Develop Bugs

[Q] Questions on rooting, recovery and ROM's (ex-Samsung user)

OK. I'm a little bit lost in the HTC world!
I've had a Samsung Galaxy Note II for the last year and have just replaced it with the HTC ONE (M8). I found the whole rooting and ROM procedure relatively straight forward with the Note II. In a nutshell you:
1) Rooted with a Windows based application
2) Installed / Flashed a recovery system
3) Flashed a custom ROM using a Windows based application called ODIN
And that was that. Pretty straightforward. Having had a nose around the HTC forum it's awash with clever folk using abbreviations and acronyms like CID, RUU and S-OFF...!
My M8 is on EE network in the UK which I know is CID ORANG001. What I would like though is to convert my M8 to a generic European M8 so I can receive the latest HTC updates rather then await EE to push out their version. This therefore prompts me to ask the following questions:
1) Is this something we will be able to achieve?
2) What is the (potential) process to achieve this (assuming something similar for the M7 already exists)?
2) Will over the air updates work?
I've read numerous posts which seem contradicting. Some talk about a simple change of the CID others mention S-OFF as the GOD of everything related to the subject. If I were to guess, changing the CID seems too simple, but I'm guessing once changed to a generic EU CID it's possible to receive HTC's OTA updates? Or am I wrong there? Or having another guess I would assume I'd need to go down the lines similar to Samsung process of rooting or S-OFF (security off?) and flashing a generic stock EU ROM?
So what CAN currently be achieved and what CAN'T currently be achieved?
I guess I could do with a little background on these processes and the terminology used.
Any help, greatly appreciated.

Can :
Unlock the bootloader and flash a custom recovery to install a custom rom based on the latest firmware. You are depending on rom updates from the dev if he updates it to the latest software/firmware
Can't :
S-off
Change cid
Get ota via another rom
Run a ruu because they are simply not available
So to receive ota you need your original stock rom. And before you start messing around please make a stock nandroid backup and store it !
http://forum.xda-developers.com/showthread.php?t=2701376

Chris_c81 said:
OK. I'm a little bit lost in the HTC world!
I've had a Samsung Galaxy Note II for the last year and have just replaced it with the HTC ONE (M8). I found the whole rooting and ROM procedure relatively straight forward with the Note II. In a nutshell you:
1) Rooted with a Windows based application
2) Installed / Flashed a recovery system
3) Flashed a custom ROM using a Windows based application called ODIN
And that was that. Pretty straightforward. Having had a nose around the HTC forum it's awash with clever folk using abbreviations and acronyms like CID, RUU and S-OFF...!
My M8 is on EE network in the UK which I know is CID ORANG001. What I would like though is to convert my M8 to a generic European M8 so I can receive the latest HTC updates rather then await EE to push out their version. This therefore prompts me to ask the following questions:
1) Is this something we will be able to achieve?
2) What is the (potential) process to achieve this (assuming something similar for the M7 already exists)?
2) Will over the air updates work?
I've read numerous posts which seem contradicting. Some talk about a simple change of the CID others mention S-OFF as the GOD of everything related to the subject. If I were to guess, changing the CID seems too simple, but I'm guessing once changed to a generic EU CID it's possible to receive HTC's OTA updates? Or am I wrong there? Or having another guess I would assume I'd need to go down the lines similar to Samsung process of rooting or S-OFF (security off?) and flashing a generic stock EU ROM?
So what CAN currently be achieved and what CAN'T currently be achieved?
I guess I could do with a little background on these processes and the terminology used.
Any help, greatly appreciated.
Click to expand...
Click to collapse
Also not familiar anymore with HTC. After reading and reading and still not finding the exact answers to my questions, so I simply (after unlocking and flash TWRP recovery and backing up) tried to flash Virtuous ROM (1.54.401.5) over my German o2 device (1.12.206.17, CID O2___001). Everything worked except WiFi, so I tried a last call with mikes ARHD Rom 3.1, before going back to stock. And this ROM works brilliantly!
But I would also be happy if the OP questions could be answered...
@Mr Hofs
1. the WiFi problem discribed above could be firmware related?
2. When my Provider o2 brings out an update with firmware, can I simply relock bootloader and push the (perhaps) available firmware.zip it to the device via fastboot like mike explains in his firmware thread?

Edit :
Well that would be weird as both roms the OP flashed are based on 1.54.401 so i would say no.....

Mr Hofs said:
Can :
Unlock the bootloader and flash a custom recovery to install a custom rom based on the latest firmware. You are depending on rom updates from the dev if he updates it to the latest software/firmware
Can't :
S-off
Change cid
Get ota via another rom
Run a ruu because they are simply not available
So to receive ota you need your original stock rom. And before you start messing around please make a stock nandroid backup and store it !
http://forum.xda-developers.com/showthread.php?t=2701376
Click to expand...
Click to collapse
OK thanks. Few more questions if I may.
So from the "can't" list, IF we can get the ability to change CID and have S-OFF in the future, would it provide the ability to receive OTA updates when HTC push them out, or are OTA updates simply out of the game entirely?
Sent from my HTC One_M8 using Tapatalk

Yes that should be possible , all you need then is
Changed cid
Stock rom
Stock kernel
Stock recovery
Or the ruu (if available)
Then the phone is ready for ota updates.

Mr Hofs said:
Yes that should be possible , all you need then is
Changed cid
Stock rom
Stock kernel
Stock recovery
Or the ruu (if available)
Then the phone is ready for ota updates.
Click to expand...
Click to collapse
Great thanks. Last question then, what is RUU?
I'll keep your thread bookmarked and attempt to get a backup in there.
Sent from my HTC One_M8 using Tapatalk

A ruu is a Rom Update Utility and it contains the rom, kernel, firmware, recovery (and some more stuff). When a ruu is installed its like the phone is factory stock.

Mr Hofs said:
A ruu is a Rom Update Utility and it contains the rom, kernel, firmware, recovery (and some more stuff). When a ruu is installed its like the phone is factory stock.
Click to expand...
Click to collapse
OK brilliant thanks. Really appreciate your help.
Sent from my HTC One_M8 using Tapatalk

Super CID ? ?

M8 ul, HTC__001, 2.22.401.05
S-off, rooted, unlocked bootloader
If I super cid my handset does that mean I can use ANY RUU suitable for "international m8" even if the RUU has an older hboot and firmware ?
Currently on ARHD 11.1 and trying to work out best, and easiest, way to get back for stock for OTA "L" update when it comes.
Thanks
Sent from my unknown using XDA Free mobile app

I believe the super CID means you can install any RUU period - sort of like a skeleton key. It's then up to you to make sure that you are installing an appropriate version.
If you just need to go back to stock, however, you only need a CID for your carrier/region (or developer edition) and the appropriate RUU.

jshamlet said:
I believe the super CID means you can install any RUU period - sort of like a skeleton key.
Click to expand...
Click to collapse
It won't allow you to "downgrade" or run an RUU with a lower hboot number. Although s-off will allow this.
To the OP, does a RUU for any international M8 even exist? AFAIK only US variants have RUUs. You will probably have to find your carrier's nandroid, and stock recovery to return to stock for OTA.
But if you are willing to flash custom ROMs, there will probably be custom ROMs based on Android "L" soon after it starts rolling out OTA. Possibly even faster than waiting for your carrier version.

redpoint73 said:
It won't allow you to "downgrade" or run an RUU with a lower hboot number. Although s-off will allow this.
To the OP, does a RUU for any international M8 even exist? AFAIK only US variants have RUUs. You will probably have to find your carrier's nandroid, and stock recovery to return to stock for OTA.
But if you are willing to flash custom ROMs, there will probably be custom ROMs based on Android "L" soon after it starts rolling out OTA. Possibly even faster than waiting for your carrier version.
Click to expand...
Click to collapse
Will, more than likely, use mikes "version" of L when released. Main reason I want to get OTA update is so my firmware is updated for L.
My handset is not locked to any carrier, sim free UK handset.
Thanks
Edit, was just curious as to the benefits of super cid. I've got my own "complete" nandroid, no missing data, so as I was told by mr hofs yesterday all I need to do is flash one of his stock recoveries.
Sent from my unknown using XDA Free mobile app

[Q] I got the indian m8, Am i limited to anything in regards to flashing?

Hi, I bought an unlocked htc one m8 but i recieved the indian version (m8q) and I'm not from india, Everything works fine and I called htc and they told me that I shouldn't have a problem since the indian verison comes with international warrenty.
The only thing I'm worried about here is compatibility with the stuff here on xda, will i be able to flash roms without probelms and will i be able to convert it to a gpe device if i wanted to.
The Cid is HTC__038, the model id is 0P6B65000 the software version i have currently is 1.56.720.6 and the product name (from the getvar all command) is m8_ul. Is the hardware incompatible with roms made for the international gsm version (with the sku 401) or can i just change the cid/mid or make it supercid to use it with any of the guides hosted here.
I havent been able to find anything so i would really appreciate any help.

I own the same device and to be true, the Indian Variant lacks support for all Sense based ROMs as they are based on different model with different CID and MID number. Custom ROMs work fine.
If you are very proficient with flashing stuff in HTC devices then you can use firewater to S-OFF on 4.4.2 . Ver. 4.4.3 has patched some vulnerabilities that do not allow firewater S-OFF to work nor the sunshine one.
I had already updated to 4.4.3 due to which now it's currently impossible for me to obtain S-OFF.
Also Indian Variants have yet not received the latest updates i.e. 4.4.4

Mayank7795 said:
I own the same device and to be true, the Indian Variant lacks support for all Sense based ROMs as they are based on different model with different CID and MID number. Custom ROMs work fine.
If you are very proficient with flashing stuff in HTC devices then you can use firewater to S-OFF on 4.4.2 . Ver. 4.4.3 has patched some vulnerabilities that do not allow firewater S-OFF to work nor the sunshine one.
I had already updated to 4.4.3 due to which now it's currently impossible for me to obtain S-OFF.
Also Indian Variants have yet not received the latest updates i.e. 4.4.4
Click to expand...
Click to collapse
Thanks for the reply, but are you saying that If i can acheive s-off and change the cid and mid will that make the device compatible with the roms or will flashing them brick my device? Also, do you have any idea about compatibilty with gpe based roms?

tinclan said:
Thanks for the reply, but are you saying that If i can acheive s-off and change the cid and mid will that make the device compatible with the roms or will flashing them brick my device? Also, do you have any idea about compatibilty with gpe based roms?
Click to expand...
Click to collapse
This is my first HTC device and the first expensive one that I bought so I am being really cautious about tampering my phone.
Yes, if you achieve S-OFF, then you can change your CID. Don't know about MID (I have yet to know more about it). Then flashing other Sense-based ROMs should be fairly easy.
But after you achieve S-OFF, you need to be more cautious while flashing anything as the security would have been totally put off and whichever file you flash will be flashed without any error and may result in your device getting bricked if a wrong file is flashed.
It will be really great to backup the important partitions like recovery, boot, system etc. if you are still stock (not bootloader unlocked and not rooted)
To backup important partitions, visit this thread for instructions. (Be sure to backup your stock recovery as it will be needed to receive OTA updates) - http://forum.xda-developers.com/showthread.php?t=2701376
IMPORTANT: Read the Question "How do i backup the stock HTC recovery ?" and the procedure below that in the provided thread properly to successfully backup your device's partition.
~~Other Helpful threads which needs a reading~~
♦ HTC One M8 F.A.Q's
♦ HTC ONE M8 Repository

Mayank7795 said:
This is my first HTC device and the first expensive one that I bought so I am being really cautious about tampering my phone.
Yes, if you achieve S-OFF, then you can change your CID. Don't know about MID (I have yet to know more about it). Then flashing other Sense-based ROMs should be fairly easy.
But after you achieve S-OFF, you need to be more cautious while flashing anything as the security would have been totally put off and whichever file you flash will be flashed without any error and may result in your device getting bricked if a wrong file is flashed.
It will be really great to backup the important partitions like recovery, boot, system etc. if you are still stock (not bootloader unlocked and not rooted)
To backup important partitions, visit this thread for instructions. (Be sure to backup your stock recovery as it will be needed to receive OTA updates) - http://forum.xda-developers.com/showthread.php?t=2701376
IMPORTANT: Read the Question "How do i backup the stock HTC recovery ?" and the procedure below that in the provided thread properly to successfully backup your device's partition.
~~Other Helpful threads which needs a reading~~
♦ HTC One M8 F.A.Q's
♦ HTC ONE M8 Repository
Click to expand...
Click to collapse
This is my first htc phone too, actually this is my first high end android phone. I am just as paranoid about doing anything as you, i just wanted to make sure i'm not stuck forever, because i it was impossible to change the software of this phone i would've just sold it from now, purely because imo new software adds the most value to smartphone these days. I am a bit confused, but for now i decided to not install any updates until i figure out whats possible to do without screwing up myself

tinclan said:
This is my first htc phone too, actually this is my first high end android phone. I am just as paranoid about doing anything as you, i just wanted to make sure i'm not stuck forever, because i it was impossible to change the software of this phone i would've just sold it from now, purely because imo new software adds the most value to smartphone these days. I am a bit confused, but for now i decided to not install any updates until i figure out whats possible to do without screwing up myself
Click to expand...
Click to collapse
That's a good decision for now..
I did the mistake of not backing up recovery partition after I updated and instantly unlocked and rooted my phone but luckily I got the stock recovery from another thread.

tinclan said:
This is my first htc phone too, actually this is my first high end android phone. I am just as paranoid about doing anything as you, i just wanted to make sure i'm not stuck forever, because i it was impossible to change the software of this phone i would've just sold it from now, purely because imo new software adds the most value to smartphone these days. I am a bit confused, but for now i decided to not install any updates until i figure out whats possible to do without screwing up myself
Click to expand...
Click to collapse
Mayank7795 said:
That's a good decision for now..
I did the mistake of not backing up recovery partition after I updated and instantly unlocked and rooted my phone but luckily I got the stock recovery from another thread.
Click to expand...
Click to collapse
Thanks for all the help. I have one last question if you wouldnt mind answering, are all the gpe based rooms compatible with our version of the device, and can i flash the gpe ruu without bricking the thing if i got s-off.

tinclan said:
Thanks for all the help. I have one last question if you wouldnt mind answering, are all the gpe based rooms compatible with our version of the device, and can i flash the gpe ruu without bricking the thing if i got s-off.
Click to expand...
Click to collapse
Sorry but I seriously don't know because I never took an interest in converting my device to GPE.
I like the stock look.

HELP need serious advice here.

Hi,good afternoon,my friend brought me his HTC one m9,because i have experience with these things, i have flashed many devices of different brands but this is my first HTC device.
Well the problem is this:
He unlocked the botloader,installed TWRP ,super SU.zip (via twrp) and a custom rom with s-on,after that he lost signal,the phone does not have imei and baseband is uknown.
I've searched trough xda ,before posting this,so i came across with a thread that said that the phone can recover signal flashing a custom rom and a kernel,did that with no success. And also i've read that returning the bootloader to locked status,will allow me to flash a RUU file in order to get back to stock.
So, i relocked the bootloader,using CMD, but now the phone just boots into bootloader ,i can enter download mode aswell,but its stucked there.
Phone is recognized by windows,via fastboot.
So,the phone status is bootloader relocked,and s-on.
i´ve tried flashing the RUU via sdcard on download mode and gives me error,also i tried using fastboot commands and the result is the same,i can not flash the RUU file.
Any suggestions are very apreciated. Thanks fot your time.

kalel29 said:
Hi,good afternoon,my friend brought me his HTC one m9,because i have experience with these things, i have flashed many devices of different brands but this is my first HTC device.
Well the problem is this:
He unlocked the botloader,installed TWRP ,super SU.zip (via twrp) and a custom rom with s-on,after that he lost signal,the phone does not have imei and baseband is uknown.
I've searched trough xda ,before posting this,so i came across with a thread that said that the phone can recover signal flashing a custom rom and a kernel,did that with no success. And also i've read that returning the bootloader to locked status,will allow me to flash a RUU file in order to get back to stock.
So, i relocked the bootloader,using CMD, but now the phone just boots into bootloader ,i can enter download mode aswell,but its stucked there.
Phone is recognized by windows,via fastboot.
So,the phone status is bootloader relocked,and s-on.
i´ve tried flashing the RUU via sdcard on download mode and gives me error,also i tried using fastboot commands and the result is the same,i can not flash the RUU file.
Any suggestions are very apreciated. Thanks fot your time.
Click to expand...
Click to collapse
For download mode SD card method:
Make sure you're using an external SD card, not internal storage.
Make sure SD card is formatted properly.
Make sure file is named 100% correctly and is meant for that specific carrier /model.
No reason it shouldn't work.
Sent from my HTC6545LVW using Tapatalk

kalel29 said:
i´ve tried flashing the RUU via sdcard on download mode and gives me error,also i tried using fastboot commands and the result is the same,i can not flash the RUU file.
Click to expand...
Click to collapse
Are you sure you flashed the correct one? Some basic information about firmware versions, RUUs and instructions how to flash them can be found in my sticky thread in the general section.
Concerning the reception problem: It's important whether you tried to use a sense-based custom rom or a non-sense-based one. The mono-kernel only works with non-sense roms like CM or Candysix. Moreover the reception problem has been covered in this thread some days ago. If you want to use a sense-based rom the re-flash boot.img "trick" might be working for you, too.
Sidenote: There is absolutely no need for flashing SuperSU if you are going to erase the system and to flash a custom com. It doesn't harm the device but it's a waste of time.

Flippy498 said:
Are you sure you flashed the correct one? Some basic information about firmware versions, RUUs and instructions how to flash them can be found in my sticky thread in the general section.
Concerning the reception problem: It's important whether you tried to use a sense-based custom rom or a non-sense-based one. The mono-kernel only works with non-sense roms like CM or Candysix. Moreover the reception problem has been covered in this thread some days ago. If you want to use a sense-based rom the re-flash boot.img "trick" might be working for you, too.
Sidenote: There is absolutely no need for flashing SuperSU if you are going to erase the system and to flash a custom com. It doesn't harm the device but it's a waste of time.
Click to expand...
Click to collapse
Yes I flashed the one for my operator. Can I flash another RUU?
About your links, I'll check them when I get back from work. Thanks.

Is your phone branded by your carrier? (Can be checked by looking at the SKU of the currently installed firmware.) If not then it's the wrong RUU. Is the RUU made for the same firmware version as the one that is currently installed on the phone or does the RUU even have a newer version? If not then it's the wrong RUU.

Flippy498 said:
Is your phone branded by your carrier? (Can be checked by looking at the SKU of the currently installed firmware.) If not then it's the wrong RUU. Is the RUU made for the same firmware version as the one that is currently installed on the phone or does the RUU even have a newer version? If not then it's the wrong RUU.
Click to expand...
Click to collapse
Hi again, the phone is giving me this error :

im still lost ,hope this helps to point me in the right direction.
Code:
D:\Francisco\Desktop\HTC\fastboot_adb\fastboot_adb>fastboot getvar all
(bootloader) kernel: lk
(bootloader) product: htc_himaulatt
(bootloader) version: 1.0
(bootloader) imei:
(bootloader) version-main: 3.44.600.1
(bootloader) boot-mode: RUU
(bootloader) version-baseband: 01.01_U11440801_97.04.60111G_F
(bootloader) version-bootloader: 1.0.0.0000
(bootloader) mid: 0PJA11000
(bootloader) cid: HTC__332
all:
finished. total time: 0.033s
Thanks

You still didn't mention the name of the RUU you wanted to flash. However a quick search for your SKU (Telcel Mexico) showed me that there is no RUU available you could use. The only one I could find is linked in my thread and that one is too old for your phone since you can't downgrade the firmware with S-ON. You either need to re-unlock the bootloader, flash a sense-based custom rom and buy the sunshine app or try to find someone who has a java card. Both solutions would set the phone S-OFF so that you would be able to use that old RUU. Alternatively you could contact Llabtoofer (a link can be found in my thread and in my google sheet). He has a RUU service with RUUs that are not available publicly*. Neither the sunshine app, nor a java nor the RUU service are for free. Llabtoofer and the sunshine app cost nearly the same. I don't know how much you need to pay for java card services. Be aware that even if it's OK if the phone is running a custom right now** and you don't want to use any of these solutions that you still lack a way back to stock if a new OTA (like the one for Android N) gets distributed and therefore you won't be able to install it.
If you use the old RUU all OTAs that got installed on your phone will need to get re-installed.
However you choose you should read the tab "make your own backup" of my sheet after the phone got recovered and all available OTAs got installed but before anyone starts flashing anything, again. This way you will learn how to create a backup that will help you out if you face such a situation, again. Instructions how to restore such a backup correctly can be found in the tab "twrp backups".You'll always need to create a new backup when a new OTA got installed on your phone and you want to re-root it. Besides if you're willing you could upload the backup (and any upcoming ones) and share it(/them) with the xda community by posting the download link(s) in my thread.
* He wants to know the hboot version of your phone of you request his help. Since the One M9 has no hboot but an aboot and that one never got updated you can enter version 1.0.0.0000. That's the current aboot version.
** Possible solutions for recovering the reception can be found in my first post in this thread. There is no need to flash a RUU since your IMEI and your baseband are still intact but the boot.img of the rom you tried to use was/is incompatible.

Flippy498 said:
You still didn't mention the name of the RUU you wanted to flash. However a quick search for your SKU (Telcel Mexico) showed me that there is no RUU available you could use. The only one I could find is linked in my thread and that one is too old for your phone since you can't downgrade the firmware with S-ON. You either need to re-unlock the bootloader, flash a sense-based custom rom and buy the sunshine app or try to find someone who has a java card. Both solutions would set the phone S-OFF so that you would be able to use that old RUU. Alternatively you could contact Llabtoofer (a link can be found in my thread and in my google sheet). He has a RUU service with RUUs that are not available publicly*. Neither the sunshine app, nor a java nor the RUU service are for free. Llabtoofer and the sunshine app cost nearly the same. I don't know how much you need to pay for java card services. Be aware that even if it's OK if the phone is running a custom right now** and you don't want to use any of these solutions that you still lack a way back to stock if a new OTA (like the one for Android N) gets distributed and therefore you won't be able to install it.
If you use the old RUU all OTAs that got installed on your phone will need to get re-installed.
However you choose you should read the tab "make your own backup" of my sheet after the phone got recovered and all available OTAs got installed but before anyone starts flashing anything, again. This way you will learn how to create a backup that will help you out if you face such a situation, again. Instructions how to restore such a backup correctly can be found in the tab "twrp backups".You'll always need to create a new backup when a new OTA got installed on your phone and you want to re-root it. Besides if you're willing you could upload the backup (and any upcoming ones) and share it(/them) with the xda community by posting the download link(s) in my thread.
* He wants to know the hboot version of your phone of you request his help. Since the One M9 has no hboot but an aboot and that one never got updated you can enter version 1.0.0.0000. That's the current aboot version.
** Possible solutions for recovering the reception can be found in my first post in this thread. There is no need to flash a RUU since your IMEI and your baseband are still intact but the boot.img of the rom you tried to use was/is incompatible.
Click to expand...
Click to collapse
Ok,thanks, and yes,the RUU I was trying to flash I the telcel one.
I'm going to tell my fiend that he needs to pay in order to get his phone working.
Thanks again for everything. Have a nice day.

Update
I managed to unlock the bootloader again, the phone boots, but it has no signal.
Do I need sunshine and then flash any ruu?
Or what can I do? BTW my friend agreed to pay for sunshine.

kalel29 said:
Update
I managed to unlock the bootloader again, the phone boots, but it has no signal.
Do I need sunshine and then flash any ruu?
Or what can I do? BTW my friend agreed to pay for sunshine.
Click to expand...
Click to collapse
Is it a sense-based rom? If yes, did you reflash the stock boot.img? Or is it a non-sense-based rom? In that case the mono kernel which is linked above needs to be flashed for recovering the reception.
If you're currently using a sense-based rom (which is not an HTC 10 port - e.g. Viper one m9 4.3) then you can install the sunshine app and start it. The app will explain the rest of the procedure. Just google "sunshine s-off" and you'll find it. After your phone got S-OFF you simply need to try reflashing the RUU.

Flippy498 said:
Is it a sense-based rom? If yes, did you reflash the stock boot.img? Or is it a non-sense-based rom? In that case the mono kernel which is linked above needs to be flashed for recovering the reception.
If you're currently using a sense-based rom (which is not an HTC 10 port - e.g. Viper one m9 4.3) then you can install the sunshine app and start it. The app will explain the rest of the procedure. Just google "sunshine s-off" and you'll find it. After your phone got S-OFF you simply need to try reflashing the RUU.
Click to expand...
Click to collapse
The phone has the ICE rom,Twrp and superSU,I think it's a sense-based rom, sorry I can't give you more info, as I said I'm new in flashing HTC, but I'm learning thanks to you.

ICE is sense-based. It's using HTCs own launcher and framework which is called Sense. Examples for non-sense-based roms are CM, CandySix or other AOSP roms.
Depending on the version of ICE that got flashed on the phone you might need to revert back to an older version*. The newest ICE rom is based on an HTC 10 port and I've read several posts of users reporting that they couldn't use sunshine with an HTC 10 port.
* I don't know which version that would be. I've never used ICE so you would need to figure that out on your own.

Flippy498 said:
ICE is sense-based. It's using HTCs own launcher and framework which is called Sense. Examples for non-sense-based roms are CM, CandySix or other AOSP roms.
Depending on the version of ICE that got flashed on the phone you might need to revert back to an older version*. The newest ICE rom is based on an HTC 10 port and I've read several posts of users reporting that they couldn't use sunshine with an HTC 10 port.
* I don't know which version that would be. I've never used ICE so you would need to figure that out on your own.
Click to expand...
Click to collapse
So basically, no matter what rom I flash,sense or no sense based, I will need sunshine in order to have a working baseband?

No. Sunshine is needed for getting back to stock for installing upcoming OTAs. And in case you want to use a sense-based roms it's needed for being able to backup the stock boot.img. As explained before, you need to re-flash that one after you flashed the custom rom. The boot.img of 3.35.y (y is a placeholder for any possible number) custom roms isn't compatible with 3.x firmware if x is not equal to 35 (as in your case). At the moment your only option for not having to use sunshine would be flashing a non-sense-based rom and the kernel I linked in an earlier post. But as explained before you wouldn't be able to install upcoming updates like the one for Android N if you choose not to use sunshine.

Flippy498 said:
No. Sunshine is needed for getting back to stock for installing upcoming OTAs. And in case you want to use a sense-based roms it's needed for being able to backup the stock boot.img. As explained before, you need to re-flash that one after you flashed the custom rom. The boot.img of 3.35.y (y is a placeholder for any possible number) custom roms isn't compatible with 3.x firmware if x is not equal to 35 (as in your case). At the moment your only option for not having to use sunshine would be flashing a non-sense-based rom and the kernel I linked in an earlier post. But as explained before you wouldn't be able to install upcoming updates like the one for Android N if you choose not to use sunshine.
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Finally i have signal again,flashed slim 6 and monokernel. Thank you so much,i've learned something new about HTC now im going to return the phone to my friend,also i explained what you told me in order to have a sense based rom.

Unable to install stock RUU "FAILED

i hv a m8..Mid op6b70000 bootloader unlocked. s off.super cid 11111111..using TWRP recovery..cid changed 2 times.using custom rom ViperOneM8 6.1.0 latest..i also used many custom rom like leedroid,viper 5,android revolution hd..but now i installed custom rom android revolution hd by TWRPrecovery latest verson....after installing the rom phn always boot into bootloader..it can not boot into rom..i also installed another 2 custom rom but same thing happened again again..phn boot into bootloader..now i can only use viper m8 latest verson custom rom..it work parfectly...i can not use another custom rom bcz after installing phn boot intu bootloader...i want to return stock back...i downloaded RUU.exe frm htc official site...but when i try to flash it says error image...(0%)..i downloaded more then 4 RUU.zip.tried to flash with HBOOT(OP6BIMG)..some RUU says incorrect model id..i tried to install a RUU.zip with ADB FASTBOOT cmd windows...but it says failed...plz hepl me stock back...plzz..i can not use any custom rom just works viper 6 latest..can not back to stock...try from 4 days...plz help me stock back...super cid 11111111 using...

0P6B70000 is the Sprint version M8.
First of all, the Sprint version M8 is peculiar, as you can only use firmware and RUU intended specifically for Sprint M8. Do not try to flash any other M8 version RUU or firmware (aside from Sprint) while s-off as this is dangerous, and can lead to a permanent radio brick!!!
You can find Sprint RUUs on the following webpage: https://forum.xda-developers.com/showthread.php?t=2729173
However, I'm not convinced you necessarily need to flash RUU to solve your issue. Keep reading:
Another peculiarity of the Sprint M8, it uses different kernel from most other M8 versions. So you need to either user ROMs that specifically support the Sprint M8. Or else you need to replace the kernel with a Sprint-compatible kernel. If you don't know what that means, keep it simple and stick to what I said before - ROMs that specifically support Sprint M8 (and that is probably your best bet). That means ROMs from rither from the Sprint M8 Development forum section, or there are some ROMs in the "general" M8 section which support multiple versions, but you must confirm that Sprint is specifically supported (for the desire ROM). Either read the top posts of the desired ROM thread to see if it's mentioned, or do a search in the thread for "Sprint". Android Revolution, for example, does not support Sprint version M8. So not boot is expected.
It's not clear whether you need to actually flash RUU or not. It could be, you just need to flash a Sprint-compatible custom ROM. It's possible your firmware is outdated, in which case RUU or firmware is suggested to get your firmware up to date. But it's not clear whether you need to do that or not, based on the info you've provided. If you want further help on this, do fastboot getvar all, and post the result (delete IMEI and serial number before posting).