I am wondering if there is a prl to flash for the evo 3d, sprint network is terrible arround here, I am currently using the verizon prl, although better, not as good as US Cellular in my area, expecially at work.
Thanks in advance
GGerk said:
I am wondering if there is a prl to flash for the evo 3d, sprint network is terrible arround here, I am currently using the verizon prl, although better, not as good as US Cellular in my area, expecially at work.
Thanks in advance
Click to expand...
Click to collapse
No I don't think anyone has made one of those. Is us cellular a cdma network? Have you tried the 1337, or 3137(can't remember if this is correct but it does start with a3). Or maybe even that sprint business PRL 1115 I think it is.
The Sprint business PRL (11115) only allows for roaming on Verizon I believe. I don't believe they have any roaming agreement with US Cellular, unfortunately.
I tried the 115000 and it didn't work as well as the 00001
SolsticeZero said:
The Sprint business PRL (11115) only allows for roaming on Verizon I believe. I don't believe they have any roaming agreement with US Cellular, unfortunately.
Click to expand...
Click to collapse
I checked into it, and one of sprints reciprocal roaming agreements is with us cellular. However the agreement is only for voice and 1xrtt, but no 3G. We could find out all the roaming agreements if someone put their sprint PRL into one of the PRL decoders floating around out there.
GGerk said:
I tried the 115000 and it didn't work as well as the 00001
Click to expand...
Click to collapse
Yeah, that would make sense. 01 is a custom PRL, and its targets are to force roaming on to Verizon towers. 15 is a PRL encoded by sprint for business customers. Its main target is sprint towers, but directs the antenna to Verizon towers, and all the other company's that sprint has roaming agreements for. It only does the roaming though if it can't find a sprint tower. Also with 15 it will settle for roaming towers that only have 1xrtt, as opposed to the custom PRLs that aim for Verizon 3G towers whenever possible.
Try out the other 2 PRL
there is 01337 and 31337 PRLs. I have yet to test the 31337 but 01337 works well. 00001 targets Verizon towers by default before Sprint, and if that one doesnt help you much I dont think 01337 will either as it is just a modified 00001. 11115 Wont help either as you still have some Sprint service so it still defaults to that network.
Here are 3 US Cellular PRL files for you to try:
http://www.megaupload.com/?d=EFOKA16L
http://www.megaupload.com/?d=O6JINILZ
http://www.megaupload.com/?d=9W7K02BI
15096 allows 3G roaming. Enjoy
Is it safe to install prl 15096? I have an EVO 3d with free roaming
sorry havent checked back in a while, I will give all 3 a try
Thanks
I just want to know if I'm gonna get extra charges from sprint if I use those 3 prls
mrjaydee82 said:
I just want to know if I'm gonna get extra charges from sprint if I use those 3 prls
Click to expand...
Click to collapse
First off, it is too dangerous to use any of these unless you have a plan with unlimited roaming. However even so sprint has gotten very sneaky. They have advertised unlimited roaming, but just like their unlimited data if you do too much [voice or data roaming], or a majority of your usage is roaming [even if you barely use any] your contract states in fine print that they can terminate service. Now so long as you aren't tethering a ton, or using lots of data they don't seem to mind, but if you do they send you a warning, if it persists they terminate you. You should not get charged ever with the plan you have, and you shouldn't get terminated unless you hog data. Hogging data on sprint is bad enough but hogging data on Verizon via roaming is very wrong. They won't terminate you unless you are abusive, so I hope you have nothing to worry about.
Since Megaupload is down could you please repost the prls
Thanks
Check THIS thread. A guy here on XDA is testing all sorts of different PRL methods. Hope it helps!
GGerk said:
Since Megaupload is down could you please repost the prls
Thanks
Click to expand...
Click to collapse
Here is 15094 and 15096. My roommate has u.s. cell and his prl is 15114 im gonna try to pull it later...
gunfromsako said:
Here is 15094 and 15096. My roommate has u.s. cell and his prl is 15114 im gonna try to pull it later...
Click to expand...
Click to collapse
THANK YOU SO MUCH!!! I have been searching for an EVDO US Cellular PRL for around a year now, and have never found one. I tried yours, and they work. How do you go about extracting them from a phone? I've never been able to figure that out. I really needed this since most of the places my Sprint phone roams in have little to none Verizon coverage, while there's perfect US Cellular 3G.
petarmarinov37 said:
THANK YOU SO MUCH!!! I have been searching for an EVDO US Cellular PRL for around a year now, and have never found one. I tried yours, and they work. How do you go about extracting them from a phone? I've never been able to figure that out. I really needed this since most of the places my Sprint phone roams in have little to none Verizon coverage, while there's perfect US Cellular 3G.
Click to expand...
Click to collapse
Well it depends on what brand of phone you have. The ultimate goal is get into diag mode and from there you can use QPST or DFS to pull the prl.
Sent from my Nexus 7 using Tapatalk 4
Related
I just loaded the hybrid prl to my phone and went from 1-2 bars about a quarter mile from a tower to 5-6 bars about a quarter Mike from a Verizon tower. This shows me that its not the phone that gets a bad signal, it is the service. I came from Verizon and I am used to everything working all the time, but on Sprint there are times a text won't go through. Does anyone know if I can do something to the phone to not show that I am roaming on Verizon now?
Sent from my PG86100 using Tapatalk
smalltownbird said:
I just loaded the hybrid prl to my phone and went from 1-2 bars about a quarter mile from a tower to 5-6 bars about a quarter Mike from a Verizon tower. This shows me that its not the phone that gets a bad signal, it is the service. I came from Verizon and I am used to everything working all the time, but on Sprint there are times a text won't go through. Does anyone know if I can do something to the phone to not show that I am roaming on Verizon now?
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
even if your phone shows ur not roaming it will on your bill and you will get kicked
what roaming? I thought sprint has free roaming?
This no longer the case?
Can you give me some info on how you changed to the verizon prl?
You can't hide that. Just like you can't hide your phone from 911. Verizon is aware of your number roaming. They will charge sprint for every minute and kilobyte you use. Since your are using verizon constantly, sprint will be charged a lot for your use. They will then, sooner rather than later, terminate your contract...and again soon. See it happen in these forums before.
Your brand new evo3d will then be without a service.
What do you expect? You can't root and bypass your way past everything. Sometimes you have to pay for stuff. Plus, sprint is the only unlimited data carrier left. If people continue to do as you are doing, and teether, etc...then that unlimited data may become limited.
OK. Two things I don't understand. PRL noob so go easy...
First, our phones automatically roam Verizon's towers for both cell service and 3G. Mine does it all the time. So why would we need another PRL? When the Sprint signal gets weak enough, it's going to use Verizon towers anyway.
Second, both Sprint and Verizon have had a "free roaming" agreement for over a year. The way it was explained to me at my local store, the agreement is that Sprint and Verizon both share towers so in the (less likely) situation where Verizon coverage is weak and there is a Sprint tower nearby, Verizon phones will actually roam on Sprint. The way it was explained to me: neither company is "renting time" from the other's towers so I don't think Sprint is paying out the wazoo (at all in fact) for Sprint customers roaming on Verizon towers.
Mike
mikeyxda said:
OK. Two things I don't understand. PRL noob so go easy...
First, our phones automatically roam Verizon's towers for both cell service and 3G. Mine does it all the time. So why would we need another PRL? When the Sprint signal gets weak enough, it's going to use Verizon towers anyway.
Second, both Sprint and Verizon have had a "free roaming" agreement for over a year. The way it was explained to me at my local store, the agreement is that Sprint and Verizon both share towers so in the (less likely) situation where Verizon coverage is weak and there is a Sprint tower nearby, Verizon phones will actually roam on Sprint. The way it was explained to me: neither company is "renting time" from the other's towers so I don't think Sprint is paying out the wazoo (at all in fact) for Sprint customers roaming on Verizon towers.
Mike
Click to expand...
Click to collapse
The PRL the OP put into place makes his phone roam on verizon constantly. A PRL serves as a handshake between the phone and the towers. Standard PRL looks for sprint towers, and if none are present it looks for verizon. The OP seems to have installed a prl that looks for verizon towers first.
You may be right about the free roam agreement, but sprint still cancels people's service if they are abusing this. Just happened in the Evo forums. There may be a free roam agreement, but verizon won't tolerate sprint customers exclusively using their bandwidth if they are not paying for it. They will then tell sprint that so and so number needs to be cut. Then sprint will send you a letter saying your contract is to be terminated on so and so date due to excess roaming. So, theoretically, this could happen to someone who has sprint, but lives in a sprint dead zone where they have to use verizon all the time.
Do it for long enough and they will cancel your service.
Where we live is a Sprint dead zone. Occasionally we do pick up the distant Sprint tower and my service says "Sprint" but I'd say at least 75% of the time my phone is using a Verizon tower since I work at home. Never got a spanking. Of course, I guess if I changed my PRL and they noticed I'm on all sorts of different Verizon towers (even where there is good Sprint coverage), maybe then they'd raise an eyebrow? I wonder if their setup is sophisticated enough to detect that you use Verizon towers all over town as opposed to using one particular tower all the time just because you live in a fringe area. Interesting.
What we really need is not a new PRL: we need the ability to change the phone's preferences so it switches to Verizon's towers earlier. For example, switch to Verizon towers ANY time the Verizon signal is better... not just when the Sprint signal becomes so weak it drops out.
Mike
FYI, they still send out free Airave's.
I'm not doing this to cheat Sprint. I can't even make a phone call at times and that can be dangerous and frustrating. I usually switch it to Verizon prl before work and back to Sprint in the evening. But I'm usually on WiFi all the time except at work. Today is day 30 or my 30 days. Maybe I should go back to Verizon
Sent from my PG86100 using Tapatalk
Ya i got one coming myself
Sent from my PG86100 using XDA App
chrischoi said:
FYI, they still send out free Airave's.
Click to expand...
Click to collapse
Yup.. I've got one, but haven't activated it yet... It kind of sux that I have to use my in-home broadband bandwidth to get decent service from Sprint.
Another thing that sux is that when I'm out on the water (Chesapeake Bay), Verizon has solid service where Sprint's service is spotty. Sprint's PRL is also set to NOT roam on these Verizon towers, causing a battery drain like there's no tomorrow.
Looks, like I might have to start using a Verizon PRL,when going out fishing..
smalltownbird said:
I'm not doing this to cheat Sprint. I can't even make a phone call at times and that can be dangerous and frustrating. I usually switch it to Verizon prl before work and back to Sprint in the evening. But I'm usually on WiFi all the time except at work. Today is day 30 or my 30 days. Maybe I should go back to Verizon
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
How are you switching PRLs? The ##PRL# EPST code doesn't seem to work for me.
Be careful with that Verizon PRL, after moths of using it, Sprint will call you and will cancel your account
Sent from my PG86100 using XDA App
Roaming data is not unlimited. So, if you roam every once in a while and pull down your latest email or check a map, etc., you'll be fine. If you're always on roaming data and pull too much data, you will be dropped. I've heard different numbers for the limits, but there is one.
Whatever happened to the ability to force roaming? On older devices we used to be able to pick "Sprint Only" "Automatic" and "Roaming".
I would always do that when I was getting crap Sprint signal.
I switched them using qpst. I have about 7 or 8 different prls saved to my computer I switch to to see what works the best.
Sent from my PG86100 using Tapatalk
i know these prl's pretty much tell the phone when and what towers to roam on.. i think i am correct. anyway the service at my house is HORRID on sprint! i mean absolutely horrid. is there a way to edit these prl's so that my phones roam threshold to roam will be more towards verizon.. because i pretty much have to actually lose service before it roams on verizon at my house.. and even then it switches back and forth, so service is pretty much a big 0000000000 ...
can a prl be edited to pretty much stay on the stronger roaming signal (verizon) until a fairly strong sprint signal is captured.. this would eliminate the need to keep switching the verizon prl i am using to a sprint prl when i leave home so i dont draw red flags for roaming all the time!!.
What ROM are you using?
no rom.. i am not rooted.. i am just using verizon prl to get service via qpst.. i am using 0001 prl..
i am actually using 0001 verizon prl while home and then switching to stock sprint when i leave.. it would be great to not have to do this crap!.. seems the prl could be edited with better thresholds to stay on verizon while im home with crap service.
slreno said:
no rom.. i am not rooted.. i am just using verizon prl to get service via qpst.. i am using 0001 prl..
i am actually using 0001 verizon prl while home and then switching to stock sprint when i leave.. it would be great to not have to do this crap!.. seems the prl could be edited with better thresholds to stay on verizon while im home with crap service.
Click to expand...
Click to collapse
Try the 11115 PRL, it's a business PRL and Sprint won't kill your service for roaming on Verizon too much
any links to 11115 prl?
This is Sprint's 01115 PRL. I think its the same as what you are requesting. If its not, then disregard....
http://db.tt/DLuTxOer
Sent from my PG86100 using xda premium
slreno said:
any links to 11115 prl?
Click to expand...
Click to collapse
11115.zip
AFAIK, no PRL is going to do what you want. 11115 will allow you to roam on 3G more often but it won't change the threshold at which it switches over to roaming on Verizon towers. I wish there was a way to do that! I'd love to be able to tell it to switch to Verizon towers when the signal drops below 2 bars on Sprint or something like that. I think that's embedded in the radio software and not even the ROMs can access/change that. You'd probably need a custom radio update and I'm not aware of anyone "hacking" those.
Mike
I would call Sprint about an Airave
http://forum.xda-developers.com/showthread.php?t=1189192&highlight=airave
Check out this link above from an earlier thread. They might give you a free airave and that should solve the problem you are having at home.
Be careful with Verizon prl, a lot of people are getting their lines terminated because they data roam too much.
The Airave isn't that great either. The one they are giving out now is pretty horrible for texting.
mikeyxda said:
AFAIK, no PRL is going to do what you want. 11115 will allow you to roam on 3G more often but it won't change the threshold at which it switches over to roaming on Verizon towers. I wish there was a way to do that! I'd love to be able to tell it to switch to Verizon towers when the signal drops below 2 bars on Sprint or something like that. I think that's embedded in the radio software and not even the ROMs can access/change that. You'd probably need a custom radio update and I'm not aware of anyone "hacking" those.
Mike
Click to expand...
Click to collapse
If you're rooted there is an app called roam control that'll do it
---------- Post added at 03:53 AM ---------- Previous post was at 03:49 AM ----------
cniels01 said:
http://forum.xda-developers.com/showthread.php?t=1189192&highlight=airave
Check out this link above from an earlier thread. They might give you a free airave and that should solve the problem you are having at home.
Click to expand...
Click to collapse
I had to call sprint 6 different times to complain bout service at home and finally they sent me one free. I have full 3g throughout my entire house.
The airrave wont work if you don't havea home internet connection right?
Rob the plumber said:
The airrave wont work if you don't havea home internet connection right?
Click to expand...
Click to collapse
The AIRAVE requires a constant power and broadband Internet connection to
operate. In the event of an outage, your phone will automatically try to obtain
service directly from the Nationwide Sprint network if coverage is available.
If so what would be the difference? Thank you
Spring is a nice time of the year.
The Fall PRL's might be better, just sayin'.
ycats said:
The Fall PRL's might be better, just sayin'.
Click to expand...
Click to collapse
my bad lol
I'm assuming you put Spring, instead of Sprint... I've had that problem. I fixed it, but now when I try and write Spring, I write Sprint. I had to backspace a couple times during the typing of this message.
darkstar765 said:
If so what would be the difference? Thank you
Click to expand...
Click to collapse
Sprint corporate PRLs have not helped me get better data speeds or better reception while on the sprint network. However, I do get better speeds and reception when I roam... When roaming I can roam on Verizon's 3G network.
I don't know the exact differences, but I know the corporate prl helped me with better reception in some areas. Can't say the same for network speed however. I assume it all depends on where you live.
darkstar765 said:
If so what would be the difference? Thank you
Click to expand...
Click to collapse
I think they allow 3g roaming, where regular consumer scum cannot.
Looked all over, still can't find it...
Where can I get the latest corporate PRL?
And how I do I install it?
yousefak said:
Looked all over, still can't find it...
Where can I get the latest corporate PRL?
And how I do I install it?
Click to expand...
Click to collapse
Here you go chief
Corporate PRL's will not give you any better signal or speeds on Sprint's network. They will give you better signal and data speeds while roaming however.
Just a word of warning: Sprint can cancel you for using the wrong PRL apparently, so tread with caution.
http://forum.xda-developers.com/showthread.php?t=1584851
Hi, I'm still learning about PRLs and how to make use of them.. so I manually updated my phone to Sprint PRL 11119.. I was hoping that it would let me roam on Verizon towers but its the same as the over the air PRL I had.. my phone only goes to US Cellular. the thing is US Cellular signal works but isn't that much better than Sprint..
So is there anyway I could force roam to Verizon? or maybe in my area I'm out of luck?
I'm in Rockford/Chicago Area
Have the HTC EVO 3D rooted stock version.
Used the Roam Control app to force roam
also just tried the new sprint prl 60687..
I appreciate any help you guys could offer..
Thank you.
I believe that PRL is a corporate prl, which will only give you 3g roaming in certain areas of the country. The only one I have gotten to work on my phone is the 00001 prl, however that forces your phone to always roam on verizon. 3g works perfectly (as it should work, hint hint Sprint). I haven't used it since upgrading to ICS since you cant change prl's with ICS, however it will work with any GB Sense rom with the 2.1 EPST
I understand that its mostly used for the 3G roaming but I also thought it would let me Voice roam on Verizon as well not only Data..
My phone with the 11119 prl did show 3G roaming but I wasn't sure if its Verizon or US cellular data tower..
Can a PRL like 11119.. roam to Verizon 3G while at the same time roam to US cellular Voice? or it have to be both voice and data?
Also; are you saying that I won't be able to roam on verizon unless I used the 00001 prl?
Thanks.
sitlet said:
I believe that PRL is a corporate prl, which will only give you 3g roaming in certain areas of the country. The only one I have gotten to work on my phone is the 00001 prl, however that forces your phone to always roam on verizon. 3g works perfectly (as it should work, hint hint Sprint). I haven't used it since upgrading to ICS since you cant change prl's with ICS, however it will work with any GB Sense rom with the 2.1 EPST
Click to expand...
Click to collapse
Can a PRL like 11119.. roam to Verizon 3G while at the same time roam to US cellular Voice? or it have to be both voice and data?
Click to expand...
Click to collapse
No, it's all or nothing. The PRL should connect your phone to a Verizon tower first, then a US Cell tower second, so there may not be verizon coverage where you are.
We do have Verizon coverage I'm 100% sure of that.. Are there any other causes that wouldn't let me connect to Verizon? I mostly need the voice.
Some prl's just dont work well with some phones and different areas of the country. Like I said, one of the prl's I tried didn't work in my area. I would just try a few and see if you find one that works better.
Well I guess for now I should be happy with the 3G roaming and later I might try different PRL versions as you said and see how it goes.
Thank you for taking the time to help.
sitlet said:
Some prl's just dont work well with some phones and different areas of the country. Like I said, one of the prl's I tried didn't work in my area. I would just try a few and see if you find one that works better.
Click to expand...
Click to collapse
Has anyone else had their data speed crap out on them after updating from 21089 to 21090? After updating this morning, I'm seeing a "1x" above my data icon now and even SpeedTest is timing out. If your data is fine, are you on a custom or stock ROM?
I'm on MeanRom v4.5, s-off with HBoot 1.4.
Not in my area its actually a lot faster now
Sent from my PG86100 using xda premium
Once again, stock PRL's have no effect on data speeds when you are on the Sprint Network. Stock prl's only affect what towers your phone connects to when roaming.
sitlet said:
Once again, stock PRL's have no effect on data speeds when you are on the Sprint Network. Stock prl's only affect what towers your phone connects to when roaming.
Click to expand...
Click to collapse
I believe you but it seems like such a coincidence that my data totally crapped out immediately after I updated the PRL. And a few others in the forums were reporting the same thing.
ur right
clankfu said:
I believe you but it seems like such a coincidence that my data totally crapped out immediately after I updated the PRL. And a few others in the forums were reporting the same thing.
Click to expand...
Click to collapse
i noticed the same thing man 1x all over the place..soo angry.... then i switched roms to venom teams and it came with 85 and boom everythings speedy again......so yeah =D
unslav3d said:
i noticed the same thing man 1x all over the place..soo angry.... then i switched roms to venom teams and it came with 85 and boom everythings speedy again......so yeah =D
Click to expand...
Click to collapse
Changing the ROM changed the PRL?
sitlet said:
Once again, stock PRL's have no effect on data speeds when you are on the Sprint Network. Stock prl's only affect what towers your phone connects to when roaming.
Click to expand...
Click to collapse
Do you have proof of this? Seems to me the prl tells the phone which towers to connect with, Sprint or otherwise. Why would they bother updating it so often, if it is just used for roaming? I seriously doubt they spend that much money on man hours just to update roaming towers.
Preferred Roaming List. Sprint phones will automatically connect to sprint towers. The PRL is only used to tell the phone what towers and frequencies to connect to when roaming.
Then explain prl 00001 that only connects to Verizon.
Sent from my PG86100 using Tapatalk 2
bcarter2000 said:
Then explain prl 00001 that only connects to Verizon.
Sent from my PG86100 using Tapatalk 2
Click to expand...
Click to collapse
The PRL affects every tower the phone connects to. ON network or OFF.
The list contains data about every access point on or off network that the phone can connect too. It then has priority set for on network access points so those will be chosen over an off network access point.
Roaming two definitions
1. When a wireless device associate automatically with a different access point.
2. When a wireless device connects to another providers access point.
bcarter2000 said:
Then explain prl 00001 that only connects to Verizon.
Sent from my PG86100 using Tapatalk 2
Click to expand...
Click to collapse
Because it sets the Sprint towers as the roaming towers, thus the phone thinks Verizon towers are the towers it should be normally connecting to.
sitlet said:
Once again, stock PRL's have no effect on data speeds when you are on the Sprint Network. Stock prl's only affect what towers your phone connects to when roaming.
Click to expand...
Click to collapse
YOU MIND PROVING YOUR STATEMENT?
Everyone that got the update did a profile update. SINCE THEN EVERYONE IS HAVING THE SAME SLOW DATA ISSUE! SPRINT PURPOSELY DID THIS!
Sprint's data network is crap anyway. And I highly doubt Sprint would purposefully release a PRL to limit phone's data usage.
There was a prl pushed last year that everyone got and everyone was stuck on 1x data. I think this might have been when I was on the lg Optimus s, can't really remember... But either way, I traveled quite a ways back and forth to work, data never changed from 1x. Reverted to an older prl, I got 3g back. I know prl is meant to control roaming... But I think there's more to it than that. I've seen first hand it affect more than when I roam. But I will buy that it won give anyone faster or slower speeds from the same network other than affecting HOW it connects to the network.
Sent from my PG86100 using xda app-developers app
tws101 said:
The PRL affects every tower the phone connects to. ON network or OFF.
The list contains data about every access point on or off network that the phone can connect too. It then has priority set for on network access points so those will be chosen over an off network access point.
Roaming two definitions
1. When a wireless device associate automatically with a different access point.
2. When a wireless device connects to another providers access point.
Click to expand...
Click to collapse
That's what I thought. Thank you.
sitlet said:
Because it sets the Sprint towers as the roaming towers, thus the phone thinks Verizon towers are the towers it should be normally connecting to.
Click to expand...
Click to collapse
By that rational you prove my point. The PRL does tell the phone which towers to connect with. Which in turn could effect data speed.
Sent from my PG86100 using Tapatalk 2
What matters is we need to downgrade our PRL TO 21089
Sent from my PG86100 using Tapatalk 2
I DONT' THINK you guys are getting it. how many people in here did a PROFILE UPDATE TO GET THE PRL!? IT WAS IN THE PROFILE UPDATE THAT KILLED THE SPEED! I want to know WHAT THEY PURPOSELY DID TO SCREW WITH OUR DATA!
runcool said:
I DONT' THINK you guys are getting it. how many people in here did a PROFILE UPDATE TO GET THE PRL!? IT WAS IN THE PROFILE UPDATE THAT KILLED THE SPEED! I want to know WHAT THEY PURPOSELY DID TO SCREW WITH OUR DATA!
Click to expand...
Click to collapse
Use qpst or flash back to a gb Rom & change your prl then.
Sent from my PG86100 using xda premium
Well, it would appear that something is amiss here with the PRL. I am running a custom rom, and when it was loaded, it had 21089 as the PRL. Data speeds here and places I travel were acceptable. Now this past week I was on the road to a location that according to the sprint coverage maps should be "best" for the coverage, but the entire time I was there the phone only had 1X connection at what could be described as sucky speeds at best. The fact it indicated 1X would tend to tell me it was actually roaming and not actually on a Sprint network. So is it possible that due to agreements they have in place with other providers, they show coverage in areas they actually have no towers and are using other providers towers? I may be wrong, but it is my understanding that those of us who do not have the "corporate" PRL are downgraded to 1X when roaming. Now that I am back in my home area, 3g is back and everything is back to normal.
By the way, I did not do a profile or prl update, so I am not sure when or how 21090 got loaded.
I do plan on contacting the folks at Sprint and see if they have any explanation for this level of service. Do not have a lot of hope here, but can't hurt. I will post an update if they give me anything actually useful!
Have a good weekend everyone.