Database Users

[Q] No gsm signal sgs2.

I have been using the fone for 3 weeks and now it lost gsm signal. Gps, wifi working fine. It is simlock free, firmware upgraded to latest, few factory resets still no luck. The signal icon shows normal signal but when you trying to ring it tell " mobile network not available" Many sim cards checked - nothing Is there any trick?
thank you

qwojtus said:
I have been using the fone for 3 weeks and now it lost gsm signal. Gps, wifi working fine. It is simlock free, firmware upgraded to latest, few factory resets still no luck. The signal icon shows normal signal but when you trying to ring it tell " mobile network not available" Many sim cards checked - nothing Is there any trick?
thank you
Click to expand...
Click to collapse
what was the last thing u did to the phone before it started to lose signal

I did nothing am basic usher. No dropped, no experiments. Two days ego wake up and i cant ring.

Firmware upgrade official via Kies .??? Or Samsung stock firmware via Odin .
Correct CSC in phone for your country likewise correct modem.
jje

It happened before upgrade, after upgrade no changes i did it via kies samsung stock firmware. I bought it in England i live in England. What that is CSC ?

Check with your network to see if the IMEI has been blocked. I've had this happen - it was an error on the networks part.
EDIT: ...I say network, but it was the the third party that provides the block list that really made the mistake (it was blocked on all networks for 2 weeks!)

qwojtus said:
It happened before upgrade, after upgrade no changes i did it via kies samsung stock firmware. I bought it in England i live in England. What that is CSC ?
Click to expand...
Click to collapse
CSC = country specific codes . dial *#1234#
I would return to seller .
jje

[Q] 3g and 4g Signal lost when screen off

Hi,
First, some information about my phone :
I9505 LTE
OLD Bootloader (and I want to keep it)
Modem tested : ME2 and MDF
Operator : Bouygues France
ROM : SHOstock-i v5.0
My problem now, since the installation of KitKat, I can't shut off my screen without loss my signal, but I only lost the 3g and 4g, when I force 2g only, I don't lost the signal. 3g and 4g are fonctionnals when my screen is on, everything work, I can call, send SMS, have mobile data (in 2g, 3g and 4g), but impossibe to shut off my screen without signal lost....
So should I try an other modem (if yes, wich one to keep old bootloader), or downgrade to 4.2 on my old stock rom ?

maximiliengolum said:
Hi,
First, some information about my phone :
I9505 LTE
OLD Bootloader (and I want to keep it)
Modem tested : ME2 and MDF
Operator : Bouygues France
ROM : SHOstock-i v5.0
My problem now, since the installation of KitKat, I can't shut off my screen without loss my signal, but I only lost the 3g and 4g, when I force 2g only, I don't lost the signal. 3g and 4g are fonctionnals when my screen is on, everything work, I can call, send SMS, have mobile data (in 2g, 3g and 4g), but impossibe to shut off my screen without signal lost....
So should I try an other modem (if yes, wich one to keep old bootloader), or downgrade to 4.2 on my old stock rom ?
Click to expand...
Click to collapse
Flash a 4.3 or 4.4.2 GSM modem only and that should fix your Dropping signal issue. Download the modem from here and check the Modem base from your Country/Provider from here. Have a nice day.

If I flash the MKF for exemple it will not install the new bootloader ? (it's the newer modem of my operator)
I've download the FNB8 modem, so the same number of my version, why there is a NON-HLOS.bin file in it ?

maximiliengolum said:
If I flash the MKF for exemple it will not install the new bootloader ? (it's the newer modem of my operator)
I've download the FNB8 modem, so the same number of my version, why there is a NON-HLOS.bin file in it ?
Click to expand...
Click to collapse
You can download and flash any GSM modem mate but dont flash any latest Wififix/nonhlos because you will loose your sound. Pls feel free to hit the thanks button.
Edit:For Old bootloader you can't flash any newer LTE/NON-HLOS/WIFIFIX modem than UBMH1.
" Sent from Hell "

I've flashed the XXUEMKF and it seems to work, I don't know if it's newer of UBMH1 or not, but everything seems ok
(and Thanks for your help )

maximiliengolum said:
I've flashed the XXUEMKF and it seems to work, I don't know if it's newer of UBMH1 or not, but everything seems ok
(and Thanks for your help )
Click to expand...
Click to collapse
Glad that help you mate Have a nice day.

Lost Signal after Lollipop update

Hi guys
My phone was rooted but never flashed a ROM on it. Today I updated my phone to Lollipop through Kies Mac. After that my signal is not there. When I reboot the phone I get signal for few seconds then it gets lost again. Also phone never saves my Wi-fi connections.
I did reset my phone but still the same.
It was locked to Vodafone and I unlocked it in Vodafone shop when I first bought it do you think anything related to that?
How can I downgrade to KitKat or get my signal working?

Same here. Do any of you guys know how to solve this issue?

PiskopatYazar said:
Hi guys
My phone was rooted but never flashed a ROM on it. Today I updated my phone to Lollipop through Kies Mac. After that my signal is not there. When I reboot the phone I get signal for few seconds then it gets lost again. Also phone never saves my Wi-fi connections.
I did reset my phone but still the same.
It was locked to Vodafone and I unlocked it in Vodafone shop when I first bought it do you think anything related to that?
How can I downgrade to KitKat or get my signal working?
Click to expand...
Click to collapse
nightmare3112 said:
Same here. Do any of you guys know how to solve this issue?
Click to expand...
Click to collapse
Please use the search function of this site and google, don't be lazy. There is a thread about downgrading . Also try flashing lollipop modem/bootloader, for this visit any of the TouchWiz Lollipop rom threads (like the one in my signature) most of them talk about flashing modems and bls.

[Q] I9505. No signal when using 3G/4G. 2G works

Hi.
After updating Danvh's lolipop-rom to the latest version, I lost my signal and wifi. When I force my phone to use 2G (GSM only) in network-settings, everyting works normal.
But of cource I want the speed of 3G and 4G when using internet!
Sometimes (not often) 3G works.
Sometimes the phone says it has signal, but calls, internett etc don't work
I tried to flash the latest modem (XXUHOC6), but no luck. Have also tried modem XXUGNK4, XXUHOB8 and XXUHOB7. I tried to go back to the older version of the custom rom, but no luck
I have now downloaded the latest official stock rom from sammobile. But same problem with stock rom.
Any suggestions?
I have IMEI

Sorry, I have the same problem and I am still searching for a solution. And I have been trying everything as you and no solution. Sometimes I think is a hardware issue.

Very frustrating :S
Hope to find a solution soon.
I dont want to buy a new phone yet. There is no other phones out there that I want

Recent unimagined issue with data network.

From couple of days I am facing a bit unique problem that whenever I enable my data into #GSM it shows h+ and runs 3g and after a while it auto changes into E from h+ and within a minute data network gets disabled.. And again it auto enable data and same process starts: h+ to E, E to h+ and disable / enable.. Network data gets disable enable automatically...

Maybe a provider problem
Hello and thank you for using Q/A,
did you try a factory rest. It can be a provider problem.
Kind regards
Trafalgar Square

How you recently update your phone's firmware?
If so, Its not really an unique problem, since I am experiencing the same.
With an OTA update to I9505XXUPOL1, my data connection was not working at all.
To fix my data connection problem, I have flashed I9505XXUHPA1, which was stable connection, but only E (gsm) connection, it has disable LTE.
Sources within this forum say that I9505VJUHOK1 (south america firmware) works properly, I have not tested it yet. If some can confirm please let me or us know.
I download my firmware from the sammobile website

Trafalgar Square said:
Hello and thank you for using Q/A,
did you try a factory rest. It can be a provider problem.
Kind regards
Trafalgar Square
Click to expand...
Click to collapse
Hehe... I think it occured after couple of master reset?

*IIhan87 I flashed 4.4.2 firmware long time ago and the problem occured now... My baseband is XXUGNH6. And it doesn't have lollipop firmware too if it had I would have tried latest firmware to solve the data network issue: (