[Q] 3g issues after upgrading gt-i5500 - General Questions and Answers

Hi everyone
Here in Argentina, after upgrading the phone to froyo, with official and mod firmwares (motafoca), a lot of people experience the lost of 3g network, the phone only works on edge. we already checked the apn, did the herware reset, vn rebuild and all the obvious solutions.
Im thinking the problem is the "amss" file in the new firmware which is the qualcom modem configuration.
Someone know if its possible to backup it or maybe delete from the firmware before update it with odin (having a working 3g phone)? Thanks
Javo

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[Q] Can I flash the Canadian wifi firmware on 3G US Xoom?

hi,
I bought a Verizon 3G Xoom in the US and took it back home to Denmark. Now, the 3G doesn't work of cause, but on top of this some app (like Good Tech for Enterprise) won't run because they think I belong to the verizon network (that don't allow Good Tech).
So long story short. I don't need 3G and I would like to lose the verizon stigma. My xoom is already rooted. Can I run the Canadian wifi fireware on it?
Doubtful.
Kcarpenter said:
Doubtful.
Click to expand...
Click to collapse
Im confused. If you read this thread:
http://forum.xda-developers.com/showthread.php?t=1041453&page=2
The user successfully flashed Canadian firmware on a US WIFI version Xoom. If you read this thread:
http://forum.xda-developers.com/showthread.php?t=1022382
the user accidentally flashed 3G firmware on a WIFI and it seems to me that it worked until he tried to unroot it again.
Why would you state that its not possible?
alxgarder said:
Im confused. If you read this thread:
http://forum.xda-developers.com/showthread.php?t=1041453&page=2
The user successfully flashed Canadian firmware on a US WIFI version Xoom. If you read this thread:
http://forum.xda-developers.com/showthread.php?t=1022382
the user accidentally flashed 3G firmware on a WIFI and it seems to me that it worked until he tried to unroot it again.
Why would you state that its not possible?
Click to expand...
Click to collapse
3g firmware on wifi devices has already caused issues in the past.
I would assume that you are asking for nothing but trouble the other way as well.

what's causing slow network speeds?

I'm running the KitKat+ ROM I found in the development section plus faux kernel, I flashed over jellybean and applied fix v2 so I'm getting no problems uninstalling apps or entering security settings. Thing is when I'm at home or even outside I get really slow network speeds of about 0.4 Mbps down,and in settings-aboutphone-status it switches between hspa and hspa+,but down the road about 350 metres at my kids school I get up to 7 Mbps down,I'm just wondering what version of the moto g is this KitKat+ rom based on,I own the UK retail version and was thinking if its based on a us version would it cause problems with connecting to a UK network or have problems with hspa+ in the UK based on what base this ROM is using,just throwing it out there.
Have you tried setting it to GSM auto (PRL) ?
My previous phone (HTC One X+) was running BlackBean rom and was set to CDMA by default, meant that i had to reset to GSM after every reboot.
I have experienced this also on a UK XT1032 running US Global GSM 4.4.2 - Data works but often slowly and stops entirely for periods of time. I had assumed it was the ROM and I'm waiting for the UK 4.4.2 stock firmware image which I expect will solve it. Perhaps unrelated, but I've noticed Opera Mini will not work over 3G in this ROM, but it works fine on Wifi.
EDIT: I was just thinking; that by fastboot flashing the Stock US firmware image, the UK modem firmware may also have been replaced. That could explain the problems. Flashing back the 4.4.2 UK modem firmware might fix it.
My Baseband version:
MSM8626BP_1032.340.63.00R​
Can someone with a US Global GSM XT1032 confirm their Baseband version? Nevermind, confirmed via google. UK Tesco XT1032 running 4.4.2 also has the same Baseband version.
You could try flashing the UK stock 4.4.2 'NON-HLOS.bin' which appears to include the modem firmware. However if I remember correctly, flashing an incorrect radio firmware is one of the few ways to irrecoverably brick a handset.
Safest bet is to wait for the full UK stock 4.4.2 firmware image and fastboot flash that. In future when you flash a different ROM, i.e CM11, you are likely to use CWM/TWRP and the existing UK modem / radio firmware will remain untouched.
If someone wants to correct me on this, please do.

[Q] P3100 can't make or receive calls after official update. What to do?

The provider specific SIM menu is available, but the tablet shows no signal. Even when it shows one, the signal disappears the moment I try to make a call or am about to receive one. The caller can still hear ringing while the tablet lists the call as missed call.
My father's Galaxy Tab 2 7" automatically tried updating through wifi but failed (I presume), and the SIM functions stopped working.
After many attempts I updated it through OTA to the latest firmware, shown as PDA:NA3 / PHONE:LK1 / CSC:NB1 (INU) in Kies, and the Android version was listed as 4.1.2., but the problem persisted.
I tried to wipe cache. It didn't sort the problem.
Then I Installed CWM 6.0.7 and Cyanogenmod 10.1 (JB 4.2.2) using this tutorial: wiki.cyanogenmod.org/w/Install_CM_for_p3100
Still it can't make or receive calls.
Baseband version is listed as p3100ddclk1
What to do?
Is this a hardware or firmware problem?
Hey brother,
Even I am facing the same order on my tab but in a different way. I can recieve signal for the carrier Tata Docomo but other carrier are showing any sign of life
But sometimes while on tata docomo , I lost signals while using data or when I got a call. And one more thing, I was on a trip to a hill station and there I was getting signals from Vodafone perfectly (my main service provider). But when I came back from there I ain't receiving any peice of signals from vodafone and Docomo is working as usual with few network losses during the day.
PS.- I ain't received any solution yet, still sticking up with that problem.
PPS.- The tab I brought is in used condition with the fact that the tab has that problem in it. (I need not to pay much lol)
Btw I think if we can flash new firmware (official) with odin with modem file, It may sokve our problem. TRY FLASHING FIRMWARE, I cant as I am low on speed
xanubhavx said:
Hey brother,
Even I am facing the same order on my tab but in a different way. I can recieve signal for the carrier Tata Docomo but other carrier are showing any sign of life
But sometimes while on tata docomo , I lost signals while using data or when I got a call. And one more thing, I was on a trip to a hill station and there I was getting signals from Vodafone perfectly (my main service provider). But when I came back from there I ain't receiving any peice of signals from vodafone and Docomo is working as usual with few network losses during the day.
PS.- I ain't received any solution yet, still sticking up with that problem.
PPS.- The tab I brought is in used condition with the fact that the tab has that problem in it. (I need not to pay much lol)
Btw I think if we can flash new firmware (official) with odin with modem file, It may sokve our problem. TRY FLASHING FIRMWARE, I cant as I am low on speed
Click to expand...
Click to collapse
@xanubhavx Where can I download the modem file for P3100?
asraf5285 said:
@xanubhavx Where can I download the modem file for P3100?
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Click to collapse
I am not sure about the Model file alone but you can download whole firmware from sammobile.com, they have firmware of all Samsung devices region wise, just login to enjoy better speed.
Hope this helps.
xanubhavx said:
I am not sure about the Model file alone but you can download whole firmware from sammobile.com, they have firmware of all Samsung devices region wise, just login to enjoy better speed.
Hope this helps.
Click to expand...
Click to collapse
i already download the firmware for Malaysia and how to get the modem file from it? Should I extract it and search in?

[Q] SCH-i705 looking to restore to stock(for starters)

Hey, gang. I have a friend in a different state who has a Verizon Galaxy Tab 2, it is a SCH-i705, and the firmware is 1705VRBMI1. He doesn't have mobile service on it, but would be interested in using it over WiFi for stuff, He did a factory reset a while back(without its being on Verizon's network), and has been experienceing some problems with WiFi connectivity and some apps.
I am hoping to help him restore his Tab to stock. I have already flashed several of mines and my friends' devices, but I haven't worked on anything this old before. I have tried to find a suitable thread, but every one I've seen seems to contain outdated or disputed information.
What I'd like to know is:
- Can I sideload the stock 1705VRBMI1 firmware using Odin, and if so, where can I find it?
-Is 1705VRBMI1 the latest official firmware for this device?
-Will his not being connected to a mobile network prevent us from restoring his device to stock?
-Is there working root/recovery etc. for this firmware? Where?
If I am missing a very obvious thread about this somewhere please feel free to mock me mercilessly. And thanks in advance.

930F modem for 930S

I bought 2nd SK Telecom unit (930S), which has same SoC as 930F. Is it possible to flash 930F modem to 930S? I get this issues regarding mobile network in LTE doesn't work well, I have to lock it to WCDMA in order to make network run again. I suspect this as modem issues, but is it? Or is this OS problem? Tried 3 carriers, problem persists.
While they are the same SoC, there are some differences that will make flashing G930F over G930S result in bootlooping.
I assume you're not in South Korea?
The firmware will be configuring for Korean carrier / networks. Your best bet would be flashing TWRP, then using this to change your device to your carriers CSC https://forum.xda-developers.com/s7-edge/development/utility-flashable-csc-selection-30-t3392957
lasbrujazz said:
I bought 2nd SK Telecom unit (930S), which has same SoC as 930F. Is it possible to flash 930F modem to 930S? I get this issues regarding mobile network in LTE doesn't work well, I have to lock it to WCDMA in order to make network run again. I suspect this as modem issues, but is it? Or is this OS problem? Tried 3 carriers, problem persists.
Click to expand...
Click to collapse
It could be the stock ROM on there (with sk apps). When I bought mine I immediately flashed TWRP, NAND backup and flashed a custom TW ROM and had zero network issues. I never bothered seeing if the stock ROM was worth using. I'm using BlackPearl with zero problems with network or otherwise on AT&T.
I should clarify many custom ROM's work on goth 930F and 930S, but stock 930F images will bootloop a 930S.
hello, im using g930s too with g930s stock bootloader and baseband/modem. but with hyper alvi 4.1 rom. still got problem in 4G mobile network signal. should i try to change csc or modem file? i think the csc was from wrong country, could that be the culprit? thanks guys

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