[Q] I9305 stuck with EDGE and no 3G/LTE - Galaxy S III I9305 (4G LTE + 2GB RAM) Q&A, Help &

Long time lurker, first time poster.
Long story short, a friend gave me an I9305, however, I can't connect to a supported 3G network.
He had toyed around with the device (rooted, installed CM11), then reverted unrooted and reverted to stock firmware. When I got the device, I rooted it with Framaroot, flashed CWM 6.0.4.5, then flashed CM11 and Boeffla kernel. My SIM card was quite old and my carrier told that it doesn't support 3G, so I filed up for a new one. Ok, I got it, however..I'm yet again stuck on EDGE!!!
Tried reflashing CM11, CWM, flashed almost every radio baseband modem from here http://forum.xda-developers.com/showthread.php?t=2010116 to no avail. My IMEI is intact, as well as my Serial Number.
Yes, I read all threads, I tried going to Settings>Wireless&networks> More > Mobile Netwroks >Preffered Network type and checked all options. When I select 3G only, the icon goes to "H", but i can't access the web. After 10-20 seconds, the H icon dissappears and I'm forced to reboot the phone to regain my EDGE data.
At the moment, I'm running the latest Omni ROM nightly. My operator supports all 3G and LTE bands, and I got the correct APNs.
Should I flash a stock ROM and check if this does the job?
I'll greatly appreciate any help, because I'm stuck.

Wipe phone factory reset flash stock rom with modem and csc for your network.

JJEgan said:
Wipe phone factory reset flash stock rom with modem and csc for your network.
Click to expand...
Click to collapse
I can't check my csc code - whenever i type a code in the dialer I get "connection timed out or invalid mmi code". The only ones that work are *#06# and *#*#4636#*#*...

Ok, so I'm running a stock 4.3 rom and STILL have no 3G....tried everything.
Anyone, help?

Maybe if you can try to downgrade to a firmware 4.1.2 via Mobile Odin and then try and access the service mode menu. From there you may be able to enable the 3G/LTE DRX (Radio) which seems to remain a permanent change in the phone once you upgrade again to 4.3.

Related

[Q] Sudden Data Loss on JB Captivate

Hi, I was on HellyBean Rom, opened an account with Net10 BYOP and configured the APN settings, everything seemed to be working fine for a day or so, Then I decided to set a lock pattern on my security settings. after locking the device to try it out, it got stuck, rebooted and got stuck on the boot up animation (dimming on and of), never came out, so I erased everything and re-installed the rom. when i entered the same APN settings i didn´t get the data back, other than that the WiFi and phone seem to be working fine, I upgraded to the lastest HellyBean version, and now switched to the AoCP CP 4 Rom, all with the same results No Data! tried to toggle the airplane mode, verified the imei with the imei behind the battery.
Any ideas what could be causing this?
Thanks.
Try flashing a modem again. If that doesn't fix the problem, dial *#*#2263#*#* and make sure all or the required freq bands are selected.
uhm said:
Try flashing a modem again. If that doesn't fix the problem, dial *#*#2263#*#* and make sure all or the required freq bands are selected.
Click to expand...
Click to collapse
Thanks uhm, i flashed a new modem as suggested, actually thanks for that I got better reception at home, but apparently that dindn´t fix the data network, then i tried to dial *#*#2263#*#* as soon as i dial the las * the whole number dissapears but i dont get any menu.
Any extra help would be appreciated, this is the first time I go into the modem updates/options.
Try flashing a gb stock rom like uckk4 from the master thread and then flash corn kernel tar so that u have cwm recovery too. Then flash the rom you want from cwm recovery menu. You could try data connection in stock rom before flashing another rom.

[Q] mobile network not vailable ... help needed !!!

hi,
i upgraded my phone to 4.2 jelly bean slim rom . calling and other things were fine . but from tommorrow i am facing this problem.
in settings=>about phone=>status it's showing my network name and signal strength-64dBm 25 asu . my network is not 3g or 4g .
but my signals are white ( no signals but sim present and detectable) cant call . whenever i try it says "mobile network not available".
after this i checked my sim in other phone . it is working fine.
i put sim from some other network in my sgs but same problem
i flashed the same rom to fix it but no good
i flashed back my ics rom , no good
i did factory reset , but problem is still
i am using this phone for past 2 years and this problem never occoured.
PLEASE HELP ME .
there is some problem with the 4.2 rom or whatever, but you easily fix the calling part by installing another modem.
in my case I can't get the sms to get working, tried 3 modems already.. everything else is super fine.
I had a similar problem where I had no reception! Easy fix though
1. Find online your specific carrier ROM for the phone, (eg. AT&T SGS1 ROM) and flash it, firmware can be what ever (gingerbread, eclair, ICS)
2. Flash your carrier ROM, you may not pass boot screen but that's alright because the carrier ROM still embeds all carrier info.
3 Now re flash your jb ROM and enjoy
Hopefully this helped you out
Sent from my GT-I9000 using xda app-developers app
abubakarce19 said:
hi,
i upgraded my phone to 4.2 jelly bean slim rom . calling and other things were fine . but from tommorrow i am facing this problem.
in settings=>about phone=>status it's showing my network name and signal strength-64dBm 25 asu . my network is not 3g or 4g .
but my signals are white ( no signals but sim present and detectable) cant call . whenever i try it says "mobile network not available".
after this i checked my sim in other phone . it is working fine.
i put sim from some other network in my sgs but same problem
i flashed the same rom to fix it but no good
i flashed back my ics rom , no good
i did factory reset , but problem is still
i am using this phone for past 2 years and this problem never occoured.
PLEASE HELP ME .
Click to expand...
Click to collapse
See how your IMEI is now something like 00499....? The phone's generated a fake IMEI (which allows you to use the telephony functions such as data, SMS etc) because its lost the real one.
1.) Go back to a stock 2.3.6 rom using Odin. Your IMEI should be back to what it was, but check it just to make sure. However if you're able to send texts/make calls/use data again, your IMEI's been restored.
2.) Root it again.
3.) Flash in CM9 first (do the standard wipe data/cache/Dalvik). Let CM9 boot. To upgrade to Jelly Bean from Gingerbread, you need to flash in ICS (CM9) first to preserve the IMEI. Once CM9 has booted (you don't need to stay on it for too long), if you see that you're getting signal, you're all goods. But check your IMEI just in case you want to be sure it worked.
4.) Back into recovery. Wipe combo (data/cache/Dalvik) again just in case. Install Slim Bean from there.
5.) Once it boots, you should be getting signal as usual. Once again though, if you really want to make sure, check your IMEI.
Sent from my GT-P7510 using Tapatalk HD

[Q] T-Mo Note without signal, help!

Hello, I have this SGH-T879, It had the stock 4.0.4 firmware, but I flashed the SGH-T989_UVLE1_radio to unlock it via service menu, but now I don't have signal, right now i'm running CM10.1 and tried to flash multiple modems but still don't get GSM signal, i have Tmo_SGH-T879-UVLG3_radio installed right now but still it's not working, it says NO SERVICE. - TELCEL (my carrier), even it shows me the Voicemail icon, but what I need to do? I'm searching everywhere the stock odin file for going back completely to stock, but all the links are expired, help me please. And I don't know if KIES is usefull but I don't know if its possible to use it in this case.

keep losing data, is there a baseband update?

For a while now my galaxy note has been losing mobile internet.
Ive noticed that data just stops working, sometimes i will lose the letter indicator is (H or 3G) but i can still make calls. Other times the indicator will still be there but data wont work. This happens maybe once every couple of days
I know its not the rom as it happened when i used slimbean and also happens on cyanogenmod.
I know its not the carrier as it happened when i was with T Mobile up until last month. Im on Three now and it does it just as much.
to rectify it i have to either switch off data then back on, if this doesnt work, i try aeroplane mode, if thise doesnt work i have to reboot the phone. If i reboot then data comes back straight away.
I wondered if an upgrade to the baseband would help. im on N7000XXLT3. my phone is unbranded and unlocked and was originally on TMobile when purchased.
I found this article:
http://androidromupdate.com/2013/07...xxlt9-landed-in-uk-samsung-galaxy-note-n7000/
which states
Select the exact stock firmware file according to your country of origin.
Unbranded Stock 4.1.2 N7000XXLT9 Firmware:
N7000XXLT9_N7000OXXLT3_XEU.zip - United Kingdom, Ireland
Click to expand...
Click to collapse
is this the rom i need to flash? i realize this will take me back to stock.
can i expect any trouble flashing this rom? ie brick?
thanks
try the XXLSO modem.
nokiamodeln91 said:
try the XXLSO modem.
Click to expand...
Click to collapse
any pointers?
What do you mean? There is a thread about modems.. Just search in Google for all radio n7000. Get the xxlso modem and flash it from recovery.

Blcoked or Bad downgrade?

Ok a friend of mine brought me a i9305 lte to unlock as i have done several of my firends. so i did these steps
1. made a back up from QPST
2. Cf auto rooted
3. installed custom recovery
4. downgraded to 4.1.1
5. did the network unlock from service menu
i then put my sim card in but kept getting not registered on network. i tried setting service provider to auto and also selecting manually and it does the same but no longer asks for sim unlock code so i assume its now unlocked and has some other problem. i thought it may be a imei issue and checked but the imei is fully there and matches the one behind phone batter it also has the correct baseband.. i checked in the about phone menu and it says network unknown and out of service. thinking it may be a radio issue i proceeded to install a stock 4.3 that was originally on the phone from the network carrier it was originally locked to, to see if it was a radio problem but again get network unknown. so i restored the QPST backup over the stock 4.3 and it still says network unknown.
I am starting to think the phone may be blocked but not sure as i also hear its a common problem to lose imei and / or service during rooting. Am i missing something pbvious or fighting a losing battle lol..
one other thing of slight note is when i went to sammobile for the stock rom, when i was searching i searched for i9305 as thats whats on the sticker but it has a little badge on the back that says LTE which according to sammobile is the i9305N and i9350T.
thanks for taking the time to read this and the help you guys allways offer :good::good::good:

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