No 3G after motherboard replace - Galaxy S 4 Q&A, Help & Troubleshooting

Hi all after wifi not working anymore I bought a refurbished motherboard for my 9505 LTE version. After replacing it wifi is working great but I can't seem to be able to connect to 3G. In info menu (*#*#4636#*#*) I read -voice network: GSM and -data network: EDGE, no matter what I set in preferred network type. I contacted phone company (3 Italy) and they say mi sim card is correctly registered on the network and I should get at least H+.
Tried all the latest modem/bootloader avaiable, now I am on I9505XXUHQC1 (GSM/NON-HLOS COMBINED).
Also tried manual network selection and I can only have signal if I set 2G as preferred network type in Settings-WiFi and Mobile-Mobile network.
Any ideas?
Thanks

Related

3g problem

hy.i have a android note 2(feiteng h7189) dual sim phone.the problem is that i can't get acces to 3g network.all my setings are god but still nothing.on internet i only have 2g conection.for vodafone when i put network on 'wcdma only' i loose signal.on orange i can use wcdma but internet is 2g only.i use reset,service mode but nothing worked.if anyone can help pls...Thanks
casian85 said:
hy.i have a android note 2(feiteng h7189) dual sim phone.the problem is that i can't get acces to 3g network.all my setings are god but still nothing.on internet i only have 2g conection.for vodafone when i put network on 'wcdma only' i loose signal.on orange i can use wcdma but internet is 2g only.i use reset,service mode but nothing worked.if anyone can help pls...Thanks
Click to expand...
Click to collapse
First of all, if you haven't done it already, put the "gsm/wcdma" (or something similar, it has to have both of them anyway) setting on mobile networks. If you still can't get 3g, try searching for all available mobile networks. When the search ends, select a 3g network according to your carrier (e.g. vodafone 3g if your sim is vodafone).
i think the problem is with with band.in phone description it sais GSM 850/900/1800/1900MHz(2G) - WCDMA 850/2100MHz(3G),but in mtk engineer i can't select wcdma 900 and wcdma 2100 doesn't apear(band for 3g for vodafone) so i think this is motive i can't conect 3g.can i do somthing about that??

[Q] [i9505] data connection on 2g (edge) only, 3g and lte doesn't work at all

Hello,
I upgraded my plan to one which includes LTE data transfer. When I turn on mobile data connection (with data roaming allowed) phone connects only to 2G EDGE network. There is no way to connect with 3G/HSPDA/LTE despite good signal and proper settings (preffered network type, apns etc). I've tried:
- few different modems/radios: XXUHOB7, XXUHOB8, XXUGNG8,
- few roms: stock 4.4.2 I9505XXUGNG8_I9505YXZGNH2_XEO, CyanogenMod 12, CyanogenMod 11, I9505_-_Official_Google_Edition_5.0.0_by_Jamal2367_Stable-R2.1 and JFLTE-GPE-20150315
With no luck. I didn't used data connection a lot before so I can't say when the problem started to occuring. I tested my SIM card on different phone and LTE connection works... I attached screenshot from "Advanced Signal Status"
Do you have any ideas how to solve this issue?
Thanks!
same error here!
any solution??
wjtk said:
Hello,
I upgraded my plan to one which includes LTE data transfer. When I turn on mobile data connection (with data roaming allowed) phone connects only to 2G EDGE network. There is no way to connect with 3G/HSPDA/LTE despite good signal and proper settings (preffered network type, apns etc). I've tried:
- few different modems/radios: XXUHOB7, XXUHOB8, XXUGNG8,
- few roms: stock 4.4.2 I9505XXUGNG8_I9505YXZGNH2_XEO, CyanogenMod 12, CyanogenMod 11, I9505_-_Official_Google_Edition_5.0.0_by_Jamal2367_Stable-R2.1 and JFLTE-GPE-20150315
With no luck. I didn't used data connection a lot before so I can't say when the problem started to occuring. I tested my SIM card on different phone and LTE connection works... I attached screenshot from "Advanced Signal Status"
Do you have any ideas how to solve this issue?
Thanks!
Click to expand...
Click to collapse
It really depends on what bands your carrier is using. For example, in romania, we have a carrier (digi mobil) that has 4g signal only on the tdd 38 2600mhz band, a band that our phone (i9505), doesn't support.
You should look into your carrier bands, get info on what bands are they currently using and then see if they coincide with the bands that your phone supports. What variant do you have and on what carrier are you on?
Is your phone showing the correct imei?
audit13 said:
Is your phone showing the correct imei?
Click to expand...
Click to collapse
How do i know if my imei is "correct"? I checked my imei and i inserted it in a site and i found the specifications of my phone as they should be, but my 3g and 4g are completely dead.
Does the imei in the phone match the imei on the label under the battery?

[Q] D802 Not connecting network

My new LG G2 D802 seems to only want to conect to GSM, if I have it set to any other setting like GSM/Wcda auto, or LTE etc it wont even connect to GSM let alone the other networks? To be clear i can use the phone set to GSM, but not when set to the other settings, just keeps searching for network
I am in New Zealand on Vodafone network which is
2G - 900/ 1800 MHz GSM, GPRS
3G - 900/ 2100 MHz UMTS, HSPA, HSPA+, DC-HSPA+
4G - 1800 MHz LTE
so I think the phone should connect shouldnt it? I am in 3G/WCDA coverage (not in 4g currently to try)
Any ideas?
the phone is stock rom, rooted, Xposed etc, Kitkat 4.4.2
Thanks
Edit, I just clicked network operators and searched and it came up with Vodafone Gsm which i have selected. So i take it my phone cant see a 3g network?
I think I have solved it. I went into the hidden menu and changed the modem settings to my carriers frequency instead of auto. So fingers crossed. II havedone a reboot and it is still working too.
So I had 3g for the day or so and then its gone again, I tried my wifes sim card which is on a different network and seemed to work, so i will get a new sim card for myself and hopefully be ok. my current sim card works ok in her phone, it just struggles to find 3g in mine for some reason.
Got a new sim card now but it still struggle to find 3g maybe because I'm not in a main town centre but I should still have service here as I am in there coverage area and my wife gets coverage on her phone
Tried updating to lollipop but problemremains. It is disconnecting maybe because of poor 3g reception but then struggles to connect to 2g again. Only solution to have working phone is ro have it set on gsm only all the time. Not good

Messed up my radio settings on N9100 with *#*#4636.

My Note 4 does not allow to latch to 2g network when 3g is available.So I changed the settings in device info *#*#4636#*#* accessed via Advanced Signal Status. The problem is that i am no longer able to switch to hspa/3g preferred,/LTE/GSM auto back and even edge does not work when data is enabled for operator1 and 2 ON SIM1 .Data works when switching to SIM2 for operator 1,2 or 3.The problem is on two different 3g enabled sims of airtel and bsnl (already checked the sims on other phone). While 3g hspa works without any problems with a different hspa aircel sim(operator 3). This makes me believe the modem sim1 has not lost functionality to use hspa/edge.
Tried -
1.Clearing cache and data of several different system apps related to settings and network but nothing happened.
2.Factory reset
3.Kitkat 4.4.4 Rom flash via odin.
4.Lollipop 5.0.2 Rom flash via odin.
After Googling a lot : I think the problem is : the phone is not able to connect (establish a data connection ) on hspa so reverts back to UMTS for Operator 1&2 (BSNL & Airtel) . As far as i know UMTS does not allow data connection. I cannot understand why hspa/hspa+ still works for operator 3 (Aircel) . When i changed my settings from WCDMA Preferred to GSM only i was on operator 1 (BSNL) . When i tried reverting back to WCDMA preferred it switches momentarily to HSPA then tries to establish a data connection and reverts back to UMTS. Same behaviour is for operator 2 (Airtel). Both operator 1 &2 works with GPRS on SIM2 and EDGE (when change to GSM only with Advance Signal Status) on SIM1 . When not in "GSM only" mode it locks to UMTS and no data connection is established.
SAME BEHAVIOUR IS ON LOLLIPOP EXCEPT

s7 edge is having trouble with TMobile's LTE mobile data

So I recently purchased s7 edge g935fd from Taiwan. The phone was working fine there in Taiwan. When I came back to the States, however, the phone seems to have trouble connecting TMobile's LTE mobile data. The LTE goes on and off , no matter where I am. The phone still says that it is connected to LTE even when the data is not loading. I tried to reset the APN setting but no avail. I also tried that sim card on my old ASUS Zenphone 2 and the LTE worked fine so it is probably not the sim card's fault. The weird thing is that I can still call, text, and even use 3g network, it's only LTE that is not working properly. Anyone got a solution to this?
check your phone lte band...
*#27663368378#
- UE Settings & Info
- Settings
- Protocol
- NAS
- Network Control
- Band Selection
- LTE Band Selection

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