No signal. - LG Optimus Black

Hello. Before few days i was on zeus 6.4o and sudenly there was no signal.(red x on status bar). Tryd re-insert card but that did not help.
Today i flashed zeus 1.1 and started to work for few mins but then again...signal lost. Waited and then signal come back for few minutes.
So...my phone has singal for two mins and then dose not for 30 min, Its not carier/provider problem....anybody with same carier have good signal.

Update...i can get weak signal in wcdma...
gsm and gsm/wcdma (auto mode) dont work. Whats wrong with my phone?

have you flash your good country baseband , check your apn carrier settings

What i need to check in apn settings? ive never flashed baseband. Any tip /guide please?
and big thxs.

you need check apn settings :
APN :
MMSC :
MCC :
MNC :
Type d’APN :
flash baseband , you need .fls for your country and use Smart Flash tool => http://forum.xda-developers.com/showthread.php?t=1448803
for extract .fls : use lgrom converter => http://forum.xda-developers.com/showthread.php?t=1692191
and stock rom .kdz => http://lg-phone-firmware.com/index.php?mod=Lg+Optimus+Black&paese=Tutti&id_mod=1
then it's possible hardware

sadly my phone is useless... GSM dont work after baseband flash /rom change. WCDMA works slightly but drains battery like hell. Now i can use p970 as tablet camera,wifi,apps,movies and music.
Think that its hardware problem....before few days i was so drunk that i felt down on the ground. Maybe thats the reason why it dont work.
p.s APN settings are fine...

Related

[Q] Radio: unknown

My phone will not connect to the network, wifi seems to work ok.
According to bugreport my radio is unknown, is there anyone that can point me in the direction of a working radio for norway. or am i stuck calling LG for "paid service".
Build: FRG83G
Bootloader: unknown
Radio: unknown
Network: (unknown)
Im running CWM recovery.
Attached bugreport below.
dl{dot}dropbox{dot}com/u/8305657/BUGREP.TXT
could not post link so decode it please
Reflash baseband?
Sent from my LG-P990 using XDA App
Tried that from the guide and files fund http://forum.xda-developers.com/showthread.php?t=1008070
Reflashing full rom trough nvflash
Trying now, will check back after...
Did not work for me, however i made a discovery.
There is now two mode's for my network, GSM and WCDMA
and here in europe we usually use GSM/UTMS is there a UTMS radio out there ?
If i set the phone in GSM only it works.
EDIT: It did not acctually worked, just gives me signal strenght, dailout and sms still not work.
lonix said:
Did not work for me, however i made a discovery.
There is now two mode's for my network, GSM and WCDMA
and here in europe we usually use GSM/UTMS is there a UTMS radio out there ?
If i set the phone in GSM only it works.
EDIT: It did not acctually worked, just gives me signal strenght, dailout and sms still not work.
Click to expand...
Click to collapse
I believe UMTS is the common name for WCMDA.
oh, ok.
i still cant figger out why i cant flash my god dam radio.
So i guess ill just have to nvflash it back to stock a cupple of times and try to blame it on the "OTA"

[Q] [Droid3 xt862] don't find any GSM signal

Dear All
I 2 months ago buy a droid3 xt862 to use in EU (in poland) and all was ok
they find lot of gsm networks signal was ok... to yesterday
I wanted to check something in *#*#4636#*#* and i change
in Phone information / set preferred network type -
from GSM auto (prl) to WCDMA preferred
I change it back to GSM auto (PRL), but now phone dont see any GSM
network, still see SIM card but when is instaled and when is not..
I flash once again the phone, do a factory reset in recovery.. and still nothing..
img268 . imageshack.us/img268/1258/droid3global . jpg
please if somebody have idea how to help me .. pls
**UP**
Maybe will be usefull for somebody
I fix the problem, i used moto-fastboot.exe and re-flesh the radio.img
now again all works perfectly GSM / 3G etc ,
Thanks for that info!

No Signal

Hello everybody i have big problem i yesterday install JellyBam v7.0.0 on my Galaxy S and now i not have signal when i flash rom i have signal for a
1 minut than i lost signal and nobody can't call me i can't call other people what i most do i write post on offical forum on jellybam but says maybe modem is wrong but i download modem and try with CWM but says installation aborted please help me i don't have signal
Are your APN Settings ok, have you checked them ?
EwOkie said:
Are your APN Settings ok, have you checked them ?
Click to expand...
Click to collapse
Yes i check the APN and all is OK!when i have turned on 3g i have signal only when i turn off 3g i lost signal
Could be that your area signal isnt that great on 2G network when 3G is off.. try another modem
hello i had issues last week i lost data connection i flashed all different roms trying to fix it ,i think its sorted now i flashed XXJVU stock rom then darky 10.2 re then i flashed cm9 then darky v11 then cm10 then thinkbridge 4.2.2 working well so far if its just your signal try 10. 2 re first
the best reason why it happen because the ROM or FIRMWARE that you installed in your samsung galaxy s is not compatible some firmware and roms are only allowed in a specific country because it contains MODEM that makes your cellphone to have a signal on what country you are in OR the Samsung Galaxy S that you have is only for certain country only like my Samsung Galaxy S SC-02B which is NTTDocomo which has 2.2 froyo firmware when i upgrade it to higher firmware such like jellybean or icecream it successfully upgraded but you cant use the cellphone 100% since the signal will lost because your IMEI is fake or your IMEI is none. check your back of your samsung to check the right IMEI.
SOLUTION:
downgrade your phone back to its original firmware and rom make sure it is the original!
and you will see it will back to its default settings your signal is back so as your IMEI
I am using Hong Kong Modem and I am in the UK with Full Signal and better performance
All Modems will give a signal ..but depends on area that you are in
Flash 2.3.6. Then Root it ...this will put all files back to the way they where..
In your APN settings scroll down to the Authentication Type and make it PAP if its Default for both ..reboot phone if that helps

S3 lte i9305 no 3g 4g only 2g wokring help

Got strange problem in my s3 lte.i cant any 3g or 4g service.only 2g is working..
tried hard reset etc but no fix..any idea how to fix it..?
please help
Lack of information posted .
jje
its just shwoing E and not 3g or H or 4g etc ..
i can make phone calls txt etc perfectly just not getting 3g 4g service.
its on 4.1.2 rooted via cf root..
its showing imei number basebacd etc..
dont know what more i have to say about fault..?
silverbox750 said:
its just shwoing E and not 3g or H or 4g etc ..
i can make phone calls txt etc perfectly just not getting 3g 4g service.
its on 4.1.2 rooted via cf root..
its showing imei number basebacd etc..
dont know what more i have to say about fault..?
Click to expand...
Click to collapse
Did you try Settings -> More Settings -> Mobile networks -> Network mode, set it 4G only or auto connect.
Another workaround maybe there's problem with your apn's? For example I had it set to MMS then ahd EDGE available only.
Second warkaround is secret menu, type it in dialer *#0011#.
how to set up MMS then ahd EDGE available only?
and i typed ?*#0011# and its showing
gsm900 available
mcc-mnc ; 234-10
tra ;120 bcch 120 cid 276c
rx pwr 85 dtx
txl 0 rx q 7 txl 0
speech ver amr efr fr
voc adaptive rate
ts 0
therm 130 lna 0
silverbox750 said:
its just shwoing E and not 3g or H or 4g etc ..
i can make phone calls txt etc perfectly just not getting 3g 4g service.
its on 4.1.2 rooted via cf root..
its showing imei number basebacd etc..
dont know what more i have to say about fault..?
Click to expand...
Click to collapse
Missing what firmware modem and CSC
Firmware virsion 4.1.2
build number @ jz054k.i9305xxbll5
csc @ i9305evrbll1
henrylife said:
Did you try Settings -> More Settings -> Mobile networks -> Network mode, set it 4G only or auto connect.
Another workaround maybe there's problem with your apn's? For example I had it set to MMS then ahd EDGE available only.
Second warkaround is secret menu, type it in dialer *#0011#.[/QUOTE
My GT-i9305 LTE doesn't detect GSM network automatically I have only 2g service in my country, my phone does not connect to GSM automatically, i have to set it on GSM only every time i restart my phone it does not stick on GSM only, whenever i restart my phone it will switch to LTE/GSM/WCDMA/ auto mode but doesnt connect to GSM i have tried many ways wouldn't fix it.
It will be great if any one can help me i have tried to install another modem but couldn,t find any, I rooted it tried to install some customs modems but no success i had to flash it with old firmware
phone info
Galaxy s3 i9305 LTE
firmware 4.1.2
baseband i9305xxalk2
build number i9305xxbll5
need you help
Click to expand...
Click to collapse
I have exactly same problem with silver.. Have you fixed it? I have tried to fix problem some, but nothing looks like gonna fix it...
I have tried everything that was written on the forum..
When I check *#0011# it shows that only GSM900 is available...
Anybody?
Have you tried changing it to WCDMA. I was having that problem with the 3g service not going above a few kbs, I changed it from gsm to WCDMA nd its back to full speed 3mbs.
M.IMRAN said:
Have you tried changing it to WCDMA. I was having that problem with the 3g service not going above a few kbs, I changed it from gsm to WCDMA nd its back to full speed 3mbs.
Click to expand...
Click to collapse
Yep, I did. Both on the phone menu and service menu. Doesn't take any 3g or 4g signal if I choose em only.
Wipe phone flash correct stock rom . Check modem check IMEI
JJEgan said:
Wipe phone flash correct stock rom . Check modem check IMEI
Click to expand...
Click to collapse
Done, still same.. I have both tried with Cyanogen, Liquidsmooth, Stock rom, Ripper rom...
Stock rom with correct modem and APN not working then take it to a service centre .
jje
Rethua said:
Done, still same.. I have both tried with Cyanogen, Liquidsmooth, Stock rom, Ripper rom...
Click to expand...
Click to collapse
Where did you buy it?. Did you see if the modem frequency of the carrier it's available in your phone?, I got the same problem and it's possible that my phone doesn't have the hardware ready for the carrier in my country. I still looking for an answer.
fabav said:
Where did you buy it?. Did you see if the modem frequency of the carrier it's available in your phone?, I got the same problem and it's possible that my phone doesn't have the hardware ready for the carrier in my country. I still looking for an answer.
Click to expand...
Click to collapse
This is I9305 specifications are not new .
Check your network before purchase as hardware is not flash able .
http://en.wikipedia.org/wiki/Samsung_Galaxy_S_III#Model_variants
Same problem
This NVM problem new HW and old nvm I got imei repair or unlock.
That's how I went, 20 managed to fix it, but this is not the last one because it is very new.
2-3 week old phone.
Looking for new NVM and efs backup.
Hi
I have a same problem only 2G network ...
i9305 in 4.3
behind the bug i wan't to unlock phone with Z3X box and i downgrade to 4.1.1 and unlock
but after that il lost 3G and 4G network
do you find a solution
thanks a lot
AP I9305XXUEML8
CP I9305XXALI9
CSC I9305OLBEML6
in french network
I reperair box nspro working 100!
Wysłane z mojego GT-I9305 przy użyciu Tapatalka
strpio said:
I reperair box nspro working 100!
Wysłane z mojego GT-I9305 przy użyciu Tapatalka
Click to expand...
Click to collapse
OK thanks i have just Z3X box ....

PLS help :(

Hi i have an s3 LTE telstra i9305 and i flashed it with a few roms and now it wont connect to telstra network .
If i flash the stock rom does it flash the modem back to stock aswel
I get the little bars up the top and it actually finds testra in the network list but gets an error when i goto register on it
the error is something like this sim is not compatible on this network
as i type this im flashing stock rom so i will try it again and give the right error soon thanks
p.s does the stock rom flash bootloader and modem ???
IMEI
first 4 of my IMEI is 3547
hades302 said:
Hi i have an s3 LTE telstra i9305 and i flashed it with a few roms and now it wont connect to telstra network .
If i flash the stock rom does it flash the modem back to stock aswel
>>>>Flashes whatever modem is in the firmware .
the error is something like this sim is not compatible on this network
>> Change sim .
Suggest you manually add your networks APN settings and read the faqs and guides before flashing anything .
Click to expand...
Click to collapse
If its the original rom for my phone shouldnt the APN setting be already set and when i go into the settings to change them they are all none selectable all blanked out you can see the setting but cant change them.
APN - telstra.wap
MCC - 505
MNC - 01
APN type - default,supl
Protocol - IPv4
all other setting say NOT SET
worked it out my sim card has died for some reason

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