[Q] No 4G - EVO 4G Q&A, Help & Troubleshooting

After i rooted using unrevoked i tryed to use 4g but couldnt connect please HELP!!!

Did you back up your rsa wimax keys? What rom are you on? Why don't you hit up the market and download the free app "rsa key checker" to see if you still have 4G.
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I am on stock rom have not flashed anything

Its fixed thanks

driverx125 said:
Its fixed thanks
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Lol well glad you fixed it!
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Related

Questions on bonsai 4.0

First and formost my phone is on stock eb13 with genocide kernel, rfs, and rooted with oneclickroot v2.5.5 and am still really new to all of this so please help me out.
First I was wondering if I can flash bonsai right away or if I need the new clockwork 3.x with ext4?
Second I was wondering if anyone on this rom is having any of the same battery charging problems as those caused by the new syndicaterom with twilight kernel on ext4?
Any help would be greatly appreciated, thanks!
Sent from my SPH-D700 using XDA App
for_ever said:
First and formost my phone is on stock eb13 with genocide kernel, rfs, and rooted with oneclickroot v2.5.5 and am still really new to all of this so please help me out.
First I was wondering if I can flash bonsai right away or if I need the new clockwork 3.x with ext4?
Second I was wondering if anyone on this rom is having any of the same battery charging problems as those caused by the new syndicaterom with twilight kernel on ext4?
Any help would be greatly appreciated, thanks!
Sent from my SPH-D700 using XDA App
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Click to collapse
Well I have the bonsai 3.0.1 and I think its only ext4 I would say just reroot with the 1 click root 3.0.0.6 boot into cwm3 let it do its thing. (Make sure u put the bonsai rom in ur sd card first) then afther that flash the rom and ur good. I have no issues with battery or anything on this rom this is the best rom I ever used lol.
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Thanks and just to check... u can charge your phone while it is off right?
Besides that, I'm all for this rom!
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for_ever said:
Thanks and just to check... u can charge your phone while it is off right?
Besides that, I'm all for this rom!
Sent from my SPH-D700 using XDA App
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I haven't charged it while its off but I'm pretty sure it works cuz mammon88 and randy_t have the most stable rom and everything works so I'm preaty sure it charges while its off
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Well if you get the chance please try it out because thats the only thing stopping me from getting this rom... The fear of not being able to charge while it is off, thanks in advance!
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for_ever said:
Well if you get the chance please try it out because thats the only thing stopping me from getting this rom... The fear of not being able to charge while it is off, thanks in advance!
Sent from my SPH-D700 using XDA App
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Click to collapse
Ill try it tonight and let u know tomorrow
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Pretty sure Bonsai scans your phone and formats it for EXT4 if it isn't already. It backs up your data and restores it, too. Just do a complete backup then flash it. If it is a no go, just restore.
for_ever said:
Well if you get the chance please try it out because thats the only thing stopping me from getting this rom... The fear of not being able to charge while it is off, thanks in advance!
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Mine charges fine while off.
Anyone using Sprint Navigator? Please check how many satellites it finds under Share & More/Diagnostics. I have 2 epics, 1 on Bonsai and 1 with just stock and Genocide, and both report 1 satellite and 10% GPS. GPSTest reports 9 Satellites and Google Nav works fine (hate the voice and graphics).
Thanks.
Can't install extras...
I tried installing the removed apps, and when running from "Install from SD Card" it says it is aborted and not installed. Any secret I am missing out on?
Dan
It charges fine while off
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So can we just flash this over 3.0.0? And does it remove currently installed Sprint apps? Hate to reinstall those again.
Thanks.
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kennyglass123 said:
So can we just flash this over 3.0.0? And does it remove currently installed Sprint apps? Hate to reinstall those again.
Thanks.
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It probably will remove the sprint apps if they where not in the rom.
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Thanks for ur guys help and any other suggestions would be greatly appreciated!
Im gonna flash it when I get home from school
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for_ever said:
Thanks for ur guys help and any other suggestions would be greatly appreciated!
Im gonna flash it when I get home from school
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Click to collapse
Good luck man
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Live Wallpaper
I installed the missing live wallpaper files to the system/app folder on the phone but I cant get them to show up. I read something about changing the permission of the files, but have no idea how to do it.
Help!
Love the Rom so far!
~G
Finally found it. Used Ghost Commander to change the permissions. Live Wallpaper is back but some seem to be missing from the stock selection that came with the phone. No worries.
Okay I finally pulled everything off and now have bonsai4all on my phone but for some reason I can't connect to wifi any more? It does come up, and I did save the ip address, but now, for some odd reason, it won't connect to it... help?
Sent from my SPH-D700 with the new bonsai using XDA App
Go into settings, manage applications, find the app and clear data and cache. That worked for me on wifi tether.
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Wait, what app am I looking for to fix my wifi problem?
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for_ever said:
Wait, what app am I looking for to fix my wifi problem?
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Click to collapse
Oh...wifi not wifi tether...ok my bad. "Forget" networks and let it find it again.
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[Q] No 4g

so i dont use 4g that often. But im stuck in an airport and tried using wifi teather with 4g and im not getting any signal. I know that there is 4g here i have used it before at the same airport.
I have been trying some new roms recently and is it possible to loose 4g that way?
Check and see if you have your keys go to the market and download Wimax key checker
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evo4gnoob said:
Check and see if you have your keys go to the market and download Wimax key checker
Sent from my PC36100 using XDA App
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Click to collapse
JUst checked and it says i have the RSA key
Try this, it worked for me.. http://forum.xda-developers.com/showthread.php?t=733773
don't forget to wipe..

Samsung epic 4g custom rom issues

I have a Samsung epic that when I flash a custom rom on it it never gets 3g it just switches between 3g n no service but the 4g antenna works
If someone can pm me if u have any insight to what's going on or how to fix I greatly appreciate it
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I would say 1 or all of the following three things
1) try reflashing the rom
2) try flashing a sifferent modem
3) try updating the prl
iceman0688 said:
I have a Samsung epic that when I flash a custom rom on it it never gets 3g it just switches between 3g n no service but the 4g antenna works
If someone can pm me if u have any insight to what's going on or how to fix I greatly appreciate it
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sent from a phone using an app
Restore your backup and reflash the ROM... Seems to work for me.
Sent from my Customized Samsung Epic 4G via XDA app
What rom are u using
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Im on Clean GB with Clean kernal v1.
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euphgirl said:
Im on Clean GB with Clean kernal v1.
Sent from my Customized Samsung Epic 4G via XDA app
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Me too ... except I am on clean kernel
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You've got some helpful responces, also consider that you may have a bad download of the rom. At least verify the file size, or download a new copy to be sure.
sent from my secret underground bunker

Updating prl...

I am on cm7. And for some reason my 4g wont connect. So I was wondering if I flash a sense rom update my prl and then flash back will the updated prl stick? And would that fix the issue? Any help is appreciated.
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The update will stay. But first download 'rsa key checker' from the market and make sure your 4g keys are still intact
We're comin from a pure power source.
Ok so it told me my key is missing. How do I fix that?
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davemw2 said:
Ok so it told me my key is missing. How do I fix that?
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Click to collapse
Restore a previous nandroid backup you made which might gt key back or follow -
http://forum.xda-developers.com/showpost.php?p=7028037&postcount=1
and more info at http://androidforums.com/evo-4g-all...ved-missing-wimax-keys-update-first-post.html
Yea, you can flash a sense rom and update prl, and it will stick after flashing back to cm7, however prl has nothing to do with 3g or 4g, just roaming. If your wimax keys are lost, follow the directions above and hopefully you have a backup of your wimax keys somewhere.
Yeah I just went back s-on and am getting the phone replaced thru Sprint for the 35. For some reqson my computer doesn't work well with adb. It 6 years old.
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But as hind sight is 20/20 I will be backing up Wimax and making copies of it.
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4g will not work with app store

Is anyone having this issue too? If my 4g is on, i can surf the Web, but now it won't update apps or download them. It stuck on waiting for network, but when i switch to 3g, download starts right away...4g not working for downloading or updating apps.
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It's been posted before in other portions of the thread. Nothing I can do besides the temp fix. Go to setting-manage apps- the find the play market and clear the cache then uninstall the update. You will have to do that every time you re enter the market under 4g
let me guess you are on a GB build possibly with a ICS modem? if so then you need to choose either one or the other. i was having the same problem recently and thats how i fixed it.
nthornton1990 said:
let me guess you are on a GB build possibly with a ICS modem? if so then you need to choose either one or the other. i was having the same problem recently and thats how i fixed it.
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Guess again. I work for Sprint and brand new, never before touched phones are doing this out of the box.
But I have no idea why.
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Yep ive gotten calls on this as well as confirming it on multiple stock phones with 4g.
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It seems 4g falls asleep on the job sometimes and hits the snooze button on the alarm clock.
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danielddube said:
Is anyone having this issue too? If my 4g is on, i can surf the Web, but now it won't update apps or download them. It stuck on waiting for network, but when i switch to 3g, download starts right away...4g not working for downloading or updating apps.
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Has an issue with 4g falling asleep.. I changed the sleep time to make it longer before 4g falls asleep.. (was stock when I did this)
MiguelHogue said:
Has an issue with 4g falling asleep.. I changed the sleep time to make it longer before 4g falls asleep.. (was stock when I did this)
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It goes back to the default settings if you flash roms correctly, just so you know.
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Nope on el29 with el29 modem and kernel still does it
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Mine works fine with 4g on sfhub's ff18. But my Evo 3D has this problem..
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Just recently started having this problem. Google Play was recently updated, so I dont think it was our phones or Sprint causing the problem.
dw3bb10 said:
Just recently started having this problem. Google Play was recently updated, so I dont think it was our phones or Sprint causing the problem.
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Click to collapse
Yes your correct there is no real fix until they update the market again. or if you flash a ROM with a new Ics market then it should work fine.
Install the ics ota update from stock recovery 4g downloads on the play store now works
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criptix said:
Install the ics ota update from stock recovery 4g downloads on the play store now works
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I had the same issue, but can confirm the upgrade fixes it.

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