make new ruu with old ruu and OTAs. - HTC One A9

hi
i want to know if there is a way to make ruu 1.58.709.1 with and old x.xxx.709.x and OTAs?

ghasemi.hussein said:
hi
i want to know if there is a way to make ruu 1.58.709.1 with and old x.xxx.709.x and OTAs?
Click to expand...
Click to collapse
It's impossible without HTC's signing key, so no.

Related

RUU names

Hello,
I want to know which RUU i should install if i want to get to sense 3.0 GB 2.3.5. I want the FOTA firmware which i got on my phone. I live in India.
RUU_Saga_hTC_Asia_India_1.47.720.1_Radio_20.28I.30.085AU_3805.06.02.03_M_release_199605_signed.exe
RUU_Saga_hTC_Asia_WWE_1.48.707.1_Radio_20.28I.30.085AU_3805.06.02.03_M_release_199476_signed.exe
which one is the one i need??
It depends on which phone you've bought, for which region. Check the CID of your phone - "fastboot getvar cid" in FASTBOOT mode.
P.S. I might be wrong, but I remember both of the mentioned RUUs being Sense 2.1.
salilkansal said:
Hello,
I want to know which RUU i should install if i want to get to sense 3.0 GB 2.3.5. I want the FOTA firmware which i got on my phone. I live in India.
RUU_Saga_hTC_Asia_India_1.47.720.1_Radio_20.28I.30.085AU_3805.06.02.03_M_release_199605_signed.exe
RUU_Saga_hTC_Asia_WWE_1.48.707.1_Radio_20.28I.30.085AU_3805.06.02.03_M_release_199476_signed.exe
which one is the one i need??
Click to expand...
Click to collapse
RUU_Saga_S_hTC_Asia_India_2.15.720.3_Radio_20.4801.30.0822U_3822.10.08.04_M_release_226809_signed
This is the RUU you need. {Refer post : http://forum.xda-developers.com/showpost.php?p=25135553&postcount=461 }
All credits to Football !!!
how to flash
How to flash this RUU? What all will be flashed? Will the recovery go back to stock? Also what about bootloader? i have unlocked bootloader. Can i flash it? After flashing will i receive OTA updates from htc?
salilkansal said:
How to flash this RUU? What all will be flashed? Will the recovery go back to stock? Also what about bootloader? i have unlocked bootloader. Can i flash it? After flashing will i receive OTA updates from htc?
Click to expand...
Click to collapse
RUU needs to be run / executed (.exe) on your PC with your phone connected to the PC via USB.
The Recovery will go back to the stock HTC Recovery.
After flashing, you will loose Root , & will be S-ON with the 2.xx Hboot. Also, you will be able to receive OTA updates from HTC.
Regarding, the rest of your querries, I suggest you read stuff from the INDEX, There are a lot of threads about returning back to Stock & Stuff...
salilkansal said:
Hello,
I want to know which RUU i should install if i want to get to sense 3.0 GB 2.3.5. I want the FOTA firmware which i got on my phone. I live in India.
RUU_Saga_hTC_Asia_India_1.47.720.1_Radio_20.28I.30.085AU_3805.06.02.03_M_release_199605_signed.exe
RUU_Saga_hTC_Asia_WWE_1.48.707.1_Radio_20.28I.30.085AU_3805.06.02.03_M_release_199476_signed.exe
which one is the one i need??
Click to expand...
Click to collapse
I'm afraid i can't help you.Sorry

[HOWTO] [HTC One SV] Unbrand your phone to get the OTA updates

Bonjour everyone, here's a little guide on how to unbrand your phone in order to get the OTA updates notifications directly and be able to install them.
If you want to get S-OFF one day on your One SV, read this first. You need to change CID to SuperCID to do so, and it's not possible (for the moment) if you upgrade to JB
Basically this works as long as your phone model is sold unbranded somewhere in the world and that the people having such a phone got an OTA update.
For now, ther's no way to change CID if you're running JB and are S-ON. That means that this only work for One SV's running ICS who want to get the OTA updates.
As far as I know, it works on K2_U and K2_UL, since they both got an OTA update to JB.
The trick is simple, I didn't invent it and haven't been able to find its original founder, but thanks a lot to her or him !
I'm basically just a messenger here since I only tried out some stuff that worked with other phones, so thanks a lot to bkcokota, old.splatterhand and jmztaylor
Don't try it if you're worried, bricks happen, you'd be the only one responsible !
Here we go :
1. First you need to root your phone, here's how.
2. Change you CID using the same method than for the One S.
Personnaly, I changed it to "HTC__203", which is the CID unbranded HTC phones have in France (HTC-FRA).
For example, "HTC__001" is HTC-WWE, which stands for World Wide English.
You can change it to whatever CID you like : choose it well. I can only recommend to use HTC__203 since it's the only one I tried and that it worked, but do as you please !
3. Flash stock recovery back. You'll find it here or here. Flash it like you flashed CWM recovery (into fastboot, using fastboot flash recovery xxxxxx.img).
4. Relock your bootloader. It's possible that it's not necessary, but it can't hurt ("fastboot oem lock", when in fastboot usb)
5. Run a RUU that matches you unbranded CID to get an "unbranded" rom.
You'll find them here, for example. The "RUU_K2_UL_ICS_40_HTC_Europe_1.17.401.5_R....exe" one will work with HTC__203 and HTC__001 CIDs.
6. Go ask your phone if he can find any updates
WARNING : for the moment there's no way to change CID if you upgrade to JB since the newer HBOOT (v2.00) don't let you do it. That means that for now you won't be able to S-OFF if you upgrate to JB using this method. For now...
Nice one!
Only thing i would add for people to know:
if somebody want to get S-Off, they should change the CID to SuperCID 11111111 (or if you want 22222222,...).
old.splatterhand said:
Nice one!
Only thing i would add for people to know:
if somebody want to get S-Off, they should change the CID to SuperCID 11111111 (or if you want 22222222,...).
Click to expand...
Click to collapse
Done, sir.
It was only said at the bottom of the message at first, but now I put it at the beginning as well.
There's one thing that I'm trying to get though : according to a lot of people and forums, you don't get OTA when you have SuperCID... but some poeple say they do.
It probably changes depending on the type of HTC phone, but also depending on the OTA (some got the first ones, but not the latest...).
I got the ota notification with SuperCID, i think it depends on more things.
But there i'm not far enough into it.
I have had no success at all. My story:
Updated a branded phone to JB, rooted. Then I did a moonshine S-off and changed CID to HTC__001 (even tried 11111111).
I have downloaded a ICS RUU (couldn't find stock K2_UL so I thought that I would download ICS first and then do OTA to JB) but I am getting error 158. I have checked md5 sum and it matches (http://androidfiles.org/ruu/getdown...0.14_2_10.49.40.11L_release_301902_signed.exe). Any ideas?
If you're on jb and hboot 2.00, that's normal... and written in the first post.
There is information that it is impossible to change CID while on JB and with 2.0 hboot, but I guess that I have had success in changing to superCID (at least this is what I can read in bootloader and using fastboot oem readcid command.
So, as far as I understand newer hboot won't let me use older RUU as well, right?
Is there any chance to make this for the k2cl ( boost mobile ) version?
idr666 said:
Is there any chance to make this for the k2cl ( boost mobile ) version?
Click to expand...
Click to collapse
Can you be more specific, what you mean with "this".
old.splatterhand said:
Can you be more specific, what you mean with "this".
Click to expand...
Click to collapse
Sorry, I was wondering if there is a way to update this phone ( the k2cl ) to JB
idr666 said:
Sorry, I was wondering if there is a way to update this phone ( the k2cl ) to JB
Click to expand...
Click to collapse
Boost has no official jb, but i know that there is work for an custom jb rom for boost.
Oh, thank you for the info. Is there any link about this work in progress?
idr666 said:
Oh, thank you for the info. Is there any link about this work in progress?
Click to expand...
Click to collapse
Look here
szympro said:
There is information that it is impossible to change CID while on JB and with 2.0 hboot, but I guess that I have had success in changing to superCID (at least this is what I can read in bootloader and using fastboot oem readcid command.
So, as far as I understand newer hboot won't let me use older RUU as well, right?
Click to expand...
Click to collapse
old.splatterhand, you seem to know this and that about One SV. No chance for older RUU, right? I can't seem to find a clean WWE JB OTA update. I just want a clean, stock, not modified ROM from HTC and I thought RUU is the only way to go :crying: Any advices?
szympro said:
There is information that it is impossible to change CID while on JB and with 2.0 hboot,...
Click to expand...
Click to collapse
This was before moonshine was available. With S-Off i think it should be possible.
So, as far as I understand newer hboot won't let me use older RUU as well, right?
Click to expand...
Click to collapse
I think so.
szympro said:
old.splatterhand, you seem to know this and that about One SV. No chance for older RUU, right? I can't seem to find a clean WWE JB OTA update. I just want a clean, stock, not modified ROM from HTC and I thought RUU is the only way to go :crying: Any advices?
Click to expand...
Click to collapse
To get it a bit clearer.
At this point i'm not very up to date, thats why i didn't answer til now.
I think (but i'm not sure) you can flash the ruu, if you are on hboot 1.0.
And as you are S-Off you should be able to downgrade hboot. But this is a very risky point, you can easily brick your device. Here is, how you have to do:
rollon76 said:
To change hboot you will need a PL80IMG.zip on sdcard with android-info.txt and hboot.img inside it.
reboot to bootloader and flash.
Click to expand...
Click to collapse
The thing what makes it difficult, is to get the hboot.img (its inside ics ruu), cause the htc ruu's encrypted and i only have heard about tools for linux which can decrypt it.
Thanks to your reply I did some research and I have managed to do what I wanted. I have downgraded hboot first (by extracting and encrypting ICS RUU using linux), then I could run RUU and now I am stock ICS with S-off and superCID
Should I post some files from RUU? 1.0 hboot or stock recovery? You guys need something?
Thanks for your helping hand old.splatterhand!
szympro said:
Thanks to your reply I did some research and I have managed to do what I wanted. I have downgraded hboot first (by extracting and encrypting ICS RUU using linux), then I could run RUU and now I am stock ICS with S-off and superCID
Should I post some files from RUU? 1.0 hboot or stock recovery? You guys need something?
Thanks for your helping hand old.splatterhand!
Click to expand...
Click to collapse
Glad, it worked for you.
Yes, of course, everything is appreciated! You can use this thread, please post ruu name too. You can look at my posts there. Hboot, boot.img, recovery, radio, would be fine.
HERE have other ruu
https://www.dropbox.com/sh/1t2zswod7tc97az/5hbzEgTv80
szympro said:
I have downgraded hboot first (by extracting and encrypting ICS RUU using linux)
Click to expand...
Click to collapse
Wow, that's cool !
Did you use rollon's method and flashed PL80IMG.zip in bootloader mode ?
If yes, which android-info.txt did you use ?
If not, how did you do it ?
szympro said:
then I could run RUU and now I am stock ICS with S-off and superCID
Click to expand...
Click to collapse
Even cooler for you.
Did you get the ota update notification for JB then ?
Did you manage to apply it ?
Thanks and congratulations !
Hi everyone.
Just a quick message to confirm that rollon's method works.
To downgrade you need to be S-OFF, extract and decrypt (with ruuveal, using linux or a linux virtualbox runned in windows) hboot and androidinfo from ICS RUU, put them in a zip named PL80IMG.zip, put it on your sd card and boot into bootloader. Then you can run the ICS RUU normally and you'll be back to stock ICS, with a "*** LOCKED ***" bootloader (not relocked !), will be able to go back to S-ON using "fastboot oem writesecureflag 3" (thanks to JMZ)...
You'll then have a locked S-ON out of box phone running 100% stock ICS with original boot, recovery and all that... who'll get the 2 JB OTA's...
In case anyone's interested

[Q] Is it neccessary or possible to downgrade.

Hello,
I want to go back to ICS preferably the 2.20 version on my One XL I am on 3.18 unlocked and s-off is it possible to do this without bricking? If yes than how so? I am pretty competent and confident in my adb and fastboot abilities so this is not an issue however this is my daily use phone and I have no backup device so I really cant afford a brick. (Or else I wouldn't be asking I would find out myself lol) Thanks in advance.
Ameans4 said:
Hello,
I want to go back to ICS preferably the 2.20 version on my One XL I am on 3.18 unlocked and s-off is it possible to do this without bricking? If yes than how so? I am pretty competent and confident in my adb and fastboot abilities so this is not an issue however this is my daily use phone and I have no backup device so I really cant afford a brick. (Or else I wouldn't be asking I would find out myself lol) Thanks in advance.
Click to expand...
Click to collapse
yes, download and run the 2.20 RUU. It's safe as you're S-OFF.
exad said:
yes, download and run the 2.20 RUU. It's safe as you're S-OFF.
Click to expand...
Click to collapse
Ok Thanks. Do I need to relock bootloader or anything? Or just run it.
Ameans4 said:
Ok Thanks. Do I need to relock bootloader or anything? Or just run it.
Click to expand...
Click to collapse
Just run it.
exad said:
Just run it.
Click to expand...
Click to collapse
OK Thanks!!
Ameans4 said:
OK Thanks!!
Click to expand...
Click to collapse
Anytime

[Q] How to run OTA

How do I run the OTA JB 422 zip file I got off here, want to go back to stock Boost 4.2.2 JB, I am on latest Hboot and have TWRP recovery and S-on, the help would be needed, I tried with TWRP but it failed.... thanks for the help :fingers-crossed:
You need stock recovery, stock system partition (nothing removed) and with S-on a locked bootloader.
old.splatterhand said:
You need stock recovery, stock system partition (nothing removed) and with S-on a locked bootloader.
Click to expand...
Click to collapse
There is a step by step guide somewhere?
Thanks
For One SV, not that i know.
old.splatterhand said:
For One SV, not that i know.
Click to expand...
Click to collapse
How to back to S-ON?
There is a risk to loose data?
Thanks old.splatterhand
Seek
S-on is a simple fastboot command.
But that way you don't get stock system.
Easiest way if you are S-off is a hboot downgrade and running a RUU.
For that i made a guide, look into my index thread.
And yes, you will loose your data this way.
old.splatterhand said:
S-on is a simple fastboot command.
But that way you don't get stock system.
Click to expand...
Click to collapse
No problem for that, I don't need bloatware from phone operator...
old.splatterhand said:
Easiest way if you are S-off is a hboot downgrade and running a RUU.
For that i made a guide, look into my index thread.
Click to expand...
Click to collapse
With this guide? http://forum.xda-developers.com/showthread.php?t=2541843
old.splatterhand said:
And yes, you will loose your data this way.
Click to expand...
Click to collapse
There is a GOOD reason for that?
Anyway, a good software for doing & restore a backup? It's the wife's phone, and..............
Thanks again
Seek
For what reason do you want to go S-on?
I would only do that for warranty or if you want to sell it!
This is the wrong thread, the guide thread i mean is made by me.
old.splatterhand said:
For what reason do you want to go S-on?
I would only do that for warranty or if you want to sell it!
This is the wrong thread, the guide thread i mean is made by me.
Click to expand...
Click to collapse
I won't sell it, only update the firmware to the latest official version.
Possibly, flash a firmware without bloatware.
So what software are you running?
old.splatterhand said:
So what software are you running?
Click to expand...
Click to collapse
I'll check it asap, give me some hours! :good:
old.splatterhand said:
So what software are you running?
Click to expand...
Click to collapse
Android: 4.1.2
HTC Sense: 4+
SW #: 2.15.901.103
Build #: 2.15.901.103 CL171556
Base band: 1.15.40a.00.07_10.75a.40.23L
You have a branded phone. That means, you need a backup (from yourself or maybe someone else) with the exactly same software number to get the next update. It does not help to flash a free, stock rom.
Or, you debrand your phone, with supercid, hboot downgrade and RUU (which means losing data).
The choice is yours...
---------- Post added at 10:00 PM ---------- Previous post was at 09:21 PM ----------
In case you want to debrand, this is the guide: http://forum.xda-developers.com/showthread.php?t=2386426
Make sure, you have Supercid before.
old.splatterhand said:
Or, you debrand your phone, with supercid, hboot downgrade and RUU (which means losing data).
The choice is yours...
Click to expand...
Click to collapse
It's the only way.
In case you want to debrand, this is the guide: http://forum.xda-developers.com/showthread.php?t=2386426
Make sure, you have Supercid before.[/QUOTE]
In this guide, the download link are broken.
I can't find the correct moonshine s-off for my version, what I must use?
Thanks again
I thought you are already S-off?
What link is broken, they seem to work fine on my end.
old.splatterhand said:
I thought you are already S-off?
What link is broken, they seem to work fine on my end.
Click to expand...
Click to collapse
Now works, Iit was a problem with DNS, sorry!
A nice software to make & restore a full backup of the phone?
A nand backup in recovery is a "must".
For userdata the app you need is Titanium Backup!

Converting AT&T carrier unlocked HTC One A9 from stock 1.27.502.5 to Nougat

Hey All,
Apologies if this is obvious but I couldn't figure it out myself looking at the FAQ's etc.
I just purchased a new HTC One A9 which was carrier unlocked by AT&T, and I want to convert from the RUU version they use (1.27.502.5) to the latest version that HTC has released on their website - 2.18.617.10 .
However, when I go to do this using that RUU, I get signature error 132. My phone is bootloader locked and S-ON, but from reading a little, I thought that shouldn't matter because I have a US phone, and you only need to change the CID/MID stuff (whatever those are) if you're in a different region?
How would I go about doing this? From reading through a bunch of posts, do I first need to switch to an unlocked version of Marshmallow, before then upgrading to Nougat?
Edit: Upon further reading, does the fact that the 502 in my current version does not match 617 in the one I wish to upgrade to mean that I can't do this with S-on? Do I need S-off? If so, how do I do that? Is it only by purchasing sunshine?
Thank you for your time!
Best,
-BBsmitz
bbsmitz said:
Hey All,
Apologies if this is obvious but I couldn't figure it out myself looking at the FAQ's etc.
I just purchased a new HTC One A9 which was carrier unlocked by AT&T, and I want to convert from the RUU version they use (1.27.502.5) to the latest version that HTC has released on their website - 2.18.617.10 .
However, when I go to do this using that RUU, I get signature error 132. My phone is bootloader locked and S-ON, but from reading a little, I thought that shouldn't matter because I have a US phone, and you only need to change the CID/MID stuff (whatever those are) if you're in a different region?
How would I go about doing this? From reading through a bunch of posts, do I first need to switch to an unlocked version of Marshmallow, before then upgrading to Nougat?
Edit: Upon further reading, does the fact that the 502 in my current version does not match 617 in the one I wish to upgrade to mean that I can't do this with S-on? Do I need S-off? If so, how do I do that? Is it only by purchasing sunshine?
Thank you for your time!
Best,
-BBsmitz
Click to expand...
Click to collapse
In order to convert to another carrier version, you must change your CID and MID to match the RUU version you want to flash. .617 uses the same MID as .502 so you'll need to change your CID only from CWS__001 to BS_US001. Changing CID does requires S-OFF (Sunshine is the best way unless you know someone with a XTC2Clip box).
You'll also need to update your firmware to Nougat before flashing the Nougat RUU because of the signature change implemented in Nougat.
Everything explained here:
https://forum.xda-developers.com/showpost.php?p=63640734&postcount=2
Read faq 1-2-3-4
alray said:
In order to convert to another carrier version, you must change your CID and MID to match the RUU version you want to flash. .617 uses the same MID as .502 so you'll need to change your CID only from CWS__001 to BS_US001. Changing CID does requires S-OFF (Sunshine is the best way unless you know someone with a XTC2Clip box).
You'll also need to update your firmware to Nougat before flashing the Nougat RUU because of the signature change implemented in Nougat.
Everything explained here:
https://forum.xda-developers.com/showpost.php?p=63640734&postcount=2
Read faq 1-2-3-4
Click to expand...
Click to collapse
Okay thanks so much Two more quick questions.
1) Does changing to S-off have any consequences in terms of a future update? I'm guessing it will void my warranty, but say I wanted to go back to using AT&T's version of android. Would the fact that my phone is now S-off prevent me from using their RUU (assuming I change the CID back.) I guess my question is, warranty aside, is there really any negative to turning S-off?
2) This is more out of curiosity. HTC One Phones that were sold unlocked/developer that are currently running Marshmallow can be upgraded to Nougat without flashing the firmware to 2.xx.xxx.x right? So if I was to change my current CID to that of a developer One A9, and install that Marshamallow RUU say (1.57.617.60), why wouldn't I be able to simply update from within the OS as they do?
Thanks again for your time.
Best,
Bbsmitz
bbsmitz said:
Okay thanks so much Two more quick questions.
1) Does changing to S-off have any consequences in terms of a future update?
Click to expand...
Click to collapse
No, after converting to another version, you'll receive ota updates for that version.
I'm guessing it will void my warranty,
Click to expand...
Click to collapse
Yes an no. There's always the possibility to revert back to your original version and hide everything you've done.
but say I wanted to go back to using AT&T's version of android. Would the fact that my phone is now S-off prevent me from using their RUU (assuming I change the CID back
Click to expand...
Click to collapse
You would simply have to revert your CID back to CWS__001 and flash the at&t ruu. Changing the cid is easily done.
I guess my question is, warranty aside, is there really any negative to turning S-off?
Click to expand...
Click to collapse
S-off gives you full control and access to all partitions which mean there is no more mechanism preventing you to flash incompatible software/firmware on your phone. Once s-off, be sure to understand what you're doing before flashing files. The risk is limited if you'll only be converting to another version or flashing custom roms but if you're going to explore a little deeper yeah it can be dangerous.
2) This is more out of curiosity. HTC One Phones that were sold unlocked/developer that are currently running Marshmallow can be upgraded to Nougat without flashing the firmware to 2.xx.xxx.x right? So if I was to change my current CID to that of a developer One A9, and install that Marshamallow RUU say (1.57.617.60), why wouldn't I be able to simply update from within the OS as they do?
Click to expand...
Click to collapse
All A9 can simply be updated from the OS, not only the unlocked/dev version. The reason why you need to flash the firmware first before flashing a RUU is that HTC changed their encryption signature in Nougat. That mean your phone need the new decryption key to be able to flash Nougat RUU. Flashing the firmware first will update your phone with the new key, making it able to flash Nougat RUU.
There is a firmware.zip file inside ota updates. When you install an ota update from the OS, the first thing that is flashed on your phone is that firmware.zip. So no you don't need to manually flash the firmware because it's done automatically in the ota process.
Yes you could flash the 1.57.617.30 ruu and do the ota update after. It's just faster to flash the Nougat firmware first and the Nougat RUU instead of flashing the Marshmallow RUU and downloading + installing 2 ota udpates, well that's my opinion. Both methods will give the same result.
alray said:
No, after converting to another version, you'll receive ota updates for that version.
Yes an no. There's always the possibility to revert back to your original version and hide everything you've done.
You would simply have to revert your CID back to CWS__001 and flash the at&t ruu. Changing the cid is easily done.
S-off gives you full control and access to all partitions which mean there is no more mechanism preventing you to flash incompatible software/firmware on your phone. Once s-off, be sure to understand what you're doing before flashing files. The risk is limited if you'll only be converting to another version or flashing custom roms but if you're going to explore a little deeper yeah it can be dangerous.
All A9 can simply be updated from the OS, not only the unlocked/dev version. The reason why you need to flash the firmware first before flashing a RUU is that HTC changed their encryption signature in Nougat. That mean your phone need the new decryption key to be able to flash Nougat RUU. Flashing the firmware first will update your phone with the new key, making it able to flash Nougat RUU.
There is a firmware.zip file inside ota updates. When you install an ota update from the OS, the first thing that is flashed on your phone is that firmware.zip. So no you don't need to manually flash the firmware because it's done automatically in the ota process.
Yes you could flash the 1.57.617.30 ruu and do the ota update after. It's just faster to flash the Nougat firmware first and the Nougat RUU instead of flashing the Marshmallow RUU and downloading + installing 2 ota udpates, well that's my opinion. Both methods will give the same result.
Click to expand...
Click to collapse
Edit2: I figured out the problem. I had to boot into the bootloader and then run
Code:
htc_fastboot oem rebootRUU
before I could run the RUU sucessfully. Am leaving the rest of this post up just so that other people googling this have a touch point.
Okay so I've used Sunshine to turn s-off and unlock my bootloader. I then changed my CID to BS_US001.
I then tried to install the HTC version of Marshmallow (maybe silly, but heard people having issues with Nougat and the battery) using the RUU.exe file. It started successfully, but then halfway though, after it had transferred the ROM over, it threw an ERROR155 and aborted, leaving my phone with an empty progress bar, and that circular green arrow icon in the middle. I used the command line to restart my device and had to factory wipe it, but otherwise not the worse for wear.
I tried googling it; do I need to relock my bootloader for the RUU.exe files to work? I think the Sunshine FAQ recommended against doing that. Is this a risky step?
Edit: Here are some instructions I found from the HTC One M8 firmware flashing thread. My error says "unknown" but I imagine its similar.
For “Error 155 relock bootloader" do:
- Since my thread works only with S-OFF phones anyway, this error can be read as: you need to S-OFF first!
- Error 155 can mean that you need SuperCID. On a few occasions this was shown when the RUU/FUU refused to run because of a wrong region lock.
- Lately, Error 155 has occurred when a FUU was launched from within android. When encountering a FUU error 155 with the process stalling after the rebootRUU (stuck at black screen with silver HTC logo), please just restart the FUU and leave the phone in that mode, or reboot the phone, then reboot to bootloader, then do “htc_fastboot oem rebootRUU” and then launch the FUU again (thanks @anarchychris for pointing it out).
- run the fastboot command “htc_fastboot oem lock" - only applies to S-ON phones that want to update the firmware with a stock OTA package (not offered on this thread!!). Stock OTA files sometimes need a locked bootloader.
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help
Is this guide convert AT&T bindings factory unlocked htc? I cant access wifi hotspot. also cant run RRU.
hiii i have htc one a9300 by mistak i wipe every thing including internal memory now my fon sows that no "os install are you sure wanto reboot " please tell me wat to do now
AT&T conversion
alray said:
In order to convert to another carrier version, you must change your CID and MID to match the RUU version you want to flash. .617 uses the same MID as .502 so you'll need to change your CID only from CWS__001 to BS_US001. Changing CID does requires S-OFF (Sunshine is the best way unless you know someone with a XTC2Clip box).
You'll also need to update your firmware to Nougat before flashing the Nougat RUU because of the signature change implemented in Nougat.
Everything explained here:
https://forum.xda-developers.com/showpost.php?p=63640734&postcount=2
Read faq 1-2-3-4
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How do I get started to do this. How do I find out my mid Cid and if I need to change? How do I flash firmware first? I have android 6.0 software 1.27.502.5. I have done a run before but never changed from a carrier. I went to the link above but I don't know what some if this means and where to start and what steps to take in order.

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