Coming from Verizon - firmware questions - One (M8) Q&A, Help & Troubleshooting

Hello everyone. I have a Verizon M8 (unlocked/S-off), and I have switched to AT&T.
In order for my phone to work, I loaded ARHD (great ROM, btw), as the ROM I was using while I was on VZW did not want to play nice with the AT&T SIM card.
Everything is now working except for WiFi and LTE.
Based on what I've read, LTE on AT&T ain't happening on my device due to lack of frequency band support. But the WiFi problem is likely related to firmware, and therefore (I assume), fixable.
Here's my question: is it possible after I SuperCID my phone, to install the WWE firmware to fix the WiFi problem? Or will this brick my phone?
Thanks!

BBEgo said:
Hello everyone. I have a Verizon M8 (unlocked/S-off), and I have switched to AT&T.
In order for my phone to work, I loaded ARHD (great ROM, btw), as the ROM I was using while I was on VZW did not want to play nice with the AT&T SIM card.
Everything is now working except for WiFi and LTE.
Based on what I've read, LTE on AT&T ain't happening on my device due to lack of frequency band support. But the WiFi problem is likely related to firmware, and therefore (I assume), fixable.
Here's my question: is it possible after I SuperCID my phone, to install the WWE firmware to fix the WiFi problem? Or will this brick my phone?
Thanks!
Click to expand...
Click to collapse
If your phone is from V you should stick to Verizon firmwares and kernels. There may be exception, but as far as i know Verizon and Sprint phones have other differences from GSM variants, not only firmware and/or kernel etc. Yes, your device can be used WW, but i'm pretty sure you cannot convert to full WWE. I went so far that i used QPST configurator and RFNV manager to unlock all the bands of my phone and yet i can't get LTE to work. I do hope someone here prove me wrong, but for now i'm happy i can use my phone in eastern Europe.

Thanks for the input. I was afraid of that. So I guess I'm stuck until new VZW firmware gets released, and then maybe my WiFi will work?
I guess I could look for a ROM that is using a different base and try that.

BBEgo said:
Thanks for the input. I was afraid of that. So I guess I'm stuck until new VZW firmware gets released, and then maybe my WiFi will work?
I guess I could look for a ROM that is using a different base and try that.
Click to expand...
Click to collapse
WiFi not working could be kernel related. What kernel are you running - stock or something else. I'm using lunarkernel+viperrom.
When i read carefully, you didn't mention on what firmware you run ARHD

3.28.605.4

BBEgo said:
3.28.605.4
Click to expand...
Click to collapse
Well, it's the right one for the job. My guess is kernel is causing non working WiFi, but i could be wrong. Did you tried some custom kernels?

Related

[Q] unlocked Samsung Galaxy SIII on AT&T network

Hi,
I have SIM unlocked, rooted Tmobile's samsung Galaxy SIII (SGH-T999); put AT&T SIM card and it is working fine. As a fundamental question on loading custom ROMs, should I be picking ROMs from AT&T forum in XDA or Tmobile in XDA??? So far I have been using Avatar/Liquid Smooth ROM built for Tmobile....still it doesnt make sense to me as i am currently on AT&T....I dont want to brick my phone by doing something wrong.
Can someone reply?
Thanks
Mahesh
BTW - ignore my signature....i am unable to edit them - dont know why - there is no option to edit signature!
kmahesh said:
Hi,
I have SIM unlocked, rooted Tmobile's samsung Galaxy SIII (SGH-T999); put AT&T SIM card and it is working fine. As a fundamental question on loading custom ROMs, should I be picking ROMs from AT&T forum in XDA or Tmobile in XDA??? So far I have been using Avatar/Liquid Smooth ROM built for Tmobile....still it doesnt make sense to me as i am currently on AT&T....I dont want to brick my phone by doing something wrong.
Can someone reply?
Thanks
Mahesh
BTW - ignore my signature....i am unable to edit them - dont know why - there is no option to edit signature!
Click to expand...
Click to collapse
You should flash rom's specific to your phones hardware/model number. It seems to me *most* of the hardware is the same between the i747 and t999 from what i've read but always best to err on the side of caution.
dntesinfrno said:
You should flash rom's specific to your phones hardware/model number. It seems to me *most* of the hardware is the same between the i747 and t999 from what i've read but always best to err on the side of caution.
Click to expand...
Click to collapse
by doing that, in my case, would my ROM be optimized for AT&T??
kmahesh said:
by doing that, in my case, would my ROM be optimized for AT&T??
Click to expand...
Click to collapse
Most likely, but tread with caution. The only issue you might encounter are APN settings that you could always edit manually. From what I understand, the T-Mobile Galaxy S3 is almost identical to the AT&T one, and in certain cases, some people have been able to run T-Mobile roms on the AT&T one.
kmahesh said:
by doing that, in my case, would my ROM be optimized for AT&T??
Click to expand...
Click to collapse
The only thing that is carrier specific as far as custom ROM's are concerned is the ability to connect to the network in question, its the hardware the ROM is designed for that is important, minus any carrier bloat apps that may be included in a ROM (non issue if using an AOSP based ROM). Flashing software to an unintended device will most likely be bad news. As drx said worst case you would have to manually enter the apn settings. If i recall the only real difference in the TMo and ATT S3's is the fact that the T999 can connect to the 1700mhz band and the i737 can't (natively).

[Q] Which ARHD ROM variant to install?

Hello all, I've been following the M8 forum for a few weeks in anticipation of getting a new phone on May 8th. I have a bit of a noob question though, one that I've been unable to find the answer to myself.
Which version of ARHD 5.0 should I install on a T-Mobile HTC One M8? I've been following their thread for a while and intend to unlock/root/install ARHD within a few days of getting the device. I see mentions of the international version as well as different versions for each US carrier. My understanding is that GSM carriers can install international versions whereas CDMA carriers must install their specific variants.
If my understanding is correct and you are able to install the international version or the T-Mobile version, then what is the difference?
I appreciate any help. I'm not a complete noob when it comes to rooting and flashing roms, but I'm coming from a VZW Galaxy Nexus where it was pretty much idiot proof. I've been running the same ROM for so long that I know exactly how to flash it each time a new update is released. It didn't have specific variants because the ROM was designed specifically for the VZW Gnex. So I'm a little confused by the different variants and want to make sure I don't mess anything up a week after I get the phone.
Again, thanks to anyone who takes the time to help me wade through my confusion.
You can flash any GSM variant.
The differences will be whatever the carrier has done to tweak their version of the roms, included apps, tweaked settings, signal icons etc.
exad said:
You can flash any GSM variant.
The differences will be whatever the carrier has done to tweak their version of the roms, included apps, tweaked settings, signal icons etc.
Click to expand...
Click to collapse
Thank you for confirming that. While I was like 90% sure, it's better to have someone confirm that for me.

[Q] Newest AT&T (CWS__001) compatible firmware?

My AT&T HTC One M8 is currently running the WNC Lollipop ROM, radio/baseband: 1.24.21331147A1.09G and main/OS 4.16.1540.8. Is there a later firmware I should apply before moving to (e.g.) the InsertCoin ROM? Where do I find newer ROMs for the CWS__001?
Wotta said:
My AT&T HTC One M8 is currently running the WNC Lollipop ROM, radio/baseband: 1.24.21331147A1.09G and main/OS 4.16.1540.8. Is there a later firmware I should apply before moving to (e.g.) the InsertCoin ROM?
Click to expand...
Click to collapse
Its a tricky question, as AT&T seems to be in the process of making changes to their LTE network in preparation of Voice Over LTE (VoLTE) deployment (HD Voice, as they call it) and this seems to be playing havoc for some folks on "Euro" based custom ROMs. Namely, not having voice call service or SMS while on LTEin some locations.
I'm also on the 4.16.1540 firmware, and its been working fine with SkyDragon Sense 7 on AT&T's network. And in multiple locations, as I just travelled to 2 different cities (in addition to my home market) and everything has been working fine on LTE.
All I can say, is try the desired ROM with the current firmware. If you notice any issue then try another firmware. I don't know if anyone has posted the latest AT&T 4.28 firmware, but you might check the AT&T M8 section for it, if you want to try it. I imagine the 4.28 firmware includes some AT&T specific radio tweaks. Although newer is not always better.
Wotta said:
Where do I find newer ROMs for the CWS__001?
Click to expand...
Click to collapse
You should be able to flash any ROM intended for the "GSM" M8 (stay away from ROMs intended for Verizon or Sprint). Check the specific ROM thread to see if AT&T is supported, or at least if other AT&T users have tried it, if you want to be safe.
But as mentioned, you may or may not see LTE issues on some ROMs due to some AT&T network-specific factors. These issues seem somewhat isolated (maybe location dependent?) and I don't think any of the devs have had much luck addressing the issue. So trial and error is the best I can tell you.

[Q] I9505 Lollipop on SGH-M919 or impossible

With Lollipop 5.0 available for international variants such as the I9505, is it possible to simply flash that official rom, along with a U.S. modem to the SGH-m919?
I have read threads where CUSTOM ROMS are compatible with both the I9505 and M919, but not the stock I9505 rom already available.
Am I missing something obvious with this question because I know I am not the first to think of it. After comparing hardware specs of the two models, only the CPU looked different.
Has anyone successfully done this or has anyone done this and then needed a dozen workarounds only to get below par functionality? One of the reasons that I have not flashed to all of the current custom roms, is that each has "no Bluetooth support yet" or "Wifi calling not working." I truly respect the work of the modding community, as I can not do what it does, but I just do not want any more never ending workarounds simply to makes calls and texts. Flashing a rom? Yes. I run both T-Mobile and Metro versions of the latest M919 firmware/software.
Thanks much.
Bluetooth worked for me. WiFi calling will not work either way, no matter how official. Needs to be T-Mobile firmware. I think there is a guide to flash it in general thread if you're interested. I wouldn't do it
serio22 said:
Bluetooth worked for me. WiFi calling will not work either way, no matter how official. Needs to be T-Mobile firmware. I think there is a guide to flash it in general thread if you're interested. I wouldn't do it
Click to expand...
Click to collapse
Thank you very much. I have spotty coverage where I live. I go from 4G LTE to no signal 20 feet from my house. I wanted to try Lollipop without using a custom, buggy rom. Many of the custom roms look fantastic and feel snappy but the list of "not working" and bugs to be fixed in next build is simply not worth it to me.

will a korean model V510N work fine in the UK?

any network compatibility problems likely to arise? and i assume i will be able to flash the rom to a vanilla non branded version?
urine said:
any network compatibility problems likely to arise? and i assume i will be able to flash the rom to a vanilla non branded version?
Click to expand...
Click to collapse
No you will not be able to flash anything else as of now and you will probably not be able to use 5g until we get root

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