yashsingh1/xdaforums huggingface dataset:
[HTC One A9] alray:
Why would you want to convert to WHL? Ppl are usually doing the opposite. You are going to use Sprint USA? I don't even think Sprint is allowing non Sprint phone to register on their network.

Afaik the letters indicate the compatible networks

U = GSM/WCDMA

L = FDD LTE

H = TDD LTE

T = TD-SDCMA

W = CDMA2000/WCDMA

D = Dual sim

So the UHL variant is GSM/WCDMA/FDD LTE and the WHL is CDMA2000/WCDMA/FDD LTE/TDD LTE. CDMA2000 is only present in the US and South Korea (and a lil bit in japan).

2PQ9100 (UHL): GSM 850/900/1800/1900 MHz UMTS 850/900/1900/2100 MHz FDD LTE: 1,3,5,7,8,20,28 TDD LTE: 38,40,41

2PQ9120 (UL): GSM 850/900/1800/1900 MHz UMTS 850/1700(AWS)/1900/2100 MHz FDD LTE: 2,3,4,5,7,12,13,17,29

2PQ9300 (WHL): CDMA BC0/BC1/BC10 GSM 850/900/1800/1900 MHz UMTS 850/1700(AWS)/1900/2100 MHz FDD LTE: 2,4,5,12,25,26 TDD LTE:41
[HTC One A9] alray:
Same as last week, nothing for Orange_ES here. ir-file.com or easy-firmware.com.

You could also look on super-firmware.com to see if it's available. Account there is way cheaper (3$ US for 5gb) then ir-file or easy-firm if you only need to download a single file.

But honestly, instead of paying for the ruu, I would pay for sunshine, change CID and use the international ruu (1.56.401.70)
[HTC One A9] Fm4r1n:
[MENTION=4654136]alray[/MENTION]

Thanks, it has become very clear to me
[HTC One A9] Kutaiba Hilani:
[MENTION=4654136]alray[/MENTION]

RUU will restore the phone to the store state, but I'm not sure:

* Will RUU clear the cache and dilvik-cache?

* Will RUU reproduct boot and recovery partition?

* Will RUU will delete all the userdata?

My question for RUU.ZIP version

Thanks in advance!
[HTC One A9] alray:
Yes to your 3 questions
[HTC One A9] 4onu:
next week htc Europe will release RUU.zip for 2.17 version
[HTC One A9] Leonly:
2.17.401.2 OTA File

Can someone share the 2.17.401.2 OTA.zip update file?
[HTC One A9] Phildu91:
2PQ9IMG_HIA_AERO_UHL_M60_SENSE7GP_MR_Orange_FR-B2B_1.56.73.70_Radio_1.1.U00018.1@60122.4_43.05_F_release_469215_signed (1).zip

link:

https://dc1.androidfilehost.com/dl/...60122.4_43.05_F_release_469215_signed+(1).zip

or

https://pa1.androidfilehost.com/dl/...60122.4_43.05_F_release_469215_signed+(1).zip
[HTC One A9] ghasemi.hussein:
I'm so happy that finally as way founded to update modified tw a9 to noughet. I'm on 1.58.709.1. Please tell more about what you done, so I can do it too.

Thanks.

One other qousetion. Did you find any way to root your phone? And did you face any bug yet?
[HTC One A9] alray:
2.16.401.3 + S-ON users, the wait is over. 2.17.401.2 ruu.zip added to post #1.

Special thanks to [MENTION=859894]scotty2000[/MENTION]

Please give your feedback, want to know if the ruu works fine. thanks.

FYI ruu origin is easy-firmware.com
[HTC One A9] Lolli26:
Doesn't work, 12_RU_zip ERROR
[HTC One A9] Muharrem55:
What is your CİD?
[HTC One A9] Lolli26:
HTC_001
[HTC One A9] Muharrem55:
My Cid HTC__M27 İ am DOWNGRADING ruu. İt is work.

2.17.401.2 RUU work
[HTC One A9] Lolli26:
Sorry what do you mean with downgrading? This is supposed to be the last RUU releases for Europe
[HTC One A9] amrdiadora:
hello my friend , if you need to upgrade to nougats and you are S-ON , you need to update online , i think this depend on your CID and if the update is available or not , so what is your CID ? then may i can help you or any one from the experts here
[HTC One A9] scotty2000:
We need more information to help!

Do you have Nougat on your phone or still Marshmallow?

If you have 6.01, you need to flash firmware first.
[HTC One A9] Ultramanoid:
Flash the firmware from 2.16 and then 2.17 ?
[HTC One A9] Lolli26:
I'm S-OFF and I have already installed firmware and RUU for 2.16 (in fact actually is my current firmware). I have downloaded the RUU, renamed as usual and put in the root of SD card but when try to update via download mode I get the error
[HTC One A9] amirinda:
when S-Off:

S_Off =› flash firmare 1.56.401.70 =› flash RUU 1.56.401.70 =› OTA 1.56.401.81 =› OTA 2.17.401.2 =› then twrp, su ...
[HTC One A9] scotty2000:
Here is my link to the 2.17.401.2 firmware.zip file.

I first flashed this coming from 2.16.401.3 and it worked flewless.

https://mega.nz/#!ds1WXb4a!oevCHVHpWVI0oq3z7siVOk8azKVCRX5mFsnrcZX3AgI

Please let me know if that worked!

Thanks
[HTC One A9] Lolli26:
Thanks!!! I will try as soon as possible
[HTC One A9] Fm4r1n:
I have s-off, it works correctly 2.17.401.2 [MENTION=4654136]alray[/MENTION] [MENTION=859894]scotty2000[/MENTION] this ruu will support possible future ota to N 7.1?
[HTC One A9] HighFidel:
Can I flash the 2.17.401.2 RUU with SD card method, if I am on branded Vodafone 2.16.161.5?

Many Thanks..
[HTC One A9] alray:
Did you read the FAQ at post #2 ? useful info for you there
[HTC One A9] Didusieq:
No, you need RUU with x.x.161.x
[HTC One A9] Lolli26:
Same error...
[HTC One A9] alray:
can you post your "fastboot getvar all" output?
[HTC One A9] Lolli26:
Never mind, solved!!! The problem was that, when I have flashed the 2.16 RUU I don't have deleted the file in the SD because I have thought that, using the micro SD as internal storage, the phone would have formatted it but this was not the case so, even if I couldn't see it when the phone was plugged to the PC, the file was still there and probably caused conflict with the new RUU.
[HTC One A9] ghasemi.hussein:
Hi

I am on 1.58.709.5. As you know 709 means it for Taiwan. I modified my system partition so there is no way for me to install ota uptades (there is an ota update for android 7 for 709 devices). The guy that i messaged to, do something and install

1.27.709.5 ruu without s off. Then install noughet ota update.

I am asking about how he done this.

Update: I didn't realized that F&Q were updated. I just read it. My answer was there. Thanks a lot [MENTION=4654136]alray[/MENTION]
[HTC One A9] alray:
If someone have an account on easy-firmware.com, here is a list of the new RUUs:

UHL

2.16.709.3 1890 MB

2.16.425.4 1758 MB

2.16.841.4 1728 MB

2.16.771.4 1770 MB

2.16.206.5 1785 MB

2.17.91.1 1733 MB

2.16.73.6 1703 MB

UL

2.18.598.2 2043 MB

2.18.600.2 2067 MB

2.18.428.1 1808 MB
[HTC One A9] usmantahir:
Can i use the EU RUU?

I own an HTC One A9, from UK

i previously flashed the MM RUU:

HTC AERO UHL

1.56.91.71

CLICK TO HIDE CONTENT

EE UK

modelid: 2PQ910000

cidnum: ORANG001

Link: https://www.androidfilehost.com/?fid=24457741883932916

md5: d9fb062162157e6d40adfaa057947f9e

I cannot yet find a Nougat RUU for UK, so i weas wondering can i use the Europe version RUU?

such as this one:

HTC AERO UHL

2.17.401.2 RUU

CLICK TO HIDE CONTENT

HTC Europe

modelid: 2PQ910000

cidnum: HTC__001

cidnum: HTC__034

cidnum: HTC__J15

cidnum: HTC__M27

cidnum: HTC__A07

cidnum: HTC__016

cidnum: HTC__002

Thanks to [MENTION=859894]scotty2000[/MENTION]

Link: https://www.androidfilehost.com/?fid=817550096634759503

md5: 2fab1ba54f9066b557ee4c257620affd

Also, if anyone can help, i download the Nougat OTA but it fails halfway loading in bootloader and i end up with the triangle and exclamation mark. I am unrooted and bootler relocked. Thank You.
[HTC One A9] alray:
For OTA update to install correctly, everything must be stock (i.e system files). If you did any modification between the time you've flashed the 1.56.91.71 ruu and the ota update to 2.17.91.1, you should try to reflash the 1.56.91.71 RUU and retry to install theNougat update.

Otherwise the 2.17.91.1 ruu is available on easy-firmware.com as stated in the post just before yours. [MENTION=859894]scotty2000[/MENTION] might be able to download it for you, or you'll have to register your own paid account to download the file.

You can't flash the .401 ruu if your phone is S-ON, see post #2 for more info.
[HTC One A9] usmantahir:
I already reflashed the RUU, still the same problem. I'll ask if [MENTION=859894]scotty2000[/MENTION] will help
[HTC One A9] scotty2000:
I have downloaded the RUU (2.17.91.1) and actually I push it to my mega cloud.

I will provide the link when it is finished and I also have the o2_UK file 2.16.206.5

Regards

Scotty
[HTC One A9] usmantahir:
Hey [MENTION=859894]scotty2000[/MENTION] could you by any change provide the 2.17.91.1 ruu zip for the A9?

---------- Post added at 01:06 PM ---------- Previous post was at 01:05 PM ----------

Okay thanks a lot man, waiting for your heads up ?
[HTC One A9] alexxero:
2.17.401.2 it's not working for me from 2.16.401.3

Flashed fw it worked ok but when flashing ruu i get this

UPDATE: it worked with sdcard method.
[HTC One A9] jdomok78:
Hi everybody,

I downloaded the following firmware file due to my HTC A9 like a brick after 1.02 GB update loaded, It's stopped 93% and now nothing work.

2PQ9IMG_HIA_AERO_UHL_N70_SENSE80GP_MR_HTC_Europe_2.17.401.2_Radio_1.1.U40062.1@61209_60.00_F_release_498166_signed_Hboot_2_4_2 , but I cannot move it to SD card, why????
[HTC One A9] vvelichkov:
Hi to all. Can someone provide 1.56.401.70 firmware only file. I have to downgrade to 6.0, but i cannot extract the firmware only file from RUU file. Thanks!
[HTC One A9] alray:
Is your phone s-on or s-off?
[HTC One A9] vvelichkov:
I'm S-ON
[HTC One A9] alray:
see post #836 sorry
[HTC One A9] alray:
I personally only have the decrypted version which will not work on a s-on phone.

The signed version can be found there

https://super-firmware.com/index.php?a=search&b=1.56.401.70 for 3$

http://ir-file.com/show.php?token=43012 for 20$

or use Sunshine to get S-OFF (25$) and flash the decrypted version
[HTC One A9] 4fun4fun:
I have a Sprint A9(mid: 2PQ930000, cid: SPCS_001), Nougat OTA(2.18.651.2), rooted(TWRP,SU), s-off.

Trying to downgrade to 6.0 by flashing 1.09.651.1.zip.

But got this error :

(bootloader) ERR check AES encrypted magic string failed.

Need help. Thanks.
[HTC One A9] JochenP:
Read post 2

Gesendet von meinem HTC 10 mit Tapatalk
[HTC One A9] 4fun4fun:
Read it several times, but still can't figure it out.

I thought if s-off, I can freely downgrade/upgrade, no ?

Please advise.
[HTC One A9] JochenP:
Reread post 2 / 4.
[HTC One A9] 4fun4fun:
Quote from Post 2/3 :

"If your phone is S-ON you can't downgrade simply by flashing an old ruu **(See how to downgrade with S-ON below). The combination of a, bb and dd (see above explanations) of the ruu you want to flash must be same or newer than your version-main (fastboot getvar version-main)"

Doesn't it imply s-off is not constrained by key/signature ?
[HTC One A9] alray:
Short answer, No

Downgrade your firmware first

Does s-off allows you to flash unsigned files? Yes it does. Does it make your phone able to decrypt a file with the wrong key? No. If the key is the same then there is no need to flash firmare first but it changed in 2.xx.xxx.x and youll have no other choice than flashing the firmware before the ruu each time youll be going from 2.x to 1.x or from 1.x to 2.x.
[HTC One A9] 4fun4fun:
I chose s-off route is because I can't find 1.xx.651.x firmware, and thought s-off may get around it.

Apparently I am wrong.

Thanks.
[HTC One A9] alray:
Extract the firmware from the ruu using nkk71 and captainthrowback ruu tool.
[HTC One A9] pixel989:
Sir!,

i'm from Pakistan i just updated my A9sprint to (Nougat)!

here are 5 Network provider! (Telenor,Mobilink,Zong,Ufone,Warid) data is working on 4 them.... But not working on (ZONG)MCC=410 MNC=04

data was working on Zong in Marshmallow but not working in \nougat!

how can i solve this problem?

Thanx!
[HTC One A9] Fm4r1n:
Only Telenor work in 4g band5 850mhz

http://willmyphonework.net/
[HTC One A9] 4fun4fun:
Got it, and successfully downgrade to android 6.

Thanks.
[HTC One A9] jabber23:
Thank you so much for all your hard work! The tutorial on "Downgrading with S-ON" saved my life! After hacking version-main and having found a signed 1.x.206.x firmware from an OTA, I was able to downgrade the firmware and flash RUU then!
[HTC One A9] Belyarve:
edit: asked for the wrong thing

I've been looking around for a bit couldn't really find a way to update form a 1.27.401.5 firmware to a 2.xx.401.5 to be able to have Nougat ?

Sorry if this has already been asked before...

Thanks :)
[HTC One A9] alray:
Everything is explained in the FAQ at post #2
[HTC One A9] imeicodes:
i need nougat OTA firmware.zip for A9 Sprint please help me
[HTC One A9] Kauser Ahmed:
Can anyone please inform me if the nougat update for 1.56.707.80 is out or not? Im now using the lineage os as I haven't got my official update please.

(Please dont recommend me to s-off, im broke)
[HTC One A9] mlecho:
HI - i've been trying to achieve this with my rooted a9 (USA, unlocked, S-ON) so i can make a jump to lineageos. However, when trying to install lineageos, i get a bootloader loop. I was told i need to downgrade from N to Marshmallow, and to follow the point listed in the quote above ^ (per this thread - https://xdaforums.com/showpost.php?p=72054840&postcount=469)

Here's the exact terminal session i tried. I also tried from TWRP terminal with no luck

$ su
-ne "1.57.617.60\x00" | dd of=/dev/block/mmcblk0p28 bs=1 seek=2208 <
12+0 records in
12+0 records out
12 bytes transferred in 0.003 secs (4000 bytes/sec)
root@htc_hiaeul:/ # exit
shell@htc_hiaeul:/ $ exit
E-MacBook-Pro:HQ$ adb reboot download
E-MacBook-Pro:HQ$ fastboot getvar version-main
version-main: 2.18.617.1
finished. total time: 0.000s

as you can see, it remains on 2.18.617.1. I did flash 1.57.617.60 and it boots to Marshmallow, but the partition still can not be adjusted. Any ideas?
[HTC One A9] Fm4r1n:
i dont know so much, but i think that you need s-off for flash a custom rom, and with s-on modify its version-main "echo"
[HTC One A9] alray:
see in red above.
[HTC One A9] alray:
No you don't need S-off to flash a custom rom. Unlocking the bootloader gives you write access to /recovery /boot and /system (allowing you to flash these partitions with custom recoveries, kernels and roms) and also disabling signature verification for these partitions (allowing you to boot custom software)
[HTC One A9] Fm4r1n:
Ahh ok, s-off is for flash unsigned software? [MENTION=4654136]alray[/MENTION]
[HTC One A9] Ultramanoid:
S-Off is to modify your firmware, but to a larger extent than just installing a recovery or a rom -- which you can do with no issues being S-On.

For instance, S-Off would allow you to change your USA firmware to a European one, which you cannot do being S-On. Search XDA and you will find some good posts about hTC and what exactly means to be S-On or S-Off. For most users wanting to install a recovery, root and / or change roms it is not necessary.
[HTC One A9] mlecho:
Thanks [MENTION=4654136]alray[/MENTION] - echo was in the session, just did not get captured in my cut/paste...turns out after much hunting around , my misc/ dir is not 028, but rather 029. I've to the version-main working now.

ls -al /dev/block/bootdevice/by-name/misc
lrwxrwxrwx root root 2017-04-27 10:18 misc -> /dev/block/mmcblk0p29
-ne "1.57.617.60\x00" | dd of=/dev/block/mmcblk0p29 bs=1 seek=2208 <
12+0 records in
12+0 records out
12 bytes transferred in 0.008 secs (1500 bytes/sec)
root@htc_hiaeul:/ # exit
shell@htc_hiaeul:/ $ exit
$ adb reboot download
$ fastboot getvar version-main

however, still can not flash older twrp version (3.10 -> 3.0.2) or lineageos - if i try any of those, i get bootloader loops
[HTC One A9] alray:
What was p28 then? Because you did write "1.57.617.600" on it at block 2208, maybe overwriting crucial data (hopefully not)...
[HTC One A9] mlecho:
indeed .... more info on that...

$cat /proc/emmc
....
mmcblk0p28: 00007c00 00000200 "reserve_2"
mmcblk0p29: 00100000 00000200 "misc"
....

i don't know what reserve_2 partition does. How critically ruined am i?
[HTC One A9] Kauser Ahmed:
Can anyone please tell me if the update for 1.56.707.80 is out or not?
[HTC One A9] Dragonkind:
Hey guys, see this:

http://www.htc.com/us/support/htc-one-a9/news/

2.18.617.21 for US unlocked ver. with April security level

Btw the U11 is released today

Hope 10, A9 and M9 will get 7.1.2 too
[HTC One A9] KOrmond96:
1.56 or 1.57 firmware

could anybody provide a link for the firmware I cant extract it from the RUU :(
[HTC One A9] ViJitH VkS:
Update is here.. But

Finally there is an OTA update for my HTC ONE A9.

Specifically asia_hk varient. Yesterday this update came (version 2.17.708.2) cid: htc__622.

But here is the problem.

Download completed.

Some update processing screen.. Progressing to 100% likely in

10 to 15 mins. Its all gone perfect.

But after that phone itself reeboot into the recovery screen.. And showing a download icon.. There is also a progression bar.. It stucks at 24 % and the screen flashes and the progression bar dissappears. The green download icon changes to a red color error symbol.. Thats it.. No progress after that. I rebooted the phone forcely.. It started normally and no changes were made. After a little bit googling Ive found some htc one m9 devices have similar experiences. How can solve this problem.. Any suggestions...??? :rolleyes::rolleyes::(
[HTC One A9] marcos07r:
I also had the same problem that happens when you modify the system or have access to the root of systems. You can download Ruu and install it from download mode.

I'm not an expert
[HTC One A9] ViJitH VkS:
Did it solved your problem?
[HTC One A9] ViJitH VkS:
How can I solve this

12 RU_ZIP_ERROR?
[HTC One A9] Kauser Ahmed:
2.17.708.2 Ruu please anyone?
[HTC One A9] alray:
It's already explained in the FAQ :p

Read #4
[HTC One A9] ViJitH VkS:
And

8 ru_signature_fail

when installing firmware.:crying:

---------- Post added at 03:50 AM ---------- Previous post was at 02:59 AM ----------

Hey brother.

I cant update my htc one a9 in any method. I have waited for the update for a long time then the ota update came. But its stucking on 24% in recovery. Then a xda friend [MENTION=4218587]marcos07r[/MENTION] gave me the link of nougat rom and firmware.

My cid is htc__622 and also he gave 2.17.708.2. It suits my cid. But when installing the firmware it shows

8 ru_signature_fail in sd card method. How can I solve this problem.?

My system status is modified.

S-ON

Current version 1.65.708.2
[HTC One A9] Kauser Ahmed:
Bro can you share the link please?
[HTC One A9] alray:
Telstra

2.16.841.4 signed RUU.zip and 2.16.841.4 firmware.zip added to the OP.

a big thanks to [MENTION=859894]scotty2000[/MENTION] :good:
[HTC One A9] alray:
8 ru_signature_fail might indicate that you are flashing an unsigned zip (unsigned zip requires S-OFF) or that you are trying to flash a signed zip with signature verification disabled (i.e: Bootloader is unlocked but S-ON). Hard to tell without any access to the files you are trying to flash neither any info about your phone lock/unlock status.

You can extract the 2.17.708.2 signed firmware.zip from the ota update and flash it then flash the 2.17.708.2 ruu (hopefully it's a signed version).

Otherwise you can downgrade using the older .708 ruu from post #1 (instructions how to downgrade with s-on at post #2) so your phone is back to 100% stock and ota updates should then install without any problems.

PS: There is no need to send me a duplicate of each of your post via PM. I'll answer your posts eventually when I have some time. thanks ;)
[HTC One A9] ViJitH VkS:
I dont have a ota update zip.

Only have the ruu file. Can you provide me a OTA update zip? Did the version has to be 2.17.708.2 for the firmware?
[HTC One A9] alray:
A few posts back you told that your phone tried to install the OTA update... Select to download the update but to install later then copy the OTA from your phone to your pc and extract the firmware.zip file from it.

BTW is the ruu signed? Was you're bootloader locked or unlocked?
[HTC One A9] ViJitH VkS:
Boot loader is relocked.. After downloading where will be the location of the ota update?

---------- Post added at 05:10 PM ---------- Previous post was at 05:10 PM ----------

Ruu is signed

---------- Post added at 05:58 PM ---------- Previous post was at 05:10 PM ----------

Can I extract the firmware from the ruu?
[HTC One A9] alray:
A RUU.zip is signed/encrypted. Extracting the firmware from it is possible but the end result will be an unsigned firmware.zip that will only flash on s-off phones. The OTA zip file isn't encypted, only the firmware.zip inside of it is encrypted, so after extracting the firmware.zip from the ota.zip it will still be signed and encrypted and will works on S-ON phones.

The ota update should be located at data/data/com.htc.updater/ if I remember correctly.
[HTC One A9] CarinaPDX:
That has not been my experience. If the rom.zip file is extracted from the RUU on a Windows machine, then used with the SDcard method, the rom.zip is accepted on an S-ON machine.

Greg

Edit: It still seems that the best way of reliably getting the updated key is to use the OTA from 1.- to 2.-. Even if it were possible to install a 2.- RUU I'm not sure it would update the key, as the RUU needs the key present before it will work in the normal way.
[HTC One A9] alray:
Might want to read the post you've quoted again, that's not what I was talking about ;). I'm talking about extracting a firmware.zip from a ruu.zip, not extracting a ruu.zip from a ruu.exe.

And btw the rom.zip you'll find in a ruu.exe is a ruu.zip without the fancy and extra long file name. Yes the ruu.zip is still signed after extracting it from a ruu.exe, that process require no decryption unlike extracting the firmware from the ruu.zip
[HTC One A9] CarinaPDX:
Thanks for the very clear explanation. The re-use of words to describe slightly different things is one of the big problems with understanding ROMs. It would add clarity if "signed" were added to "firmware.zip" (e.g. firmware-signed.zip) when appropriate. Then again, "firmware" is needlessly generic as well. Of course the engineers weren't thinking of the public needing to understand these things when they created them, but I'll bet they've tripped over this stuff as well. My lifelong battle to get programmers to write clearly and comment/document has probably been a waste of time...

Greg
[HTC One A9] pankajupadhyay05:
Since it's required to flash firmware first before RUU when updating from Marshmallow to Nougat, I did the same. But even flashing the firmware file giving me the same error. I copied the firmware to sd card and renamed it to 2PQ9IMG. Then booted in download mode and tried flashing. But it gave me the following error:

12 RU_ZIP_ERROR

12 RU_ZIP_ERROR

FAIL12 RU_ZIP_ERROR
[HTC One A9] pankajupadhyay05:
I also tried the PC fastboot method. The firmware zip gives the same error. I guess the file (2.18.617.1 Firmware) is corrupted or invalid.
[HTC One A9] Kauser Ahmed:
I manually updated my firmware to 2.18.707.1 from the ota file in htc.updater folder. The firmware is successfully updated but i cannot find the ruu file, so im stuck. How do I take out the ruu from ota?

Again, as I am now on nougat firmware, can i flash any rom based on 2.xx.xxx for suppose Dev 7.0 nougat through twrp?

TIA
[HTC One A9] alray:
There is no RUU in an ota zip file. Only the firmware.zip file and the files that need to be patched for the update.

You're talking about stock rom or custom rom? I dont see why you couldn't flash any custom rom. For stock rom requirements, see FAQ at post #2
[HTC One A9] CarinaPDX:
If you want to change to the ROM for Developers Edition phone you need to be S-OFF first, then change a couple of ID settings to those for the Dev phone, then install that ROM. This has been well documented - please search a bit. But first read the FAQ in post #2 as it will save you a lot of wheel spinning.

Greg
[HTC One A9] Kauser Ahmed:
It is like a stock rom, but modified which is flashable through twrp, but unfortunately it is only for hiaeul devices. I couldn't find a rom based on 2.Xx.xxx firmware hiaeuhl.

---------- Post added at 07:04 AM ---------- Previous post was at 06:59 AM ----------

Can anyone give me the ruu for 2.18.707.1

TIA
[HTC One A9] Kauser Ahmed:
I solved my problem, thanks for everything
[HTC One A9] pankajupadhyay05:
Got HTC One A9 from eBay.in. It is S-OFF. After updating to 2.18.617.21, I have lost the VOLTE functionality. Do you Enhanced LTE Services menu in your settings. What's the India model MID and CID. And do you have the firmware and RUU file for it.