How i do i know my Original model of my M8 - One (M8) Q&A, Help & Troubleshooting

i bought second hand htc one m8. I think it is refurbished device. It is Sprint i think region .651. it is s-off. Can i convert it to gsm. Cant flash Sprint RUU either. Please help.

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[Q] [Radio] Update to latest radio

I have two HTC One M8 phones. One is a T-mobile phone converted GPE. The other one is a brand new unlocked phone I just bought from HTC. I've been having some trouble with my GPE phone not having LTE service where my new unlocked one has full service (T-mobile network). Radio version on new phone is 1.24.21331147A1.09G. Old phone is 1.22 something. Is there a way to pull radio.img off the new phone for flashing to GPE phone? Or is there a flashable 1.24 radio version around somewhere?
Also, are radio images only device specific or are they also carrier specific and/or ROM specific? In other words, does it matter what carrier or ROM for any given radio image?
edit: My One M8 converted GPE is S-off and Super CID.

Am I the only one who has this cid and firmware?

So I'm wondering if I'm the only one who has CID ACG__001 and build 1.33.510.8? There seem to be no RUU nor are there any sign of ota coming soon for me. I'm starting to regret switching carrier to nTelos, and I'm in a 2yr contract too.
HTC One m9
Android 5.0.2
Build 1.33.510.8
CID ACG__001
Carrier nTelos
Not to necro, but.
I just purchased a "Sprint" HTC One M9, it has 1.33.510.8, ACG--001 and appears to be a C Spire phone? No problems unlocking bootloader, or flashing TWRP, but getting S-OFF and a rom has proven to be a nightmare.

T-Mo 10 vs Unlocked

Fairly certain I'm going to pick up a 10 once I find one for around $500. The only thing I'm worried about is the carrier version. I'm finding T-Mo ones for a hair cheaper, but I don't want to get locked into the stock ROM or some situation. If I get the T-Mo branded 10, is it going to be like my M8 where I can flash any Unlocked/International ROM on it after root/TWRP/S-Off/Bootloader unlock?
Yes must change CID to super CID or unlocked CID. Then you can flash the unlocked USA Rom. Follow the tutorial in the forum. I have done this with the tmob variant and am running the ruu from the HTC dev site. Hope this helps.

M9u international rom to UK stock rom?

I have an m9u international and wondered if I can flash it to a UK version. Are there any easy guides? I've flashed Samsung phones before without any issues. I did my HTC One M7 but it bricked.
Uk uses the international version too so no need. It should accept your sim card.
Unless you mean using a carrier branded rom?.
Beamed in by telepathy.

RUU issue

I currently have a customer who has HTC One M9 at my house and it is the AT&T variant. They have it carrier unlocked so that it works on the T-Mobile service provider. Problem is they keep dropping GPS signal so I tried to check what their software version is. It looks like they have software version 5.0. I tried to use the are ruu to update it, but every time it gets into download mode to start loading the file or bootloader mode rather it just tells me that the phone is not the right software. I'm using the AT&T ruu. Is there any reason why this is not working? I also tried the carrier unlocked version but the phone is clearly of AT&T pedigree
Cid and mid needs to be known
Currently running super Sid but previously was AT&T Sid. I can change the SIDS anything I want with Chimera tools. I don't know what the mid is though I'm not even sure what a mid is
Changing the CID without changing the firmware has the same effect as drinking snake oil. In addition the SuperCID prevents the M9 from accepting OTAs. You should take a look at the ReadMe thread. All information you might need are either there or linked in the further reading section of that thread.
I personally don't think that people should use such tools as the one that you mentioned. You don't know what kind of commands the tool is actually using so that you don't have any control about what's happening to the phone. (Not to mention that you don't learn how to fix a problem if the tool fails due to whatever reason.) Most of the features that tool is offering for HTC devices are available for free and don't take longer than a handful of minute if done manually.
Sent from my HTC One M9 using XDA Labs
If I load the t-mobile cid will it take the tmobile ruu?
CID 11111111
MID OPJA11000
Need this to run on tmobile network. It is an AT&Tb phone
No, changing the CID is not enough since the MID of the T-Mobile US variant isn't the same as the one for the AT&T version. As said before, please read the ReadMe thread. The RUUs are sorted by MID and CID, there, and the conversion guide tells you what to do for converting one version of the M9 to another. Be aware that the US T-Mobile variant RUUs are not the ones at the top of the download section. Those are the ones for T-Mobile Germany and T-Mobile Poland.
I converted it to an AT&T unlocked

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