Unlocked US HTC 10 won't connect to 3G Band 900 - HTC 10 Questions & Answers

Hi everyone. I recently purchased a HTC 10 from swappa, the unlocked version. The thing is, on gsmarena and HTC US page says that this model works on 850/900Mhz bands for UMTS (H/H+), but here in DR, i'm trying to use it with Orange Dominicana, who works on 900Mhz band for UMTS and the phone doesnt... It goes from LTE to 2G, and when on LTE i cant receive phone calls. I need to put it on 2G to receive calls, but the data sucks at those speeds.
Anyone knows a way that i can be sure if the phone really doesn't have this particular band (900Mhz) for UMTS? or a way to see if i can activate it if its available but inactive? I try 2 phones (a friend of mine bought one, same model) and is the exact same behavior on both.

See my signature about adding bands.
At least you can check if it is enabled and perhaps try to add it too

kakaroto said:
Hi everyone. I recently purchased a HTC 10 from swappa, the unlocked version. The thing is, on gsmarena and HTC US page says that this model works on 850/900Mhz bands for UMTS (H/H+), but here in DR, i'm trying to use it with Orange Dominicana, who works on 900Mhz band for UMTS and the phone doesnt... It goes from LTE to 2G, and when on LTE i cant receive phone calls. I need to put it on 2G to receive calls, but the data sucks at those speeds.
Anyone knows a way that i can be sure if the phone really doesn't have this particular band (900Mhz) for UMTS? or a way to see if i can activate it if its available but inactive? I try 2 phones (a friend of mine bought one, same model) and is the exact same behavior on both.
Click to expand...
Click to collapse
This is happening to me too! Exactly the same problem, were you able to solve this @kakaroto?

c_sar007 said:
This is happening to me too! Exactly the same problem, were you able to solve this @kakaroto?
Click to expand...
Click to collapse
Also interested

Have you tried anithing?
NickKG81 said:
Also interested
Click to expand...
Click to collapse
Have you tried anithing? I would like to have some ideas before doing anithing stupid.

c_sar007 said:
Have you tried anithing? I would like to have some ideas before doing anithing stupid.
Click to expand...
Click to collapse
I haven't tried adding bands yet. I'm interested since Viva is rolling out 4G service in the next few months. If my HTC 10 isn't compatible with their 4G or 3G (even though they said it will be), then I'll be looking at adding more bands.

stifilz said:
See my signature about adding bands.
At least you can check if it is enabled and perhaps try to add it too
Click to expand...
Click to collapse
Thanks for the sugestion. I did not follow your method since CDMA Tools is no longrer available in DEMO version and licences are really expensive (100+ Dollars) to just test. I followed the method suggested by @fffft (That can be found here) since it applyes to all Qualcomm devices using QPST and QXMD.
Long story short, I had to Root, set a custom recovery, a custom ROM and even a custom Kernel to try the method but It did not work to me. The irony of all of this is that technically I my HTC 10 has all bands available to be used. See the picture Attached.
@stifilz do you have any Ideas?

stifilz said:
See my signature about adding bands.
At least you can check if it is enabled and perhaps try to add it too
Click to expand...
Click to collapse
Thanks for the sugestion. I did not follow your method since CDMA Tools is no longrer available in DEMO version and licences are really expensive (100+ dollars) to just test. I followed the method suggested by @fffft (That can be found here) since it applyes to all Qualcomm devices using QPST and QXMD.
Long story short, I had to Root, set a custom recovery, a custom ROM and even a custom Kernel to try the method but It did not work to me. The irony of all of this is that technically I my HTC 10 has all bands available to be used. See the picture Attached.
@stifilz do you have any Ideas?

Related

[Q] Differenve between EUR and SEA version - samw d855 model

Hy!
I just bought a new phone and wanted to find out if there are any differences compared to the EUR version?
The model number is the same - it looks like everything is the same except at the software updates: its v10I-SEA-XX not v10g-EUR-XX.
The only difference I found is that the updates are arriving earlier.
Can somebody confirm the differences please?
Thanks!
Wikh said:
Hy!
I just bought a new phone and wanted to find out if there are any differences compared to the EUR version?
The model number is the same - it looks like everything is the same except at the software updates: its v10I-SEA-XX not v10g-EUR-XX.
The only difference I found is that the updates are arriving earlier.
Can somebody confirm the differences please?
Thanks!
Click to expand...
Click to collapse
My SEA version did not give the option to operate on UK LTE networks.
jah said:
My SEA version did not give the option to operate on UK LTE networks.
Click to expand...
Click to collapse
Thank you!
Well I live in 2 countries and neither of them has LTE coverage in the whole country.
And since 100mb, 500mb or the max is 1gb bundle everywhere I dont feel that I need LTE. My internet is always running out even with 3g.
Any other diffrrence?
Wikh said:
Thank you!
Well I live in 2 countries and neither of them has LTE coverage in the whole country.
And since 100mb, 500mb or the max is 1gb bundle everywhere I dont feel that I need LTE. My internet is always running out even with 3g.
Any other diffrrence?
Click to expand...
Click to collapse
No other technical differences from what I remember. I only the Euro version now.
jah said:
My SEA version did not give the option to operate on UK LTE networks.
Click to expand...
Click to collapse
Hi Jah
There is a work round to this you can access the hidden menu
Dial *#*#4636#*#* and on preferred network type, choose lte/gsm/wcdma
This way you can get 4G without having to mod or root the phone.
I am pretty happy with stock at the moment. I think you need to reset it each time you reboot but to be honest not having to do that very often either.
I hope that this helps
Kaid
KaidM said:
Hi Jah
There is a work round to this you can access the hidden menu
Dial *#*#4636#*#* and on preferred network type, choose lte/gsm/wcdma
This way you can get 4G without having to mod or root the phone.
I am pretty happy with stock at the moment. I think you need to reset it each time you reboot but to be honest not having to do that very often either.
I hope that this helps
Kaid
Click to expand...
Click to collapse
Yes also with magic menu 3845#*855# but once you restart you need to use the magic menu again as it lost LTE connection. Also this version is not covered by European LG warranty.

[Q] ZE551ML at&t APN settings

I am not getting 4G LTE. It is staying on H (hspa). I have the one plus one and get LTE.
The info online says this phone should have all of the bands required.
Any ideas.
Thank you
This is the 4gb ram 64gb ROM version
jross3r said:
I am not getting 4G LTE. It is staying on H (hspa). I have the one plus one and get LTE.
The info online says this phone should have all of the bands required.
Any ideas.
Thank you
This is the 4gb ram 64gb ROM version
Click to expand...
Click to collapse
Check Settings - Mobile Network settings - Preferred Network Type and set it to LTE if you have this option and is not already set.
But I doubt that this is your problem. You bought the Taiwanese phone, didn't you? While OnePlus supports all ATT LTE bands (17, 4, 2), the Taiwanese Zenfone 2 doesn't support band 17 (nor ww model), which is otherwise typical for less inhabited aeries in the USA, but it seems that is widely used by ATT. Try the phone in the downtown or another city and you'll probably catch the LTE on other frequencies.
Yes I purchased it from Taiwan but all of the sites show so many bands for this phone. Asus does a terrible job with their model numbers. There are so many different versions with the same model number. There is a 4 g setting not lte and that is selected. I did pick up 4g while driving through part of the city.
Is there going to be a US model?
Thank you
Yes. There is a US model and its supposed to be released in the next month or so. The link below, click on specs, shows the LTE bands for each region. Clearly shows the Taiwanese model not having the 17 band.
http://www.asus.com/Phones/ZenFone_2_ZE551ML
That stinks. I took that page as it will work in all of these markets. Oh well
Thanks
jross3r said:
I am not getting 4G LTE. It is staying on H (hspa). I have the one plus one and get LTE.
The info online says this phone should have all of the bands required.
Any ideas.
Thank you
This is the 4gb ram 64gb ROM version
Click to expand...
Click to collapse
Where in US are you?
There are some areas in the US that are only on LTE band 17. I suspect that's OP's issue.
mrcamp said:
There are some areas in the US that are only on LTE band 17. I suspect that's OP's issue.
Click to expand...
Click to collapse
I looked at it and TW, WW and US all have 1700 bands if that's what you are referring to. If not can you shed some light?
lordpipa said:
I looked at it and TW, WW and US all have 1700 bands if that's what you are referring to. If not can you shed some light?
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Click to collapse
The topic is about bands not frequencies. There is nothing such as 1700 LTE band. Actually both USA and TW phones work on approximate LTE 700 MHz but bands are different because uplink and downlink are different. So TW model works on band 28 and US one on 17.
piskr said:
The topic is about bands not frequencies. There is nothing such as 1700 LTE band. Actually both USA and TW phones work on approximate LTE 700 MHz but bands are different because uplink and downlink are different. So TW model works on band 28 and US one on 17.
Click to expand...
Click to collapse
I see now. Tnx for the quick response. Hopefully I'm not outta luck when the phone arrives tomorrow from TW. Do you think that flashing later on a radio or baseband will solve this issue?
It's not that simple. Luckily Intel chip supports all LTE bands. But they must be activated in kernel too. Maybe someone will find the method to activate the missed ones. Otherwise you are not so bad. With TW phone you are short of only one LTE band of four major in the USA, Europeans missed 2 of 3.
piskr said:
It's not that simple. Luckily Intel chip supports all LTE bands. But they must be activated in kernel too. Maybe someone will find the method to activate the missed ones. Otherwise you are not so bad. With TW phone you are short of only one LTE band of four major in the USA, Europeans missed 2 of 3.
Click to expand...
Click to collapse
Thanks again for that. I see a bright future for this. Appreciate all this info. And definitely will see u around.
CT and work in long island NY. I hit 4g LTE on my way to work but most of the time have hsta+ which is not terrible.
I'm stuck with NO data on my Zenfone 2 with T-Mobile.
Bl00dRunzC0ld said:
I'm stuck with NO data on my Zenfone 2 with T-Mobile.
Click to expand...
Click to collapse
Check your APN settings.
Should be
fast.t-mobile.com
make sure the dash is in there.
alose said:
Check your APN settings.
Should be
fast.t-mobile.com
make sure the dash is in there.
Click to expand...
Click to collapse
Thanks that worked. I've always used fast.tmobile.com for my connection and never had issues until today. Now I'm happy and on 4g.
lordpipa said:
I see now. Tnx for the quick response. Hopefully I'm not outta luck when the phone arrives tomorrow from TW. Do you think that flashing later on a radio or baseband will solve this issue?
Click to expand...
Click to collapse
Frequency wise is matches everything AT&T needs, i just picked up my 4g/64gb TW model, i'll be playing with apn's to see if i can get lte to pop. Only getting H+ so far.
Correction, shipped with WW firmware, no 700mhz for us.
More - As posted above, this Taiwanese version is missing the LTE band 17. And there are some areas that this may be the only band available, so you will not have LTE in those situations.
Thanks so much.... I was having a heck of time here with my Zenfone 2 in Tucson AZ on T-mobile.... I was stuck on 2G... but updating the APN to fast.t-mobile.com and 2 reboots seems to have done the trick. So glad I don't have to EBAY this! THANKS AGAIN.... Loving this thing so far!
Well ****! This is where I am stuck win H+ on ATT.
No way around this huh unless someone does a new rom? Or is it hardwired?

[Q] G3 D858 dual SIM root - unlocking other LTE/4G bands?

Hi guys,
I've posted in the AUS thread over in the main board, but it doesn't seem to be getting much attention:
http://forum.xda-developers.com/lg-g3/general/lg-g3-australia-thread-au-t2841345/page45
It's been reported and tested among several android devices that phones using the QUALCOMM chipset can now have various 4G/LTE bands UNLOCKED following a relatively easy - but fairly tedious process. as the G3 (and specifically, the dual SIM D858) sports the MSM8975AC Snapdragon 801 chipset...I ask the question:
Has anyone successfully unlocked 1 or more LTE/4G bands? I'd buy this phone if it were possible for root, then a successful unlock of all popular 4G bands here in Australia, specifically B28 (FDD) 700Mhz. Anyone who has tried, failed, succeeded or can provide additional details, please respond!
Thanks
Anyone?
Might be worth closing this, as G3 owners apparently don't visit here anymore.
*LOCK*
I got my D858HK in the US and am here until August. I'll be primarily using in India and China. I tried one of the procedures using QPST and QXDM to write all the 4G/LTE bands to memory, thereby "unlocking" them. Didn't seem to work on AT&T's (US) network. I'm only getting 3G. It's possible I didn't do something correctly, however...
I also tried going into the hidden menu, but while I am able to select/deselect the check marks for the different bands, there is no way to save the selections. At least no way that I can find. I would expect that I should be able to get 4G (even if not LTE) if the unlocking was successful.
Not that this helps you much, but I am also interested in a way, if possible. I'll probably give it another shot later this week or next week. I'll come back and post if I have any success.
flueterflam said:
I got my D858HK in the US and am here until August. I'll be primarily using in India and China. I tried one of the procedures using QPST and QXDM to write all the 4G/LTE bands to memory, thereby "unlocking" them. Didn't seem to work on AT&T's (US) network. I'm only getting 3G. It's possible I didn't do something correctly, however...
I also tried going into the hidden menu, but while I am able to select/deselect the check marks for the different bands, there is no way to save the selections. At least no way that I can find. I would expect that I should be able to get 4G (even if not LTE) if the unlocking was successful.
Not that this helps you much, but I am also interested in a way, if possible. I'll probably give it another shot later this week or next week. I'll come back and post if I have any success.
Click to expand...
Click to collapse
I bought the G4 dual SIM...I've posted in busier threads there in the general forum where others will actually respond. Hopefully we can get this soon...just need an unlocked bootloader on G4...
RoOSTA
Sounds like you tried this thread. Thank goodness someone did, because I couldn't even download QPST, but I'm trying to get on T-mobile. Like you, I entered the secret menu with 3845#*858# What I find odd is that the LTE band selection indicates 1,2,3,4,5,7,8,17,20,40 But frequencycheck.com shows that these phones actually do 1,3,7,38,39,40,41. Those latter bands are crucial for China, so even if this setting were to work, it may well break China support.
flueterflam said:
I got my D858HK in the US and am here until August. I'll be primarily using in India and China. I tried one of the procedures using QPST and QXDM to write all the 4G/LTE bands to memory, thereby "unlocking" them. Didn't seem to work on AT&T's (US) network. I'm only getting 3G. It's possible I didn't do something correctly, however...
I also tried going into the hidden menu, but while I am able to select/deselect the check marks for the different bands, there is no way to save the selections. At least no way that I can find. I would expect that I should be able to get 4G (even if not LTE) if the unlocking was successful.
Not that this helps you much, but I am also interested in a way, if possible. I'll probably give it another shot later this week or next week. I'll come back and post if I have any success.
Click to expand...
Click to collapse
successful in unlocking WCDMA/LTE bands in LG G3 D858HK
i was able to unlock the additional WCDMA and LTE bands in my LG G3 D858HK varient using QPST and QXDM.
The unlocking of WCDMA bands was done using QPST and the unlocking of LTE bands was done using QXDM.
Another important thing to note is that i was using MOKEE ROM 7.1.2 while doing the band unlocking.
NV MANAGER couldn't read from phone when i tried with the stock rom.

Is there a legitimate GSM version of this phone in Red for the USA?

So I was looking to buy various HTC phones in different colors. I saw some places online selling the HTC M8 in about 6 different colors: Blue, Gold , Gray, Pink, Red, and Silver. The problem is that as far as I have seen, this phone only comes officially in Gold, Gray, and Silver (at least in the USA). And I've see reviews of others buying in the other three colors stating that the phones were knockoffs or fake. Does anyone know if there is a legitimate GSM version of this phone in Red for the USA? If so, where can I purchase it?
Thanks.
If you mean, a GSM version intended for US (AT&T or T-Mobile) than no, there were no red version ever released (only red Verizon M8 variant). There was a red version released in UK, which would be GSM. But you would probably need to s-off the device, change CID and firmware in order to have correct band support on either of the two US networks. And doing this can be problematic (you may not have LTE support). May not be worthwhile effort, just to get a red casing.
redpoint73 said:
If you mean, a GSM version intended for US (AT&T or T-Mobile) than no, there were no red version ever released (only red Verizon M8 variant). There was a red version released in UK, which would be GSM. But you would probably need to s-off the device, change CID and firmware in order to have correct band support on either of the two US networks. And doing this can be problematic (you may not have LTE support). May not be worthwhile effort, just to get a red casing.
Click to expand...
Click to collapse
That's what I figured but wasn't completely sure since sometimes different variants get released and are not so well known. So there is a UK version in red that is legitamate? And yeah, that's a lot of work, but if it does work I'm willing to do it.
The5thSurvivor said:
So there is a UK version in red that is legitamate? And yeah, that's a lot of work, but if it does work I'm willing to do it.
Click to expand...
Click to collapse
Yes, it's legitimate: https://www.gsmarena.com/htc_one_m8_now_available_in_red_and_pink_color_options-news-9132.php
But it seems like a weird tradeoff to (most likely) lose LTE just for a red phone. I usually get a case for my phone anyway (although I know lots of folks don't), so a red case is a much easier solution!
redpoint73 said:
Yes, it's legitimate: https://www.gsmarena.com/htc_one_m8_now_available_in_red_and_pink_color_options-news-9132.php
But it seems like a weird tradeoff to (most likely) lose LTE just for a red phone. I usually get a case for my phone anyway (although I know lots of folks don't), so a red case is a much easier solution!
Click to expand...
Click to collapse
Thanks for the confirmation.
Hmmm, what about an actual shell replacement in different colors? Do those exist? Haven't seen them for sale anywhere.
The5thSurvivor said:
Hmmm, what about an actual shell replacement in different colors? Do those exist? Haven't seen them for sale anywhere.
Click to expand...
Click to collapse
I've heard of folks swapping the back covers (and the front pieces are just inserts, so they seem easy to remove/replace). So I think replacement certainly exist, but I don't know about red ones. Especially since the red version is a pretty obscure variant, to begin with.
Following website has a full teardown of the M8. Obviously, you aren't doing all that, but it does show how to remove the back cover and front pieces: https://www.ifixit.com/Teardown/HTC+One+(M8)+Teardown/23615
Personally, I try to stay away from taking apart these devices. I've had a bad history of taking apart electronic devices, going back to iPod days. You'll see some folks around these forums swear it's easy (taking these phones apart). But even though I'm an engineer, and a generally careful person; something always seems to go wrong and I end up making the device worse than it started! Scratched up casing on the devices, is one problem I always seem to get. Although if you are replacing the casing anyway, maybe this is a moot point. I also see a lot of reports of folks taking apart these phones, and then one thing or another not working properly when they re-assemble (breaking the ribbon cables is common). You may have better luck, but just wanted to throw that out there.
redpoint73 said:
But you would probably need to s-off the device, change CID and firmware in order to have correct band support on either of the two US networks. And doing this can be problematic (you may not have LTE support).
Click to expand...
Click to collapse
So doing this can definitely allow per se, the European version of a phone to work in the USA at least with H or H+ and possibly LTE?
I ask because I had purchased a blue M7 and it was the European international version. Out of the box it was already with S-Off, Super CID, but couldn't get 3G or 4G, just 2G with T-Mobile and no signal with AT&T. I didn't change the firmware though.
The5thSurvivor said:
So doing this can definitely allow per se, the European version of a phone to work in the USA at least with H or H+ and possibly LTE?
Click to expand...
Click to collapse
Changing firmware (and therefore radio baseband) should get you 3G. I hesitate to say "definitely" since that is somewhat of a dangerous word when working with these devices! But I am pretty confident that 3G would not be a problem.
LTE is another story. Lots of folks on this forum have had problems getting LTE service after "converting" to the proper radio (which support the LTE bands used by their local carrier). So I'm pretty skeptical on LTE, and I wouldn't count on getting it. Get the M8 version intended for your carrier, to guarantee LTE connectivity.
The5thSurvivor said:
I ask because I had purchased a blue M7 and it was the European international version. Out of the box it was already with S-Off, Super CID, but couldn't get 3G or 4G, just 2G with T-Mobile and no signal with AT&T. I didn't change the firmware though.
Click to expand...
Click to collapse
T-Mobile uses Bands 2 (1900) and 4 (AWS or 1700/2100) for 3G. From what I can tell, the Euro version M7 should support 3G band 2 (although I don't know much about that device, never owned it) and from what I understand, T-Mobile migrated 3G service to Band 2 in most areas. But if your area is still using AWS when you tried the M7, it would explain why 3G didn't work (Euro M7 doesn't support AWS band on 3G).
AT&T uses bands 850, 1900 and 2100 for 3G. All of which should be supported on the Euro M7, from what I can tell. And even if you didn't have 3G, you should at least have gotten 2G and voice service. So I think something else was going wrong there, besides band support.
redpoint73 said:
Changing firmware (and therefore radio baseband) should get you 3G. I hesitate to say "definitely" since that is somewhat of a dangerous word when working with these devices! But I am pretty confident that 3G would not be a problem.
LTE is another story. Lots of folks on this forum have had problems getting LTE service after "converting" to the proper radio (which support the LTE bands used by their local carrier). So I'm pretty skeptical on LTE, and I wouldn't count on getting it. Get the M8 version intended for your carrier, to guarantee LTE connectivity.
Click to expand...
Click to collapse
I see. I wish every region would just use the same bands everywhere. It sucks to have the phone you want but can't get LTE even though the device has support for LTE. I've been looking where to get the specific HTC phones that I want new, but the only people selling them new still are all overseas with either the European, Australian, or Asian variants. I'd love to buy an M7, M8, and M9 for the USA brand new.
redpoint73 said:
T-Mobile uses Bands 2 (1900) and 4 (AWS or 1700/2100) for 3G. From what I can tell, the Euro version M7 should support 3G band 2 (although I don't know much about that device, never owned it) and from what I understand, T-Mobile migrated 3G service to Band 2 in most areas. But if your area is still using AWS when you tried the M7, it would explain why 3G didn't work (Euro M7 doesn't support AWS band on 3G
Click to expand...
Click to collapse
I'm in NYC. Out of the box, my Euro M7 only gets EDGE with T-Mobile. Just came came across this. It pretty much explains what you said as to why 3G didn't work.
redpoint73 said:
AT&T uses bands 850, 1900 and 2100 for 3G. All of which should be supported on the Euro M7, from what I can tell. And even if you didn't have 3G, you should at least have gotten 2G and voice service. So I think something else was going wrong there, besides band support.
Click to expand...
Click to collapse
With AT&T, my Euro M7 gets no signal. 2G doesn't work since AT&T shut down their 2G. I was very surprised that 3G didn't work with AT&T at all. But as you mentioned, perhaps changing firmware will get 3G working hopefully.
The5thSurvivor said:
I see. I wish every region would just use the same bands everywhere. It sucks to have the phone you want but can't get LTE even though the device has support for LTE.
Click to expand...
Click to collapse
It's massively complicated, since frequencies are divided up by every type of radio transmitter used by mankind. Many of which existing before cell phones were invented. Add to that, the fact that the US carriers compete with each other for purchase of said bands, instead of just all using the same ones (which happens in many other countries) and yes, you have a huge mess.
The5thSurvivor said:
With AT&T, my Euro M7 gets no signal. 2G doesn't work since AT&T shut down their 2G.
Click to expand...
Click to collapse
Wow, AT&T is my carrier, and I didn't even realize that happened! I've taken it for granted for so long, that I can just throw my SIM in any phone (as long as it is unlocked) and at least have voice and 2G work.
I learned something today!
Yeah, that is a huge mess. And I found out earlier this year myself that AT&T had discontinued their 2G January of last year. T-Mobile will follow suit next year and then Verizon the year after.

Where can I find the truth about LTE-bands and G8 models?

Hi,
I have problems finding "facts" about the G8 and the LTE bands different models support.
On some pages, like
https://www.getdroidtips.com/lg-g8-...lm-g820um-g820n-g820ua-g820v-g820tm-and-more/
they claim that if you go for the G820QM or G820QM7 you will have maximum coverage.
But either I'm doing things wrong , or , the truth is more complicated.
The bands I really NEED in Sweden are 3,7,8 & 20 , but since I travel a bit I would like as many bands as possible open.
My phone was from the beginning an AT&T bloatware LMG820UM (A9), but now I think it's more like a LMG820QM (A12).
(And unfortunately Band 8 doesn't work. )
Does anyone have a good link to a page that tells the truth or a good way to open up bands ?
Thanks!
Lakritssmurfen said:
Hi,
I have problems finding "facts" about the G8 and the LTE bands different models support.
On some pages, like
https://www.getdroidtips.com/lg-g8-...lm-g820um-g820n-g820ua-g820v-g820tm-and-more/
they claim that if you go for the G820QM or G820QM7 you will have maximum coverage.
But either I'm doing things wrong , or , the truth is more complicated.
The bands I really NEED in Sweden are 3,7,8 & 20 , but since I travel a bit I would like as many bands as possible open.
My phone was from the beginning an AT&T bloatware LMG820UM (A9), but now I think it's more like a LMG820QM (A12).
(And unfortunately Band 8 doesn't work. )
Does anyone have a good link to a page that tells the truth or a good way to open up bands ?
Thanks!
Click to expand...
Click to collapse
Probably the most trust worthy I've seen would be GsmAreana. If you follow this link it's for the G8, and it indicates the us Open version supports band 8.
'Open up bands'? Doesn't exist, to my knowledge. Some think the 'hidden system menu' has an option to 'select bands', but in my experience all that menu does is allow you to 'test' for certain bands, to see if they connect. It doesn't 'make it available', as some wish. For the most part, if it's not listed as being a band the rom supports, it's probably not going to connect to it.
LG G8 ThinQ - Full phone specifications
www.gsmarena.com
Now I have tried a few different "QM" versions on my phone (that once was an AT&T with "UM").
Right now I flashed it "T-mobile" with a pink start up-screen.
None of those crossflashed firmwares seem to make my phone to connect to LTE band 8.
(My old G7 connects to band8 very often, with good signal).
I'm starting to think that crossflashing doesn't change the frequency bands at all..
If I go in to the service menu, and ONLY pick band 8, it will connect and use only that.
If I select 3,7,8 & 20 it will never connect to 8.
I'm a bit lost with this.. I wonder if my phone still, deep inside, believes it is an UM and shouldn't use band 8.
Maybe time to Ebay it..
Lakritssmurfen said:
Now I have tried a few different "QM" versions on my phone (that once was an AT&T with "UM").
Right now I flashed it "T-mobile" with a pink start up-screen.
None of those crossflashed firmwares seem to make my phone to connect to LTE band 8.
(My old G7 connects to band8 very often, with good signal).
I'm starting to think that crossflashing doesn't change the frequency bands at all..
If I go in to the service menu, and ONLY pick band 8, it will connect and use only that.
If I select 3,7,8 & 20 it will never connect to 8.
I'm a bit lost with this.. I wonder if my phone still, deep inside, believes it is an UM and shouldn't use band 8.
Maybe time to Ebay it..
Click to expand...
Click to collapse
So it does connect to 8? As you say. Well that means the other bands have a stronger signal, and that's why they are being chosen and not 8. Your other phone that gets 8 well, does it have the ability to connect to the other bands on other phone? Maybe that's why that one always chooses 8?
And yes, I guarantee you, a different rom will have different bands enabled. Just the way it is.
AsItLies said:
So it does connect to 8? As you say. Well that means the other bands have a stronger signal, and that's why they are being chosen and not 8. Your other phone that gets 8 well, does it have the ability to connect to the other bands on other phone? Maybe that's why that one always chooses 8?
And yes, I guarantee you, a different rom will have different bands enabled. Just the way it is.
Click to expand...
Click to collapse
Thanks for your reply.
Yes, my other phone, the LG G7, connects to all bands needed (3,7,8,20) when I travel to work without any problems.
I'll give the G8 some more tries.. but we don't understand each other
Lakritssmurfen said:
Thanks for your reply.
Yes, my other phone, the LG G7, connects to all bands needed (3,7,8,20) when I travel to work without any problems.
I'll give the G8 some more tries.. but we don't understand each other
Click to expand...
Click to collapse
You can pull the carrier policy with QPST,and it will show you bands that are supported for the particular firmware you're using and find out.
Surgemanxx said:
You can pull the carrier policy with QPST,and it will show you bands that are supported for the particular firmware you're using and find out.
Click to expand...
Click to collapse
Thank you for that suggestion! I didn't know, but now I will try to read out that "carrier policy" next time I have some "play"- time .
(Sorry about the very slow reply, I was on a vacation)
Thanks!

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