Develop Bugs

[Q] Unable to use UMTS Mode (ONLY GSM WORKS )

Hi all
I just recently acquired a INC 2 Love the phone by the way and am located in INDIA
I'm running a r1 rom which offers full GSM functionality
SIM: TATA DOCOMO
The issue I have is
I can connect to GSM only Mode , but when I try GSM/UMTS or UMTS Only , the phone cannot cannect to a network.
The phone is SIM unlocked and in GSM only mode I can call/sms/data fine
My service provider uses the 2100 mhz band so obviously the INC 2 supports that, I have searched and lot and have tried various ROMS, but unable to narrow down a solution
i have tried the *#*#4636#*#* mode and even there only GSM ONLY works
NO GSM/UMTS , WCDMA or anything
Basically I cannot connect to 3G
Any suggestion guys

bump guys...... 98 views and not a soul to reply

Had the same problem, couldn't find a solution. Bump!

Have you try manually entering the APN (access point network) for your carrier? That might help.

ducksauce said:
Have you try manually entering the APN (access point network) for your carrier? That might help.
Click to expand...
Click to collapse
Yes I have, pretty much tried everything.

yes the APN is the same for both GSM and 3G
It just wont connect to a 3G network... only works on force 2G ie GSM

That is kind of weird. Does Tata only uses 2100 mhz? Maybe try updating the radios? Does the stock rom also not picking up 3G?
I'll be traveling to Hong Kong in 2 weeks and there uses 2100 as well. Let me see if I can get 3G and will let you know. It's hard for me to test UMTS on my DINC2 here in US coz I could only get EDGE from TMobile or AT&T.

All Indian networks use 2100 ... Yes it did not work on stock either ... I'm wondering if band unlocking is needed ..

Why no LTE on ATT?

Just got the z1 compact d5503. I activated a Lumia 635 go phone the other day that indicated it was on LTE. However, when I take the sim card out of the lumia and put it into the d5503, I only get H and H+. Why is that?

Did you set network mode to LTE preferred ?
Settings -> More -> Mobile Networks -> Network Mode

New Folder said:
Did you set network mode to LTE preferred ?
Settings -> More -> Mobile Networks -> Network Mode
Click to expand...
Click to collapse
When I gave ATT the IMEI number they said it is showing up as a 3G phone...Anyone getting LTE?

If att uses 700mhz LTE in your area then you will not get LTE since this phone does not work on that frequency

i recently purchased the Z1 compact and i have to say the LTE for it is spotty depending on where i am. Also, I'ved noticed that the phone shuts down data when connected to my wifi at home.

I am using StraightTalk (ATT service) and get LTE in places. Someone said ATT uses two bands and only one is compatible. Yes the data turns off when on wifi.. I think.

Anyone know if this phone can be used on Cricket Wireless GSM?

halothirteen said:
Anyone know if this phone can be used on Cricket Wireless GSM?
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Click to collapse
Yup. It sure can - I know since I'm using it on Cricket as we speak.

Also using it on cricket with no issues (other than no LTE)
Sent from my D5503 using Tapatalk

Decided to get this phone knowing that LTE will be hit and miss with no band 17. Does anyone know if there is a way to find out what LTE bands AT&T uses in the city you live in?

Lte not working. Help please.

I have an htc m8 unlocked international model and which does support 1800mhz frequency for lte, the same my network provides for lte. But i am unable to run lte. tried my sim card on an iphone 6 and lte works just fine. Please help me.

yousafkhar said:
I have an htc m8 unlocked international model and which does support 1800mhz frequency for lte, the same my network provides for lte. But i am unable to run lte. tried my sim card on an iphone 6 and lte works just fine. Please help me.
Click to expand...
Click to collapse
is 3g working ok?
do you get 4g on the screen at all?

Yes
m112 said:
is 3g working ok?
do you get 4g on the screen at all?
Click to expand...
Click to collapse
Yes 3g works but on other carrier. The carrier which is providing Lte doesnt have 3g.

LTE signals not getting
m112 said:
is 3g working ok?
do you get 4g on the screen at all?
Click to expand...
Click to collapse
The same problem is getting me as well. According to the Network provider(WaridTel Pakistan) this model of HTC One M8 is not supported in Pakistan or Carrier Lock something even the LTE option is appearing in network modes. Meanwhile 3G and edge is working perfectly.
HTC one Mdoel Name: OP6B160
Network: waridTel (LTE 1800 MH)

Data issues

So I have a Verizon model M9 using it with a GSM sim. Its a data sim which can roam on both T-Mobile and AT&T.
Here is my issue, T-Mobile is only EDGE in my area, and the phone works perfectly fine on that, but for some strange reason on AT&T HSPA+/3G It will work for a few min and all the sudden stop working even though "H" will still be at the top of the phone like data is there when its went away.
Its not the carrier, or the sim as this exact sim works perfectly fine with my Verizon G4, iPhone 6S, iPhone 5, and so on with no issues.
Any suggestions for those who use this model on another carrier? Or any suggestions what May be causing this?
I've changed my SKU, S-off, root, etc even running stock roms (non verizon roms) , same issue so its not Verizon software causing it. Also tried setting it to WCDMA and other settings and the issue still occurs.
Any ideas would be great! I really like this phone and hate to have to sell it and go find something else or may end up going back to my G2 for my 2nd line. Could Fast Dormancy cause this?
Thanks!

You're going to be handicapped by the physical limitations of the Verizon M9. Check out what bands T-Mobile & AT&T use and see which ones match up with your moel. The bands that the Verizon HTC M9 supports are:
LTE Band 13/4 (700/1700MHz),
CDMA/1xEVDO Rev. A (800/1900 MHz)
EDGE/GSM (850/900/1800/1900)
HSPA/UMTS(850/900/1900/2100)

computerslayer said:
You're going to be handicapped by the physical limitations of the Verizon M9. Check out what bands T-Mobile & AT&T use and see which ones match up with your moel. The bands that the Verizon HTC M9 supports are:
LTE Band 13/4 (700/1700MHz),
CDMA/1xEVDO Rev. A (800/1900 MHz)
EDGE/GSM (850/900/1800/1900)
HSPA/UMTS(850/900/1900/2100)
Click to expand...
Click to collapse
Thanks but it's not a matter of being supported. It supports AT&T 100% 2G and 3G wise. I get HSPA+ just fine without issue its a matter of the phone some how loosing data connection randomly until putting it into airplane mode or rechoosing the network under network selection. But it's fully supported AT&T 3G wise.
Sent from my iPhone using Tapatalk

There is a thread in the forums by stifilz to enable more bands but if that's not the issue than something that worked for me was here

bigp951 said:
There is a thread in the forums by stifilz to enable more bands but if that's not the issue than something that worked for me was here
Click to expand...
Click to collapse
Thanks I might try that. Yeah it's not the matter of the bands is the issue.
What's strange is I'm not having signal issues as signal is perfect it's just the weird loosing data issue while signal is perfectly fine. But worth a shot.
Sent from my iPhone using Tapatalk

Issue connecting to 4G

So a mate has a P2 and can't seem to get it to connect to 4G. The SIM card and network is Vodafone UK.
What I know/have tried:
- SIM in both sim slots will connect to 3.5G (HSDPA) on Vodafone network
- A different SIM (Three UK) did connect to 4G in the SIM slot 1 (did not try SIM slot 2)
- Settings says 4G preferred network is selected
- By typing *#*#4636#*#* into dialer and going to phone info displays LTE is selected as one of the preferred networks
- The same SIM (Vodafone UK one) connects to 4G in his old phone and has done in all his old phones
- APN settings are correct, verified by Vodafone support plus myself looking online
So he talked to Vodafone support again today who said try speed tests in 3 different locations and report back. He has done 1 which is 14mbps down and 3mbps up which is slow for 4G (I get 64mbps down and 24mbps up, different network but shows his is slow and likely not 4G). Similarly we we know the device can connect to 4G from using the Three UK SIM.
My gut instinct is it's a network issue, all device settings seem okay, nothing is screaming out of place. The issue though is that the SIM has connected to 4G in his other devices so confuses me.
So, I'd love your thoughts and inputs on this. Any suggestions welcome that may help! Thanks!

matt4321 said:
So a mate has a P2 and can't seem to get it to connect to 4G. The SIM card and network is Vodafone UK.
What I know/have tried:
- SIM in both sim slots will connect to 3.5G (HSDPA) on Vodafone network
- A different SIM (Three UK) did connect to 4G in the SIM slot 1 (did not try SIM slot 2)
- Settings says 4G preferred network is selected
- By typing *#*#4636#*#* into dialer and going to phone info displays LTE is selected as one of the preferred networks
- The same SIM (Vodafone UK one) connects to 4G in his old phone and has done in all his old phones
- APN settings are correct, verified by Vodafone support plus myself looking online
So he talked to Vodafone support again today who said try speed tests in 3 different locations and report back. He has done 1 which is 14mbps down and 3mbps up which is slow for 4G (I get 64mbps down and 24mbps up, different network but shows his is slow and likely not 4G). Similarly we we know the device can connect to 4G from using the Three UK SIM.
My gut instinct is it's a network issue, all device settings seem okay, nothing is screaming out of place. The issue though is that the SIM has connected to 4G in his other devices so confuses me.
So, I'd love your thoughts and inputs on this. Any suggestions welcome that may help! Thanks!
Click to expand...
Click to collapse
I dont know the device or network specifically But I know that the device has to support the same lte bands that the carrier broadcasts in LTE in that area Just because the carrier broadcasts say 900mhtz in LTE, if the device dont support 900 in lte then it wont get it. I have had cases wher 3g is the same freq as 4g it still wont pick it up If you get what I am saying. May be a issue or not.

to further add he might take one of the old devices and use a signal catching app to see what lte bands are broadcasted in his area then compare to device

Thanks @TheMadScientist, all suggestions welcome still. I'm gunna continue to keep an eye on this, research answers and send him a link to this so he can test anything on the device.

matt4321 said:
Thanks @TheMadScientist, all suggestions welcome still. I'm gunna continue to keep an eye on this, research answers and send him a link to this so he can test anything on the device.
Click to expand...
Click to collapse
We get this issue a lot using sprint phones unlocked international gsm. A lot of carriers seem to not use the same lte bands.
Then naturly verizon devices come gsm unlocked but verizons radios are crap and do not pick anything up half the time. My veriz g5 can get lte next town over cause they use a supported band and no towers near me use it. So i get 3g. And a lot of h h+ i ise lte discovery as the app on mine.
Just hope this isnt his issue as its a harware compatibility .

TheMadScientist said:
We get this issue a lot using sprint phones unlocked international gsm. A lot of carriers seem to not use the same lte bands.
Then naturly verizon devices come gsm unlocked but verizons radios are crap and do not pick anything up half the time. My veriz g5 can get lte next town over cause they use a supported band and no towers near me use it. So i get 3g. And a lot of h h+ i ise lte discovery as the app on mine.
Just hope this isnt his issue as its a harware compatibility .
Click to expand...
Click to collapse
So I checked the network and the device (on GSM arena) and it seems 4G bands are supported. But I'll try that lte discovery app with him soon you mentioned and see what results that yields

@matt4321
http://www.techadvisor.co.uk/how-to...r-phone-is-supported-by-your-network-3597426/
You should check the manuals if there is support for 2600 frequency on phone.
Maybe the phone supports 800/1800(cos 3 is on 1800) and you don't have 800 band in area.
You will have to contact Lenovo and ask them to change baseband or whatever...
or Perhaps get a new phone with support for 2600

Had the same problem using a LG G3. I tried this App to trigger LTE only. Then the Phone connect to the LTE network.
https://play.google.com/store/apps/details?id=com.tapbase.LTEswitcher&hl=de