no 4g after flashing a couple new roms? - T-Mobile, Samsung Galaxy SIII

i flashed cm10 and only got edge service, and i know i get 4g in my area. then i went to cm10.1 still with edge. i then went back to the stock rom and still on edge (stock had 4g before i flashed cm10) any ideas on how to fix it?
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prettyflybrownguy said:
i flashed cm10 and only got edge service, and i know i get 4g in my area. then i went to cm10.1 still with edge. i then went back to the stock rom and still on edge (stock had 4g before i flashed cm10) any ideas on how to fix it?
Sent from my SGH-T999 using Tapatalk 2
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Click to collapse
Dumb question but have you checked your network settings. If you backed up your stock rom restore it and see if you get 4g again

http://forum.xda-developers.com/showthread.php?t=1801997
Just make sure you follow all THREE steps. People have a habit of completing one step of injecting the IMEI and thinking that's all you need to do.
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Checked EVERYTHING.
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I really don't understand how to do that.. :/
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prettyflybrownguy said:
I really don't understand how to do that.. :/
Sent from my myTouch_4G_Slide using Tapatalk 2[/QUOTE
Hmm ok check your apn its under mobile networks it should have tmobile with the box checked if not then that could be your problem. Worst case scenario if you know odin use it to flash back to stock
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Click to collapse

My apn is set to T-Mobile. But I lost my imei btw.
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prettyflybrownguy said:
I really don't understand how to do that.. :/
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Click to expand...
Click to collapse
Trust me bro, you can. Just follow through slowly and you'll fine. To make life easier, go back to Touch Wiz and just take it line by line.
You were capable of rooting and flashing, you can pull this off.
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Thanks for the motivation, I'm gonna do it tomorrow.
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Also lost 4G
After rooting and flashing Dev-3.22.1540.1-Stock-Rooted-DE-ODEX.zip ROM I lost 4G. The best I could manage is 3G. Now I flashed latest Viper ROM, but still no 4G.
Any idea why?
(I checked APN, it's something else).

ivuzmek said:
After rooting and flashing Dev-3.22.1540.1-Stock-Rooted-DE-ODEX.zip ROM I lost 4G. The best I could manage is 3G. Now I flashed latest Viper ROM, but still no 4G.
Any idea why?
(I checked APN, it's something else).
Click to expand...
Click to collapse
Imei intact?
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I'm having the same issue. When I go back to my orginial rooted backed up CWM KK 4.4.2 3G works perfect. Flashed a new ROM APN, IME and even checked *#*#info#*#* all are good. I just can't get 3G.
Any ideas?

This is rom issues/kernel most likely try to Odin please check your provider as well
Some roms/kernels break the service you may use unfortunately

Related

Epic touch on boost officially

I seen the boost store selling et4gs on boost officially anyone know what modems they are running and can we get that on our phones since its the same exact phone
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It's been on the website for about a month now...
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Mattix724 said:
It's been on the website for about a month now...
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Click to collapse
So i download that from the site and flash it on my phone? Is that safe to do? I didnt know it was on the site for that long thought it just came out
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The e4gt has been announced as a Boost mobile phone for a while now...
---------- Post added at 04:50 PM ---------- Previous post was at 04:48 PM ----------
kilogramz718 said:
So i download that from the site and flash it on my phone? Is that safe to do? I didnt know it was on the site for that long thought it just came out
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Click to expand...
Click to collapse
Post the link and I'll try to answer your question...
kilogramz718 said:
So i download that from the site and flash it on my phone? Is that safe to do? I didnt know it was on the site for that long thought it just came out
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Click to collapse
What? I meant that Boost has had the Galaxy S II on their site.
If you want a Boost modem you can flash the tar in Odin, there was a leak on here.
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Mattix724 said:
What? I meant that Boost has had the Galaxy S II on their site.
If you want a Boost modem you can flash the tar in Odin, there was a leak on here.
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Click to expand...
Click to collapse
Oh yea im running that already i wanted to know if it was different then the leak that is already out because while running the fg31 tar i got a system update notification to install fh29 so it made me wonder if thats the one thats on the official boost et4g if not could i take that and install it on mine
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Anyone that has an actual Boost phone will want to BOLO for FI22.
Source dropped which confirms it will be next OTA.
My friend has a boost galaxy s II can you root and use the ROMs in the development section for sprint
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castro08 said:
My friend has a boost galaxy s II can you root and use the ROMs in the development section for sprint
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Click to expand...
Click to collapse
Yes, the hardware is identical, just re-branded. The fact us sprint users can flash the boost firmware ensures the possibly.
Anybody have the sprint epic touch flashed to boost with working 4g now?
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kilogramz718 said:
Anybody have the sprint epic touch flashed to boost with working 4g now?
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Click to expand...
Click to collapse
I'm not sure if the system will work like that. I think depending on the donor phone. The system creates a working 4G for your phone. For example, if you used a normal LG 3G based phone. The system does not register you as a working 4G phone. Just my 2 cents.
Febby said:
I'm not sure if the system will work like that. I think depending on the donor phone. The system creates a working 4G for your phone. For example, if you used a normal LG 3G based phone. The system does not register you as a working 4G phone. Just my 2 cents.
Click to expand...
Click to collapse
Thanks. That makes sense actually i was just thinking that since the official boost one came out it would be a way to get us on 4g
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kilogramz718 said:
Thanks. That makes sense actually i was just thinking that since the official boost one came out it would be a way to get us on 4g
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Click to collapse
that is exactly correct. the donor must be 4g. sprint imei codes will not activate on boost or that is the story they are telling to sell phones
i actually flashed mine to boost and have so much truble... first of all my brother has sprint airave and that interferes with my phone. cant text make nor receive calls. it only works when i leave the house.. the bad thing is that i work under some apartment buildings and someone has an airave which is bad for me...
Does anyone knows if there is a fix to this..????
geomatiq said:
i actually flashed mine to boost and have so much truble... first of all my brother has sprint airave and that interferes with my phone. cant text make nor receive calls. it only works when i leave the house.. the bad thing is that i work under some apartment buildings and someone has an airave which is bad for me...
Does anyone knows if there is a fix to this..????
Click to expand...
Click to collapse
There should be no reason you to have issues at home because your brother has sprint. I have many friends that have boost that come over a lot without issues. Perhaps something on your settings are wrong when you flashed it.
geomatiq said:
i actually flashed mine to boost and have so much truble... first of all my brother has sprint airave and that interferes with my phone. cant text make nor receive calls. it only works when i leave the house.. the bad thing is that i work under some apartment buildings and someone has an airave which is bad for me...
Does anyone knows if there is a fix to this..????
Click to expand...
Click to collapse
Did you try to update your prl? Or update your data profile?
«--Sent from my Universally Epic 4G Touch--»

Nothing but edge

I currently switched from jb to ics and i got edge signal on ics and decided tonandroid so went bak to jb but now i seem to habe edge on jb as well... whats the problem?? Whats giving me a weak signal???
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IMEI intact?
stevessvt said:
IMEI intact?
Click to expand...
Click to collapse
Ummm wheres that at?? I went to accss points amd the bearer was unspecified and changed it to lte and it kindof got a lil bit better but i still get two bars and before i had all 5
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settings-about device-status-imei, if its intact it will be a long number, if its 0 then you have found your problem.
No everythings good.. i flashed like three modems and they gave me the same result... what could it be? It was perfectly fine yesterday
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Did you ever find out your issue? Kind of in the same situation here.

[Q] Will I bricking my phone

I want to install the official UVDLJA T-Mobile Rom on my Galaxy S3 and then install Frosty Jb. I have the T999v of Videotron one. Will my phone gonna be bricked or not? And my network gonna work also?
Thank you
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You're doomed bro. Turn back immediately.
Should be fine as long as you dont change your modem. I suggest you use mobile odin and unselect the modem. I did this with my t999v wind mobile and its fine.
I asked the same question with similar responses. But could those that had success maybe give a bit more detail on how they managed to odin the TMO stock? It passes the md5 but then fails when flashing, I have flashed numerous times in odin with no problem. Maybe an obvious requirement I am not aware of (stock recovery stock download or some such thing)
Thanks for the answer. I have another question. Before I turn to Frosty, my mobile network was only 3G and H+ but now with frosty, its only the 4G icon. So with frosty im on real 4g or its only a "fake" icon?
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Idyar said:
I asked the same question with similar responses. But could those that had success maybe give a bit more detail on how they managed to odin the TMO stock? It passes the md5 but then fails when flashing, I have flashed numerous times in odin with no problem. Maybe an obvious requirement I am not aware of (stock recovery stock download or some such thing)
Click to expand...
Click to collapse
Used Mobile Odin and de-selected MODEM and RECOVERY worked great. Thanks for the tip!
xxjack3dxx said:
Thanks for the answer. I have another question. Before I turn to Frosty, my mobile network was only 3G and H+ but now with frosty, its only the 4G icon. So with frosty im on real 4g or its only a "fake" icon?
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Click to collapse
T-Mobile has no real 4g. Some roms are coded to just show E and 4g for 3g, H, and H+, while other roms break it down more
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bfranklin1986 said:
T-Mobile has no real 4g. Some roms are coded to just show E and 4g for 3g, H, and H+, while other roms break it down more
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Click to expand...
Click to collapse
I get up to 25/Mbps faster than my girl friends LTE hox at least that's my experience with speed test and real world usage
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md1008 said:
I get up to 25/Mbps faster than my girl friends LTE hox at least that's my experience with speed test and real world usage
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Click to expand...
Click to collapse
Are you on stock?
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So OP your currently running frosty jb ?? I have a videotron whit vlalh2 and im pretty sure its incompatible ?
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slow 4g

For the past few days my data has been real slow well when downloading it starts off at good speeds but after a few minutes it slows down big time and for it to go back to normal i have to switch off my data then on and repeat that process any ideas what it could be or how to fix it cled tmobile support they were no help thx
Give a little more info
Are you rooted?
If so, are you running stock?
Custom rom name if any
Baseband version?
Yes im rooted running wicked v10 tmobile baseband version t999uvlh2
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Well, how much data have you used? You could be getting throttled especially if you've used lots of data in short amount of time.
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bigfnfil said:
Yes im rooted running wicked v10 tmobile baseband version t999uvlh2
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Click to collapse
And you have the unlimited data plan i assume?
Yes im on the unlimited plan and not sure about the throttling would have thought the tmobile rep would have mentioned that if that was the case
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bigfnfil said:
Yes im on the unlimited plan and not sure about the throttling would have thought the tmobile rep would have mentioned that if that was the case
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Click to expand...
Click to collapse
T999UVLH2 is your baseband version. Then i would try flashing the T999UVDLJC baseband and test it out.
There is a new mdm5 baseband out. Im sure you cant search and find it here.
I flashed wicked v10 on my friends tmo s3, were getting slow speeds as well. Gonna try a different radio
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I have the same problem in a certain part of Seattle where my hspa+ speed is around 4 - 10 kilobytes per second download..
Guess to many people using it
I don't think it's the rom itself. Try a different modem and report the findings. I'm on Wicked v10 in souther cali with latest modem and I'm getting great speeds. Can it be on tmobile end updating/refarming towers?
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Yeah i dnt know wat is wrong with it its been a few days now and same thing when i run a speedtest i get geood speeds but as far as downloading anything it starts good then goes down to like 650b and downloads always fail thx for the help tho
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Have you tried any of the other modems?
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No kind of new at this wouldnt no were to start open to any suggestions tho thx
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Click the link for Basebands/Modems thread in my sig. All flashable modems and a plethora of info about them is there.
Feel free to ask if you have questions. The thread is stickied in development if you need to find it later.
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Wow I was just trying to find out if others are having the same problem and Bam I see this. My download speeds start high then go slow. Hopefully it's the modem
I noticed it didn't start until I used the new T999UVDMD5
Edit: nope tried other modems and problem is still there
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Do you get different results during different times of day? Could be network traffic. Or if they're doing work on any towers it could also cause problems like that.
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DocHoliday77 said:
Do you get different results during different times of day? Could be network traffic. Or if they're doing work on any towers it could also cause problems like that.
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Click to expand...
Click to collapse
Indeed tmobile is upgrading their hardware and adding towers now that their LTE is spreading to more cities. Also since the merger didn't go through with At&t they are upgrading to compete in general.
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No same results at any time of day and i also noticed it did start happening until i flashed the t999uvdmd5 but since then used different ones but same results
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Call support to see if they are working on the network in your area.
If not, try the other modems in my baseband thread.
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[Q] No service at work. Any help?

Ive noticed since I moved offices, that in my office building I get absolutely no service whatsoever. And there is no wifi password available to use wifi via my phone. So today as I was leaving work and finally got service again, I had 12 missed calls, 5 texts, and 3 voicemails. Is there a better modem to flash that can help? Thanks!
Not exactly. Different locations have different best modems. You just have to try them and see.
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Could anyone suggest an updated modem, or one they have had luck with if they are from the Chicago-land area?
You could check the map in the modem thread too. I know its a jumbled mess now, but the info can still be useful.
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yeah, i was trying to find my way through it but it is difficult so it hasnt really helped
K. Sorry bout that. Ill be redoing everything in it soon though.
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Do you think you could message me about what modem/radio might work better once that forum is sorted out? It really sucks not being able to use my phone at work for 8 hours. Thanks
I may not be able to unfortunately. I messed around a little before and got nowhere. May have to start a new map.
Have you checked T-Mobiles coverage map yet? There just may not be a signal there in the first place.
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DocHoliday77 said:
I may not be able to unfortunately. I messed around a little before and got nowhere. May have to start a new map.
Have you checked T-Mobiles coverage map yet? There just may not be a signal there in the first place.
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Click to expand...
Click to collapse
I never had a problem with my Blaze there. Even at home with the S3 I get maybe 2 bars. Which leads me to believe its the modem. On my Blaze I had an updated modem that made data very fast.
Can I use UVLI6 which is a 4.1.1 modem on a 4.1.2 rom I am currently using? Would that be compatible? i cant remember which way compatibility goes :/
Any modem, any rom, any build. Only make sure you use the right models modems, which it sounds like you are
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itsLYNDZ said:
Can I use UVLI6 which is a 4.1.1 modem on a 4.1.2 rom I am currently using? Would that be compatible? i cant remember which way compatibility goes :/
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Click to collapse
It will work, but last time I did that I wasn't able to connect to hspa or hspa+ only umts.. If it gives you signal though I guess its better than nothing
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itsLYNDZ said:
Can I use UVLI6 which is a 4.1.1 modem on a 4.1.2 rom I am currently using? Would that be compatible? i cant remember which way compatibility goes :/
Click to expand...
Click to collapse
You can use any modem version as long as it's specifically for your phone.
itsLYNDZ said:
Can I use UVLI6 which is a 4.1.1 modem on a 4.1.2 rom I am currently using? Would that be compatible? i cant remember which way compatibility goes :/
Click to expand...
Click to collapse
And just in case for some reason you need to hear the same answer a 4th time, yes you can do that! LOL!
serio22 said:
It will work, but last time I did that I wasn't able to connect to hspa or hspa+ only umts.. If it gives you signal though I guess its better than nothing
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Click to expand...
Click to collapse
This is just strange... in roughly a year of doing this I think you're the first to report that happening. 4.0.4 and 4.1.1 modems have always worked on 4.1.2, and any other combo has worked as well. There are people who still use the LH2 (ics) modem because it still performs better than any other for them.
I think you may have been seeing it function normally though. When idle, its supposed to drop to UMTS to save power and bandwidth. If you check while a transfer is occurring you will see it change to HSPAP.
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Has anyone else found another modem that they now use that gives them better signal/data speeds for their Tmobile T999? My work building is a complete dead zone for Tmobile, so I am hoping flashing another modem works. Otherwise, im not sure what else I can do.
I have to refer you to my initial response here. A modem that gives better speed and signal for me, might be one of the worst for you.
Just something to consider, you probably could test 2-3 different ones each day at work. Maybe more. If your main issue is signal, then flash, check service, if none then flash another right away. I could probably flash 5 different ones on a 15 min break if I was only looking for improved signal. Might be a better way than waiting for someone to tell you what worked for them, then testing only that the next day. Its your phone and your time though, so its your call. Just tryin to help
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DocHoliday77 said:
I think you may have been seeing it function normally though. When idle, its supposed to drop to UMTS to save power and bandwidth. If you check while a transfer is occurring you will see it change to HSPAP.
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Click to expand...
Click to collapse
Nope I know all about that.. it would never get to hspa, always umts, ran it for days and as soon as I switched to a jb modem I got hspa back
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serio22 said:
Nope I know all about that.. it would never get to hspa, always umts, ran it for days and as soon as I switched to a jb modem I got hspa back
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Click to collapse
So weird....figured you would know, but wasnt certain. Still, never heard of one doing that. Finicky huh?
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I use the UVMD5 modem and my signal is strong but my battery dies faster...
DocHoliday77 said:
So weird....figured you would know, but wasnt certain. Still, never heard of one doing that. Finicky huh?
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Click to expand...
Click to collapse
Yeah it is weird.. I tried with both touchwiz and aosp with the same result
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