back to stock firmware, didn't work.
2)I tried flashing different radios from the XDA thread, nothing.
3) I called my carrier and did some tests, checked the APNs and the phone network config, everything was ok and still not working.
4) I tried my girlfriends SIM(from the same carrier) and same result, no H signal anywhere.
5) I opneded the freaking phones back to check the MIMO antenna and it seems alright.
6) I went to another carriers shop and tried their SIM, and boom it worked with H just fine.
I'm very curious on what the probke. May be, I should point out that my carrier uses the 1900mhz band for HSPA, while the other carrier uses the 900mhz band for HSPA, so, somehow the phone isn't able to connect to the 1900 band, but it does connect to the 900 band with no issues, how in hell is this possible? It worked just fine for 3 months until now...
I am overseas so I cannot ask for a replacement from Google, also I don't wanna sell the phone to get another one, and I don't wanna have to switch carriers , I've been with this one for years and I have a great plan and I have tons of services tied to this number, I do t wanna go thru the hassle of changing everything.
So, any recommendations, any technical help? Ideas? Please let me know I really think this is a software issue and I wanna get it fixed!
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
But u didn't test ur SIM-card on another Nexus5
If ur sim on another n5 works fine so ur sim-card is ok
but ur phone with another sim-card also works fine
so this is between ur sim-card and ur phone
a compatibility or any damage on sim-card and ... caused these issues
This is not because of ur phone
ur phone hardware and software are fine ur must check operator & etc.
maybe ur operator is not compatible 100% for n5 or KK 4.4.2 !
:good:

x102x96x said:
But u didn't test ur SIM-card on another Nexus5
If ur sim on another n5 works fine so ur sim-card is ok
but ur phone with another sim-card also works fine
so this is between ur sim-card and ur phone
a compatibility or any damage on sim-card and ... caused these issues
This is not because of ur phone
ur phone hardware and software are fine ur must check operator & etc.
maybe ur operator is not compatible 100% for n5 or KK 4.4.2 !
:good:
Click to expand...
Click to collapse
I forgot to say that I did test my SIM card on a Galaxy S4 and it worked just fine, also the Nexus 5 d820 supports the bands of my carrier, and I used it for 3 months no issues so, when the problem started I already had been with 4.4.2 for some time so it is not thay , this is a mistery man I don't know what to do :s
Sent from my Nexus 5 using Tapatalk

LRC1710 said:
I forgot to say that I did test my SIM card on a Galaxy S4 and it worked just fine, also the Nexus 5 d820 supports the bands of my carrier, and I used it for 3 months no issues so, when the problem started I already had been with 4.4.2 for some time so it is not thay , this is a mistery man I don't know what to do :s
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
downgrade to 4.4 !!!
best way;
unlock > root > custom recovery > multiRom > then install any ROM u like, for example stock 4.4
or 4.4 based release of CM
:good:

x102x96x said:
downgrade to 4.4 !!!
best way;
unlock > root > custom recovery > multiRom > then install any ROM u like, for example stock 4.4
or 4.4 based release of CM
:good:
Click to expand...
Click to collapse
As I said, my connection was working fine for weeks with 4.4.2 , hence it is not the cause of the problem, switching it to 4.4 won't make any difference
Sent from my Nexus 5 using Tapatalk

This might sound silly, but you made sure you're not forcing 2G/edge mode, right? Have you tried forcing 3g (WCDMA only) mode from this menu?

frigidazzi said:
This might sound silly, but you made sure you're not forcing 2G/edge mode, right? Have you tried forcing 3g (WCDMA only) mode from this menu?
Click to expand...
Click to collapse
Yes, tried everything in that menu
Sent from my Nexus 5 using Tapatalk

Bump
Sent from my Nexus 7 using Tapatalk

Switched from Nexus 4 to Nexus 5 have the same problem.

I found myself having a very similar problem after flashing CM12 on my nexus 5 (D821). I flashed the 20 jan Nightly and everything was working fine untill i update to the 22nd jan nightly when my 3g simply stopped connecting or had very spotty signal, i didn't give it much thought at first thinking it was a nightly problem but after one week i reflashed stock ics, locked the bootloader, event tried kit-kat and the problem is still there. Before flashing cm 12 2g/3g/lte switching was working perfectly for about one year.
So utill now: i flashed different stock rom's, different kernels, radios, custom roms and nothing worked. When i tried switching the sim with another one from the same network, 3g worked on the other phone so i doubt that the sim is defective, but on my nexus i had the same connectivity issues. I also played with the *#*#4636#*#* menu and managed to get 4G working again but only in CDMA mode and I cannot receive any calls or texts, but the internet connection is working, 3G also connected at some point but the signal was very poor.
I am lost now, and also desperate because edge is too slow for anything, what confuses me though is that this seems to be a software issue since the cause was me flashing a different ROM but all the signs point to a hardware issue.
Can anyone plese give me a second opinion? Is there any fix for this? (Also i recently went to my network's service to replace my screen assembly, could also this be an issue? the issue appeared about 2 days after getting it back from them, also about the same time i flashed cm12)
Thank you for your time.

Cannot get LTE on my AT&T LG G2 only 4G

I'm running 4.4.2 on my LG G2 for AT&T
My wife just got the same phone and her phone shows 4G/LTE Mine shows only 4G
I checked our APN settings for both and they're the same
I checked through the 4636 code through the phone and it shows only the HSPA letters where hers shows up once again with LTE
ANY advice would be great

Try turning data off then on again, it will force it to search for the network.
Sent from my LG-D800 using xda app-developers app

Swetnes said:
Try turning data off then on again, it will force it to search for the network.
Sent from my LG-D800 using xda app-developers app
Click to expand...
Click to collapse
i tried that one...and i tried the 4646 code and theres no option to change the NETWORK type...this friggin sux...no LTE on this phone and only "4G"...been tryng to figure this one out..
any advice much appreciated.

Maybe replace it?
If this is a new phone that you haven't tampered with, I suggest that you exchange it. New phones don't need any change in settings to connect to LTE out of the box.
Maybe it's a hardware problem. Did this problem just appear out of nowhere? (maybe after the update)?

Like the poster above if its stock return it otherwise reflash to stock to confirm the issue is still there, here's another thread dealing with the same issue http://forum.xda-developers.com/showthread.php?t=2702386
Sent from my LG-D800 using Tapatalk

you might be 'ROAMING'
this happens to me. i think theres no att tower near me, i think they use someone elses lte tower, but half of the android phones ive used need roaming enabled to connect to lte in my area. try that it might work.. its in the normal settings app under networks enable all roaming. never had any extra charges. att covers the nation and doesnt count local roaming.
BUT i agree with this guy if my suggestion doesnt work
1meanrex said:
Like the poster above if its stock return it otherwise reflash to stock to confirm the issue is still there, here's another thread dealing with the same issue http://forum.xda-developers.com/showthread.php?t=2702386
Sent from my LG-D800 using Tapatalk
Click to expand...
Click to collapse
yea what he said but with links
http://forum.xda-developers.com/showthread.php?t=2633150
scroll down to number 4
DONT BE A NEWB

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

Is it possible that i may have messed up the phone?

I have had an OPO since 2014 november, and since then, i have had install many various roms. But since august and i installed official cm12.1, my phone stopped working properly. While the phone is just idle on lte, when i get a call, i see the antenna change back to 3g but i dont get the call, and couple seconds later for the caller, call goes to voicemail. Or when i try to make a call on lte, most times, it doesnt connect like it cant properly work on 3g networks. When im on 2g everything works fine. But obviously i dont wanna get stuck on 2g. Also, i have tried probably every possible related thread and method, including going stock, going cm11s ( first official stock rom), installing different recoveries (twrp 2.8.6.0, 2.8.7.0.5 materialized, philz) and the modems and basebands even with fastboot. And nothing seemed to worked for me. So i was just wondering if i did mess up my phone or my phones modem or/and antenna. And how would i know for sure? Btw i also tried different sims. No luck.
Sent from my A0001 using Tapatalk

*bump*
Sent from my A0001 using Tapatalk

I'd try to restore it to completely stock:
http://forum.xda-developers.com/oneplus-one/general/guide-return-opo-to-100-stock-t2826541

CafeKampuchia said:
I'd try to restore it to completely stock:
http://forum.xda-developers.com/oneplus-one/general/guide-return-opo-to-100-stock-t2826541
Click to expand...
Click to collapse
I tried this one. I also tried to go back to 11s as well. Same thing every time. I can only have phoning experience on 2g. On lte works great for the data but 3g is hit or miss. I wonder if there is a way the set up the phone to go between lte and 2g for incoming/outgoing calls bypassing 3g option. I would be contempt with that.
Sent from my A0001 using Tapatalk

It sounds like you need to do some research in here:
http://forum.xda-developers.com/oneplus-one/general/ref-oneplus-one-modem-collection-t2858734

I did check that, also tried couple of them radios. I'm on the hybrid one. Problem still exists. I'm almost convinced it's hardware problem like somehow the modern is failing. Thanks tho
Sent from my A0001 using Tapatalk

Try another sim card

If your network requires to change your APN, this fix resolved my radio connectivity issue. I would check with provider if you are on correct APN setting. Your phones default may not be same as your provider APN.
https://forums.oneplus.net/threads/cos-12-1-non-rooted-user-w-mobile-connectivity-issues.361244/
If that fire doesn't work, look thru below thread, especially LTE issue.
https://forums.oneplus.net/threads/update-17-09-15-cos-12-1-yog4pas1no-bugs-discussion-thread.349560/

deziguy420 said:
Try another sim card
Click to expand...
Click to collapse
I did. Didnt matter. And i tried my simcard on my lumia 925. No problems at all.
Sent from my A0001 using Tapatalk

byoungc said:
If your network requires to change your APN, this fix resolved my radio connectivity issue. I would check with provider if you are on correct APN setting. Your phones default may not be same as your provider APN.
https://forums.oneplus.net/threads/cos-12-1-non-rooted-user-w-mobile-connectivity-issues.361244/
If that fire doesn't work, look thru below thread, especially LTE issue.
https://forums.oneplus.net/threads/...2-1-yog4pas1no-bugs-discussion-thread.349560/
Click to expand...
Click to collapse
I have also tried that. Im just curious if there is a particular hardware issue with the modem rather than software. I think i have tried all the firmwares, modem files, going back stock tricks that xda, and other forums provided. I cant think of anything else.
Sent from my A0001 using Tapatalk