[Q] 4g turns on then off repeatedly - HTC EVO 3D

I am reporting this from the SU forums as I never got a responce there.
I have an issue with my Sprint Evo 3D that started soon after upgrading to the official ICS update.
When I am in an area with 4g WiMAX coverage (San Antonio) my phone will constantly turn on and off the 4g antenna. It says scanning for signal, then connecting to sprint, then it turns off. After a couple seconds it turns back on and does it all over again. It will do this all day long if I am in an area with 4g coverage.
As soon as I leave San Antonio city limits and get out of range of 4g the radio will stay on but it will of course say not connected.
Restarting the phone does nothing. I havn't installed any new apps, but several of them have been updated. I don't have any apps installed that I think would effect my connections. I have Network Monitor Mini installed but I have had it installed ever since I got the phone (Couple months after release) and the 4g issue is something recent. I have also updated The PRL and profile.
Does anyone have any recommendations for anything I can try to fix this issue?
Thanks,
-Chris

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Maybe one of your apps isn't ICS compatible. Are you rooted? You could try removing apps or factory reset. Is definitely not common afaik. My dad has a stock ICS 3d and hasn't mentioned having this issue.
Imagika FTW... with Tapatalk 2

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All of the apps I have installed that did not come with the phone's stock ICS ROM work without any problems, so I assume they are ICS compatible. My phone isn't rooted either.
I'll wait for a few more replies before I do a factory reset. Is there a way to backup my app data without being rooted?

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I understand about the reset. You can back up your data if you temp root first (unless there is an app that can do it without root, but I don't think there is). A word of warning though. When I temp rooted, my phone bootlooped so I was unable to backup any data.
Imagika FTW... with Tapatalk 2

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I wanted to bump this thread to see if I can get any more replies before I reset my phone.
I have uninstalled all of the apps that I have not used recently to try and see if any of them caused this problem, but that didn't change anything.
Most of my apps are cloud based apps, so I only need to log into them to restore my data. There are a few apps that I would like to save the data for though. If anyone knows of a way to manual copy the data to my computer, please let me know. The apps I want to save the data for are:
1. Modern Combat 3
2. Dead Space
3. Osmos HD
4. ICE
5. FuelLog
6. Map Rules FREE
7. Alarm Droid
8. Fieldrunners
9. NOVA 3
10. Reckless Racing 2
11. Shadowgun
12. Zenonia 3
13. Zen Bound 2
I don't mind rooting my phone, but the last time I checked my hboot would not allow an easy root. It required using the wire trick or using a linux live CD. Of course now since I have the newest update, the hboot has probably changed and those methods may not work anymore.

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Could just be your area call sprint and get ur msl number then
Dial ##3282## and put msl as password go to edit
Then restore data and let phone reboot
Sent from my SPH-D710 using XDA

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Just in case sprint wants to give you **** about giving you your msl code here's a quick and easy guide that will have your phone s-off and rooted http://forum.xda-developers.com/showthread.php?t=1889438 . After you obtain root I suggest using titanium backup to backup your games and data. There's a app called msl reader that will give you the easist way to get your msl code without jumping through hoops with sprint or cdma workshop. If a data restore doesnt work, and you want to have that stock sense look there's a few custom sense roms that will have that plus everything tweaked out under the hood. Meanrom ics from mike, cool sense from coolexe and common sense from beneath-a-burning-turtle all of which can be found in the cdma development section
Oh I forgot to mention, these roms have 4g working properly

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What does the msl allow me to do? The poster above (who's account is now disabled, so I do not expect him to reply) mentioned using the msl to edit and restore data.
Does this mean that using his directions will wipe my phone and return it back to factory, or is he referring to a different kind of data to be restored?
Another thing I notice now is that 3g has been horribly slow inside the city limits. I use to be able to get 1-3 mbps download speeds and a ping of around 60-100ms, but now I can barely get above 400kbps and lower than 350ms latency. Outside the city limits when I am at home (north of SA) my 3g speeds return back to normal.
I plan on stopping by the Sprint store tomorrow or Friday and having their techs look at the phone. Luckily it is an actual Sprint corporate store, and not a third party reseller. (I'll never use a third party again, way to many headaches and broken promises)

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chris311 said:
What does the msl allow me to do? The poster above (who's account is now disabled, so I do not expect him to reply) mentioned using the msl to edit and restore data.
Does this mean that using his directions will wipe my phone and return it back to factory, or is he referring to a different kind of data to be restored?
Another thing I notice now is that 3g has been horribly slow inside the city limits. I use to be able to get 1-3 mbps download speeds and a ping of around 60-100ms, but now I can barely get above 400kbps and lower than 350ms latency. Outside the city limits when I am at home (north of SA) my 3g speeds return back to normal.
I plan on stopping by the Sprint store tomorrow or Friday and having their techs look at the phone. Luckily it is an actual Sprint corporate store, and not a third party reseller. (I'll never use a third party again, way to many headaches and broken promises)
Click to expand...
Click to collapse
I got my msl question answered today.
I stopped by the Sprint store on the way home and had one of their techs take a look at my phone. He used my msl to reset the data connections but that did not fix anything.
After that he took the phone apart and then replaced the antenna but that did not work either.
While I was there I also told him about the poor 3g performance while in the city limits of San Antonio. We found out that it appears to be a network issue after I asked him if he could test his 3g speed on his own phone (The new Evo 4g LTE) and his 3g speed test only netted him a 50kbps download speed, with a 500ms ping. My phone scored a little higher than his, but still only achieved 200kbps. I told him that the 3g speed has been slow for a month in San Antonio, but it works perfectly fine once I leave the city limits. He said that they have not received any complaints from other people about slow performance, which he thought was odd if this problem has been going on for so long.
The last thing he said he could try was a factory reset, but I told him that I wanted to try some other things first.
He suggested that I called Sprint using *2 to let them know about my issue. He said that they should be able to tell me if my problems are caused by network issues. My phone hasn't been the first phone he has seen that would not connect to 4g, but he said that issue happened last year and no one else has had the problem recently. The tech sitting next to him had an Evo 3D and he said that he has had no issues with connecting to 4G on it. He was even using 4G on his Evo 3D at the time and said his connection speed was fast.
There is some good news though. The tech agreed to order a replacement phone for me. He explained that I don't have to pay the deductible as the deductible only applies to stolen, lost, or damaged phones. I told him that I would called Sprint first, and then visit the store again to order a replacement phone if Sprint tech support is unable to figure out the problem.

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chris311 said:
I got my msl question answered today.
I stopped by the Sprint store on the way home and had one of their techs take a look at my phone. He used my msl to reset the data connections but that did not fix anything.
After that he took the phone apart and then replaced the antenna but that did not work either.
While I was there I also told him about the poor 3g performance while in the city limits of San Antonio. We found out that it appears to be a network issue after I asked him if he could test his 3g speed on his own phone (The new Evo 4g LTE) and his 3g speed test only netted him a 50kbps download speed, with a 500ms ping. My phone scored a little higher than his, but still only achieved 200kbps. I told him that the 3g speed has been slow for a month in San Antonio, but it works perfectly fine once I leave the city limits. He said that they have not received any complaints from other people about slow performance, which he thought was odd if this problem has been going on for so long.
The last thing he said he could try was a factory reset, but I told him that I wanted to try some other things first.
He suggested that I called Sprint using *2 to let them know about my issue. He said that they should be able to tell me if my problems are caused by network issues. My phone hasn't been the first phone he has seen that would not connect to 4g, but he said that issue happened last year and no one else has had the problem recently. The tech sitting next to him had an Evo 3D and he said that he has had no issues with connecting to 4G on it. He was even using 4G on his Evo 3D at the time and said his connection speed was fast.
There is some good news though. The tech agreed to order a replacement phone for me. He explained that I don't have to pay the deductible as the deductible only applies to stolen, lost, or damaged phones. I told him that I would called Sprint first, and then visit the store again to order a replacement phone if Sprint tech support is unable to figure out the problem.
Click to expand...
Click to collapse
Sorry, forgot to give an update.
I ended up not having to replace my phone. Since I was going to replace my phone, I went ahead and reset my phone back to factory. I was unable to figure out a way to backup my app data so I just bit the bullet and took the loss. Although really the only thing I wanted to save were mostly game save files. Everything else I could easily restore manually. After the factory reset, my phone was able to connect to 4G again.
I stopped by the store on my way home and talk to the tech to let him know that my phone started connecting to 4G again after the reset so that he could take my name off of the phone they were holding for me.
Not really sure why the update to ICS caused this bug, but I am glad I can stream Netflix and Crunchyroll between my classes again. I have gone ahead and performed the HTC dev unlock, but I am now just trying to find the best way to gain root so that I can install Titanium Backup so that if this ever happens again I can backup my data this time.
Luckily, it looks like I can gain root without needing S-OFF, so I do not need to perform that wire trick.