Going from 4G connection to WIFI requires reboot - EVO 4G Q&A, Help & Troubleshooting

Good afternoon,
I read in another thread on here that there are a few that have experience this and one mentioned that there is a fix somewhere but I've searched and haven't been able to turn up anything.
Basically, after I connect to 4G, then go back home and want to connect back to WIFI, I have to reboot before WIFI will work. And vice versa. After connecting to WIFI, I have to reboot before 4G will work.
Any help would be greatly appreciated.
Tim

I have the same issue. That will be a real pita.

timdsmith72 said:
Good afternoon,
I read in another thread on here that there are a few that have experience this and one mentioned that there is a fix somewhere but I've searched and haven't been able to turn up anything.
Basically, after I connect to 4G, then go back home and want to connect back to WIFI, I have to reboot before WIFI will work. And vice versa. After connecting to WIFI, I have to reboot before 4G will work.
Any help would be greatly appreciated.
Tim
Click to expand...
Click to collapse
Have you tried turning the radios on and off? Perhaps turning them both off then back on? perhaps turning on airplane mode then turning it off?

midri said:
Have you tried turning the radios on and off? Perhaps turning them both off then back on? perhaps turning on airplane mode then turning it off?
Click to expand...
Click to collapse
Say I'm at work on 4G. When I get home and then turn the 4G radio off and turn WIFI on, the WIFI radio fails to even turn on. I get an error saying it couldn't be activated...or something similar. Haven't tried toggling airplane mode.....

timdsmith72 said:
Say I'm at work on 4G. When I get home and then turn the 4G radio off and turn WIFI on, the WIFI radio fails to even turn on. I get an error saying it couldn't be activated...or something similar. Haven't tried toggling airplane mode.....
Click to expand...
Click to collapse
If you leave 4g and wifi both on through out the day do you run into problems? Or is it just initializing them after they have been off and you've been using the other radio.

midri said:
If you leave 4g and wifi both on through out the day do you run into problems? Or is it just initializing them after they have been off and you've been using the other radio.
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Click to collapse
So far it's been just initializing them after I've been using the other radio. My habit has been leave home, turn off WIFI and turn on 4G. Arrive home, turn off 4G, turn on WIFI. I haven't tried leaving both radios on all day... Hmmm....

Airplane mode does nothing.
Wifi on, turns off 4g. You can have one or the other on, not both.
Reboot phone, the first one you turn on, either wifi, or 4g, gets control until the next reboot.
I cannot find any way around it. Going to test a stock rom.

Stock ROM had 4g turned on and connected. (this is stock with the latest update)
Turned on wifi, it changed the status of 4g to Disconnected and it did enable wifi.
Must be something with the radio..
I am on DC 3.2.3 and baseband version 2.05.00.06.10

I'm on DC 3.2.3 Baseband version 2.05.00.06.10.
Radios *should* be fine. I did whitslack's method then flashed DC on top of that. Grrr... Sure is annoying having to reboot twice a day.

Related

[Q] 3g Mobile Network Issues

A lot of times lately I'm losing my 3g Mobile Network, my signal strength will be a full 4 bars and I still get the issue. Usually if I reboot the phone it will come back. I'm starting to think it gets lost after it connects to WiFi and then when I disconnect WiFi. Anyone having this issue? If so, are there any tricks to getting this to stop?
My phone is completely stock 2.2, no root.
I'm not sure which of these events may have triggered my intermittent lack of 3G connectability but these are the only changes I've made since this started happening:
1) Upgraded to Froyo.
2) Performed the .dun trick to allow 3g Hotspot. (Although I never use it, I tested it a few times but this problem happens without the Hotspot turned on.)
Did you do a factory reset after the froyo update?
Sent from my Incredible using tapatalk.
Nope, I used the SD card method before I got the OTA. Have never done a factory reset.
I have this as well, be it im on a different carrier (Cricket) but it appears in all stock htc froyo builds.
My assumption is that is the radio being used. of how HTC's implementation of Froyo interacts with the radio.
I switched radio's and havent had it occur on me while in the OS yet, and it does occur sometimes on boot still, but if it loads on boot it seems to stay up and stable.
My trick is to turn airplane mode on for about 30 seconds (30 seconds after i see the airplane icon), then turn it off, i assume this reloads the radio, when the brings 3g back.
I can also read my nv settings with qpst and reflash them back to the phone with no changes, which causes the radio to reload as well, and 3g ALWAYS kicks back on.
Also updating the PRL (even if its the same PRL) seems to work as well (assuming this is due to the reboot, which reloaded the radio)
The radio i am using now is:
2.15.00.09.01 - Seems pretty stable, except the occasional one of at boot, which is fixed by airplane on/off.
From what i can gather this nothing to do with custom roms, as many offical Verizon customers on Official NON Rooted 100% completely stock phones have this as well.
Hopefully HTC/Verizon will fix this in a MR update.
token419 said:
My trick is to turn airplane mode on for about 30 seconds (30 seconds after i see the airplane icon), then turn it off, i assume this reloads the radio, when the brings 3g back.
Click to expand...
Click to collapse
I'm gonna try that next time it happens. Easier than rebooting, then it wont bother me too much.
I had that problem once, and never saw it again.
One problem that just happened for a second time today is I cannot send or recieve MMS. HTC had me reboot the phone and call VZW support, of course they yelled at me for not using a task killer -.-
The reset worked, but I'm going to get annoyed if this becomes a regular problem
I have same setup and same issue. As soon as I made the EPST changes for tethering and hotspot, I started having this issue where I'd lose my data connection completely after disconnecting from my wifi when I leave my house. A reboot of the phone fixes it but it's still kind of annoying. It happens I'd say about twice a week.

4G issues-I have to reboot to turn on 4G

Hi all, sorry if this has been asked before but some of these threads are thousands of posts deep... I'm using the latest Myn Warm rom, with the stock kernel that's bundled with it (#17 I believe). When I try to turn on 4G, it turns on, scans, tries to connect to Sprint, then turns off and repeats that cycle over and over. It never actually establishes a connection. If I do a hot restart, then it kicks in. Similarly, turning off 4G requires a reboot as well (which I know is a known issue). Anyone else having this issue and is there a fix out there?
Thanks as always
Pontius Pilate said:
Hi all, sorry if this has been asked before but some of these threads are thousands of posts deep... I'm using the latest Myn Warm rom, with the stock kernel that's bundled with it (#17 I believe). When I try to turn on 4G, it turns on, scans, tries to connect to Sprint, then turns off and repeats that cycle over and over. It never actually establishes a connection. If I do a hot restart, then it kicks in. Similarly, turning off 4G requires a reboot as well (which I know is a known issue). Anyone else having this issue and is there a fix out there?
Thanks as always
Click to expand...
Click to collapse
Not sure I've seen anyone have the issue with trying to turn 4g on, but give this a shot if you haven't already, it was buried in that massive thread:
1. Menu-->Settings-->Wireless & Networks
2. Turn 4G OFF--> then ON--> and OFF again, waiting for radio to completely turn off and on each time.
3. Reboot and check your logs (download logger HERE)

[Q] Disable GSM radio

Is there a way to disable the GSM radio? Turning on airplane mode does not disable all radios.
I'm pretty sure this is a hardware problem since the phone has been through a wash and rinse cycle. Upon bootup, the back of the phone on both sides of the camera heat up. Teardowns show this to be the location of the amplifiers. Any attempts to flash a radio succeeds but the rom does not stay, i.e. the baseband is unknown. However, everything else works: screen, wifi, BT, etc.
Is there any way to ensure the cellular radios turn off, either temporarily or permanently? Using the test mode does not turn the radio off either.
I am running the stock 4.2.1 OTA update. No mods.
Alpha Psi said:
Is there a way to disable the GSM radio? Turning on airplane mode does not disable all radios.
I'm pretty sure this is a hardware problem since the phone has been through a wash and rinse cycle. Upon bootup, the back of the phone on both sides of the camera heat up. Teardowns show this to be the location of the amplifiers. Any attempts to flash a radio succeeds but the rom does not stay, i.e. the baseband is unknown. However, everything else works: screen, wifi, BT, etc.
Is there any way to ensure the cellular radios turn off, either temporarily or permanently? Using the test mode does not turn the radio off either.
I am running the stock 4.2.1 OTA update. No mods.
Click to expand...
Click to collapse
go to phone app, type *#*#4636#*#*, tap phone information, at bottom there is a button "Turn off radio".
Airplane mode does in fact turn off the gsm radio... Try restoring factory images via fastboot. Maybe that will fix it if there isn't hardware damage.

WIFI not working

Has anybody faced the issue of WIFI not working? It seems like my antaena is broken.
1. I first was on MyRom then it turned on and off.
2. I went to PA3+ then it workrd and stopprd after three days.
3. I factory reseted, it worked for two hours.
4. I ODINed back to stock, same thing.
5. I UNROOTED, same issue.
WIFI won't conect at all, the widget stays half green (half the tone as other activated widgets) and in settings, the switch stays at off but it says turning on....
Any solution?
ratatouille said:
Has anybody faced the issue of WIFI not working? It seems like my antaena is broken.
1. I first was on MyRom then it turned on and off.
2. I went to PA3+ then it workrd and stopprd after three days.
3. I factory reseted, it worked for two hours.
4. I ODINed back to stock, same thing.
5. I UNROOTED, same issue.
WIFI won't conect at all, the widget stays half green (half the tone as other activated widgets) and in settings, the switch stays at off but it says turning on....
Any solution?
Click to expand...
Click to collapse
I'm assuming you've tried multiple WiFi connections? Like, a free wifi such as mcdonalds or starbucks, etc? Does it just say scanning for IP, or "connecting?"
hunterjay7 said:
I'm assuming you've tried multiple WiFi connections? Like, a free wifi such as mcdonalds or starbucks, etc? Does it just say scanning for IP, or "connecting?"
Click to expand...
Click to collapse
Actually it says "Turning on..." and no, I have always connected to my work or home WIFI.

Airplane mode constantly turning on and off?

My phone is rooted, im on stock 5.0.1 no custom recovery or anything like that. I haven't changed or done anything to the phone recently either.
If I hold the power button down and look at the airplane mode option it will flicker on and off and as I lose service. Every now and then I'll get service for 5-10 seconds but most of the time my phone signal and data connection are off. Wifi and bluetooth work.
Any suggestions?
Unrooted the phone and went over to Sprint. They did a factory reset but the issue still persists. If anyone know how to fix this or even has suggestions please let me know. Its an otherwise perfectly working phone.

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