[Q] galaxy s5 gsm mode fix - Galaxy S 5 Q&A, Help & Troubleshooting

Hello, I have a Samsung Galaxy S5, and I can't get the sim to register on network, on GSM mode, but it works just fine on WDCMA, or LTE, and I need the GSM mode at home, because 3G network is only available outside.. I checked the sim into another phone, it works fine on GSM mode, so it's something about my phone... not the sim... can anyone help me solve the problem ? do you have any ideas?
by the way, I tried with many firmwares by now, 4.4.2 and 5.0 ... and still nothing

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[Q] Cant use GSM ONLY

I have Samsung Galaxy S5 (SM-G900F) from Ireland O2, i use it in Lithuania with SIM BITE LIETUVA. I can't choose GSM ONLY in settings, why?
With this SIM in other phone everything is fine, but in S5 i can't use it.
I try flash my S5 with ODIN into other country, but ODIN show FAIL, i only can flash with my stock firmware.
So what i must to do that GSM ONLY show up?
*#*#4636#*#* - don't work for me, i don't know why.
Help me.

Galaxy S5 G900W8 cant enable LTE (ex. Wind Mobile phone)

Hi there,
Im not sure if this was discussed about this particular situation.
I recently switched from Wind mobile to Fido which offers LTE connection. Unfortunately Wind disabled Lte network mode And the only mode I can connect to is 3g.
I have rooted the phone and tried various methods on how to enable LTE
including guide on xda how to enable all bands.
The only thing i have not tried is flashing new modem firmware.
Here is my question:
1. Would flashing new modem firmware enable lte network mode?
if so which modem firmware should i use and is there a guide?
2. Would upgrading to new rom solve the issue?
Please help me, thank you for any suggestions.
Senya
Anyone?
U can use videotron or Unknow Firmewire on Sammobile u will get LTE enable already

[Q] Note 3 cant registred on gsm network

Hy to all. I have promblem with my note 3 n9005. Phone cant register on gsm network. Phone can find network buth cant register on gsm. Note is rooted, istalled busy box, stock 5.0 loli pop. Phone can be registred only on 3g networ, buth 2g dont work. I try to flash stock 4.4.2 with modem and bootloader, flash modem for loli pop but issue is stil here. Any solution???

galaxy s5 sm900f doesn't connect to 4G :/

hello guys im having an issue a long time ago with my phone because it doesnt want to get conected to 4G the symbole has never showed up in neither the 4g or LTE my samsung is s5 sm900f lte is avaible to choose on network my sim card is a 4g sim i'm in morocco my operators is meditel they said thebands aren't activated and ive tried the *#0011# but the next menu to chose network bands doesn't show up i'm a litel puzzled here i'm running on andoid 6.0.1 can anybody help me please ? and do i need to root my phone to do something to force th 4g to work thank u guys cheers

[HELP] WCDMA Not Working On G530T1

Hello. I got a fairly used G530T1 MetroPCs. Calls and data works fine, only problem is 3G(WCDMA) won't work. If i change preferred network settings to WCDMA Only, the network signal goes off totally. I've flashed most stock ROMs and custom ROMs i can find here, but the problem still persists. The SIM works fine on other phones, so it is not the SIM card. I have tried other SIM cards too, still the same problem.
Anybody with a workaround or a fix should kindly help me out. Thanks
My G530T (T-Mobile) doesn't connect to 3G or 4G, only to LTE. I think that's just due to the hardware.
iamwhizkid said:
Hello. I got a fairly used G530T1 MetroPCs. Calls and data works fine, only problem is 3G(WCDMA) won't work. If i change preferred network settings to WCDMA Only, the network signal goes off totally. I've flashed most stock ROMs and custom ROMs i can find here, but the problem still persists. The SIM works fine on other phones, so it is not the SIM card. I have tried other SIM cards too, still the same problem.
Anybody with a workaround or a fix should kindly help me out. Thanks
Click to expand...
Click to collapse
ON PHONE
DIAL *#2263#
LTE Baseband Preferred
ALL
Turn on Airplane mode
Turn off
Violaa Worked 100000...% Tested by Sireal
iamwhizkid said:
Hello. I got a fairly used G530T1 MetroPCs. Calls and data works fine, only problem is 3G(WCDMA) won't work. If i change preferred network settings to WCDMA Only, the network signal goes off totally. I've flashed most stock ROMs and custom ROMs i can find here, but the problem still persists. The SIM works fine on other phones, so it is not the SIM card. I have tried other SIM cards too, still the same problem.
Anybody with a workaround or a fix should kindly help me out. Thanks
Click to expand...
Click to collapse
I thought that the MetroPCS version didn't come with WCDMA support. Many devices only support GSM, and because this device was never meant to run on WCDMA networks (Metro is GSM only), you might not be able to have these bands. However, if this is not your main device, and the phone is unlocked, you could try flashing an odin file for another version of the Grand Prime. MAKE SURE that your grand prime has the same chipset as the file your flashing, as some grand prime devices have a different chipset. Also, you might have to use a patched version of odin, which is all over xda.

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