Database Users

Major Legend Issues

Hi all, new member to the forums but have used the knowledge here before many times.
I bought an unlocked Bell HTC Legend and have successfully used it on AT&T until encountering major issues yesterday. The phone started to lose signal, flopping between gsm, edge, 3g, and nothing. Then it started randomly restarting over and over again. Then I lost signal completely and it was telling me to insert a sim card when i would go into check the APN settings. Wouldn't give the error on the main screen when there is actually no sim in the phone, would just say no service. I took the sim out of the phone and tried it in my Nokia and it worked perfectly fine.
Heard issues from others about using the Bell ROM with AT&T so I proceeded to try and flash the phone with the generic WWE ROM to try and fix it. Was able to create a gold card after multiple attempts but could never get the phone to stay connected to HTC sync and the computer as it would disconnect when running the ROM .exe file. Outside of running the ROM .exe it would connect to the PC fine. Tried to update the drivers on the phone because i'm running windows 7 x64 but it wouldn't let me load the vista x64 drivers, just kept telling me that the driver loaded was the latest and correct.
I factory reset the phone as a last attempt and that worked for a little bit but then the signal errors happened again and the phone would show full bars and the 'H' but no data would be uploading or downloading most of the time. It had detected and latched onto a signal i guess but wouldn't consistently transfer data. I messed around with the APN settings again and now its resarting itself again and showing no signal most of the time.
I'm really not sure what to do at this point. It seems like a phone issue not so much the network or the sim. Not sure if its a battery contact or sim contact issue? I'd like to try and get the phone to stay connected so I can flash the ROM and see if that works.
Any help or past experience would be helpful. I feel like i've tried everything and searched everywhere for answers.
Thanks.

njhokie said:
the signal errors happened again and the phone would show full bars and the 'H' but no data would be uploading or downloading most of the time.
Click to expand...
Click to collapse
as far as i know the bars show signal strength of the GSM and not necessarily of the data quality. i hav the same issu ( showing bars but no data ) in some areas that are well covered by G2 but poor by G3 .
this brings me to the next question :
is data and pnone impaired by this problem? or only data ?
also it could be a fiscal problem, maybe the antenna is having trouble ?
good luck

The phone and data are affected.
I was finally able to flash it to the generic 1.31 WWE ROM by updating the windows device drivers while the program was trying to install the ROM. Found that info reading through all the comments in the downgrade thread.
The phone is still having issues keeping a connection though. It pulled the APN info off the sim but its not the same info I was using before when I manually entered the AT&T settings i've found searching the net. Its now reads this:
Name: MediaNet
APN: same
Proxy: same
Port: 80
Username: same
Password: *******
Server: Not Set
MMSC: same
MMS Proxy: 66.209.11.32
MMS Port: 8080
MCC: 310
MNC: 410
APN Type: *
The phone connected for a while but it was intermitent. I entered the other AT&T APN settings i've found on the web and those didn't work right either, connection kept dropping.
I don't know what is going on. I'm guessing its a bad phone or bad sim? Antenna or something?
Update: I'm using the default APN settings it pulled off the sim and it seems to be working ok for the moment. Freaking phone.

Update 2: Installed a version of Swype, had pinch to zoom and lag issues, restarted the phone, connnection became crap. Uninstalled swype, seemed to work but its still have connection issues. Shows connection and bars and data going up but nothing coming in. Goes in and out of connection.
Just for those following along.... I guess I should try and contact HTC.

Found this very interesting thread:
forum dot vodafone dot co dot uk/topic/58054-htc-legend-antenna-issue/
and this:
code dot google dot com/p/android/issues/detail?id=2845&q=auto%202g%203g%20switching&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars
2g/3g switching issue w/ Andriod? Is there a better ROM out there that will avoid this? My wives Samsung Galaxy doesn't have this issue (knock on wood).

It is true the antenna is in the bottom cover of the phone
and now i remember t had some issues as well with the reception
i used WD40 to clean the contact points from the phone and the cover
i did not spray it directly but used a point of a cloth to put it on the right places and never had trouble again

k.mooijman said:
It is true the antenna is in the bottom cover of the phone
and now i remember t had some issues as well with the reception
i used WD40 to clean the contact points from the phone and the cover
i did not spray it directly but used a point of a cloth to put it on the right places and never had trouble again
Click to expand...
Click to collapse
I wouldn't use WD40, it leaves a residue behind...
If you want to clean those contacts, a simple eraser works fine.

[Q] MMS send/receive issue on AT&T

So while I wait for AT&T level 3 support to look into this and get back to me, thought I would see if anyone else has seen this issue. I had my original S4 stock rooted since it came out and never had an issue. Night before I was traveling it starts rebooting randomly and when I wake up the next morning it was dead. I was sent a refurb S4 (MF3) and again rooted it, did my usual Titanium freeze of same bloat as previous phone. Things were fine for a week and then I found out I could no longer send or receive MMS. I get an error that it is expired or not available. Spent a few hours on the phone with support, they had me change sim card (I just used my sim with replacement phone instead of the one they sent with it.) That did not fix it. If I power the phone off and back on I can usually get 1 MMS before it fails again. Did a factory reset, it worked for a few test MMS they sent and then stopped working. So they sent another refurb phone. I get it yesterday (MF3 again lucky me) and root it, didn't freeze anything and test it. Everything is working good for a few hours, sent and received like 20 pics to verify it. Then after a few hours, I can no longer send/receive them again. Internet/data works fine on the phone when the MMS issues happen. The MMS issue occurs whether sending or receiving from/to all 4 main US providers so it's not provider specific either.
APN is the default. They say my account is fine. The other 2 phones (S4 and S3 both not rooted) on my account work fine, though they are in a different state than I am. I tested while I was out running errands to make sure it wasn't a tower issue. Tech support provisioned my phone again several times. At this point I am out of ideas. Multiple sim cards and phones and the same issue. Doesn't make sense to me that power cycling or factory reset usually fixes it for a few minutes to an hour and then it stops again. So far they haven't made me go to a service center. Have a feeling if I go there they will try and blame it on being rooted when that isn't the issue.
Any ideas of what else I can try while I wait?

blkhwkz said:
So while I wait for AT&T level 3 support to look into this and get back to me, thought I would see if anyone else has seen this issue. I had my original S4 stock rooted since it came out and never had an issue. Night before I was traveling it starts rebooting randomly and when I wake up the next morning it was dead. I was sent a refurb S4 (MF3) and again rooted it, did my usual Titanium freeze of same bloat as previous phone. Things were fine for a week and then I found out I could no longer send or receive MMS. I get an error that it is expired or not available. Spent a few hours on the phone with support, they had me change sim card (I just used my sim with replacement phone instead of the one they sent with it.) That did not fix it. If I power the phone off and back on I can usually get 1 MMS before it fails again. Did a factory reset, it worked for a few test MMS they sent and then stopped working. So they sent another refurb phone. I get it yesterday (MF3 again lucky me) and root it, didn't freeze anything and test it. Everything is working good for a few hours, sent and received like 20 pics to verify it. Then after a few hours, I can no longer send/receive them again. Internet/data works fine on the phone when the MMS issues happen. The MMS issue occurs whether sending or receiving from/to all 4 main US providers so it's not provider specific either.
APN is the default. They say my account is fine. The other 2 phones (S4 and S3 both not rooted) on my account work fine, though they are in a different state than I am. I tested while I was out running errands to make sure it wasn't a tower issue. Tech support provisioned my phone again several times. At this point I am out of ideas. Multiple sim cards and phones and the same issue. Doesn't make sense to me that power cycling or factory reset usually fixes it for a few minutes to an hour and then it stops again. So far they haven't made me go to a service center. Have a feeling if I go there they will try and blame it on being rooted when that isn't the issue.
Any ideas of what else I can try while I wait?
Click to expand...
Click to collapse
Well it's certainly good you've troubleshooted many different possibilities. Sounds odd to me under the circumstances that the issue persists. I assume you have tried different content when testing these MMs? (i.e. not sending the same picture or message, but different variations or pictures)?
It makes no viable sense why this would be occurring especially based on all of your testing. Does this issue occur only on cellular connection and/or wifi?

Bad SIM card?

FourPointedFreak said:
Well it's certainly good you've troubleshooted many different possibilities. Sounds odd to me under the circumstances that the issue persists. I assume you have tried different content when testing these MMs? (i.e. not sending the same picture or message, but different variations or pictures)?
It makes no viable sense why this would be occurring especially based on all of your testing. Does this issue occur only on cellular connection and/or wifi?
Click to expand...
Click to collapse
With Wifi on or off. Different pictures, different people. Definitely an odd issue.

WoodburyMan said:
Bad SIM card?
Click to expand...
Click to collapse
Tried 2 sim cards so far, have a third here that came with the refurb yesterday so I could always try that next.

blkhwkz said:
With Wifi on or off. Different pictures, different people. Definitely an odd issue.
Click to expand...
Click to collapse
Well, i'm certainly intrigued to know how you fix it. Keep us updated.

So I am still waiting on AT&T to actually do something to resolve this. They claim level 3 is looking into it and claim they can't update my case to have level 3 support call me. In the meantime it looks like I have found a workaround to resolve my issue. Currently my phone has the default phone APN. I added a 2nd APN with the following values:
Name: Cingular MMS
APN: wap.cingular
Proxy: wireless.cingular.com
Port: 80
MMSC: http://mmsc.cingular.com
MMS proxy: wireless.cingular.com
MMS port: 80
MMS protocol: WAP 2.0
MCC: 310
MNC: 410
APN type: mms
I saved it and so far I have been able to send/receive MMS again for the last 11 hours. That is the longest it has worked since I started having issues. Now if level 3 support ever calls me I can tell them what I did so they can try and figure out why the normal APN is not working for me.

I had quite similar issues sending and receiving MMS messages this week, turned out to be Adblock Plus stopping pictures from being sent/received through port 80. Disabled Adblock temporarily, and MMS worked perfectly. Perhaps you are in the same boat? Or maybe another application blocking the ports? Complete shot in the dark here, as I am a very new owner of the S4.

TraJiK said:
I had quite similar issues sending and receiving MMS messages this week, turned out to be Adblock Plus stopping pictures from being sent/received through port 80. Disabled Adblock temporarily, and MMS worked perfectly. Perhaps you are in the same boat? Or maybe another application blocking the ports? Complete shot in the dark here, as I am a very new owner of the S4.
Click to expand...
Click to collapse
I do (well did) have Adblock Plus installed. Just deleted my workaround APN and uninstalled Adblock Plus for now to test. So far it works, but I will give it a few hours to test some more.
Thanks
Checked out the forums for adblock plus and there are reports of this issue going back to November 2012. Looks like this was definitely my issue.

adblock causes problems on port 80 for MMS, your provider should have a few ports to chose from. Mine being with Rogers, i chose port 8080 in APN settings.
This fixed my issue permanently.
(Rogers had replaced the phone twice thinking it was a hardware issue)

[Q] No service after trying LTE

Hi
I was playing around with my phone and tried the old hack through the settings screen, *#*#4636#*#*.
Switched it to LTE and set up a new APN for Rogers LTE.
It Didn't work. After more reading I discovered this wouldn't work for me anyway. I have Android 4.4.2 and I don't think my SIM is LTE enabled.
I rebooted thinking it would just go back to the original settings.
It seems to have gone back but now I have No signal at all.
I am with Rogers. I tried going back to the original APN settings and selecting Rogers.
The phone is finding the correct networks for my area.
I tried the Reset to default in the APN settings. This sets the APNs to Rogers LTE and chatr, not the original Rogers APN that I started with.
The phone is rooted but running stock Android 4.4.2.
The baseband seems correct.
What have I done and how do I fix it?
Have I done something to the Rogers SIM?
Thanks

Angus_xda said:
Hi
I was playing around with my phone and tried the old hack through the settings screen, *#*#4636#*#*.
Switched it to LTE and set up a new APN for Rogers LTE.
It Didn't work. After more reading I discovered this wouldn't work for me anyway. I have Android 4.4.2 and I don't think my SIM is LTE enabled.
I rebooted thinking it would just go back to the original settings.
It seems to have gone back but now I have No signal at all.
I am with Rogers. I tried going back to the original APN settings and selecting Rogers.
The phone is finding the correct networks for my area.
I tried the Reset to default in the APN settings. This sets the APNs to Rogers LTE and chatr, not the original Rogers APN that I started with.
The phone is rooted but running stock Android 4.4.2.
The baseband seems correct.
What have I done and how do I fix it?
Have I done something to the Rogers SIM?
Thanks
Click to expand...
Click to collapse
Did you flash a LTE Hybrid?
Sent with my Nexus® 10 minus 3

Berrydroidcafe said:
Did you flash a LTE Hybrid?
Sent with my Nexus® 10 minus 3
Click to expand...
Click to collapse
I didn't flash anything.

Angus_xda said:
I didn't flash anything.
Click to expand...
Click to collapse
Had to assume that because I've never seen someone try LTE without doing so.
What you can try is find the stock radio, which might still be the same as you are using, then flash it. Maybe that will reset things back to normal.
Sent with my Nexus® 10 minus 3

Berrydroidcafe said:
Had to assume that because I've never seen someone try LTE without doing so.
What you can try is find the stock radio, which might still be the same as you are using, then flash it. Maybe that will reset things back to normal.
Sent with my Nexus® 10 minus 3
Click to expand...
Click to collapse
No luck.
I tried flashing the stock radio then flashed everything using efrant's instructions. Still no go.
The thing I find strange is when I select Reset to default in the APN settings it sets the APN to Rogers LTE not the default 3G setting.

Delete the Rogers LTE apn and make a new one with this info:
Name: Rogers
APN: rogers-core-appl1.apn
MMSC: http ://mms.gprs.rogers.com
MMS Proxy: 10.128.1.69
MMS Port: 80
MCC: 302
MNC: 720
APN Type: mms
You can also try this one:
APN: internet.com
Username: wapuser1
Password: wap
Go to phone info *#*#4636#*#*, and change network type to WCDMA Preferred. Reboot, and see if that does it.

I've done that several times.
Still won't connect.
The error is; No service. Selected network (ROGERS) unavailable.
When I search networks Telus, Bell and Rogers all show up.
I've tried selecting Rogers and selecting automatically. When I select automatically it selects Rogers but comes back with the same error.

Try reflash Radio

alexcheveau said:
Try reflash Radio
Click to expand...
Click to collapse
That was already suggested.
I have tried wiping everything out and flashing a complete stock 4.4.2.
I've also tried another Rogers SIM.
This is getting ridiculous.
All I did was change a setting from "WCDMA Preferred" to "LTE/GSM auto (PRL)" and back again and that killed a phone?

Angus_xda said:
That was already suggested.
I have tried wiping everything out and flashing a complete stock 4.4.2.
I've also tried another Rogers SIM.
This is getting ridiculous.
All I did was change a setting from "WCDMA Preferred" to "LTE/GSM auto (PRL)" and back again and that killed a phone?
Click to expand...
Click to collapse
I find this very strange. I use the secret menu on two phones but have never heard of this happening. My N4 will only lose signal for a few moments before switching to gsm autoprl, after switching from LTE/GSM.
Sent from backpack

Mystery solved.
I don't know why it happened at exactly the time when I tried LTE but...
The phone has been reported lost or stolen.
I bought it over two weeks ago. I checked the IMEI on the Government web site, that is supposed to protect us from this kind of thing, and it came back clean. I checked again last night and it's blacklisted.
I would say the girl that I bought it from got it on a $0 contract. Sold it then reported it lost or stolen. She's still on the hook for the contract but, so what, she'll never really have to pay it. Either that or it takes 2-3 weeks for a phone to show up on the blacklist.
Either way, the Government initiative to blacklist stolen or lost phones sounded like a good idea but in reality it's not protecting anyone.
So, now I have a small tablet and learned a lesson. Don't buy used cell phones and if you do, don't trust the protectyourdata.ca web site to protect you.
The site boasts;
"Purchasing a pre-owned device?
Check the IMEI number here to ensure the device has not been reported lost or stolen in Canada."
Thanks for trying to help folks. I did learn more about Android through this.

Angus_xda said:
Mystery solved.
I don't know why it happened at exactly the time when I tried LTE but...
The phone has been reported lost or stolen.
I bought it over two weeks ago. I checked the IMEI on the Government web site, that is supposed to protect us from this kind of thing, and it came back clean. I checked again last night and it's blacklisted.
I would say the girl that I bought it from got it on a $0 contract. Sold it then reported it lost or stolen. She's still on the hook for the contract but, so what, she'll never really have to pay it. Either that or it takes 2-3 weeks for a phone to show up on the blacklist.
Either way, the Government initiative to blacklist stolen or lost phones sounded like a good idea but in reality it's not protecting anyone.
So, now I have a small tablet and learned a lesson. Don't buy used cell phones and if you do, don't trust the protectyourdata.ca web site to protect you.
The site boasts;
"Purchasing a pre-owned device?
Check the IMEI number here to ensure the device has not been reported lost or stolen in Canada."
Thanks for trying to help folks. I did learn more about Android through this.
Click to expand...
Click to collapse
That really sucks
But thanks for letting us know.
Sent by carrier pigeon

klvnhng said:
That really sucks
But thanks for letting us know.
Sent by carrier pigeon
Click to expand...
Click to collapse
I've seen about 2 or 3 threads on Android Central with the same symptoms that seemed to never get resolved.
I suspect they had the same problem and either didn't know how to check or were to embarrassed to say.
I was upset but I want others to be able to find this answer.
Through buying and selling different phones working my way up to the Nexus 4 I'm really only $110 out of pocket.
A 16GB Android media player with WiFi must be worth $110.
So, is there a way to eliminate the wireless radio and leave WiFi?
I guess I should start another thread on that.

Angus_xda said:
I've seen about 2 or 3 threads on Android Central with the same symptoms that seemed to never get resolved.
I suspect they had the same problem and either didn't know how to check or were to embarrassed to say.
I was upset but I want others to be able to find this answer.
Through buying and selling different phones working my way up to the Nexus 4 I'm really only $110 out of pocket.
A 16GB Android media player with WiFi must be worth $110.
So, is there a way to eliminate the wireless radio and leave WiFi?
I guess I should start another thread on that.
Click to expand...
Click to collapse
I guess the simplest way would be to just have airplane mode on?
Sent by carrier pigeon

klvnhng said:
I guess the simplest way would be to just have airplane mode on?
Sent by carrier pigeon
Click to expand...
Click to collapse
Airplane mode also turns of the WiFi.
I just pulled the SIM, deleted all APNs, turned off Mobile Data and left WiFi on.
The warning that I had no data connection is gone and I still have the ability to make a 911 call if necessary.
Unlocked, rooted and flashed a USB-OTG enabled kernel. This is great fun...

Angus_xda said:
Airplane mode also turns of the WiFi.
I just pulled the SIM, deleted all APNs, turned off Mobile Data and left WiFi on.
The warning that I had no data connection is gone and I still have the ability to make a 911 call if necessary.
Unlocked, rooted and flashed a USB-OTG enabled kernel. This is great fun...
Click to expand...
Click to collapse
You can turn wifi on with airplane mode on as well. Just do it after airplane mode is already on.
But that works too, I guess
Sent by carrier pigeon

klvnhng said:
You can turn wifi on with airplane mode on as well. Just do it after airplane mode is already on.
But that works too, I guess
Sent by carrier pigeon
Click to expand...
Click to collapse
Yep, just figured that out.

Did you make a police report? You might not be able to recoup anything, but you should still make the seller be responsible for their actions
Sent from my Nexus 4 using xda app-developers app

No Longer Phone Signal After Last Update- RMA or Apple ?

I am totally fed up with this phone now after the last system update to MDM08L I have ZERO cellular coverage in my house (from strong 2-4 bars LTE on MDM08D) and since it is worthless now for use as a phone to me I am deciding whether to get an RMA or simply cancel and get an i phone that I know works since other family members get a strong signal with their i phones on T Mobile? In addition before the update itself my phone had benchmark scores that were far lower than any I have seen posted here on this forum.
What would you do ?

flash your phone to MDM08D

One does not RMA a nexus for software.
You have a nexus, reflash the software. If you're to lazy to do the basics to get it working and instead just spend another $600+ on another phone why the hell did you buy a nexus?
...filthy casual.

Get an iPhone. You're obviously not happy with this device.

I got a nexus so I would get the latest updates no knowing that they would cripple the phone performance.

The update didn't screw up my phone so it's probably just a defective unit you have. As others suggested though, if you like the iPhone you should just go with that. It's also a great phone.

and there's never been an iphone update that cripples their own devices? there are plenty of resources on here to help you. there could be a variety of reasons as to why you're not getting the same signal. there's a version M out - try that one.
have you changed anything on your phone? are you completely stock? were you messing with some settings? there's bits to this story we're not getting.
try restoring your phone to stock.

I just blew my stack. I called Google "Support" or so I thought and after telling him that my Nexus 6P does not get phone service after the MDM08L update yesterday he asked me if I was on Lollipop or Marshmallow ??? I told him the 6P and 5x were the only phones in the world that came with Marshmallow and he continued to ask me if it was Lollipop or Marshmallow.. He would not give me a supervisor that knows what is going on.

are you in the US?

for what its worth, just try to reflash the phone and see if it works. If it doesnt, you can still RMA it at that point.

IMO -
1. remove SIM card then reboot and reinsert and reboot again.
2. wipe cache partition.
3. test phone a few miles from house. maybe a T-Mob issue.
if that fails -
4. hard reset back to factory fresh state then manually sync and reinstall all Apps one by one. make sure all of your data is synced and backed up first.
good luck.

Yes Florida

Without doing the SIM removal just driving down the road, where I had continous LTE connectivity,, it is now 3G 2G E nothing and more nothing..

Dude just download WugFresh Nexus Root Tool Kit (now supports Nexus 6P) and restore to factory with a couple of mouse clicks. Its the easiest and most noob proof way to do it. If that doesn't work then get something else. Good luck.

unless you know what you're doing.... you should probably stay away from Flashing, modding, wiping, puting other ROMs on your phone, etc. Just leave the phone o.s. untouched, stock...
try these T-Mobile APN Settings
Name: T-Mobile GPRS
APN: fast.t-mobile.com
MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
MCC: 310
MNC: 260
APN Type: default,supl,mms
APN Protocol: IPv4/IPv6
APN Roaming Protocol: IPv4
Bearer: Unspecified
MVNO type: None

because changing your APN settings is safer?

I'm all for flashing/wiping/romming/etc/ if people know what they're doing. but for those that don't, then I think they should just keep their phone stock. And as for changing the APN settings, that can be bad if you're just guessing around in there... but if the APN settings have been verified to work for T-Mobile. Which they have been.... then.... well... its simple enough to type them in there. I had no ability to send or receive MMS until i used the above T-Mobile APN settings. maybe it'll help him with his LTE.

I already have been using NRT for my Nexus 5 and 6 and I called T Mobile and there have been no problems in my area. Unofficially Google Support ran the same benchmarks I have on the phone there and there scores were also twice mine. and that is why I am thinking issue is with phone itself. I need to go to a T mobile store today and see if my SIM card works in another phone to rule out SIM card but I do not think that is the issue. If not warranty replace..RMA

Stop complaining about it and and do something. Either RMA this one as your benchmark scores might be showing another issue with it, but if you don't want to do that and since you lost signal go back to the previous build (or go to the M build and see if that changes things).

Galaxy S5/Galaxy Note 3 Sprint help thread

The point of this thread is to have a general place for Sprint folks to help each other out.
I started it because I saw a lot of the same information getting repeated in the S5 thread.
I'll be keeping a list of a few tips and tricks to help get your Sprint S5/Note 3 working as best as it possibly can, and hopefully explain it in a straightforward matter.
If anyone has other suggestions of what should go here, please let me know.
Common problems:
1. LTE isn't working
Possible solutions:
1. Your network provisioning got weird somehow. Flash stock, update your PRL, update your Profile, and then flash Lineage again
2. Your sim card is very old, and we no longer have hacks to support it. Get a new one off eBay, and follow steps in solution 1 for provisioning. See list of working SIM cards below
2. Other network service isn't working
Possible solutions:
1. Your network provisioning got weird somehow. Flash stock, update your PRL, update your Profile, and then flash Lineage again
3. Phone is bouncing between network types
Possible solutions:
1. Try making a standard voice call, to force it to CDMA or EvDO, to help stabilize the connection
4. Voicemail notifications don't show
Disclaimer: Known bug, will not be fixed. This is because sometimes voicemail read signals don't get cleared properly in Sprint's system, so they show forever.
Possible workarounds:
1. Manually call voicemail whenever you get a missed call
2. Use Google Voice and forward calls and texts to a dummy number on your phone instead, or use Sprint's Google Voice integration
General Tips:
1. Don't mess with preferred network settings, I set them specifically to work properly on Sprint
Known working SIM cards:
SIMOLW216R
Known not working SIM cards:
SIMGLW206R

I have a G900P with Virgin Mobile. I wanted to provide some info on the bouncing between GSM-CDMA issue. Today I wiped three times and flashed three builds (LineageOS 10/25, 11/1, and crDroid 10/26 based on LOS 10/25). In all three times, after wiping and flashing roms, I would see the phone bouncing CDMA-GSM when switching between preferred network types. Then I would dirty flash the same ROM (only the rom, nothing else), it seemed like this issue goes away and the phone is VERY stable. I will wipe again to see if I can keep replicating this phenomenon. You guys can try to dirty flash to see if it also fixes the LTE connection issue (nothing to lose). I saw it a few times but I couldn't see a pattern, and now that I have been switching preferred network types several times over the last few hours, I have not seen it anymore. I will keep testing.

The G900P radio issue has been going on forever. its almost as bad as the timezone bug we have had forever.
install rand g900p cyanogenmond/lineage rom.... go through install..... deal with phone trying to escape into wrong carrier or frequency... pray it remains stable for work.... post logcat hoping for fix..... repeat for several years with no avail......

eurohunter said:
I have a G900P with Virgin Mobile. I wanted to provide some info on the bouncing between GSM-CDMA issue. Today I wiped three times and flashed three builds (LineageOS 10/25, 11/1, and crDroid 10/26 based on LOS 10/25). In all three times, after wiping and flashing roms, I would see the phone bouncing CDMA-GSM when switching between preferred network types. Then I would dirty flash the same ROM (only the rom, nothing else), it seemed like this issue goes away and the phone is VERY stable. I will wipe again to see if I can keep replicating this phenomenon. You guys can try to dirty flash to see if it also fixes the LTE connection issue (nothing to lose). I saw it a few times but I couldn't see a pattern, and now that I have been switching preferred network types several times over the last few hours, I have not seen it anymore. I will keep testing.
Click to expand...
Click to collapse
I'll add the suggestion to not mess with preferred network types, I set the default to what is ideal for Sprint. Did you dirty flash the ROMs over themselves? or over an older version?
TomNeverwinter said:
The G900P radio issue has been going on forever. its almost as bad as the timezone bug we have had forever.
install rand g900p cyanogenmond/lineage rom.... go through install..... deal with phone trying to escape into wrong carrier or frequency... pray it remains stable for work.... post logcat hoping for fix..... repeat for several years with no avail......
Click to expand...
Click to collapse
I aim to improve that, at least a little bit. The stability has improved, from the feedback I've been getting. The timezone bug was fixed a long time ago as well, in May iirc (and it wasn't just Sprint, T-Mobile US and AT&T had it too)

The network for sprint devices using; lineage-14.1-20171108-nightly-kltedv-signed is definitely better so far.

Sounds like you guys on sprint have some issues still ... I am running my g900p on att .... Works great i dont think i get full 4glte but i still average2-3 megs a second so its definitely not bad ... Fair trade off i guess.

pinheaD420 said:
Sounds like you guys on sprint have some issues still ... I am running my g900p on att .... Works great i dont think i get full 4glte but i still average2-3 megs a second so its definitely not bad ... Fair trade off i guess.
Click to expand...
Click to collapse
I would imagine the LTE bands AT&T uses don't line up with Sprint's. I have similar issues on my G900F on T-Mobile, I frequently see H+/3G/E when I should have LTE.
As for Sprint issues, yeah, but it's a lot more manageable now. Most of the weird bugs/quirks are now just fixed by getting provisioning on stock, or a new sim card.
I always heard about what a PITA sprint was, and imagine it worked like crap then, but it's not too bad now. I still prefer T-Mobile, for various minor reasons,
but my hltespr on Tello (Sprint MVNO) makes a perfectly usable backup phone if anything goes wrong with my T-Mobile sim, and it wouldn't
really bother me to use it. That's pretty much my main goal: Make Sprint as usable as possible, so the user doesn't need to notice they're on Sprint.

javelinanddart said:
I would imagine the LTE bands AT&T uses don't line up with Sprint's. I have similar issues on my G900F on T-Mobile, I frequently see H+/3G/E when I should have LTE.
As for Sprint issues, yeah, but it's a lot more manageable now. Most of the weird bugs/quirks are now just fixed by getting provisioning on stock, or a new sim card.
I always heard about what a PITA sprint was, and imagine it worked like crap then, but it's not too bad now. I still prefer T-Mobile, for various minor reasons,
but my hltespr on Tello (Sprint MVNO) makes a perfectly usable backup phone if anything goes wrong with my T-Mobile sim, and it wouldn't
really bother me to use it. That's pretty much my main goal: Make Sprint as usable as possible, so the user doesn't need to notice they're on Sprint.
Click to expand...
Click to collapse
Totally appreciate the efforts and this thread.
For me, you called it, by the way. Old-ass SIM card.

meatfest1974 said:
Totally appreciate the efforts and this thread.
For me, you called it, by the way. Old-ass SIM card.
Click to expand...
Click to collapse
Just to update, everything worked out well!
Upon replacing the old SIM with a new one, I still couldn't get past 3G. I flashed to stock CQD1 in Odin, updated the PRL and profile, ##72786# to reset, and still nothing.
After a few Google searches, a few forums suggested to call into Virgin Mobile to update the SIM's ICCID number, because this is the reason I couldn't get LTE; the ICCID didn't match the SIM card they had on file. Once done and after a final reboot back into stock, LTE success!
Flashed TWRP in Odin and restored a recent lineageOS backup, and LTE success!
Again, this board was very helpful, thanks!

Just ordered a new SIM card from Sprint. The old one showed as incompatible according to OP. I could only get 3G if I changed to CDMA/EVDO.. Hopefully the new one will allow me to run LOS 14.1 with access to LTE on TING. Thanks for the info.

@javelinanddart Hi, would you mind taking a look at this radio log from 15.1? I can't get LTE working under any circumstances. I have the latest baseband for G900P and a good SIM card, and everything was working in 14.1. Log shows switching from "CDMA/EvDo" to "CDMA/EvDo + LTE" then setting the APN to FreedomPop LTE.

javelinanddart said:
General Tips:
1. Don't mess with preferred network settings, I set them specifically to work properly on Sprint
Click to expand...
Click to collapse
hmmm
where are your files ?
don't say
https://github.com/javelinanddart/
because i just spent 15 min looking at everything there and could find nothing specific to G900P

a1yet said:
G900P
Click to expand...
Click to collapse
I imagine its buried deep, around about here:- https://review.lineageos.org/#/q/status:merged+project:LineageOS/android_device_samsung_klte-common+branch:cm-14.1+topic:klte-oss-ril

fitittome said:
I imagine its buried deep, around about here
Click to expand...
Click to collapse
thank you very much
Ohhh good Joke LOL .. had me going there, I really thought you were trying to help.. till I spent another 5-10 min looking around at gibberish
thanks a lot
PS: i'm not mad .. i can appreciate a good joke
i think i'll wait tile the OP tells me where i can download his ROM
OR
find one in the S5 sprint thread on this site

a1yet said:
i think i'll wait tile the OP tells me where i can download his ROM
Click to expand...
Click to collapse
It's the official LineageOS kltedv.

fitittome said:
It's the official
Click to expand...
Click to collapse
then i thank you again
i see the files now that i failed to find on my own
thank you

Couchy said:
@javelinanddart Hi, would you mind taking a look at this radio log from 15.1? I can't get LTE working under any circumstances. I have the latest baseband for G900P and a good SIM card, and everything was working in 14.1. Log shows switching from "CDMA/EvDo" to "CDMA/EvDo + LTE" then setting the APN to FreedomPop LTE.
Click to expand...
Click to collapse
Well, If you come back to this, let me know if you need more logs. I'm going back to 14.1 for now, as the signal is really bad (Keeps switching between 1X and 3G).
Edit: 14.1 is now borked as well... Some relatively recent change must have killed it.

And here's a log from when 3G/EvDo craps out...

Sorry for the multi-post, but I just found my problem: The default APN settings for FreedomPop, the MVNO I use, are somehow wrong. So I deleted that APN and redid it with the following settings and was able to get LTE.
Name: FreedomPop LTE
APN: n.f6.ispsn
MMSC: http://mms.sprintpcs.com
MMS proxy: 68.28.31.7
MMS port: 80
MCC: 310
MNC: 120
APN type: default,mms,supl,hipri,fota,ims,cbs
APN (roaming) protocol: IPv4/IPv6
Bearer: Unspecified
MVNO type: None

Couchy said:
Sorry for the multi-post, but I just found my problem: The default APN settings for FreedomPop, the MVNO I use, are somehow wrong. So I deleted that APN and redid it with the following settings and was able to get LTE.
Name: FreedomPop LTE
APN: n.f6.ispsn
MMSC: http://mms.sprintpcs.com
MMS proxy: 68.28.31.7
MMS port: 80
MCC: 310
MNC: 120
APN type: default,mms,supl,hipri,fota,ims,cbs
APN (roaming) protocol: IPv4/IPv6
Bearer: Unspecified
MVNO type: None
Click to expand...
Click to collapse
Sorry for the delay, I've been busy working on another device. I had the same issue (even though it worked fine before) on my hltespr. After a wipe, my LTE started working again too, which was really weird. I don't really want to investigate this, since it's working now.