Hey Folks,
I got anxious and thought flashing a new baseband would give me the edge in my area. Well, the original baseband I had on my Droid was the c_1.07.00R....
I tried flashing the following:
C_1.3E.01P
C_1.3E.01E
C_01.41.00R
C_01.43.01P
From http://download.peteralfonso.com/sholes
Now, I don't get ANY mobile data connections. Looks like the baseband has stopped working. WiFi is fine. I have Verizon service, and live in a slightly remote area that was once popular with Alltel. I'm guessing the radios in my area haven't been updated with LTE or the new technology...
Now, to my question. Does anyone have a link or file for the C_1.07.00R baseband?? Or do I flash an original ROM to attempt a baseband switch??
So far (in my reading), it seems ROMs don't affect Basebands. Is there an .SBF that would fix my issues?? I need to read more on .SBFs. BTW, I feel comfortable using ADB.
\_/\_/ Cheers for any info or help!!
Well... no response from the forum! I found that if you reload an original image through a .SBF file, you can restore the A854 baseband to 1.07.00R.
Unfortunately, this didn't resolve my mobile data network connection issue. Keep in mind there are several Droids out there... Verizon, Alltel, European, Asian, Australian... A853, A854, A855 ffffffuuuuuuuuu.....
Verizon is sending me a new phone; Droid2 replacement. Hopefully, I can keep this one going. READ!!! READ!!!! READ!!!! Learn everything before doing anything.
Peter Alfonso's basebands are specifically Verizon's Basebands for the Motorola Droid (A855). It is not known as the Droid on any other carrier.
Also, after flashing a new Baseband, it clears any PRL information, so you must dial *228 to reconfigure the PRL for the phone. You will then get all voice/data services after that.
I have the same issue on my VERIZON Motorola Droid A855
I have the same issue I even Reinstalled the Default image
VZW_A855_FRG22D_QSC6085BP_C_01.43.01P_SW_UPDATE_01 and even went back tro the default baseband then went out and did a*228 and option 1 and still no mobile data connection when I try to do a *#*#4636#*#* and go into Phone Information and tried several of the Network types
1) CDMA Auto(PRL)
2) GSM/CDMA Auto(PRL)
3) CDMA Only
4) EvDO Only
Then after each on of those I would go down to menu and "select radio band" I tried
USA and Auto and got this error message Set [Automatic] unsucessfull and Set [USA] unsucessfull I'm starting to think this is a hardware issue possibly from overclocking it I had it set to min 250Mhz and max 800Mhz or it's some setting somewhere deep in the Android OS that needs to be reset I'm still troubleshooting but everything else on my droid is working great.
This shouldn't be related to overclocking, I think. It's something about CPU, not radio.
So, I'm grabbing up a D4 and I'd like to play with it's guts a little bit. Anyone aware of being able to modify items with cdma workshop/RadioComm? I had a hell of'a time gettin my D3 to be playable. Virtual Serial Port alone only allowed me to read, not write. Any tips or tricks?
Thanx
~SU!C!D3~
The D4 and D3 are very different despite sharing the same QualComm MDM6600 baseband chipset due to the fact that the D4 is 4G and has an additional LTE radio chip.
The NV is controlled and written to by the SIM, so editing the NV is useless unless you disable the SIM based authentication, which breaks LTE authentication and is what is required for use on a CDMA network other than VZW.
Perhaps it would be best if you gave some more information about what you are trying to do in the NV and I can better help you.
Generally, the same tools and techniques used for accessing the D3 work the same way on D4. Qualcomm serviceware like QPST and QXDM and CDMA Workshop require the Virtual Serial Port COM assignment, but RadioComm does not.
cellzealot said:
The D4 and D3 are very different despite sharing the same QualComm MDM6600 baseband chipset due to the fact that the D4 is 4G and has an additional LTE radio chip.
The NV is controlled and written to by the SIM, so editing the NV is useless unless you disable the SIM based authentication, which breaks LTE authentication and is what is required for use on a CDMA network other than VZW.
Perhaps it would be best if you gave some more information about what you are trying to do in the NV and I can better help you.
Generally, the same tools and techniques used for accessing the D3 work the same way on D4. Qualcomm serviceware like QPST and QXDM and CDMA Workshop require the Virtual Serial Port COM assignment, but RadioComm does not.
Click to expand...
Click to collapse
A few nights ago i was messing around with my D4 and cdma workshop.
In order to get it present a com port to windows i booted to the boot loader then chose bp tools only. I was then able to connect to the correct port using cdma workshop and set the phone to NOT use the RUIM and then i was able to program the phone that way. I was able to also push a non VZW prl to the phone and connect to sprint and cricket. However the phone was treated as an unactivated phone even though i tried flashing the correct CDMA info. My guess is VZW doesnt store the meid but only the imei of the phone.
This method *could* be used to flash the phone to other carriers However *228 was blocked by the phone's rom so you would not be able to use OTA programming :/
cellzealot said:
The D4 and D3 are very different despite sharing the same QualComm MDM6600 baseband chipset due to the fact that the D4 is 4G and has an additional LTE radio chip.
The NV is controlled and written to by the SIM, so editing the NV is useless unless you disable the SIM based authentication, which breaks LTE authentication and is what is required for use on a CDMA network other than VZW.
Perhaps it would be best if you gave some more information about what you are trying to do in the NV and I can better help you.
Generally, the same tools and techniques used for accessing the D3 work the same way on D4. Qualcomm serviceware like QPST and QXDM and CDMA Workshop require the Virtual Serial Port COM assignment, but RadioComm does not.
Click to expand...
Click to collapse
I managed to get the green light in RadioComm tonite, I get terrible 3g speed at home (about .25 mbit/s) and am interested in any kind of speed hack. Is there a way to disable the SIM authentication, and still use the Droid 4 on Verizon? I don't have 4g in my city yet, so I'm not worried about losing that.
I found a supposed throttle removal trick for the Droid 2 using RadioComm, but like cellzealot said, once you reboot, the settings return to stock
Thanks cell zealot and anybody else who may be reading this
See my post above
Yeah you can disable sim auth, however the OS actively blocks *228 and any form of it.
BUT you can manually program your phone and as far as getting vzw to activate it using it MEID good luck
Also i highly doubt disabling lte auth will speed up your 3g as awhile ago i went camping and took my tablet and 3g was fast out in the middle of no where in Texas
I've tried doing everything in this thread: http://forum.xda-developers.com/showthread.php?t=1591949
and I'm still not able to get data to work over GSM. I have data enabled in ##PROGRAM and all data options are enabled in settings and build.prop has verizon network set to 0.
Any ideas?
Droid 3 GSM Australia
Hi,
I'm in a similar situation to you. I assume you are able to make and receive calls?
I'm currently using a Droid 3 (from Verizon, XT862) in Australia.
I'm assuming it is already GSM unlocked, as I just put my SIM card into it and was able to make and receive phone calls and SMSs.
However, I am unable to get any sort of mobile data connection (besides WIFI).
I have tried tweaking the mobile network settings to use GSM/UMTS instead of Global network mode, but when I set up the APN...nothing happens.
I haven't tried I anything from that link from the other thread.
How do you go about changing the build. prop and adding
ro.ril.hsxpa=3
ro.ril.gprsclass=12
ro.ril.hep=1
ro.ril.enable.dtm=1
?
Thanks.
Yes I can make and receive calls fine.
also - in *#*#4636#*#*
Ping test: All failed Signal Strength: -51 dBm 31 asu GSM Service: In service GPRS service: Connecting Network Type: HSPA Radio Resets: 0 Data Attempts/Successes: 0
(If default APN)
GSM Disconnects: Data State: DcInactiveState disconnected with last try at 7:59AM fail because No Error
(If using selected APN)
GSM Disconnects: Data State: DcActivatingState is connecting to [ApnSettingV2] hk, 53, 45400, hkcsl,,,,,,-1,true,-1,0,0,*,IP,IP
Located in Hong Kong
Menu-Settings-Wireless&networks-mobile networks-access point names. Is points?
dinan said:
I've tried doing everything in this thread: http://forum.xda-developers.com/showthread.php?t=1591949
and I'm still not able to get data to work over GSM. I have data enabled in ##PROGRAM and all data options are enabled in settings and build.prop has verizon network set to 0.
Any ideas?
Click to expand...
Click to collapse
Gsm data is controlled via the apns under mobile networks. Ensure you are in gsm/umts mode and verify the correct apn is selected for your carrier. If there are no apns, hit menu > add apn and supply proper settings, they are either preloaded on the sim or listed on the carrier site. A quick google will also provide the correct info.
Also under data management, ensure data is enabled over mobile network. ##program ONLY changes cdma programming.
I've checked those and.the proper APNs are there. Also in UMTS mode.
Skreelink said:
Gsm data is controlled via the apns under mobile networks. Ensure you are in gsm/umts mode and verify the correct apn is selected for your carrier. If there are no apns, hit menu > add apn and supply proper settings, they are either preloaded on the sim or listed on the carrier site. A quick google will also provide the correct info.
Also under data management, ensure data is enabled over mobile network. ##program ONLY changes cdma programming.
Click to expand...
Click to collapse
Droid 3 GSM Australia
dinan said:
I've checked those and.the proper APNs are there. Also in UMTS mode.
Click to expand...
Click to collapse
How did you change the build.prop setting?
When I use a selected APN I get the same as you:
GSM Disconnects: Data State: DcInactiveState disconnected with last try at 9:59AM fail because No Error
Do you think it could be a problem with the radio?
If we flashed the XT883 radio, would that solve anything? or is it just an APN problem?
---
Edited the build.prop file. Not working either.
Droid 3 GSM Australia
dinan said:
I've checked those and.the proper APNs are there. Also in UMTS mode.
Click to expand...
Click to collapse
Have you tried flashing the XT883 radio.img onto it?
Apparently that one works sometimes
http://forum.xda-developers.com/showthread.php?t=1406812&page=21
There should be absolutely no problem with GSM/UMTS data connection and MMS with unlocked xt862, just enter apn manually and go.
My personal butthurt is EV-DO with non-Verizon CDMA networks as it's really the issue even if you try to hack as the phones with the same Qualcomm chipsets like Droid 2 Global.
I've became real expert in flashing CDMA settings and real guru in tweaking props and rils. But it doesn't help.
I say no Moto and no Android anymore. I'm going to buy WP8 handset as soon as it become available with CDMA. F**k Moto and Google, long live Microsoft which never disappointed me with WM handsets.
Sent from my DROID3 using Tapatalk 2
Theri0n said:
There should be absolutely no problem with GSM/UMTS data connection and MMS with unlocked xt862, just enter apn manually and go.
My personal butthurt is EV-DO with non-Verizon CDMA networks as it's really the issue even if you try to hack as the phones with the same Qualcomm chipsets like Droid 2 Global.
I've became real expert in flashing CDMA settings and real guru in tweaking props and rils. But it doesn't help.
I say no Moto and no Android anymore. I'm going to buy WP8 handset as soon as it become available with CDMA. F**k Moto and Google, long live Microsoft which never disappointed me with WM handsets.
Sent from my DROID3 using Tapatalk 2
Click to expand...
Click to collapse
there should not but there is
i also have this problem
the phone is new (or refurb i dont know it was a warranty replacement)
i supplied APN (correctly of course)
3g comes for a second and the it goes away
in my case its notrooted and STOCK
i would SBF the phone but there is no SBF for the latest version i
---------- Post added at 11:31 AM ---------- Previous post was at 11:29 AM ----------
toggle between CDMA and GSM
and in GSM between 2g and 3g
im going to try that and that have worked for me in the past (but with old retired mine & not this new one)
I have the same problem after reflashing phone with STOCK firmware. Motorola and Android is bull****, i will never buy them anymore.
contracara said:
Hi,
I'm in a similar situation to you. I assume you are able to make and receive calls?
I'm currently using a Droid 3 (from Verizon, XT862) in Australia.
I'm assuming it is already GSM unlocked, as I just put my SIM card into it and was able to make and receive phone calls and SMSs.
However, I am unable to get any sort of mobile data connection (besides WIFI).
I have tried tweaking the mobile network settings to use GSM/UMTS instead of Global network mode, but when I set up the APN...nothing happens.
I haven't tried I anything from that link from the other thread.
How do you go about changing the build. prop and adding
ro.ril.hsxpa=3
ro.ril.gprsclass=12
ro.ril.hep=1
ro.ril.enable.dtm=1
?
Thanks.
Click to expand...
Click to collapse
have you or any of you solved this problem with the data conection in gsm networks for the droid 3?
I'm getting a chance to do some extended testing with data roaming. I found a couple of other data roaming problem threads, but this issue is different than the problems discussed in those.
The HTC One is rooted, unlocked, S-OFF, stock 4.4.2 (4.06.651.4), with PRL 56018 installed from CDMA Workshop. I've installed a couple of the patches floating around for WiFi tether. I also have an HTC EVO 4G LTE with the 56018 PRL installed via QPST.
Right now, I am in an area with extremely weak Sprint signal and decent Verizon signal. The EVO 4G LTE finds Verizon 3G EVDO and will voice/data roam just fine. SignalCheck verifies that the provider is Verizon for 1x and EVDO, with signal between -90 to -100 dB. However, the One will not data roam. SignalCheck indicates that the One finds Verizon for voice (1X), but does not connect for data roaming. If I watch SignalCheck long enough, I can see that the One will find the Verizon EVDO for a few seconds every five minutes or so, but it won't "hold" the EVDO signal. On Sprint, the ONE will find both 3G and 4G.
I've played around with various mobile data settings, but nothing seems to help. In fact, the One will pop up the messages that data roaming is in effect, but there is no data connection. Since the EVO 4G LTE will EVDO roam, it seems that the One should EVDO roam as well.
Any ideas or suggestions on what to look at? On Sprint the 3G is usually ePHRD, not EVDO, perhaps there is some issue with EVDO on the ONE? I thinking about getting Roam Control to see if that would make any difference. I haven't taken the 4.06.651.9 update either.
Thanks!
I had a chance to do some further data roaming testing with the One and Evo 4G LTE side by side.
Roam Control seems to work fine on the One, except that the color of the blue button for selecting the roaming mode is hard to distinquish.
Unfortunately, it seems that the One will not lock on to a Verizon EVDO signal. I found several areas with strong EVDO signal. The EVO connected just fine, but the One wouldn't. The One does fine with Sprint's eHRPD signal, and will lock on to the Verizon 1xRTT for voice.
I don't know how to do further debugging. I guess it could be a radio problem, an issue with the 56018 PRL and the One, or some other issue.
Any suggestions are welcome!
jbhtexas said:
I had a chance to do some further data roaming testing with the One and Evo 4G LTE side by side.
Roam Control seems to work fine on the One, except that the color of the blue button for selecting the roaming mode is hard to distinquish.
Unfortunately, it seems that the One will not lock on to a Verizon EVDO signal. I found several areas with strong EVDO signal. The EVO connected just fine, but the One wouldn't. The One does fine with Sprint's eHRPD signal, and will lock on to the Verizon 1xRTT for voice.
I don't know how to do further debugging. I guess it could be a radio problem, an issue with the 56018 PRL and the One, or some other issue.
Any suggestions are welcome!
Click to expand...
Click to collapse
Providers dont like roaming, the newer the phone is the less likely it will be to roam, the first two M7 radios would not allow any roaming at all on my phone, the latest 2 do allow roaming but I need to force "roam only" with roam control, I am on the latest radio running GPE rom and use roam control to force roaming whenever verizon has a better signal and it works good. I am using PRL 56015 flashed via CDMA workshop.
---------- Post added at 09:10 PM ---------- Previous post was at 09:08 PM ----------
jbhtexas said:
The HTC One is rooted, unlocked, S-OFF, stock 4.4.2 (4.06.651.4), with PRL 56018 installed from CDMA Workshop. I've installed a couple of the patches floating around for WiFi tether. I also have an HTC EVO 4G LTE with the 56018 PRL installed via QPST.
Click to expand...
Click to collapse
Where did you get that PRL?
mcerk02 said:
Where did you get that PRL?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2573604
Unfortunately, my One will not data roam, even with Roam Control. It sees the EVDO for a few seconds, but won't hold it.
Would there be any tweaks that could be made to the radio from CDMA Workshop that might affect the data roaming behavior?
jbhtexas said:
http://forum.xda-developers.com/showthread.php?t=2573604
Unfortunately, my One will not data roam, even with Roam Control. It sees the EVDO for a few seconds, but won't hold it.
Would there be any tweaks that could be made to the radio from CDMA Workshop that might affect the data roaming behavior?
Click to expand...
Click to collapse
I dont think you can tweak a radio, all I could suggest is make sure you are on the latest radio from here
http://forum.xda-developers.com/showthread.php?t=2406330
and try the 56015 PRL from here
http://forum.xda-developers.com/showthread.php?t=1880781
I flashed the PRL with cdma workshop and use roam control when needed and it roams on 3G no problem. let me know if any of that helps.
mcerk02 said:
I dont think you can tweak a radio, all I could suggest is make sure you are on the latest radio from here
http://forum.xda-developers.com/showthread.php?t=2406330
and try the 56015 PRL from here
http://forum.xda-developers.com/showthread.php?t=1880781
I flashed the PRL with cdma workshop and use roam control when needed and it roams on 3G no problem. let me know if any of that helps.
Click to expand...
Click to collapse
I loaded PRL 56015 into the One with CDMA Workshop, but the problem remains...when roaming, the One will see the EVDO briefly but not hold it, according to SignalCheck.
I did a comparison between the various settings in the One and the EVO 4G LTE (where roaming works fine) using CDMA WS. The are significant differences, particularly on the CDMA, CDMA-2, and EVDO pages. For example, on the EVDO page, the EVO has a username ([email protected]) for HDR_User_long, but the One doesn't have one. The EVDO revision is also different. I don't know enough to fool with these settings.
Actually, the One is missing values for many settings that the EVO has. I'm beginning to wonder if somehow the One didn't get provisioned properly.
Thanks!
jbhtexas said:
I loaded PRL 56015 into the One with CDMA Workshop, but the problem remains...when roaming, the One will see the EVDO briefly but not hold it, according to SignalCheck.
I did a comparison between the various settings in the One and the EVO 4G LTE (where roaming works fine) using CDMA WS. The are significant differences, particularly on the CDMA, CDMA-2, and EVDO pages. For example, on the EVDO page, the EVO has a username ([email protected]) for HDR_User_long, but the One doesn't have one. The EVDO revision is also different. I don't know enough to fool with these settings.
Actually, the One is missing values for many settings that the EVO has. I'm beginning to wonder if somehow the One didn't get provisioned properly.
Thanks!
Click to expand...
Click to collapse
If you change any of them settings in CDMA workshop, save them first, if you screw something up you can reload the saved settings, I screwed with CDMA workshop alot in the past and you can do alot with it. Before screwing with them settings, did you try resetting or updating your data profile?..maybe something got messed up in the tweaking and flashing your doing. I flash all kinds of different stuff on my phone, every once in a while I flash a sense rom and update or reset my data profile just in case...
mcerk02 said:
If you change any of them settings in CDMA workshop, save them first, if you screw something up you can reload the saved settings, I screwed with CDMA workshop alot in the past and you can do alot with it. Before screwing with them settings, did you try resetting or updating your data profile?..maybe something got messed up in the tweaking and flashing your doing. I flash all kinds of different stuff on my phone, every once in a while I flash a sense rom and update or reset my data profile just in case...
Click to expand...
Click to collapse
I did "update profile" from Settings->System updates, but nothing changed. What you mean by resetting the data profile?
Thanks!
jbhtexas said:
I did "update profile" from Settings->System updates, but nothing changed. What you mean by resetting the data profile?
Thanks!
Click to expand...
Click to collapse
I am not on a sense rom right now and I forget the codes, try entering ##3282# or *#*#3282#*#* in your dialer, it should bring up a data menu, there should be an option to do a reset, it will basically erase your data profile and reboot, when it reboots it will do an activation and reset everything....or ##786# will completely reset everything, that has saved me once or twice but that also factory rests your phone. these will only work on a sense rom and I reccoment a backup before doing anything, just in case... if that dont work do a google search for epst codes, and find the one that resets your data profile.
mcerk02 said:
I am not on a sense rom right now and I forget the codes, try entering ##3282# or *#*#3282#*#* in your dialer, it should bring up a data menu, there should be an option to do a reset, it will basically erase your data profile and reboot, when it reboots it will do an activation and reset everything....or ##786# will completely reset everything, that has saved me once or twice but that also factory rests your phone. these will only work on a sense rom and I reccoment a backup before doing anything, just in case... if that dont work do a google search for epst codes, and find the one that resets your data profile.
Click to expand...
Click to collapse
I did a profile reset with ##3282#, and the behavior has changed somewhat. The One is now holding the EVDO signal according to SignalCheck. However, if I try to open a web page, a message box pops up indicating that data roaming needs to be enabled. If I tap on "data roaming" in the message box, it takes me to the mobile data settings. I have been over and over those settings, and tried different combinations of things, but I can't seem to come up with the magic setting that will make the phone think that data roaming is enabled. I am forcing roaming with Roam Control.
Is there some "hidden" setting to enable data roaming? There is a "CDMA Roaming" setting that has choices of Home/Automatic, and I have it set to Automatic. I have identical settings to the Evo in the mobile data settings, but I can't make it work on the One.
jbhtexas said:
I did a profile reset with ##3282#, and the behavior has changed somewhat. The One is now holding the EVDO signal according to SignalCheck. However, if I try to open a web page, a message box pops up indicating that data roaming needs to be enabled. If I tap on "data roaming" in the message box, it takes me to the mobile data settings. I have been over and over those settings, and tried different combinations of things, but I can't seem to come up with the magic setting that will make the phone think that data roaming is enabled. I am forcing roaming with Roam Control.
Is there some "hidden" setting to enable data roaming? There is a "CDMA Roaming" setting that has choices of Home/Automatic, and I have it set to Automatic. I have identical settings to the Evo in the mobile data settings, but I can't make it work on the One.
Click to expand...
Click to collapse
What rom are you using?, I think the stock roms from Sprint no longer have the "allow data roaming" option, Sprint tries to avoid us using roaming as much as possible, so if you are on stock rom or something close, you probly don't have this option, try flashing a modified rom that may have this option, or if you are familiar with using the exposed framework, I think there is a module you can use to enable the data roaming. I personally use Gruesomewolf's GPE rom and it has the option built in if you want to try it.
mcerk02 said:
What rom are you using?, I think the stock roms from Sprint no longer have the "allow data roaming" option, Sprint tries to avoid us using roaming as much as possible, so if you are on stock rom or something close, you probly don't have this option, try flashing a modified rom that may have this option, or if you are familiar with using the exposed framework, I think there is a module you can use to enable the data roaming. I personally use Gruesomewolf's GPE rom and it has the option built in if you want to try it.
Click to expand...
Click to collapse
I'm on the stock 4.06.651.4 ROM (rooted and S-OFF). This is my wife's phone, and I'd like to keep it stock and simple, as she's not a techie. However, she also travels where data roaming is required, so I might have to try another ROM.
Interestingly, My EVO 4G LTE doesn't have an "allow data roaming" setting under mobile network settings that I can find, but it roams just fine. In fact, the mobile data settings on the EVO and One are almost identical, except that the One has some additional GMS options. I wonder if there is some setting in a file like build.prop that affects data roaming.
I installed a couple of native hotspot hacks on the One. In looking through the zip files for those hacks to see what they actually did (which was quite minimal), some network-related things were changed in /system/customize/ACC/default.xml relative to the file in the original ROM, and a shell script was added that executes several iptables commands. I may try to manually undo those hacks to see if it has any effect. At this point, we need the data roaming more than the hotspot.
jbhtexas said:
I'm on the stock 4.06.651.4 ROM (rooted and S-OFF). This is my wife's phone, and I'd like to keep it stock and simple, as she's not a techie. However, she also travels where data roaming is required, so I might have to try another ROM.
Interestingly, My EVO 4G LTE doesn't have an "allow data roaming" setting under mobile network settings that I can find, but it roams just fine. In fact, the mobile data settings on the EVO and One are almost identical, except that the One has some additional GMS options. I wonder if there is some setting in a file like build.prop that affects data roaming.
I installed a couple of native hotspot hacks on the One. In looking through the zip files for those hacks to see what they actually did (which was quite minimal), some network-related things were changed in /system/customize/ACC/default.xml relative to the file in the original ROM, and a shell script was added that executes several iptables commands. I may try to manually undo those hacks to see if it has any effect. At this point, we need the data roaming more than the hotspot.
Click to expand...
Click to collapse
Alot of your issues can be solved with a custom rom, you wouldnt need to install the hotspot hacks either, most have native hotspot built in.
mcerk02 said:
Alot of your issues can be solved with a custom rom, you wouldnt need to install the hotspot hacks either, most have native hotspot built in.
Click to expand...
Click to collapse
Getting a chance to work on this issue again...it seems that the EV-DO problem with my HTC One is not limited to roaming, but also occurs on the Sprint network.
Again, doing side-by-side comparison between the HTC One and my EVO 4G LTE on Sprint network:
1) Set network mode to LTE/CDMA. According to SignalCheck, both phones will find Sprint LTE and display the 4G indicator in the status bar, and both will occasionally drop back to Sprint eHRPD for periods of 5-10 minutes (displaying the 3G icon in the status bar). Network is available to apps in both the LTE and eHRPD cases. No problems here.
2) Now...change network mode to CDMA Only. According to SignalCheck, the EVO will find Sprint EV-DO, the status indicator will change to 3G, and network is available to apps. However, on the One, SignalCheck indicates that EV-DO is found (but doesn't indicate which carrier), there is no 3G (or 4G) icon in the status bar, and apps report that there is no network. The EV-DO signal is strong for both phones.
So, it seems that on the One, LTE and eHRPD are working, but there is some kind of problem with legacy EV-DO, where the phone can find a signal, but can't complete the process of registering on the network, whether Sprint or roaming.
Do eHRPD and EV-DO use the same radio? Trying to rule out a hardware issue. I am thinking of flashing a different radio firmware. Perhaps something got corrupted when I did the OTA update.
Not that Sprint wouldn't do this, but it would seem odd to put something in the stock ROM that would prevent EV-DO, even on Sprint's network. Is there somebody out there on the stock ROM who could confirm that they can get network in CDMA only mode?
Thanks!
So, I finally got this problem solved! I had to do a ##786# "hard reset". After the reset, EV-DO works fine.
The reset process was interesting. I did backups, expecting the phone to be wiped. I entered ##786# and the phone said it was preparing, and then rebooted. But it rebooted into recovery (I have TWRP). Not being exactly sure what to do, I rebooted into the system. The phone booted up, and the provisioning process started and completed. It then fetched the PRL. But nothing was wiped out. Apps, data, and sdcard were all intact. Oh, well, no complaints, and everything seems to be working fine. I used CDMA workshop to put PRL 56018 back, and roaming seems to be working.
jbhtexas said:
So, I finally got this problem solved! I had to do a ##786# "hard reset". After the reset, EV-DO works fine.
The reset process was interesting. I did backups, expecting the phone to be wiped. I entered ##786# and the phone said it was preparing, and then rebooted. But it rebooted into recovery (I have TWRP). Not being exactly sure what to do, I rebooted into the system. The phone booted up, and the provisioning process started and completed. It then fetched the PRL. But nothing was wiped out. Apps, data, and sdcard were all intact. Oh, well, no complaints, and everything seems to be working fine. I used CDMA workshop to put PRL 56018 back, and roaming seems to be working.
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I know you got your issue fixed and its been a while but just a heads up in case you run into problems again, I got a replacement phone from sprint and had the exact same issues youe were having, It is a problem with the data profile not being configured correctly, in my case, the new phone did not have my user name correct, worked fine on sprint network for some reason, but I couldnt get 3g in roaming areas, using epst I put my correct user name in and everything worked perfectly...dont know what rom your running now either but NUISENSE is awesome with this phone and it has "roam only" opttion built in, no need for roam control app....
Thanks for the tip!
I'm using the stock ROM. Since my last post, I have been able to test romaing, as we've traveled off the Sprint network, and roaming 3G worked fine. The only issue was that in a one spot we were roaming on a regional carrier, and the phone had locked on a quite distant tower according to SignalCheck, instead of Verizion which had closer towers. This resulted in some loss of 3G just as we were trying to get radar data for a storm we were traveling through (bad timing). But that is most likely a PRL issue. In looking though some PRL analyis an earlier version of 56xxx on another site, Sprint apparently doesn't have roaming agreement in this particular area with Verizon. I wish I new more about PRL editing so I could fix that...