Develop Bugs

Cannot select manual network?

Hi,
I've purchased an unlocked TP2 from Clove and it seems to be working well, except for one irritating problem. I cannot select a network operator manually. I have the tab available but everytime I click on it, it gives me a 'device.exe' error.
I have been experiencing a lot of missed calls and my network operator suggested that I change the automatic settings to manual. This obviously did not happen and my callers continue to get a 'customer not reachable message'.
I tried calling HTC (India) and they had no idea on how to resolve this issue, partly because the TP2 hasn't been released here as yet.
Any help would be much appreciated.
Thanks in advance

had the same missed calling problem, but it lies on the EDGE network where i always ON, change it to 3G and problem is gone. however, battery life decreased significantly

Unfortunately, I can't seem to find the 3G selection tab. I wonder if it's because the one I have is a Euro version? Will dig in deeper.
Thanks

nikanarani said:
Unfortunately, I can't seem to find the 3G selection tab. I wonder if it's because the one I have is a Euro version? Will dig in deeper.
Thanks
Click to expand...
Click to collapse
Look under start\settings\phone\band change it to only use GSM and it will stop switching between bands, however data will be much slower on GSM than UMTS.
Cheers,
Beasty

Still no luck. Will keep on pegging at this.

WCDMA / GSM auto problem

Hello Guys,
I'm experiencing a problem with my Froyo Desire for probably a week now.
The thing is that in certain areas my Phone can not receive calls / sms or such. In other words "GSM services" dont work. 3g though works fine (stable, strong and fast connection) My Provider is T-Mobile.
After quite a lot of testing I was able to isolate the error:
When WCDMA / GSM is chosen by the phone automatically it seems to me as if it didnt switch "back" to register with my provider via GSM when i want to make a call or if someone wants to call me.
When i switch to "GSM only" manually everything works fine but i have no 3g of course.
I also experience this problem only in certain areas. I live in an area where there is really strong HSDPA available (up to 7mbit\s). When i go to other places of my city i still get HSDPA (not as strong) but calls / sms still work.
The last paragraph may be of no importance, i don know.. probably it helps..
I have googled quite much about this problem and also found a few persons experiencing the same issue but nobody was able to come up with a solution.
I would be very thankful if someone could try to figure this out.
schnip

push______

Hi Guys,
... exactly the same problem here!
- same device
- t-mobile germany
- problem exists only in specific cells
ideas or solutions welcome
LordKnut.

gsm only Desire?
I'm having a nightmare with 3g 2g connectivity on my Desire on the three network whilst at home. If I could manually select gsm only this would be fine as I could still call and text and use wi-fi. Unfortunately my options are gsm/wcdpa (or whatever) auto or the 3g only.
can someone please advise if it is possible to select gsm only and if so, how?
many thanks

Can someone please advise me how if possible, to set the desire to gsm only?

VKeane said:
Can someone please advise me how if possible, to set the desire to gsm only?
Click to expand...
Click to collapse
Wireless and network-Mobile network- should be here somewhere.

Thanks, but there is no option for gsm only. It's wcdma only or gsm/wcdma auto. there has to be a way around this.

Similar problem, different version
I've experienced similar problem.
In some area, I can get steady grps signal when I switched GSM only on; but when I switched WCDMA/GSM on, I could get no data connection at all.
I'm using China Unicom's mobile service.

Solution
Hi there,
I've the same issue and I fix it allowing the option GSM/WCDMA Auto in the configuration menu.
Then enter the following code *#*#4636#*#*, select "phone Information" and set preferred network type, set "GSM car (PRL)".
Sorry about my bad english.

HTC Desire reception

Hello! I bought a desire second hand and it has no reception. I tried to change the radio and I tried almost everything. It didn't work. When there is an outgoing connection the reception is 3 and 4 bars but when the device go to sleep and then wakes up there is no reception. I think that is a problem in 2G module but I can't find the desire's scheme to see where is the 2G module situated and to see if it is broken.
Please if someone has a a scheme please post it or know what is the problem.

toncata said:
Hello! I bought a desire second hand and it has no reception. I tried to change the radio and I tried almost everything. It didn't work. When there is an outgoing connection the reception is 3 and 4 bars but when the device go to sleep and then wakes up there is no reception. I think that is a problem in 2G module but I can't find the desire's scheme to see where is the 2G module situated and to see if it is broken.
Please if someone has a a scheme please post it or know what is the problem.
Click to expand...
Click to collapse
It looks at the operator's APN, it is possible that they are not in his place.
Is it Sim-Unlock???
You should not change the Radio until you do not solve the problem. Anyway: does he settle well when you change it?

Wel1973 said:
It looks at the operator's APN, it is possible that they are not in his place.
Is it Sim-Unlock???
You should not change the Radio until you do not solve the problem. Anyway: does he settle well when you change it?
Click to expand...
Click to collapse
Yes, it is Sim-Unlock. When the outgoing connection is active, there is no problem, Sometimes it drops but most of the cases it is stable and it doesnt stop. But when going to sleep there is no reception.
I look at the APN but everything is ok.

Type this on telephone: *#*#4636#*#*
It looks in the principal field of the submenu, and if it puts WCDMA you must change to GSM auto (PRL). It can be that it gives turned out...
Greetings.

Wel1973 said:
Type this on telephone: *#*#4636#*#*
It looks in the principal field of the submenu, and if it puts WCDMA you must change to GSM auto (PRL). It can be that it gives turned out...
Greetings.
Click to expand...
Click to collapse
It doesnt resolve the problem. Still exist.

Is it possible the problems is from this:
http://www.parts4repair.com/htc-desire-antenna-cover-black/

toncata said:
Is it possible the problems is from this:
http://www.parts4repair.com/htc-desire-antenna-cover-black/
Click to expand...
Click to collapse
Ummm!
If, probably.
It seems of the hard....
Good Luck!! and Grettings!!

Is someone know if there is some tech in the antenna cover or what is the role of it?

i have the same problem.
WCDMA works fine but GSM is broken. I've tried everything... different radios, settings, etc... looks like a hardware defect.
Did you find a solution?

I would love to find a way to really troubleshoot this. I've been having problems with flakey reception for a very long while. Im inclined to think the desire simply does not perform well in areas with moderate to low coverage. In other words, it needs a strong signal.
Are you sure your provider has a gsm network? In Canada, Bell and Telus (and their discount brands) don't have a gsm network. They built a hsdpa network on top of their old 2G cdma network. They are not compatible. Rogers network is better since you can always fall back on the legacy gsm network.
Sent from my HTC Desire using xda app-developers app

UMTS/HSDPA/3G not connecting on MIUI 8 for anyone else?

I have an issue with every build I've tried of MIUI 8 (Stable versions), but not with the developer versions of MIUI 9.
The phone will not connect to UMTS/3G networks with either sim. LTE works fine, and there's no GSM where I live so I can't test that.
It will connect for a moment when first booting up the phone, then immediately disconnect and stay disconnected. It can't find 3G networks when searching either.
Again, this doesn't happen on MIUI 9 builds, but I figure this big of a bug, they would never release it as stable. Can anyone else let me know if they've had this problem?

Hello, I`m having same issue, here in this way. In town there are many repeaters. Here is no problem, in germany many 4G-Networks are working in band 20 (800 mhz). In areas, where no 4G/lte is possible, the mi mix2 (china stable miui8 and china dev miui9) the mix2 can not connect to 3G/UMTS. A smartphone Redmi note 4 with this SIMCard connects to 3G/UMTS and gets connection data to HSDPA+. The mi mix icon diasappears and there is a "emergency" Icon. Then the mi mix2 connect only to GSM and after 1-2 minutes get Data to EDGE. But at this place it is possible to connect to 3G. I rebooted the device many times, changes sim to other slot. Tried China dev and stable. Last test with XIAOMI.EU and EPICROM for MIX2 are sad. Same issue
Many MIX2-User have this effect. I have this effect on Sim-Cards from provider Telefonica/O2. I have tried 3 Sim-cards from provider O2. No 3G - Connect.
In germanys-forums the is a hint to define "force 3G-Connects". Some user writes, that they do not have this effect with this definition.
Does have XIAOMI a 3G-Bug with new MIMIX2??

holger1308 said:
Hello, I`m having same issue, here in this way. In town there are many repeaters. Here is no problem, in germany many 4G-Networks are working in band 20 (800 mhz). In areas, where no 4G/lte is possible, the mi mix2 (china stable miui8 and china dev miui9) the mix2 can not connect to 3G/UMTS. A smartphone Redmi note 4 with this SIMCard connects to 3G/UMTS and gets connection data to HSDPA+. The mi mix icon diasappears and there is a "emergency" Icon. Then the mi mix2 connect only to GSM and after 1-2 minutes get Data to EDGE. But at this place it is possible to connect to 3G. I rebooted the device many times, changes sim to other slot. Tried China dev and stable. Last test with XIAOMI.EU and EPICROM for MIX2 are sad. Same issue
Many MIX2-User have this effect. I have this effect on Sim-Cards from provider Telefonica/O2. I have tried 3 Sim-cards from provider O2. No 3G - Connect.
In germanys-forums the is a hint to define "force 3G-Connects". Some user writes, that they do not have this effect with this definition.
Does have XIAOMI a 3G-Bug with new MIMIX2??
Click to expand...
Click to collapse
You can install the Miui9 radio and it fixes it.

duraaraa said:
You can install the Miui9 radio and it fixes it.
Click to expand...
Click to collapse
Which Radio Version and wehre to get? I am on miui9 beta and having same issue with this o2 card... It is very anoying.

el3c said:
Which Radio Version and wehre to get? I am on miui9 beta and having same issue with this o2 card... It is very anoying.
Click to expand...
Click to collapse
If you're on MIUI 9 beta, you already have the radio I'm talking about.

duraaraa said:
If you're on MIUI 9 beta, you already have the radio I'm talking about.
Click to expand...
Click to collapse
okay, it doenst fixed that
The default Setting for this SIM is: LTE/TD-SCDMA/WCDMA... this is almost wrong, because we havent TD-SCDMA in Germany, i ve switched to LTE/UMTS RPL ...this seems to work better with my o2 card.
Sometimes the connection breaks down from LTE or LTE+ to H+ ...but after the break down, i have no data connection. If i activate flight mode and re enable data, i also get H+ but for now with data connecting. This is very frustrating
Also that my Settings to LTE/UMTS are removed after a reboot or i switch to the second sim. Any suggestions to fix it permanent to LTE/UMTS ?

Did anyone tried MI MIX 2 Global - Version?´ Bug exists still there?

I am on 9.1

I set it on LTE/TD-SCDMA/GSM. I live in Germany too and have a O2 card.
GSM is slower than UMTS cause it's older. But it works without problems.
Now I trying with LTE/TD-SCDMA/UMTS. I have to say that I have some problems too.

Targosch said:
Now I trying with LTE/TD-SCDMA/UMTS. I have to say that I have some problems too.
Click to expand...
Click to collapse
we dont have TD-SCDMA in Germany so, this setting is false... TD-SCDMA is a chinese or asian network standard

el3c said:
we dont have TD-SCDMA in Germany so, this setting is false... TD-SCDMA is a chinese or asian network standard
Click to expand...
Click to collapse
Should I take LTE/UMTS?

Targosch said:
Should I take LTE/UMTS?
Click to expand...
Click to collapse
yep, this seems to works best and also breaks down to gsm if there is no other network available... but...
sim 1 + data card : o2
sim 2 as voice card: D1
if i make a call with sim 1 / D1 my first sim as data sim loose the data connection, even it is connected to a lte network...strange thing today i had a conf call over sim2 for about 4 hours, while this time i didnt recieve any mail or whatsapp.
but if i set sim 2 / D1 as data card and make a voice call, this card wont loose data....strange, maybe a o2 issue?
edit: made a test with D1 as data and if make a call with the o2 card, also d1 loose data instant

I have a new (2.nd) MI MIX 2. And: I have the same Problem. O2 is switching vom GSM/EDGE to UMTS an gets no Connect. Then only "EMRGENCY CALLs". And then GSM again. o2 is provider. roaming is on.
With second SIM (Vodafone) there is no problem. Is there a fix for that problem? One member wrote there is a new "radio". Where to find it?
Same SIM (o2) in a REDMI NOTE 4 (LTE Band 20 800 MHZ) is "ok". It is an MI MIX 2 - Problem!
I have the MIUI 9 Global.
MI MIX2 with O2 and no LTE and no 3G/UMTS??? Joke?

holger1308 said:
I have a new (2.nd) MI MIX 2. And: I have the same Problem. O2 is switching vom GSM/EDGE to UMTS an gets no Connect. Then only "EMRGENCY CALLs". And then GSM again. o2 is provider. roaming is on.
With second SIM (Vodafone) there is no problem. Is there a fix for that problem? One member wrote there is a new "radio". Where to find it?
Same SIM (o2) in a REDMI NOTE 4 (LTE Band 20 800 MHZ) is "ok". It is an MI MIX 2 - Problem!
I have the MIUI 9 Global.
MI MIX2 with O2 and no LTE and no 3G/UMTS??? Joke?
Click to expand...
Click to collapse
change network to LTE/UMTS PRL ...then it should work better PRL = prefered roaming list; go to settings -> about phone -> tap several times on the info about internal storage -> the network app will appear, now you can change network settings... until next boot, then you have to set it again
maybe mix 2 has a problem with national roaming?! cause o2 uses national roaming -> their own network and the network from e-plus

Yes, the MIX 2 does have issues with switching to anything other than LTE. Even when it says it switched to H or H+ there is actually no reception at all and it takes a few minutes for it to recover. Really annoying, hopefully the engineers fix this issue as soon as possible. Pretty inexcusable bug for such a device.

Hello, Switching to " LTE/UMTS PRL" has the effect, only UMTS/3G-Connections are possible. No LTE/4G. Provider: German O2.
XIAOMI might have to fix this bug.
Q: Has anyone took a Message to [email protected] ?? http://en.miui.com/forum.php?mod=bugfeedback&fid=5&page=1

holger1308 said:
Hello, Switching to " LTE/UMTS PRL" has the effect, only UMTS/3G-Connections are possible. No LTE/4G. Provider: German O2.
XIAOMI might have to fix this bug.
Q: Has anyone took a Message to [email protected] ?? http://en.miui.com/forum.php?mod=bugfeedback&fid=5&page=1
Click to expand...
Click to collapse
LTE/UMTS PRL fixed that for me totaly ... i dont had any issues since them! I am also getting LTE and LTE-A with o2 and i am travelling a lot due to my job in germany.
i think its also problem with o2 and national roaming. if you search for this problem in google, you will find the same issue reports from other devices within in the o2 network. I did never had the same problems with my other D1 card in the same device.

LTE/UMTS does not work for me.
Since yesterday I use LTE/TD-SCDMA/UMTS and it works fine.
Provider: O2 Germany

It looks like 3G/HSPA doesn't work when roaming (possibly local roaming too). LTE works fine. In the UK I can get internet all the time regardless of connection type. I travelled abroad and only LTE worked using my UK SIM. This also happens on AOSP based ROMs since I'm using Resurrection Remix and still experienced the issue.

Mr_Bartek said:
It looks like 3G/HSPA doesn't work when roaming (possibly local roaming too). LTE works fine. In the UK I can get internet all the time regardless of connection type. I travelled abroad and only LTE worked using my UK SIM. This also happens on AOSP based ROMs since I'm using Resurrection Remix and still experienced the issue.
Click to expand...
Click to collapse
Yes, this is clearly a firmware-level issue. They need to fix their modem.

phone info networks

UK user here tried putting my settings to LTE and LTE/WCDMA.
Now I cannot ring out or receive calls
I have to put my phone on td-scdma/CDMA/utms
I lose my 4g/LTE signal pretty much all the time on this setting,where on LTE it's solid and does not drop
Any help

sutty86 said:
UK user here tried putting my settings to LTE and LTE/WCDMA.
Now I cannot ring out or receive calls
I have to put my phone on td-scdma/CDMA/utms
I lose my 4g/LTE signal pretty much all the time on this setting,where on LTE it's solid and does not drop
Any help
Click to expand...
Click to collapse
LTE/UMTS works here in the US. Correct me if I'm wrong but think 5T's are all GSM, and that might be why setting CDMA isn't working for ya