problem with boost flashed evo - EVO 4G Q&A, Help & Troubleshooting

hey fellas my buddy has a evo we just recently got for him to get off t-mobile since they're aweful in our area. After having boost as a new customer with the evo for 3 weeks, his 3G suddenly took a turn for the worst. when we first got him the phone we did a nandroid backup within having the phone for a hour..
the phone is now having the 3G come on and off (like lightly lit then turning dark with activity) and going back and forth when he tries to use any data at all. it's very spotty, sometimes it will work and sometimes it wont. we have tried restoring him right to the first nandroid backup we made with no luck. what gives? he hasn't abused his data at all or anything, his bill is paid and in good standing..
its also for the same amount of time been popping up the data call failure, cannot sign into sprint pcs network? or such.

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[Q] Losing all data when toggling 4g? [LTE

Hey everyone!
I was wondering if anyone else is having the problem where if you toggled your 4g to turn it off, you would lose all data entirely? I currently running winner's kang-cm9 and when I try to turn off 4g through the toggle or through the settings, I only get gray signal bars. I'm assuming I should still have 3g after turning off 4g. Is this someone that everyone is experience or is it my phone?
I'm having a similar issue (stock ROM). I notice it every morning when I leave for work. I leave my place and wifi disconnects (lack of signal). Since I don't have LTE outside, it seems like it try's over and over to obtain LTE signal. LTE is spotty in my area, so it will go in and out. However, 3G sometimes fails to connect and I sit there without any signal. It's incredibly frustrating...
Last night I just flashed to Apex ROM/Kernel. This morning I waited for my car to warm up a little bit and by the time i plugged in my phone, it had a 3g connection. I will be continuing to look out for this, but I have been able to replicate the issue in my first paragraph over and over again... something is definitely wrong with the radio on our phone (CDMA).
Oh that happens to me a lot too because I get bad 4g in my area so a lot of times when its switching back and forth I lose data for a while.
The problem I'm having is that I would try to disable LTE/4g to save battery but would end up losing all data (Only calls and text work). On my friends thunderbolt he was able to disable 4g and retain his 3g data. As for me, I lose all data and I have to restart to regain data again when I try to disable 4g data
Sent from my Galaxy Nexus using Tapatalk
Shooshi said:
Oh that happens to me a lot too because I get bad 4g in my area so a lot of times when its switching back and forth I lose data for a while.
The problem I'm having is that I would try to disable LTE/4g to save battery but would end up losing all data (Only calls and text work). On my friends thunderbolt he was able to disable 4g and retain his 3g data. As for me, I lose all data and I have to restart to regain data again when I try to disable 4g data
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
That's an interesting point. I was wondering how the other LTE VZ phones handled this situation... I think VZ/Google needs to address this in a fix ASAP.
I work in a largish company in Seattle area. We have ~5000 engineers working in the area and I posted the same question since my Verizon GNexus would completely lose all mobile data for hours at a time every 3-4 days. From what the results I got, they said that in our area they are all seeing those problems and they had different devices. I got responses from OG Droid, Droid Charge, GNexus, DroidX2, Thunderbolt.
I've been seriously considering returning my phone since this is clearly a verizon data network issue which is not limited to LTE as their press releases would have you believe.
caslca said:
I work in a largish company in Seattle area. We have ~5000 engineers working in the area and I posted the same question since my Verizon GNexus would completely lose all mobile data for hours at a time every 3-4 days. From what the results I got, they said that in our area they are all seeing those problems and they had different devices. I got responses from OG Droid, Droid Charge, GNexus, DroidX2, Thunderbolt.
I've been seriously considering returning my phone since this is clearly a verizon data network issue which is not limited to LTE as their press releases would have you believe.
Click to expand...
Click to collapse
Well see, i can get data if i toggle airplane mode or cdma to cdma/LTE. it takes me forcing the phone to start looking for 3g instead of LTE.
Very serious issue. Slow reconnects on a toggle that should be unobtrusive between 4g-3g. I suffer from the same issue.
What's worse. The reception in general is terrible. And dropping from 4g to 3g ..the phone either never reestablishes 4g or take.....a. VERY long time. Like, 10-15 minutes. Unbelievable
I'm trying desperately to get google to be aware of this and I'm PRAYYYIINNGG this is a software issue.
P.s this is my third nexus... so I believe this is everyone
Sent from my Galaxy Nexus using xda premium
Yep... I have two other friends with this issue as well. I just got off the phone with Verizon, and they acknowledged the data connectivity issues... they said an update is in the works and is tentatively sometime Jan/February.... for the record, i'm on 4.0.3 (axi0m rom); not that it should matter ...
What I'm seeing is similar but sounds like it might be slightly different. I have a thread on it here:
http://forum.xda-developers.com/showthread.php?p=21352288
I'm not sure if what I'm describing there is "normal" and the thing they are working on an update to address or if I have a bad radio/phone. Any thoughts?
In my case, it will go: 4G->no_data->4G in the span of about 30 seconds or so. The 4G indicator will still show for a few seconds but I'll get "no connection" kind of messages. Then I get just a solid gray triangle. About 30 seconds later, I see the bars, then the 4G indicator, then the bars turn blue.
Anyone else seeing this? This happened to the phone before this which I swapped due to this problem. What are the chances I got 2 bad ones in a row? Or is it just a similar issue to what you all are describing?

4g service but no 3g?

This JUST started yesterday...
So, yesterday at work I noticed I had no data...so I did the typical restart...still no data...I shrugged it off and went on my way. As I was driving I had data again. I use wifi at home, so when I got home I didnt notice any issues and honestly kinda forgot about it. Well on my way back to work this morning I looked at my phone...had full 4g service...all seemed well. Then I got to my office...
Now let me explain I DO have 4g in this area but honestly...its only a solid 4g outside. Its not the greatest indoors. Well in my office I only get 4g if I'm standing at the window or one "sweet" spot at my desk. So 99% of the time I'm in 3g. Well to make a long story short my 3g antenna seems to be borked. I can pull 4g fine...on lunch today I was in 4g and it was working great. However, when I'm in 3g I get zero data...my phone doesnt work in 3g only 4g.
I called verizon and they just decided to send me a new phone...
I have rooted my phone and I have put the newest radio on. That was awhile ago though. Tonight I'm going to try flashing a different radio but has anyone else had this problem?
Again I get NO 3g service only 4g. In an area where 4g is spotty thats NOT good.
Thanks!
Yes, I had the same issue. The first Nexus I had gave me spotty 4G service and never went to 3G in the couple of weeks I had it. Amazon sent me a replacement which is rock-solid. I get solid 4G coverage where I should (my wife and several coworkers have LTE phones so I know where I should) and when I don't have that 3G kicks right in.
I think you should definitely expected better results with a replacement. Good luck.
I had chosen to use 3G over 4G to save battery life. After about a week with the phone I began to notice that I can hardly ever get 3G reception any more, even though 4G reception has always been excellent. I don't think it is a problem with the phone, but rather Verizon tinkering with its network.
I was having the same problem all day today.
I switch the phone to CDMA during the day and use the office's WiFi for data. However, I noticed today as I dropped my daughter off at school after lunch that I had voice only and no data. Her school is the first tower north of my office that doesn't have an LTE radio, so I normally just get 3G.
Not today.
I drove back to the office and I was able to get data through the LTE radio, but the data connection would go dead as soon as I switched to CDMA. I thought there might be something wrong with the CDMA tower, but two of my co-workers had Thunderbolts set to CDMA only and they were having no problems getting data connections.
I talked with tech support for a good couple hours this afternoon and they had nothing for me. Eventually I flashed the leaked 4.0.3 radios and CDMA magically started working again.
Did the new radios fixed the problem, or is it just a coincidence?
Hmmm...
I have been having the same issue since yesterday. Verizon said there is no outages in the area. I had no data all the way home from CT to NY and finally when I got home at night 4G worked. 4G was working in and out on my way in so I forced CDMA to see if that worked and I have been unable to get anything since. I have a new SIM coming today, but somehow I do not think that will solve the issue.
I've noticed this too. I was turning my LTE off thinking it would use 3g, but I'm noticing now that many times I either have 4g or no data at all.
Sent from my Galaxy Nexus using Tapatalk
I'm having the exact same problems and registered here to see what the resolution is. I'm apprehensive to root as I am still within the 15 day return window and quite frankly for 300$ I think this is total BS. Never had a dropped call, missed or unsent text on the 3g network on my old Dinc and I've lived in the same place for 2 years.
OP- could you keep this updated on how your new device works out?
same exact thing happened to me. I'm already on my second nexus and I didn't want a refurb or to lose root. So I flash android revolution hd , used tb to delete all my apps, and hid all signs of root including deleting su. I took it to Verizon and they gave me a new sim card. It was OK for about a day then started acting up again. So I called them from my wife's phone and they had to reset my number to the network and its been fine since
Sent from my Galaxy Nexus using XDA App
justin94 said:
same exact thing happened to me. I'm already on my second nexus and I didn't want a refurb or to lose root. So I flash android revolution hd , used tb to delete all my apps, and hid all signs of root including deleting su. I took it to Verizon and they gave me a new sim card. It was OK for about a day then started acting up again. So I called them from my wife's phone and they had to reset my number to the network and its been fine since
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
What do you mean by reset your number to your network? Never heard that term before
I'm not exactly sure, some techs don't know about it. When I had my charge it had no data. So they reset my number and phone to the network and I immediately got data back
Sent from my Galaxy Nexus using XDA App

[Q] Signal Dropping Bad

Me Epic Touch that is using Verizon Towers is constantly dropping signal, I have tried every modem from EK - FD but nothing has seem to help. I tried with Page Plus original Prl which shows roaming and didn't help and also loaded other Prl's that doesn't show roaming all the time that Straight Talk uses, but it does the same thing. I have had many Sprint Phones activated on Verizon side and never had any problems like I am having now and My Cousin has The same phone also which is on Page Plus and his phone behaves the same way. Was wondering if any of you that have this phone and flashed it to Verizon are experiencing the same thing? If anyone has any opinions or could weigh in on what I might be able to try or maybe tweak on this phone that might help I would greatly appreciate thanks. Forgot to mention that I have tried both stock and Ics roms and when signal drops it will have a circle with lone threw it but I don't have to reboot phone signal always come back seconds later but trying to hold a conversation on this phone is bout impossible without 2 dropped calls in a 30 minute period.
Is the phone activated on Verizon or are you just using their towers for some particular reason? Keep in mind there are issues outside of the phone that may affect connectivity - I just had this happen with our local Sprint tower last week. Took a week for Sprint to confirm the problem was the tower and fix it.
If you made a nandroid backup before you changed the prl (witch is what you should do before messing around with anything to do with your phone) flash back to it, see if that helps at all.
HTC Hero -> Epic 4G -> Epic 4G Touch
It is activated on Verizon unlimited plan. I also have a nanroid back up of the stock rom behaved the same way. At first I though it was Page Plus being I never used them and gave them a try instead of always worying about data issues with ST. I let my time run out on Page Plus and and switched to Verizon new 50 unlimited pre-pay but still acts the same way.

(T-Mobile) Randomly Losing Signal

My gsiii for some odd reason loses 4G and sometimes even service. Last night when i was on a call, it dropped and the signal reflected that i was running on edge then it switched to someting that said "G." I looked at my brother's siii and he was also on edge. So i tried putting it on airplane mode however it would not go through. It's as if i never pressed anything. So i had to restart the phone and it was on airplane mode, so i took it off then about a minute and a half later i got 4G back. Today when i was browsing the web, i randomly lost 4G again but this time i continued to have signal just no data. About a minute later I got it back. About a minute later i lost it again and regained it about a minute later. I havent noticed anything else about the phone and ive had it for about a week and last night was the first time that i restarted it. Any ideas? Has anyone else experienced this? Thanks!
I'm also having the same problem it just happened to me today also and happened the other day when I restarted phone it did nothing then I did airplane mode that didn't do anything so I clicked the enable packet data off then on an item came back in hoping it's not going to be a hardware problem cause I've dropped calls for no reason and had no service or bars were showing but had no edge 4G etc
Sent from my SGH-T999 using xda app-developers app
ballenone said:
I'm also having the same problem it just happened to me today also and happened the other day when I restarted phone it did nothing then I did airplane mode that didn't do anything so I clicked the enable packet data off then on an item came back in hoping it's not going to be a hardware problem cause I've dropped calls for no reason and had no service or bars were showing but had no edge 4G etc
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Yeah it's really weird, when I was using mt4g, it would do that randomly as well, I'm not sure if it's a phone or a network issue. Anyone else experiencing this random drop in data?
Same here I think it's a common issue with tmobile devices.
Sent from my SGH-T999 using xda premium
I think is just the network it had happened to me but while driving some place and Idk if is the coverage but other then that I do see going from h+ and 3g, I have a custom theme install
Sent from my SGH-T999 using Tapatalk 2
I just moved from Sprint to Tmo and I'm getting the same on my S3. It would look like i have good 4g coverage with 3 bars then all of a sudden it goes to Edge. So I have to wait for it to go back to 4g to start surfing. Edge is like 15kbps for me which is not even modem speed which is 56k. If I accidentally start surfing on Edge it seems to wanna stick to Edge until I close whats using data then it will eventually go to 4g. But when I get 4g its awesome and I get over between 6meg to 12 but only 40% of the time. I called Tmo and they said I have great 4g coverage where I'm at....ya sure.
aznmode said:
I just moved from Sprint to Tmo and I'm getting the same on my S3. It would look like i have good 4g coverage with 3 bars then all of a sudden it goes to Edge. So I have to wait for it to go back to 4g to start surfing. Edge is like 15kbps for me which is not even modem speed which is 56k. If I accidentally start surfing on Edge it seems to wanna stick to Edge until I close whats using data then it will eventually go to 4g. But when I get 4g its awesome and I get over between 6meg to 12 but only 40% of the time. I called Tmo and they said I have great 4g coverage where I'm at....ya sure.
Click to expand...
Click to collapse
Ha ha tell them to give you credit Lmao
Sent from my SGH-T999 using Tapatalk 2
It's them rebooting equipment due to all the upgrades they're adding.
Sent from my MyTouch 4g
hedjemunkee said:
It's them rebooting equipment due to all the upgrades they're adding.
Sent from my MyTouch 4g
Click to expand...
Click to collapse
This is very good for a lot of reasons!! Can't wait.
Sent from my SGH-T999 using Tapatalk 2
I just checked settings... battery... cell standby... 45 percent without signal.... anyone else check those stats? I got people telling me they called but no record on my phone
cwalker0906 said:
I just checked settings... battery... cell standby... 45 percent without signal.... anyone else check those stats? I got people telling me they called but no record on my phone
Click to expand...
Click to collapse
I've only experienced outright loss of signal once, which was last night. So far nothing else has happened really. It was just odd that my phone won't even go into airplane mode until I rebooted the device.
Same thing happened to me. I was actually quite worried and about to send my phone back. Everything seems to be working okay now. No issues.
Sent from my SGH-T999 using Tapatalk 2
this has driven me mad for the past few days. recently I upgraded to a S3 and my dad got a S 4G (which was released 2 years ago). while we were in Costco, my S3 randomly switched to Edge while the S 4G has 4G all the time. ALso we were on vacation to San Francisco so I could experience "Tmo largest 4G network." While we were in a hotel in Fremont, my S3 again switched to Edge and back to 4G randomly while the S 4G had 4G. also the signal is not stable at all. sometimes(1 or 2 times) it even dropped to zero bar. SOMETHING wrong with samsung phones. I read somewhere someone had this issue with the S2 also. I can live with the HSPA+ for 2 years, but hey dont give me random Edge like that
I plan to go exchange for a new phone at Costco... probably a new S3 to see if the issue still exists...
K12123 said:
My gsiii for some odd reason loses 4G and sometimes even service. Last night when i was on a call, it dropped and the signal reflected that i was running on edge then it switched to someting that said "G." I looked at my brother's siii and he was also on edge. So i tried putting it on airplane mode however it would not go through. It's as if i never pressed anything. So i had to restart the phone and it was on airplane mode, so i took it off then about a minute and a half later i got 4G back. Today when i was browsing the web, i randomly lost 4G again but this time i continued to have signal just no data. About a minute later I got it back. About a minute later i lost it again and regained it about a minute later. I havent noticed anything else about the phone and ive had it for about a week and last night was the first time that i restarted it. Any ideas? Has anyone else experienced this? Thanks!
Click to expand...
Click to collapse
T-Mobile's 4G network works in a interesting way (do all HSPA+ networks work this way?). They idle in UMTS mode (3G) until there is network activity, and then switch to HSPA+ (4G) mode. The network changing is an automatic thing does to save battery life ("Cellular standby" is often the largest battery drains).
Ever use an AOSP-based ROM (i.e. Cyanogenmod)? You'll sometimes see the network indicator in the status bar switch between 3G to H+ to 4G, etc as you use it. Stock T-Mobile ROMs are hard-coded to always say "4G", but if you go to Settings → About phone → Status, you can watch the network type there change as well as the phone does anything over the cellular network.
You should never be dropping to GPRS or EDGE. Perhaps the mechanism described is defective on your phone?
Happened again today. Had signal but no 4G, not even Edge, just bars. i think it happens whenever the signals low. Thoughts?
I'm having the same issue at my work place. I'm getting Edge (50-80%) more often at my desk, when previously with my SGS2 it stayed at 4G all the time. Checking Cellstandby I am getting 31% time without signal.
Is there a setting to force 4g connection?
My office is in Cupertino, CA and reception is not bad in general, but there are a few locations with 4G dead spots.
I'll check my reception again at home (Santa Clara, CA). I can do a side by side comparison with my SGS2 (now belongs to my wife).
On call with TMO right now, they are going to do a reset of the phone in their system, then I will need to do a reboot. Fingers X'd that things will improve.
BTW, what options do I have to get a replacement phone if I bought mine from Walmart? Do I need to send it in or can I do an instore exchange? Just got it on Sunday. Will I incur any fees if I returned the phone?
---
Reset didn't work. Passed on to level 2, there submitting a service request to check reception in the area. Need to follow-up on Friday if the reception is still bad. Since I'm in Cali I do have 30 days to return the phone.
I have similar reception issue but I dont lose signal completely. I will go from 4g(hspa+) to 3g to edge then it will switch back to 4g after 30secs-60secs. Quite annoying since I will be stationary and it will happen and it happens more when Im in a car. Never had this problem when I had the Nexus One.
sfsilicon said:
I'm having the same issue at my work place. I'm getting Edge (50-80%) more often at my desk, when previously with my SGS2 it stayed at 4G all the time. Checking Cellstandby I am getting 31% time without signal.
Is there a setting to force 4g connection?
My office is in Cupertino, CA and reception is not bad in general, but there are a few locations with 4G dead spots.
I'll check my reception again at home (Santa Clara, CA). I can do a side by side comparison with my SGS2 (now belongs to my wife).
On call with TMO right now, they are going to do a reset of the phone in their system, then I will need to do a reboot. Fingers X'd that things will improve.
BTW, what options do I have to get a replacement phone if I bought mine from Walmart? Do I need to send it in or can I do an instore exchange? Just got it on Sunday. Will I incur any fees if I returned the phone?
Click to expand...
Click to collapse
Question. With your s2 what happens if you're in an area without 4g? Do you get edge?
Sent from my SGH-T999 using Tapatalk 2
I am having the same issue. I had perfect 4g coverage all over my town, (I live in south texas). The problems started 2 days ago, when I lost all 4g coverage. I took out my sim card and placed it back in and the 4g logo came back on. But now I have been noticing that my cell signal will completely drop and then slowly come back up. This has happened several times. I also went to tmobile and changed my micro sim card and the issue remains. AND NOW I AM ON EDGE!!!!!
Has anyone been able to get a replacement and did it fix the problem?
Sent from my SPH-L710 using Tapatalk 2

[Q] HELP! My Samsung Galaxy S3 Drops 100% of calls now...

Hey guys,
A little history:
Earlier tonight I noticed that my phone kept dropping phone calls in places that I never really had a problem before. I was sitting in my room, looking at my phone and I had 4 bars. I went to call Sprint to find out if there was an outage or issue with my account and at exactly 16 seconds into the call my phone said "No Service" and dropped the call. I was baffled, as the entire time I had 4 bars. I tried calling back, and once again at exactly the 16 second mark the call was dropped. I moved to different areas of my house, went outside, drove down the street to the park and tried making calls and they were all dropped. I tried updating the profile and PRL several times, and as each one was successful, my calls were still getting dropped. I was rooted and running a custom rom (I couldnt even tell you what... its been forever since I flashed anything) so I thought maybe that was the issue. I unrooted my phone, did a factory reset, and went back to stock. Then I updated my profile and PRL and tried making some calls... same results.
Using a friend's phone I called Sprint's customer service to troubleshoot and the rep walked me through all of the standard steps. She did mention that 4G was being rolled out in my area, but said that the two towers closest to me that my phone should be connecting to were not scheduled for their updates yet so I shouldnt even be effected right now. The last thing that she had me try was the ##72786# reset to update me to the correct tower. Now, when my phone came back on and finished everything it did say that I was connected to 4G and had 5 bars (this is the first time that I had ever received 4G at my house, let alone on this phone since I got it when it came out last year) however, my calls were still being dropped. Its not happening at exactly 16 seconds anymore, but so far every call (both outgoing and incoming) were dropped while in the middle of talking. The rep said that it was most likely unfortunately my phone because she did not see any service interruptions etc on her end. She could have of course been lying to me, and maybe the 4G roll out in my area is causing this.... but no one else I know is having these issues.
Has anyone experienced anything like this before? Any idea of a definitive way to find out if the issue is in fact my phone or if this is something I just have to wait out?
tl:dr - My phone drops all calls without fail, even in areas that Ive never had service issues. Both outgoing and incoming. Unrooted my phone, went back to stock just in case... same issues. Updated profile and PRL several times. Did the ##72786# update on the phone with customer service. My phone connected to 4G for the very first time ever, but my calls are still being dropped every time within the first 2 minutes. Sprint rep said that there are no issues on their end. Advice?
Thanks for any and all advice!
May be due to the towers being overloaded from everyone else being pushed on to them while their towers are out for upgrades. Unupdated towers will get crap for service once they get overloaded and they have to take a higher load when neighboring towers are down for upgrades.
°•○●¤◇★S☆A: Son's of Android★◇¤●○•°
I like to break stuff! :flipoff2:
Sign up for copy using this link and get us both and extra 5gb of free storage https://copy.com?r=b8U0ED
I went through that for two weeks back when they where doing upgrades and turning lte on in my area.
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