Database Develop

N1 on Three (3) UK?

I've just moved to 3 in the UK (from vodafone) and I can't get a data connection - I get the error "Data connection lost" reported on several threads here, however my old vodafone SIM (which runs out on Tuesday) runs perfectly fine on 3G
on 3 the phone test (#*#*4636*#*#) shows HSDPA connection and the ping test FAILS (with no response)
on Vodafone I'm also on HSDPA - but the ping test succeeds
I'm on
stock Froyo FrF91 -
rooted and unlocked
32.36.00.28U_4.06.00.12.7 baseband
and 2.6.32.9-27227 kernel
So
Anyone have a clue what the issue might be?
If I can't get this fixed I'll have to move (AGAIN!) , off Three - and onto somewhere else. I'm sure there are other 3 users with N1's!
Graham

More bizarre
OK - this gets more bizarre - can anyone explain this?
Take my 3 SIM to 3 Shop - plug it into a 3 branded HTC wildfire - and it works just fine. Use their 3 SIM from the HTC wildfire on my machine - and it work great. Plug my sim back into my N1n- it works just fine now. #*#*4636*#*# actually resolves my pings and get great transfer speed
All smiles
Drive home - check again - no name resolution occuring - no data download. still on HDSPA
:-(
WFT is going on here!!
G.

Hello,
I'm on Three with a N1 and unlocked custom Froyo Rom. Works fine for me. Question, are you getting 2g signal, can you make calls etc, is it only 3g you are having problems with?
Are you sure there is Three 3g signal in your area?
Settings>Wireless and Networks>Network Operators
Can you see it there?
Have you tried resetting your APN settings to default?
Settings>Wireless and Networks>Access Point Names>
Menu>Reset to Default
Let us know how you get on.
Cheers.

Have you tried "WCDMA Only" instead of "WCDMA Preferred"? Works better on 3 for me anyhow in Ireland.

jim29 said:
I'm on Three with a N1 and unlocked custom Froyo Rom. Works fine for me. Question, are you getting 2g signal, can you make calls etc, is it only 3g you are having problems with?
Are you sure there is Three 3g signal in your area?
Click to expand...
Click to collapse
Well on the stock froyo rom it doesn't differentiate between 3G and H,but I always get 3G displayed - with 4 bars. Can make calls - no problem
The diagnostics always shows HSDPCA (or whatever!)
however it won't ping or resolve from my house
I drive into town (1 mile) - and it works
I guess its a reception issue??
Phone physically gets hot with the 3 SIM in - at my house - and battery life is appalling (3 hours to flat) - so I guess its trying really hard to connect.
I defaulted the APN again and selected EURO band only - and still no luck. No data connection from my house.
3 network coverage map says I have good coverage - and (as I said) 4 bars in signal strength.
Odd
G.

cpm said:
Have you tried "WCDMA Only" instead of "WCDMA Preferred"? Works better on 3 for me anyhow in Ireland.
Click to expand...
Click to collapse
Remind me - I know I've seen that option somewhere - but I can't find it at the moment
Thx
G.

Set WCDMA Only the same menu you chose Euro Band from. It's a dropdown box.
It does sound like it could be a reception problem all right. There's also a new radio available which might provide stronger signals. Worth trying that too IMHO http://forum.xda-developers.com/showthread.php?t=723839
Sent from my Nexus One using XDA App

If u have 2g to make calls and Wifi for Data, then you might have to settle for that I guess, if your phone works 3g in one area and not another, I would say reception issue, do any of your mates have a Three phone they can test at your house?

Here's another tip, try the following...
Menu > Settings > Wireless & networks > Network operators
Select "Data roaming"
Choose "Select automatically" instead of 3
See how that goes.
PS I'm now using the new radio 5.08 I linked to above. Looks like I'm getting a stronger signal.
Sent from my Nexus One using XDA App

[Q] Network selection issues, not wifi related

Anyone on froyo have this problem?
This includes anyone using custom rom
The only way I can get it to switch back to 3G is if I use samserv debug to change my band to WCDMA only.
if i do the following I get this problem:
1) From WCDMA/GSM (auto) or WCDMA only -> Change to GSM only
2) I get GPRS signal -> then i get emergency call only due to bad 2g reception in my area
3) Change GSM only to either WCDMA only or Auto - it does not change back to 3G and stays as is in GPRS mode, and I lose connection. Won't turn back on to 3G again.
Never happened in 2.1. Only in 2.2.
The problem with staying on 1 band is:
My home has bad GSM signal, but 3G does not have a very wide coverage in my region. So in some areas, if there is no 3G signal I lose connection totally and people cannot get me. When I am at home I cannot be on GSM because I get no connection. Whereas 3G signal is not too bad where I live.
Anyone have any ideas how to solve this? Or is this a hardware issue? I'm not entirely sure if its hardware related because I can get the bands if I force it to via debug. But it won't auto switch nor will it switch inside the regular settings menu.
On all 2.1 versions I never had this issue.
On 2.2 stock DXJPA i started having this problem.
Now on darky 8.0 and this problem is still here.

HELP!
mystombox said:
Anyone on froyo have this problem?
This includes anyone using custom rom
The only way I can get it to switch back to 3G is if I use samserv debug to change my band to WCDMA only.
if i do the following I get this problem:
1) From WCDMA/GSM (auto) or WCDMA only -> Change to GSM only
2) I get GPRS signal -> then i get emergency call only due to bad 2g reception in my area
3) Change GSM only to either WCDMA only or Auto - it does not change back to 3G and stays as is in GPRS mode, and I lose connection. Won't turn back on to 3G again.
Never happened in 2.1. Only in 2.2.
The problem with staying on 1 band is:
My home has bad GSM signal, but 3G does not have a very wide coverage in my region. So in some areas, if there is no 3G signal I lose connection totally and people cannot get me. When I am at home I cannot be on GSM because I get no connection. Whereas 3G signal is not too bad where I live.
Anyone have any ideas how to solve this? Or is this a hardware issue? I'm not entirely sure if its hardware related because I can get the bands if I force it to via debug. But it won't auto switch nor will it switch inside the regular settings menu.
On all 2.1 versions I never had this issue.
On 2.2 stock DXJPA i started having this problem.
Now on darky 8.0 and this problem is still here.
Click to expand...
Click to collapse
I too have the same problem.I tried flashing stock firmware via odin and even officially tried to upgrade to froyo but still the problem persists.
somebody help

[Q] Phone does not automatically switch mobile network mode

Hello,
My I9000 has a peculiar problem: While both mobile internet and Wi-Fi work fine, switching to 2G when 3G/UMTS/HSDPA coverage is bad does not. It ends up losing network connectivity completely in areas where other phones have no problem staying connected by switching to GPRS/EDGE. (3G coverage is spotty here at times, so this matters quite a lot.)
This problem has first appeared rather spontaneously when it was running its stock 2.1 firmware and has persisted through upgrades to stock 2.3 and CyanogenMod 10 through 11. I've attempted to switch modem firmware to mitigate it to no avail. (Modems XXJVT and ZFJPG/BVJJPG were tried, no difference was noticed - I am rather wary of messing with modems further, as this is my only phone and I'd rather it still could call at the end of the day.)
Moreover, if network mode is switched to GPRS/EDGE manually, it can't be switched back to 3G (either manually or automatically) without a reboot. (The 'set preferred network type' field in *#*#4636#*#* starts resetting itself to 'Unknown' spontaneously at this point.)
Unfortunately, I don't know many details of the incident that caused the appearance of the problem, as I was not the owner of the phone at the time - I only know that it was roaming nationally (within the same country) at the time. (The network type should have been the same, and it's not like it's stuck in roaming in any way.)
Has anybody encountered such a problem before? Is this likely to be a hardware problem, or could there be a software fix?
Thank you in advance for your thoughts.

[Zaba] said:
: While both mobile internet and Wi-Fi work fine, switching to 2G when 3G/UMTS/HSDPA coverage is bad does not. It ends up losing network connectivity completely in areas where other phones have no problem staying connected by switching to GPRS/EDGE. (3G coverage is spotty here at times, so this matters quite a lot.) .
Click to expand...
Click to collapse
you need to try fiddling with its network settings (read this for info only) you can use service codes on i9000 to set your network settings . Sometimes it may be due to network settings not set to Auto and set to preferred and at other times it could be antenna connection inside the phone having poor contacts.
Check this out! Links to useful Guides and " Banned " Documentaries ​

Thank you for the hint. I have tried setting the "Select radio band" setting in *#*#4636#*#* > Phone information to European bands manually, and this appears to have mitigated the problem at least partly (phone has switched to 2G and back a few times during the day). I've noticed that it would sometimes just turn mobile data off despite having a good signal, not sure if this is related. It also sometimes seems to prefer another operator's 3G network to its own 2G ("emergency calls only", network mode is UMTS/HSDPA), but this is only guesswork since I have no way to actually confirm that the areas where this occurs have 2G coverage (it just seems really unlikely that they wouldn't). Maybe the fact preferred network type is "WCDMA preferred" factors into this.
TL;DR: Forcing radio bands seems to have helped, other radio weirdnesses remain but aren't nearly as bad.

No more 3G/HSDPA+ mobile network

For quite a while now, do I no longer get any 3G/HSDPA/HSDPA+ connection. I am unsure since when exactly it happened or what the cause of it is, but I am sure that I should be getting 3G, as I could verify 3G connectivity with other phones.
In the end, I only have slow 2G/Edge connectivity. LTE is not an option due to the lack of band 20 unfortunately.
I live in Germany and was able to try the networks of Vodafone and O2/E-Plus using different SIM cards, however neither of which got me a 3G connection, despite 3G being available in this area.
Also, for some reason using the hidden "Phone info" menu in android, you can select the radio band. There I only have the options "Automatic", "United States" and "Cellular 800". Setting it to anything beside "Automatic" results in no connectivity at all. I remember seeing more options here, like Europe and so on.
I am currently running a clean install of Omnirom (Android 8.1) and used Resurrection Remix (Android 7.1.2) before that. It stopped working when I still on RR. I have to assume something changed with more recent firmwares? I am currently running Developer Firmware 8.3.1.

same here on turkey, ankara, vodafone

I just reverted to stock official MIUI (tested both stable and dev) and neither had 3G connectivity. My old Galaxy Nexus had 4 out of 5 bars 3G/HSDPA+ connectivity at the very same location...
isnt the actual frame being used as an antenna? did I maybe dislodge (via dropped phone) the connectivity somehow with the "3G antenna"? Is there a sheet for this, what part does what in case I need to take it apart?

Strange switchs 4G (LTE) to H+

Hi,
I'm new in MI8 community ? (just living leeco lepro3 ). I've strange switchs between 4G to H+.
I explain ?. Previously, at home, I was all the time in 4G with my PRO3. But now, my MI8 switchs time to time and during the switch I loss the connection. Nevertheless, my device receives full signal in 4G and it stays connected on the same BTS.
If I set it in plane mode ON and after OFF...back to 4G for a short time...
I'm on miui10 and on Sosh (orange) french network.
Tks for your help

Hey !
I'm also french and i'm experiencing that kind of H+ switches, as you I had 4g in these areas before with my oneplus 3 with Bouygues Telecom ISP and now i can't even connect to the internet, must be the antennas...

I can connect to 4G but something doesn't work fine...I can't stay connected. The level of the signal increase and dicrease strangly.
I'm a little bit disapointed :crying:

Because each phone have different bands and if your phone doesn't have the right band for your area cell tower then it'll keep changing back to the most stable connection it can do.

Sure, I know that. But I leave in campaigne with only one BTS. So I'm always connected to the same antenna.
And if it was an issue with the frequency band (lepro3 has the same), switching OFF/ON, airplane mode should not fix my issue.
I've tested with Mate 20, and i'm always 4G in full power received !

Nobody else has the same issue ??

I have the same issue, 4g and H+ are switching all the time. Sometimes it keeps switching several times in a minute on a fixed location.
I am in Croatia, operator is A1, Mi8 Global model.

very well it seems like it's not an isolated bug. can we trace this kind of problem to xiaomi and if so by which channel?

Hi, i'm still facing time to time the issue. No fix planned? I'm not alone.

Zero promises here but you can try forcing the network mode to LTE/UMTS auto (PRL) and check if it makes a difference.
To Change 2G to 3G 4G LTE only network mode in Android Phone via USSD code, take the following steps:
Dial *#*#4636#*#* OR ##626* OR ##786# in your phone
Select Phone Information
If you have Dual SIM Select the Slot (SIM) you want change settings for
Scroll Down and select the Option Under “Set preferred network type”
Click to expand...
Click to collapse
Also works by pressing 5 x times on settings \ my device \ total storage

Thks but It's not a good solution. I won't force network type choice.

fufurax said:
Thks but It's not a good solution. I won't force network type choice.
Click to expand...
Click to collapse
If you flash 9.1.17 Xiaomi.EU they have updated Network Switching handover to European UMTS, instead of default chinese TD-CMDA to WCDMA as Stoffl_ says.
I had the same problem as you say of switching from LTE to H+ because of this. Either change it manually after boot or unlock the bootloader and flash another rom. Until they fix it in global, if they do.

najabi said:
If you flash 9.1.17 Xiaomi.EU they have updated Network Switching handover to European UMTS, instead of default chinese TD-CMDA to WCDMA as Stoffl_ says.
I had the same problem as you say of switching from LTE to H+ because of this. Either change it manually after boot or unlock the bootloader and flash another rom. Until they fix it in global, if they do.
Click to expand...
Click to collapse
I'm sorry but I don't understand... You talk about 9.1.17 > what is it (modem firmware)? It can fix my issue ?
I've the last update of miui, It's included un OTA update?
You have use it and fix the problem?

Just ****ing change the network mode ffs
Worst case you'll reboot and it'll reset to default
He's talking about a custom miui Rom yes

najabi said:
If you flash 9.1.17 Xiaomi.EU they have updated Network Switching handover to European UMTS, instead of default chinese TD-CMDA to WCDMA as Stoffl_ says.
I had the same problem as you say of switching from LTE to H+ because of this. Either change it manually after boot or unlock the bootloader and flash another rom. Until they fix it in global, if they do.
Click to expand...
Click to collapse
Stoffl_ said:
Just ****ing change the network mode ffs
Worst case you'll reboot and it'll reset to default
He's talking about a custom miui Rom yes
Click to expand...
Click to collapse
Ok, thanks I understand. I'll try. I'll keep you posted

fufurax said:
Ok, thanks I understand. I'll try. I'll keep you posted
Click to expand...
Click to collapse
So, after few month my feedback. I've try to force the switching of prefered type of network and it does not work. So I expected a new version of MIUI who can fix it...
Today, I'm in the lastest Miui 10.3.3.0 stable and the issue still